gitlab-org--gitlab-foss/spec/lib/gitlab/database/migration_helpers_spec.rb

2893 lines
104 KiB
Ruby

# frozen_string_literal: true
require 'spec_helper'
RSpec.describe Gitlab::Database::MigrationHelpers do
include Database::TableSchemaHelpers
include Database::TriggerHelpers
let(:model) do
ActiveRecord::Migration.new.extend(described_class)
end
before do
allow(model).to receive(:puts)
end
describe 'overridden dynamic model helpers' do
let(:test_table) { '_test_batching_table' }
before do
model.connection.execute(<<~SQL)
CREATE TABLE #{test_table} (
id integer NOT NULL PRIMARY KEY,
name text NOT NULL
);
INSERT INTO #{test_table} (id, name)
VALUES (1, 'bob'), (2, 'mary'), (3, 'amy');
SQL
end
describe '#define_batchable_model' do
it 'defines a batchable model with the migration connection' do
expect(model.define_batchable_model(test_table).count).to eq(3)
end
end
describe '#each_batch' do
before do
allow(model).to receive(:transaction_open?).and_return(false)
end
it 'calls each_batch with the migration connection' do
each_batch_name = ->(&block) do
model.each_batch(test_table, of: 2) do |batch|
block.call(batch.pluck(:name))
end
end
expect { |b| each_batch_name.call(&b) }.to yield_successive_args(%w[bob mary], %w[amy])
end
end
describe '#each_batch_range' do
before do
allow(model).to receive(:transaction_open?).and_return(false)
end
it 'calls each_batch with the migration connection' do
expect { |b| model.each_batch_range(test_table, of: 2, &b) }.to yield_successive_args([1, 2], [3, 3])
end
end
end
describe '#remove_timestamps' do
it 'can remove the default timestamps' do
Gitlab::Database::MigrationHelpers::DEFAULT_TIMESTAMP_COLUMNS.each do |column_name|
expect(model).to receive(:remove_column).with(:foo, column_name)
end
model.remove_timestamps(:foo)
end
it 'can remove custom timestamps' do
expect(model).to receive(:remove_column).with(:foo, :bar)
model.remove_timestamps(:foo, columns: [:bar])
end
end
describe '#add_timestamps_with_timezone' do
it 'adds "created_at" and "updated_at" fields with the "datetime_with_timezone" data type' do
Gitlab::Database::MigrationHelpers::DEFAULT_TIMESTAMP_COLUMNS.each do |column_name|
expect(model).to receive(:add_column)
.with(:foo, column_name, :datetime_with_timezone, { default: nil, null: false })
end
model.add_timestamps_with_timezone(:foo)
end
it 'can disable the NOT NULL constraint' do
Gitlab::Database::MigrationHelpers::DEFAULT_TIMESTAMP_COLUMNS.each do |column_name|
expect(model).to receive(:add_column)
.with(:foo, column_name, :datetime_with_timezone, { default: nil, null: true })
end
model.add_timestamps_with_timezone(:foo, null: true)
end
it 'can add just one column' do
expect(model).to receive(:add_column).with(:foo, :created_at, :datetime_with_timezone, anything)
expect(model).not_to receive(:add_column).with(:foo, :updated_at, :datetime_with_timezone, anything)
model.add_timestamps_with_timezone(:foo, columns: [:created_at])
end
it 'can add choice of acceptable columns' do
expect(model).to receive(:add_column).with(:foo, :created_at, :datetime_with_timezone, anything)
expect(model).to receive(:add_column).with(:foo, :deleted_at, :datetime_with_timezone, anything)
expect(model).to receive(:add_column).with(:foo, :processed_at, :datetime_with_timezone, anything)
expect(model).not_to receive(:add_column).with(:foo, :updated_at, :datetime_with_timezone, anything)
model.add_timestamps_with_timezone(:foo, columns: [:created_at, :deleted_at, :processed_at])
end
it 'cannot add unacceptable column names' do
expect do
model.add_timestamps_with_timezone(:foo, columns: [:bar])
end.to raise_error %r/Illegal timestamp column name/
end
end
describe '#create_table_with_constraints' do
let(:table_name) { :test_table }
let(:column_attributes) do
[
{ name: 'id', sql_type: 'bigint', null: false, default: nil },
{ name: 'created_at', sql_type: 'timestamp with time zone', null: false, default: nil },
{ name: 'updated_at', sql_type: 'timestamp with time zone', null: false, default: nil },
{ name: 'some_id', sql_type: 'integer', null: false, default: nil },
{ name: 'active', sql_type: 'boolean', null: false, default: 'true' },
{ name: 'name', sql_type: 'text', null: true, default: nil }
]
end
before do
allow(model).to receive(:transaction_open?).and_return(true)
end
context 'when no check constraints are defined' do
it 'creates the table as expected' do
model.create_table_with_constraints table_name do |t|
t.timestamps_with_timezone
t.integer :some_id, null: false
t.boolean :active, null: false, default: true
t.text :name
end
expect_table_columns_to_match(column_attributes, table_name)
end
end
context 'when check constraints are defined' do
context 'when the text_limit is explicity named' do
it 'creates the table as expected' do
model.create_table_with_constraints table_name do |t|
t.timestamps_with_timezone
t.integer :some_id, null: false
t.boolean :active, null: false, default: true
t.text :name
t.text_limit :name, 255, name: 'check_name_length'
t.check_constraint :some_id_is_positive, 'some_id > 0'
end
expect_table_columns_to_match(column_attributes, table_name)
expect_check_constraint(table_name, 'check_name_length', 'char_length(name) <= 255')
expect_check_constraint(table_name, 'some_id_is_positive', 'some_id > 0')
end
end
context 'when the text_limit is not named' do
it 'creates the table as expected, naming the text limit' do
model.create_table_with_constraints table_name do |t|
t.timestamps_with_timezone
t.integer :some_id, null: false
t.boolean :active, null: false, default: true
t.text :name
t.text_limit :name, 255
t.check_constraint :some_id_is_positive, 'some_id > 0'
end
expect_table_columns_to_match(column_attributes, table_name)
expect_check_constraint(table_name, 'check_cda6f69506', 'char_length(name) <= 255')
expect_check_constraint(table_name, 'some_id_is_positive', 'some_id > 0')
end
end
it 'runs the change within a with_lock_retries' do
expect(model).to receive(:with_lock_retries).ordered.and_yield
expect(model).to receive(:create_table).ordered.and_call_original
expect(model).to receive(:execute).with(<<~SQL).ordered
ALTER TABLE "#{table_name}"\nADD CONSTRAINT "check_cda6f69506" CHECK (char_length("name") <= 255)
SQL
model.create_table_with_constraints table_name do |t|
t.text :name
t.text_limit :name, 255
end
end
context 'when with_lock_retries re-runs the block' do
it 'only creates constraint for unique definitions' do
expected_sql = <<~SQL
ALTER TABLE "#{table_name}"\nADD CONSTRAINT "check_cda6f69506" CHECK (char_length("name") <= 255)
SQL
expect(model).to receive(:create_table).twice.and_call_original
expect(model).to receive(:execute).with(expected_sql).and_raise(ActiveRecord::LockWaitTimeout)
expect(model).to receive(:execute).with(expected_sql).and_call_original
model.create_table_with_constraints table_name do |t|
t.timestamps_with_timezone
t.integer :some_id, null: false
t.boolean :active, null: false, default: true
t.text :name
t.text_limit :name, 255
end
expect_table_columns_to_match(column_attributes, table_name)
expect_check_constraint(table_name, 'check_cda6f69506', 'char_length(name) <= 255')
end
end
context 'when constraints are given invalid names' do
let(:expected_max_length) { described_class::MAX_IDENTIFIER_NAME_LENGTH }
let(:expected_error_message) { "The maximum allowed constraint name is #{expected_max_length} characters" }
context 'when the explicit text limit name is not valid' do
it 'raises an error' do
too_long_length = expected_max_length + 1
expect do
model.create_table_with_constraints table_name do |t|
t.timestamps_with_timezone
t.integer :some_id, null: false
t.boolean :active, null: false, default: true
t.text :name
t.text_limit :name, 255, name: ('a' * too_long_length)
t.check_constraint :some_id_is_positive, 'some_id > 0'
end
end.to raise_error(expected_error_message)
end
end
context 'when a check constraint name is not valid' do
it 'raises an error' do
too_long_length = expected_max_length + 1
expect do
model.create_table_with_constraints table_name do |t|
t.timestamps_with_timezone
t.integer :some_id, null: false
t.boolean :active, null: false, default: true
t.text :name
t.text_limit :name, 255
t.check_constraint ('a' * too_long_length), 'some_id > 0'
end
end.to raise_error(expected_error_message)
end
end
end
end
end
describe '#add_concurrent_index' do
context 'outside a transaction' do
before do
allow(model).to receive(:transaction_open?).and_return(false)
allow(model).to receive(:disable_statement_timeout).and_call_original
end
it 'creates the index concurrently' do
expect(model).to receive(:add_index)
.with(:users, :foo, algorithm: :concurrently)
model.add_concurrent_index(:users, :foo)
end
it 'creates unique index concurrently' do
expect(model).to receive(:add_index)
.with(:users, :foo, { algorithm: :concurrently, unique: true })
model.add_concurrent_index(:users, :foo, unique: true)
end
context 'when the index exists and is valid' do
before do
model.add_index :users, :id, unique: true
end
it 'does leaves the existing index' do
expect(model).to receive(:index_exists?)
.with(:users, :id, { algorithm: :concurrently, unique: true }).and_call_original
expect(model).not_to receive(:remove_index)
expect(model).not_to receive(:add_index)
model.add_concurrent_index(:users, :id, unique: true)
end
end
context 'when an invalid copy of the index exists' do
before do
model.add_index :users, :id, unique: true, name: index_name
model.connection.execute(<<~SQL)
UPDATE pg_index
SET indisvalid = false
WHERE indexrelid = '#{index_name}'::regclass
SQL
end
context 'when the default name is used' do
let(:index_name) { model.index_name(:users, :id) }
it 'drops and recreates the index' do
expect(model).to receive(:index_exists?)
.with(:users, :id, { algorithm: :concurrently, unique: true }).and_call_original
expect(model).to receive(:index_invalid?).with(index_name, schema: nil).and_call_original
expect(model).to receive(:remove_concurrent_index_by_name).with(:users, index_name)
expect(model).to receive(:add_index)
.with(:users, :id, { algorithm: :concurrently, unique: true })
model.add_concurrent_index(:users, :id, unique: true)
end
end
context 'when a custom name is used' do
let(:index_name) { 'my_test_index' }
it 'drops and recreates the index' do
expect(model).to receive(:index_exists?)
.with(:users, :id, { algorithm: :concurrently, unique: true, name: index_name }).and_call_original
expect(model).to receive(:index_invalid?).with(index_name, schema: nil).and_call_original
expect(model).to receive(:remove_concurrent_index_by_name).with(:users, index_name)
expect(model).to receive(:add_index)
.with(:users, :id, { algorithm: :concurrently, unique: true, name: index_name })
model.add_concurrent_index(:users, :id, unique: true, name: index_name)
end
end
context 'when a qualified table name is used' do
let(:other_schema) { 'foo_schema' }
let(:index_name) { 'my_test_index' }
let(:table_name) { "#{other_schema}.users" }
before do
model.connection.execute(<<~SQL)
CREATE SCHEMA #{other_schema};
ALTER TABLE users SET SCHEMA #{other_schema};
SQL
end
it 'drops and recreates the index' do
expect(model).to receive(:index_exists?)
.with(table_name, :id, { algorithm: :concurrently, unique: true, name: index_name }).and_call_original
expect(model).to receive(:index_invalid?).with(index_name, schema: other_schema).and_call_original
expect(model).to receive(:remove_concurrent_index_by_name).with(table_name, index_name)
expect(model).to receive(:add_index)
.with(table_name, :id, { algorithm: :concurrently, unique: true, name: index_name })
model.add_concurrent_index(table_name, :id, unique: true, name: index_name)
end
end
end
it 'unprepares the async index creation' do
expect(model).to receive(:add_index)
.with(:users, :foo, algorithm: :concurrently)
expect(model).to receive(:unprepare_async_index)
.with(:users, :foo, algorithm: :concurrently)
model.add_concurrent_index(:users, :foo)
end
end
context 'inside a transaction' do
it 'raises RuntimeError' do
expect(model).to receive(:transaction_open?).and_return(true)
expect { model.add_concurrent_index(:users, :foo) }
.to raise_error(RuntimeError)
end
end
end
describe '#remove_concurrent_index' do
context 'outside a transaction' do
before do
allow(model).to receive(:transaction_open?).and_return(false)
allow(model).to receive(:index_exists?).and_return(true)
allow(model).to receive(:disable_statement_timeout).and_call_original
end
describe 'by column name' do
it 'removes the index concurrently' do
expect(model).to receive(:remove_index)
.with(:users, { algorithm: :concurrently, column: :foo })
model.remove_concurrent_index(:users, :foo)
end
it 'does nothing if the index does not exist' do
expect(model).to receive(:index_exists?)
.with(:users, :foo, { algorithm: :concurrently, unique: true }).and_return(false)
expect(model).not_to receive(:remove_index)
model.remove_concurrent_index(:users, :foo, unique: true)
end
it 'unprepares the async index creation' do
expect(model).to receive(:remove_index)
.with(:users, { algorithm: :concurrently, column: :foo })
expect(model).to receive(:unprepare_async_index)
.with(:users, :foo, { algorithm: :concurrently })
model.remove_concurrent_index(:users, :foo)
end
describe 'by index name' do
before do
allow(model).to receive(:index_exists_by_name?).with(:users, "index_x_by_y").and_return(true)
end
it 'removes the index concurrently by index name' do
expect(model).to receive(:remove_index)
.with(:users, { algorithm: :concurrently, name: "index_x_by_y" })
model.remove_concurrent_index_by_name(:users, "index_x_by_y")
end
it 'does nothing if the index does not exist' do
expect(model).to receive(:index_exists_by_name?).with(:users, "index_x_by_y").and_return(false)
expect(model).not_to receive(:remove_index)
model.remove_concurrent_index_by_name(:users, "index_x_by_y")
end
it 'removes the index with keyword arguments' do
expect(model).to receive(:remove_index)
.with(:users, { algorithm: :concurrently, name: "index_x_by_y" })
model.remove_concurrent_index_by_name(:users, name: "index_x_by_y")
end
it 'raises an error if the index is blank' do
expect do
model.remove_concurrent_index_by_name(:users, wrong_key: "index_x_by_y")
end.to raise_error 'remove_concurrent_index_by_name must get an index name as the second argument'
end
it 'unprepares the async index creation' do
expect(model).to receive(:remove_index)
.with(:users, { algorithm: :concurrently, name: "index_x_by_y" })
expect(model).to receive(:unprepare_async_index_by_name)
.with(:users, "index_x_by_y", { algorithm: :concurrently })
model.remove_concurrent_index_by_name(:users, "index_x_by_y")
end
end
end
end
context 'inside a transaction' do
it 'raises RuntimeError' do
expect(model).to receive(:transaction_open?).and_return(true)
expect { model.remove_concurrent_index(:users, :foo) }
.to raise_error(RuntimeError)
end
end
end
describe '#remove_foreign_key_if_exists' do
context 'when the foreign key does not exist' do
before do
allow(model).to receive(:foreign_key_exists?).and_return(false)
end
it 'does nothing' do
expect(model).not_to receive(:remove_foreign_key)
model.remove_foreign_key_if_exists(:projects, :users, column: :user_id)
end
end
context 'when the foreign key exists' do
before do
allow(model).to receive(:foreign_key_exists?).and_return(true)
end
it 'removes the foreign key' do
expect(model).to receive(:remove_foreign_key).with(:projects, :users, { column: :user_id })
model.remove_foreign_key_if_exists(:projects, :users, column: :user_id)
end
context 'when the target table is not given' do
it 'passes the options as the second parameter' do
expect(model).to receive(:remove_foreign_key).with(:projects, { column: :user_id })
model.remove_foreign_key_if_exists(:projects, column: :user_id)
end
end
context 'when the reverse_lock_order option is given' do
it 'requests for lock before removing the foreign key' do
expect(model).to receive(:transaction_open?).and_return(true)
expect(model).to receive(:execute).with(/LOCK TABLE users, projects/)
expect(model).not_to receive(:remove_foreign_key).with(:projects, :users)
model.remove_foreign_key_if_exists(:projects, :users, column: :user_id, reverse_lock_order: true)
end
context 'when not inside a transaction' do
it 'does not lock' do
expect(model).to receive(:transaction_open?).and_return(false)
expect(model).not_to receive(:execute).with(/LOCK TABLE users, projects/)
expect(model).to receive(:remove_foreign_key).with(:projects, :users, { column: :user_id })
model.remove_foreign_key_if_exists(:projects, :users, column: :user_id, reverse_lock_order: true)
end
end
end
end
end
describe '#add_concurrent_foreign_key' do
before do
allow(model).to receive(:foreign_key_exists?).and_return(false)
end
context 'inside a transaction' do
it 'raises an error' do
expect(model).to receive(:transaction_open?).and_return(true)
expect do
model.add_concurrent_foreign_key(:projects, :users, column: :user_id)
end.to raise_error(RuntimeError)
end
end
context 'outside a transaction' do
before do
allow(model).to receive(:transaction_open?).and_return(false)
end
context 'target column' do
it 'defaults to (id) when no custom target column is provided' do
expect(model).to receive(:with_lock_retries).and_call_original
expect(model).to receive(:disable_statement_timeout).and_call_original
expect(model).to receive(:statement_timeout_disabled?).and_return(false)
expect(model).to receive(:execute).with(/SET statement_timeout TO/)
expect(model).to receive(:execute).ordered.with(/VALIDATE CONSTRAINT/)
expect(model).to receive(:execute).ordered.with(/RESET statement_timeout/)
expect(model).to receive(:execute).with(/REFERENCES users \(id\)/)
model.add_concurrent_foreign_key(:projects, :users,
column: :user_id)
end
it 'references the custom taget column when provided' do
expect(model).to receive(:with_lock_retries).and_call_original
expect(model).to receive(:disable_statement_timeout).and_call_original
expect(model).to receive(:statement_timeout_disabled?).and_return(false)
expect(model).to receive(:execute).with(/SET statement_timeout TO/)
expect(model).to receive(:execute).ordered.with(/VALIDATE CONSTRAINT/)
expect(model).to receive(:execute).ordered.with(/RESET statement_timeout/)
expect(model).to receive(:execute).with(/REFERENCES users \(id_convert_to_bigint\)/)
model.add_concurrent_foreign_key(:projects, :users,
column: :user_id,
target_column: :id_convert_to_bigint)
end
end
context 'ON DELETE statements' do
context 'on_delete: :nullify' do
it 'appends ON DELETE SET NULL statement' do
expect(model).to receive(:with_lock_retries).and_call_original
expect(model).to receive(:disable_statement_timeout).and_call_original
expect(model).to receive(:statement_timeout_disabled?).and_return(false)
expect(model).to receive(:execute).with(/SET statement_timeout TO/)
expect(model).to receive(:execute).ordered.with(/VALIDATE CONSTRAINT/)
expect(model).to receive(:execute).ordered.with(/RESET statement_timeout/)
expect(model).to receive(:execute).with(/ON DELETE SET NULL/)
model.add_concurrent_foreign_key(:projects, :users,
column: :user_id,
on_delete: :nullify)
end
end
context 'on_delete: :cascade' do
it 'appends ON DELETE CASCADE statement' do
expect(model).to receive(:with_lock_retries).and_call_original
expect(model).to receive(:disable_statement_timeout).and_call_original
expect(model).to receive(:statement_timeout_disabled?).and_return(false)
expect(model).to receive(:execute).with(/SET statement_timeout TO/)
expect(model).to receive(:execute).ordered.with(/VALIDATE CONSTRAINT/)
expect(model).to receive(:execute).ordered.with(/RESET statement_timeout/)
expect(model).to receive(:execute).with(/ON DELETE CASCADE/)
model.add_concurrent_foreign_key(:projects, :users,
column: :user_id,
on_delete: :cascade)
end
end
context 'on_delete: nil' do
it 'appends no ON DELETE statement' do
expect(model).to receive(:with_lock_retries).and_call_original
expect(model).to receive(:disable_statement_timeout).and_call_original
expect(model).to receive(:statement_timeout_disabled?).and_return(false)
expect(model).to receive(:execute).with(/SET statement_timeout TO/)
expect(model).to receive(:execute).ordered.with(/VALIDATE CONSTRAINT/)
expect(model).to receive(:execute).ordered.with(/RESET statement_timeout/)
expect(model).not_to receive(:execute).with(/ON DELETE/)
model.add_concurrent_foreign_key(:projects, :users,
column: :user_id,
on_delete: nil)
end
end
end
context 'when no custom key name is supplied' do
it 'creates a concurrent foreign key and validates it' do
expect(model).to receive(:with_lock_retries).and_call_original
expect(model).to receive(:disable_statement_timeout).and_call_original
expect(model).to receive(:statement_timeout_disabled?).and_return(false)
expect(model).to receive(:execute).with(/SET statement_timeout TO/)
expect(model).to receive(:execute).ordered.with(/NOT VALID/)
expect(model).to receive(:execute).ordered.with(/VALIDATE CONSTRAINT/)
expect(model).to receive(:execute).ordered.with(/RESET statement_timeout/)
model.add_concurrent_foreign_key(:projects, :users, column: :user_id)
end
it 'does not create a foreign key if it exists already' do
name = model.concurrent_foreign_key_name(:projects, :user_id)
expect(model).to receive(:foreign_key_exists?).with(:projects, :users,
column: :user_id,
on_delete: :cascade,
name: name,
primary_key: :id).and_return(true)
expect(model).not_to receive(:execute).with(/ADD CONSTRAINT/)
expect(model).to receive(:execute).with(/VALIDATE CONSTRAINT/)
model.add_concurrent_foreign_key(:projects, :users, column: :user_id)
end
end
context 'when a custom key name is supplied' do
context 'for creating a new foreign key for a column that does not presently exist' do
it 'creates a new foreign key' do
expect(model).to receive(:with_lock_retries).and_call_original
expect(model).to receive(:disable_statement_timeout).and_call_original
expect(model).to receive(:statement_timeout_disabled?).and_return(false)
expect(model).to receive(:execute).with(/SET statement_timeout TO/)
expect(model).to receive(:execute).ordered.with(/NOT VALID/)
expect(model).to receive(:execute).ordered.with(/VALIDATE CONSTRAINT.+foo/)
expect(model).to receive(:execute).ordered.with(/RESET statement_timeout/)
model.add_concurrent_foreign_key(:projects, :users, column: :user_id, name: :foo)
end
end
context 'for creating a duplicate foreign key for a column that presently exists' do
context 'when the supplied key name is the same as the existing foreign key name' do
it 'does not create a new foreign key' do
expect(model).to receive(:foreign_key_exists?).with(:projects, :users,
name: :foo,
primary_key: :id,
on_delete: :cascade,
column: :user_id).and_return(true)
expect(model).not_to receive(:execute).with(/ADD CONSTRAINT/)
expect(model).to receive(:execute).with(/VALIDATE CONSTRAINT/)
model.add_concurrent_foreign_key(:projects, :users, column: :user_id, name: :foo)
end
end
context 'when the supplied key name is different from the existing foreign key name' do
it 'creates a new foreign key' do
expect(model).to receive(:with_lock_retries).and_call_original
expect(model).to receive(:disable_statement_timeout).and_call_original
expect(model).to receive(:statement_timeout_disabled?).and_return(false)
expect(model).to receive(:execute).with(/SET statement_timeout TO/)
expect(model).to receive(:execute).ordered.with(/NOT VALID/)
expect(model).to receive(:execute).ordered.with(/VALIDATE CONSTRAINT.+bar/)
expect(model).to receive(:execute).ordered.with(/RESET statement_timeout/)
model.add_concurrent_foreign_key(:projects, :users, column: :user_id, name: :bar)
end
end
end
end
describe 'validate option' do
let(:args) { [:projects, :users] }
let(:options) { { column: :user_id, on_delete: nil } }
context 'when validate is supplied with a falsey value' do
it_behaves_like 'skips validation', validate: false
it_behaves_like 'skips validation', validate: nil
end
context 'when validate is supplied with a truthy value' do
it_behaves_like 'performs validation', validate: true
it_behaves_like 'performs validation', validate: :whatever
end
context 'when validate is not supplied' do
it_behaves_like 'performs validation', {}
end
end
context 'when the reverse_lock_order flag is set' do
it 'explicitly locks the tables in target-source order', :aggregate_failures do
expect(model).to receive(:with_lock_retries).and_call_original
expect(model).to receive(:disable_statement_timeout).and_call_original
expect(model).to receive(:statement_timeout_disabled?).and_return(false)
expect(model).to receive(:execute).with(/SET statement_timeout TO/)
expect(model).to receive(:execute).ordered.with(/VALIDATE CONSTRAINT/)
expect(model).to receive(:execute).ordered.with(/RESET statement_timeout/)
expect(model).to receive(:execute).with('LOCK TABLE users, projects IN SHARE ROW EXCLUSIVE MODE')
expect(model).to receive(:execute).with(/REFERENCES users \(id\)/)
model.add_concurrent_foreign_key(:projects, :users, column: :user_id, reverse_lock_order: true)
end
end
context 'when creating foreign key for a group of columns' do
it 'references the custom target columns when provided', :aggregate_failures do
expect(model).to receive(:with_lock_retries).and_yield
expect(model).to receive(:execute).with(
"ALTER TABLE projects\n" \
"ADD CONSTRAINT fk_multiple_columns\n" \
"FOREIGN KEY \(partition_number, user_id\)\n" \
"REFERENCES users \(partition_number, id\)\n" \
"ON DELETE CASCADE\n" \
"NOT VALID;\n"
)
model.add_concurrent_foreign_key(
:projects,
:users,
column: [:partition_number, :user_id],
target_column: [:partition_number, :id],
validate: false,
name: :fk_multiple_columns
)
end
context 'when foreign key is already defined' do
before do
expect(model).to receive(:foreign_key_exists?).with(
:projects,
:users,
{
column: [:partition_number, :user_id],
name: :fk_multiple_columns,
on_delete: :cascade,
primary_key: [:partition_number, :id]
}
).and_return(true)
end
it 'does not create foreign key', :aggregate_failures do
expect(model).not_to receive(:with_lock_retries).and_yield
expect(model).not_to receive(:execute).with(/FOREIGN KEY/)
model.add_concurrent_foreign_key(
:projects,
:users,
column: [:partition_number, :user_id],
target_column: [:partition_number, :id],
validate: false,
name: :fk_multiple_columns
)
end
end
end
end
end
describe '#validate_foreign_key' do
context 'when name is provided' do
it 'does not infer the foreign key constraint name' do
expect(model).to receive(:foreign_key_exists?).with(:projects, name: :foo).and_return(true)
aggregate_failures do
expect(model).not_to receive(:concurrent_foreign_key_name)
expect(model).to receive(:disable_statement_timeout).and_call_original
expect(model).to receive(:statement_timeout_disabled?).and_return(false)
expect(model).to receive(:execute).with(/SET statement_timeout TO/)
expect(model).to receive(:execute).ordered.with(/ALTER TABLE projects VALIDATE CONSTRAINT/)
expect(model).to receive(:execute).ordered.with(/RESET statement_timeout/)
end
model.validate_foreign_key(:projects, :user_id, name: :foo)
end
end
context 'when name is not provided' do
it 'infers the foreign key constraint name' do
expect(model).to receive(:foreign_key_exists?).with(:projects, name: anything).and_return(true)
aggregate_failures do
expect(model).to receive(:concurrent_foreign_key_name)
expect(model).to receive(:disable_statement_timeout).and_call_original
expect(model).to receive(:statement_timeout_disabled?).and_return(false)
expect(model).to receive(:execute).with(/SET statement_timeout TO/)
expect(model).to receive(:execute).ordered.with(/ALTER TABLE projects VALIDATE CONSTRAINT/)
expect(model).to receive(:execute).ordered.with(/RESET statement_timeout/)
end
model.validate_foreign_key(:projects, :user_id)
end
context 'when the inferred foreign key constraint does not exist' do
it 'raises an error' do
expect(model).to receive(:foreign_key_exists?).and_return(false)
error_message = /Could not find foreign key "fk_name" on table "projects"/
expect { model.validate_foreign_key(:projects, :user_id, name: :fk_name) }.to raise_error(error_message)
end
end
end
end
describe '#concurrent_foreign_key_name' do
it 'returns the name for a foreign key' do
name = model.concurrent_foreign_key_name(:this_is_a_very_long_table_name,
:with_a_very_long_column_name)
expect(name).to be_an_instance_of(String)
expect(name.length).to eq(13)
end
context 'when using multiple columns' do
it 'returns the name of the foreign key', :aggregate_failures do
result = model.concurrent_foreign_key_name(:table_name, [:partition_number, :id])
expect(result).to be_an_instance_of(String)
expect(result.length).to eq(13)
end
end
end
describe '#foreign_key_exists?' do
before do
key = ActiveRecord::ConnectionAdapters::ForeignKeyDefinition.new(
:projects, :users,
{
column: :non_standard_id,
name: :fk_projects_users_non_standard_id,
on_delete: :cascade,
primary_key: :id
}
)
allow(model).to receive(:foreign_keys).with(:projects).and_return([key])
end
shared_examples_for 'foreign key checks' do
it 'finds existing foreign keys by column' do
expect(model.foreign_key_exists?(:projects, target_table, column: :non_standard_id)).to be_truthy
end
it 'finds existing foreign keys by name' do
expect(model.foreign_key_exists?(:projects, target_table, name: :fk_projects_users_non_standard_id)).to be_truthy
end
it 'finds existing foreign_keys by name and column' do
expect(model.foreign_key_exists?(:projects, target_table, name: :fk_projects_users_non_standard_id, column: :non_standard_id)).to be_truthy
end
it 'finds existing foreign_keys by name, column and on_delete' do
expect(model.foreign_key_exists?(:projects, target_table, name: :fk_projects_users_non_standard_id, column: :non_standard_id, on_delete: :cascade)).to be_truthy
end
it 'finds existing foreign keys by target table only' do
expect(model.foreign_key_exists?(:projects, target_table)).to be_truthy
end
it 'compares by column name if given' do
expect(model.foreign_key_exists?(:projects, target_table, column: :user_id)).to be_falsey
end
it 'compares by target column name if given' do
expect(model.foreign_key_exists?(:projects, target_table, primary_key: :user_id)).to be_falsey
expect(model.foreign_key_exists?(:projects, target_table, primary_key: :id)).to be_truthy
end
it 'compares by foreign key name if given' do
expect(model.foreign_key_exists?(:projects, target_table, name: :non_existent_foreign_key_name)).to be_falsey
end
it 'compares by foreign key name and column if given' do
expect(model.foreign_key_exists?(:projects, target_table, name: :non_existent_foreign_key_name, column: :non_standard_id)).to be_falsey
end
it 'compares by foreign key name, column and on_delete if given' do
expect(model.foreign_key_exists?(:projects, target_table, name: :fk_projects_users_non_standard_id, column: :non_standard_id, on_delete: :nullify)).to be_falsey
end
end
context 'without specifying a target table' do
let(:target_table) { nil }
it_behaves_like 'foreign key checks'
end
context 'specifying a target table' do
let(:target_table) { :users }
it_behaves_like 'foreign key checks'
end
it 'compares by target table if no column given' do
expect(model.foreign_key_exists?(:projects, :other_table)).to be_falsey
end
context 'with foreign key using multiple columns' do
before do
key = ActiveRecord::ConnectionAdapters::ForeignKeyDefinition.new(
:projects, :users,
{
column: [:partition_number, :id],
name: :fk_projects_users_partition_number_id,
on_delete: :cascade,
primary_key: [:partition_number, :id]
}
)
allow(model).to receive(:foreign_keys).with(:projects).and_return([key])
end
it 'finds existing foreign keys by columns' do
expect(model.foreign_key_exists?(:projects, :users, column: [:partition_number, :id])).to be_truthy
end
it 'finds existing foreign keys by name' do
expect(model.foreign_key_exists?(:projects, :users, name: :fk_projects_users_partition_number_id)).to be_truthy
end
it 'finds existing foreign_keys by name and column' do
expect(model.foreign_key_exists?(:projects, :users, name: :fk_projects_users_partition_number_id, column: [:partition_number, :id])).to be_truthy
end
it 'finds existing foreign_keys by name, column and on_delete' do
expect(model.foreign_key_exists?(:projects, :users, name: :fk_projects_users_partition_number_id, column: [:partition_number, :id], on_delete: :cascade)).to be_truthy
end
it 'finds existing foreign keys by target table only' do
expect(model.foreign_key_exists?(:projects, :users)).to be_truthy
end
it 'compares by column name if given' do
expect(model.foreign_key_exists?(:projects, :users, column: :id)).to be_falsey
end
it 'compares by target column name if given' do
expect(model.foreign_key_exists?(:projects, :users, primary_key: :user_id)).to be_falsey
expect(model.foreign_key_exists?(:projects, :users, primary_key: [:partition_number, :id])).to be_truthy
end
it 'compares by foreign key name if given' do
expect(model.foreign_key_exists?(:projects, :users, name: :non_existent_foreign_key_name)).to be_falsey
end
it 'compares by foreign key name and column if given' do
expect(model.foreign_key_exists?(:projects, :users, name: :non_existent_foreign_key_name, column: [:partition_number, :id])).to be_falsey
end
it 'compares by foreign key name, column and on_delete if given' do
expect(model.foreign_key_exists?(:projects, :users, name: :fk_projects_users_partition_number_id, column: [:partition_number, :id], on_delete: :nullify)).to be_falsey
end
end
end
describe '#true_value' do
it 'returns the appropriate value' do
expect(model.true_value).to eq("'t'")
end
end
describe '#false_value' do
it 'returns the appropriate value' do
expect(model.false_value).to eq("'f'")
end
end
describe '#update_column_in_batches' do
context 'when running outside of a transaction' do
before do
expect(model).to receive(:transaction_open?).and_return(false)
create_list(:project, 5)
end
it 'updates all the rows in a table' do
model.update_column_in_batches(:projects, :description_html, 'foo')
expect(Project.where(description_html: 'foo').count).to eq(5)
end
it 'updates boolean values correctly' do
model.update_column_in_batches(:projects, :archived, true)
expect(Project.where(archived: true).count).to eq(5)
end
context 'when a block is supplied' do
it 'yields an Arel table and query object to the supplied block' do
first_id = Project.first.id
model.update_column_in_batches(:projects, :archived, true) do |t, query|
query.where(t[:id].eq(first_id))
end
expect(Project.where(archived: true).count).to eq(1)
end
end
context 'when the value is Arel.sql (Arel::Nodes::SqlLiteral)' do
it 'updates the value as a SQL expression' do
model.update_column_in_batches(:projects, :star_count, Arel.sql('1+1'))
expect(Project.sum(:star_count)).to eq(2 * Project.count)
end
end
context 'when the table is write-locked' do
let(:test_table) { '_test_table' }
let(:lock_writes_manager) do
Gitlab::Database::LockWritesManager.new(
table_name: test_table,
connection: model.connection,
database_name: 'main'
)
end
before do
model.connection.execute(<<~SQL)
CREATE TABLE #{test_table} (id integer NOT NULL, value integer NOT NULL DEFAULT 0);
INSERT INTO #{test_table} (id, value)
VALUES (1, 1), (2, 2), (3, 3)
SQL
lock_writes_manager.lock_writes
end
it 'disables the write-lock trigger function' do
expect do
model.update_column_in_batches(test_table, :value, Arel.sql('1+1'), disable_lock_writes: true)
end.not_to raise_error
end
it 'raises an error if it does not disable the trigger function' do
expect do
model.update_column_in_batches(test_table, :value, Arel.sql('1+1'), disable_lock_writes: false)
end.to raise_error(ActiveRecord::StatementInvalid, /Table: "#{test_table}" is write protected/)
end
end
end
context 'when running inside the transaction' do
it 'raises RuntimeError' do
expect(model).to receive(:transaction_open?).and_return(true)
expect do
model.update_column_in_batches(:projects, :star_count, Arel.sql('1+1'))
end.to raise_error(RuntimeError)
end
end
end
describe '#add_column_with_default' do
let(:column) { Project.columns.find { |c| c.name == "id" } }
it 'delegates to #add_column' do
expect(model).to receive(:add_column).with(:projects, :foo, :integer, default: 10, limit: nil, null: true)
model.add_column_with_default(:projects, :foo, :integer,
default: 10,
allow_null: true)
end
end
describe '#rename_column_concurrently' do
context 'in a transaction' do
it 'raises RuntimeError' do
allow(model).to receive(:transaction_open?).and_return(true)
expect { model.rename_column_concurrently(:users, :old, :new) }
.to raise_error(RuntimeError)
end
end
context 'outside a transaction' do
let(:old_column) do
double(:column,
type: :integer,
limit: 8,
default: 0,
null: false,
precision: 5,
scale: 1)
end
let(:trigger_name) { model.rename_trigger_name(:users, :old, :new) }
before do
allow(model).to receive(:transaction_open?).and_return(false)
end
context 'when the column to rename exists' do
before do
allow(model).to receive(:column_for).and_return(old_column)
end
it 'renames a column concurrently' do
expect(Gitlab::Database::QueryAnalyzers::GitlabSchemasValidateConnection).to receive(:with_suppressed).and_yield
expect(model).to receive(:check_trigger_permissions!).with(:users)
expect(model).to receive(:install_rename_triggers)
.with(:users, :old, :new)
expect(model).to receive(:add_column)
.with(:users, :new, :integer,
limit: old_column.limit,
precision: old_column.precision,
scale: old_column.scale)
expect(model).to receive(:change_column_default)
.with(:users, :new, old_column.default)
expect(model).to receive(:update_column_in_batches)
expect(model).to receive(:add_not_null_constraint).with(:users, :new)
expect(model).to receive(:copy_indexes).with(:users, :old, :new)
expect(model).to receive(:copy_foreign_keys).with(:users, :old, :new)
expect(model).to receive(:copy_check_constraints).with(:users, :old, :new)
model.rename_column_concurrently(:users, :old, :new)
end
context 'with existing records and type casting' do
let(:trigger_name) { model.rename_trigger_name(:users, :id, :new) }
let(:user) { create(:user) }
let(:copy_trigger) { double('copy trigger') }
let(:connection) { ActiveRecord::Migration.connection }
before do
expect(Gitlab::Database::QueryAnalyzers::GitlabSchemasValidateConnection).to receive(:with_suppressed).and_yield
expect(Gitlab::Database::UnidirectionalCopyTrigger).to receive(:on_table)
.with(:users, connection: connection).and_return(copy_trigger)
end
it 'copies the value to the new column using the type_cast_function', :aggregate_failures do
expect(model).to receive(:copy_indexes).with(:users, :id, :new)
expect(model).to receive(:add_not_null_constraint).with(:users, :new)
expect(model).to receive(:execute).with("SELECT set_config('lock_writes.users', 'false', true)")
expect(model).to receive(:execute).with("UPDATE \"users\" SET \"new\" = cast_to_jsonb_with_default(\"users\".\"id\") WHERE \"users\".\"id\" >= #{user.id}")
expect(copy_trigger).to receive(:create).with(:id, :new, trigger_name: nil)
model.rename_column_concurrently(:users, :id, :new, type_cast_function: 'cast_to_jsonb_with_default')
end
end
it 'passes the batch_column_name' do
expect(model).to receive(:column_exists?).with(:users, :other_batch_column).and_return(true)
expect(model).to receive(:check_trigger_permissions!).and_return(true)
expect(model).to receive(:create_column_from).with(
:users, :old, :new, type: nil, batch_column_name: :other_batch_column, type_cast_function: nil
).and_return(true)
expect(model).to receive(:install_rename_triggers).and_return(true)
model.rename_column_concurrently(:users, :old, :new, batch_column_name: :other_batch_column)
end
it 'passes the type_cast_function' do
expect(model).to receive(:create_column_from).with(
:users, :old, :new, type: nil, batch_column_name: :id, type_cast_function: 'JSON'
).and_return(true)
model.rename_column_concurrently(:users, :old, :new, type_cast_function: 'JSON')
end
it 'raises an error with invalid batch_column_name' do
expect do
model.rename_column_concurrently(:users, :old, :new, batch_column_name: :invalid)
end.to raise_error(RuntimeError, /Column invalid does not exist on users/)
end
context 'when default is false' do
let(:old_column) do
double(:column,
type: :boolean,
limit: nil,
default: false,
null: false,
precision: nil,
scale: nil)
end
it 'copies the default to the new column' do
expect(Gitlab::Database::QueryAnalyzers::GitlabSchemasValidateConnection).to receive(:with_suppressed).and_yield
expect(model).to receive(:change_column_default)
.with(:users, :new, old_column.default)
expect(model).to receive(:copy_check_constraints)
.with(:users, :old, :new)
model.rename_column_concurrently(:users, :old, :new)
end
end
end
context 'when the table in the other database is write-locked' do
let(:test_table) { '_test_table' }
let(:lock_writes_manager) do
Gitlab::Database::LockWritesManager.new(
table_name: test_table,
connection: model.connection,
database_name: 'main'
)
end
before do
model.connection.execute(<<~SQL)
CREATE TABLE #{test_table} (id integer NOT NULL, value integer NOT NULL DEFAULT 0);
INSERT INTO #{test_table} (id, value)
VALUES (1, 1), (2, 2), (3, 3)
SQL
lock_writes_manager.lock_writes
end
it 'does not raise an error when renaming the column' do
expect do
model.rename_column_concurrently(test_table, :value, :new_value)
end.not_to raise_error
end
end
context 'when the column to be renamed does not exist' do
before do
allow(model).to receive(:columns).and_return([])
end
it 'raises an error with appropriate message' do
expect(model).to receive(:check_trigger_permissions!).with(:users)
error_message = /Could not find column "missing_column" on table "users"/
expect { model.rename_column_concurrently(:users, :missing_column, :new) }.to raise_error(error_message)
end
end
end
end
describe '#undo_rename_column_concurrently' do
it 'reverses the operations of rename_column_concurrently' do
expect(model).to receive(:check_trigger_permissions!).with(:users)
expect(model).to receive(:remove_rename_triggers)
.with(:users, /trigger_.{12}/)
expect(model).to receive(:remove_column).with(:users, :new)
model.undo_rename_column_concurrently(:users, :old, :new)
end
end
describe '#cleanup_concurrent_column_rename' do
it 'cleans up the renaming procedure' do
expect(model).to receive(:check_trigger_permissions!).with(:users)
expect(model).to receive(:remove_rename_triggers)
.with(:users, /trigger_.{12}/)
expect(model).to receive(:remove_column).with(:users, :old)
model.cleanup_concurrent_column_rename(:users, :old, :new)
end
end
describe '#undo_cleanup_concurrent_column_rename' do
context 'in a transaction' do
it 'raises RuntimeError' do
allow(model).to receive(:transaction_open?).and_return(true)
expect { model.undo_cleanup_concurrent_column_rename(:users, :old, :new) }
.to raise_error(RuntimeError)
end
end
context 'outside a transaction' do
let(:new_column) do
double(:column,
type: :integer,
limit: 8,
default: 0,
null: false,
precision: 5,
scale: 1)
end
let(:trigger_name) { model.rename_trigger_name(:users, :old, :new) }
before do
allow(model).to receive(:transaction_open?).and_return(false)
allow(model).to receive(:column_for).and_return(new_column)
end
it 'reverses the operations of cleanup_concurrent_column_rename' do
expect(Gitlab::Database::QueryAnalyzers::GitlabSchemasValidateConnection).to receive(:with_suppressed).and_yield
expect(model).to receive(:check_trigger_permissions!).with(:users)
expect(model).to receive(:install_rename_triggers)
.with(:users, :old, :new)
expect(model).to receive(:add_column)
.with(:users, :old, :integer,
limit: new_column.limit,
precision: new_column.precision,
scale: new_column.scale)
expect(model).to receive(:change_column_default)
.with(:users, :old, new_column.default)
expect(model).to receive(:update_column_in_batches)
expect(model).to receive(:add_not_null_constraint).with(:users, :old)
expect(model).to receive(:copy_indexes).with(:users, :new, :old)
expect(model).to receive(:copy_foreign_keys).with(:users, :new, :old)
expect(model).to receive(:copy_check_constraints).with(:users, :new, :old)
model.undo_cleanup_concurrent_column_rename(:users, :old, :new)
end
it 'passes the batch_column_name' do
expect(model).to receive(:column_exists?).with(:users, :other_batch_column).and_return(true)
expect(model).to receive(:check_trigger_permissions!).and_return(true)
expect(model).to receive(:create_column_from).with(
:users, :new, :old, type: nil, batch_column_name: :other_batch_column
).and_return(true)
expect(model).to receive(:install_rename_triggers).and_return(true)
model.undo_cleanup_concurrent_column_rename(:users, :old, :new, batch_column_name: :other_batch_column)
end
it 'raises an error with invalid batch_column_name' do
expect do
model.undo_cleanup_concurrent_column_rename(:users, :old, :new, batch_column_name: :invalid)
end.to raise_error(RuntimeError, /Column invalid does not exist on users/)
end
context 'when default is false' do
let(:new_column) do
double(:column,
type: :boolean,
limit: nil,
default: false,
null: false,
precision: nil,
scale: nil)
end
it 'copies the default to the old column' do
expect(Gitlab::Database::QueryAnalyzers::GitlabSchemasValidateConnection).to receive(:with_suppressed).and_yield
expect(model).to receive(:change_column_default)
.with(:users, :old, new_column.default)
expect(model).to receive(:copy_check_constraints)
.with(:users, :new, :old)
model.undo_cleanup_concurrent_column_rename(:users, :old, :new)
end
end
end
end
describe '#change_column_type_concurrently' do
it 'changes the column type' do
expect(model).to receive(:rename_column_concurrently)
.with('users', 'username', 'username_for_type_change', type: :text, type_cast_function: nil, batch_column_name: :id)
model.change_column_type_concurrently('users', 'username', :text)
end
it 'passed the batch column name' do
expect(model).to receive(:rename_column_concurrently)
.with('users', 'username', 'username_for_type_change', type: :text, type_cast_function: nil, batch_column_name: :user_id)
model.change_column_type_concurrently('users', 'username', :text, batch_column_name: :user_id)
end
context 'with type cast' do
it 'changes the column type with casting the value to the new type' do
expect(model).to receive(:rename_column_concurrently)
.with('users', 'username', 'username_for_type_change', type: :text, type_cast_function: 'JSON', batch_column_name: :id)
model.change_column_type_concurrently('users', 'username', :text, type_cast_function: 'JSON')
end
end
end
describe '#undo_change_column_type_concurrently' do
it 'reverses the operations of change_column_type_concurrently' do
expect(model).to receive(:check_trigger_permissions!).with(:users)
expect(model).to receive(:remove_rename_triggers)
.with(:users, /trigger_.{12}/)
expect(model).to receive(:remove_column).with(:users, "old_for_type_change")
model.undo_change_column_type_concurrently(:users, :old)
end
end
describe '#cleanup_concurrent_column_type_change' do
it 'cleans up the type changing procedure' do
expect(model).to receive(:cleanup_concurrent_column_rename)
.with('users', 'username', 'username_for_type_change')
expect(model).to receive(:rename_column)
.with('users', 'username_for_type_change', 'username')
model.cleanup_concurrent_column_type_change('users', 'username')
end
end
describe '#undo_cleanup_concurrent_column_type_change' do
context 'in a transaction' do
it 'raises RuntimeError' do
allow(model).to receive(:transaction_open?).and_return(true)
expect { model.undo_cleanup_concurrent_column_type_change(:users, :old, :new) }
.to raise_error(RuntimeError)
end
end
context 'outside a transaction' do
let(:temp_column) { "old_for_type_change" }
let(:temp_undo_cleanup_column) do
identifier = "users_old_for_type_change"
hashed_identifier = Digest::SHA256.hexdigest(identifier).first(10)
"tmp_undo_cleanup_column_#{hashed_identifier}"
end
let(:trigger_name) { model.rename_trigger_name(:users, :old, :old_for_type_change) }
before do
allow(model).to receive(:transaction_open?).and_return(false)
end
it 'reverses the operations of cleanup_concurrent_column_type_change' do
expect(Gitlab::Database::QueryAnalyzers::RestrictAllowedSchemas).to receive(:require_ddl_mode!)
expect(model).to receive(:check_trigger_permissions!).with(:users)
expect(model).to receive(:create_column_from).with(
:users,
:old,
temp_undo_cleanup_column,
type: :string,
batch_column_name: :id,
type_cast_function: nil,
limit: nil
).and_return(true)
expect(model).to receive(:rename_column)
.with(:users, :old, temp_column)
expect(model).to receive(:rename_column)
.with(:users, temp_undo_cleanup_column, :old)
expect(model).to receive(:install_rename_triggers)
.with(:users, :old, 'old_for_type_change')
model.undo_cleanup_concurrent_column_type_change(:users, :old, :string)
end
it 'passes the type_cast_function, batch_column_name and limit' do
expect(Gitlab::Database::QueryAnalyzers::RestrictAllowedSchemas).to receive(:require_ddl_mode!)
expect(model).to receive(:column_exists?).with(:users, :other_batch_column).and_return(true)
expect(model).to receive(:check_trigger_permissions!).with(:users)
expect(model).to receive(:create_column_from).with(
:users,
:old,
temp_undo_cleanup_column,
type: :string,
batch_column_name: :other_batch_column,
type_cast_function: :custom_type_cast_function,
limit: 8
).and_return(true)
expect(model).to receive(:rename_column)
.with(:users, :old, temp_column)
expect(model).to receive(:rename_column)
.with(:users, temp_undo_cleanup_column, :old)
expect(model).to receive(:install_rename_triggers)
.with(:users, :old, 'old_for_type_change')
model.undo_cleanup_concurrent_column_type_change(
:users,
:old,
:string,
type_cast_function: :custom_type_cast_function,
batch_column_name: :other_batch_column,
limit: 8
)
end
it 'raises an error with invalid batch_column_name' do
expect do
model.undo_cleanup_concurrent_column_type_change(:users, :old, :new, batch_column_name: :invalid)
end.to raise_error(RuntimeError, /Column invalid does not exist on users/)
end
end
end
describe '#install_rename_triggers' do
let(:connection) { ActiveRecord::Migration.connection }
it 'installs the triggers' do
copy_trigger = double('copy trigger')
expect(Gitlab::Database::UnidirectionalCopyTrigger).to receive(:on_table)
.with(:users, connection: connection).and_return(copy_trigger)
expect(copy_trigger).to receive(:create).with(:old, :new, trigger_name: 'foo')
model.install_rename_triggers(:users, :old, :new, trigger_name: 'foo')
end
end
describe '#remove_rename_triggers' do
let(:connection) { ActiveRecord::Migration.connection }
it 'removes the function and trigger' do
copy_trigger = double('copy trigger')
expect(Gitlab::Database::UnidirectionalCopyTrigger).to receive(:on_table)
.with('bar', connection: connection).and_return(copy_trigger)
expect(copy_trigger).to receive(:drop).with('foo')
model.remove_rename_triggers('bar', 'foo')
end
end
describe '#rename_trigger_name' do
it 'returns a String' do
expect(model.rename_trigger_name(:users, :foo, :bar))
.to match(/trigger_.{12}/)
end
end
describe '#indexes_for' do
it 'returns the indexes for a column' do
idx1 = double(:idx, columns: %w(project_id))
idx2 = double(:idx, columns: %w(user_id))
allow(model).to receive(:indexes).with('table').and_return([idx1, idx2])
expect(model.indexes_for('table', :user_id)).to eq([idx2])
end
end
describe '#foreign_keys_for' do
it 'returns the foreign keys for a column' do
fk1 = double(:fk, column: 'project_id')
fk2 = double(:fk, column: 'user_id')
allow(model).to receive(:foreign_keys).with('table').and_return([fk1, fk2])
expect(model.foreign_keys_for('table', :user_id)).to eq([fk2])
end
end
describe '#copy_indexes' do
context 'using a regular index using a single column' do
it 'copies the index' do
index = double(:index,
columns: %w(project_id),
name: 'index_on_issues_project_id',
using: nil,
where: nil,
opclasses: {},
unique: false,
lengths: [],
orders: [])
allow(model).to receive(:indexes_for).with(:issues, 'project_id')
.and_return([index])
expect(model).to receive(:add_concurrent_index)
.with(:issues,
%w(gl_project_id),
{
unique: false,
name: 'index_on_issues_gl_project_id',
length: [],
order: []
})
model.copy_indexes(:issues, :project_id, :gl_project_id)
end
end
context 'using a regular index with multiple columns' do
it 'copies the index' do
index = double(:index,
columns: %w(project_id foobar),
name: 'index_on_issues_project_id_foobar',
using: nil,
where: nil,
opclasses: {},
unique: false,
lengths: [],
orders: [])
allow(model).to receive(:indexes_for).with(:issues, 'project_id')
.and_return([index])
expect(model).to receive(:add_concurrent_index)
.with(:issues,
%w(gl_project_id foobar),
{
unique: false,
name: 'index_on_issues_gl_project_id_foobar',
length: [],
order: []
})
model.copy_indexes(:issues, :project_id, :gl_project_id)
end
end
context 'using an index with a WHERE clause' do
it 'copies the index' do
index = double(:index,
columns: %w(project_id),
name: 'index_on_issues_project_id',
using: nil,
where: 'foo',
opclasses: {},
unique: false,
lengths: [],
orders: [])
allow(model).to receive(:indexes_for).with(:issues, 'project_id')
.and_return([index])
expect(model).to receive(:add_concurrent_index)
.with(:issues,
%w(gl_project_id),
{
unique: false,
name: 'index_on_issues_gl_project_id',
length: [],
order: [],
where: 'foo'
})
model.copy_indexes(:issues, :project_id, :gl_project_id)
end
end
context 'using an index with a USING clause' do
it 'copies the index' do
index = double(:index,
columns: %w(project_id),
name: 'index_on_issues_project_id',
where: nil,
using: 'foo',
opclasses: {},
unique: false,
lengths: [],
orders: [])
allow(model).to receive(:indexes_for).with(:issues, 'project_id')
.and_return([index])
expect(model).to receive(:add_concurrent_index)
.with(:issues,
%w(gl_project_id),
{
unique: false,
name: 'index_on_issues_gl_project_id',
length: [],
order: [],
using: 'foo'
})
model.copy_indexes(:issues, :project_id, :gl_project_id)
end
end
context 'using an index with custom operator classes' do
it 'copies the index' do
index = double(:index,
columns: %w(project_id),
name: 'index_on_issues_project_id',
using: nil,
where: nil,
opclasses: { 'project_id' => 'bar' },
unique: false,
lengths: [],
orders: [])
allow(model).to receive(:indexes_for).with(:issues, 'project_id')
.and_return([index])
expect(model).to receive(:add_concurrent_index)
.with(:issues,
%w(gl_project_id),
{
unique: false,
name: 'index_on_issues_gl_project_id',
length: [],
order: [],
opclass: { 'gl_project_id' => 'bar' }
})
model.copy_indexes(:issues, :project_id, :gl_project_id)
end
end
context 'using an index with multiple columns and custom operator classes' do
it 'copies the index' do
index = double(:index,
{
columns: %w(project_id foobar),
name: 'index_on_issues_project_id_foobar',
using: :gin,
where: nil,
opclasses: { 'project_id' => 'bar', 'foobar' => :gin_trgm_ops },
unique: false,
lengths: [],
orders: []
})
allow(model).to receive(:indexes_for).with(:issues, 'project_id')
.and_return([index])
expect(model).to receive(:add_concurrent_index)
.with(:issues,
%w(gl_project_id foobar),
{
unique: false,
name: 'index_on_issues_gl_project_id_foobar',
length: [],
order: [],
opclass: { 'gl_project_id' => 'bar', 'foobar' => :gin_trgm_ops },
using: :gin
})
model.copy_indexes(:issues, :project_id, :gl_project_id)
end
end
context 'using an index with multiple columns and a custom operator class on the non affected column' do
it 'copies the index' do
index = double(:index,
{
columns: %w(project_id foobar),
name: 'index_on_issues_project_id_foobar',
using: :gin,
where: nil,
opclasses: { 'foobar' => :gin_trgm_ops },
unique: false,
lengths: [],
orders: []
})
allow(model).to receive(:indexes_for).with(:issues, 'project_id')
.and_return([index])
expect(model).to receive(:add_concurrent_index)
.with(:issues,
%w(gl_project_id foobar),
{
unique: false,
name: 'index_on_issues_gl_project_id_foobar',
length: [],
order: [],
opclass: { 'foobar' => :gin_trgm_ops },
using: :gin
})
model.copy_indexes(:issues, :project_id, :gl_project_id)
end
end
describe 'using an index of which the name does not contain the source column' do
it 'raises RuntimeError' do
index = double(:index,
columns: %w(project_id),
name: 'index_foobar_index',
using: nil,
where: nil,
opclasses: {},
unique: false,
lengths: [],
orders: [])
allow(model).to receive(:indexes_for).with(:issues, 'project_id')
.and_return([index])
expect { model.copy_indexes(:issues, :project_id, :gl_project_id) }
.to raise_error(RuntimeError)
end
end
end
describe '#copy_foreign_keys' do
it 'copies foreign keys from one column to another' do
fk = double(:fk,
from_table: 'issues',
to_table: 'projects',
on_delete: :cascade)
allow(model).to receive(:foreign_keys_for).with(:issues, :project_id)
.and_return([fk])
expect(model).to receive(:add_concurrent_foreign_key)
.with('issues', 'projects', column: :gl_project_id, on_delete: :cascade)
model.copy_foreign_keys(:issues, :project_id, :gl_project_id)
end
end
describe '#column_for' do
it 'returns a column object for an existing column' do
column = model.column_for(:users, :id)
expect(column.name).to eq('id')
end
it 'raises an error when a column does not exist' do
error_message = /Could not find column "kittens" on table "users"/
expect { model.column_for(:users, :kittens) }.to raise_error(error_message)
end
end
describe '#replace_sql' do
it 'builds the sql with correct functions' do
expect(model.replace_sql(Arel::Table.new(:users)[:first_name], "Alice", "Eve").to_s)
.to include('regexp_replace')
end
describe 'results' do
let!(:user) { create(:user, name: 'Kathy Alice Aliceson') }
it 'replaces the correct part of the string' do
allow(model).to receive(:transaction_open?).and_return(false)
query = model.replace_sql(Arel::Table.new(:users)[:name], 'Alice', 'Eve')
model.update_column_in_batches(:users, :name, query)
expect(user.reload.name).to eq('Kathy Eve Aliceson')
end
end
end
describe 'sidekiq migration helpers', :redis do
let(:worker) do
Class.new do
include Sidekiq::Worker
sidekiq_options queue: 'test'
def self.name
'WorkerClass'
end
end
end
let(:same_queue_different_worker) do
Class.new do
include Sidekiq::Worker
sidekiq_options queue: 'test'
def self.name
'SameQueueDifferentWorkerClass'
end
end
end
let(:unrelated_worker) do
Class.new do
include Sidekiq::Worker
sidekiq_options queue: 'unrelated'
def self.name
'UnrelatedWorkerClass'
end
end
end
before do
stub_const(worker.name, worker)
stub_const(unrelated_worker.name, unrelated_worker)
stub_const(same_queue_different_worker.name, same_queue_different_worker)
end
describe '#sidekiq_remove_jobs', :clean_gitlab_redis_queues do
def clear_queues
Sidekiq::Queue.new('test').clear
Sidekiq::Queue.new('unrelated').clear
Sidekiq::RetrySet.new.clear
Sidekiq::ScheduledSet.new.clear
end
around do |example|
clear_queues
Sidekiq::Testing.disable!(&example)
clear_queues
end
it "removes all related job instances from the job class's queue" do
worker.perform_async
same_queue_different_worker.perform_async
unrelated_worker.perform_async
queue_we_care_about = Sidekiq::Queue.new(worker.queue)
unrelated_queue = Sidekiq::Queue.new(unrelated_worker.queue)
expect(queue_we_care_about.size).to eq(2)
expect(unrelated_queue.size).to eq(1)
model.sidekiq_remove_jobs(job_klass: worker)
expect(queue_we_care_about.size).to eq(1)
expect(queue_we_care_about.map(&:klass)).not_to include(worker.name)
expect(queue_we_care_about.map(&:klass)).to include(
same_queue_different_worker.name
)
expect(unrelated_queue.size).to eq(1)
end
context 'when job instances are in the scheduled set' do
it 'removes all related job instances from the scheduled set' do
worker.perform_in(1.hour)
unrelated_worker.perform_in(1.hour)
scheduled = Sidekiq::ScheduledSet.new
expect(scheduled.size).to eq(2)
expect(scheduled.map(&:klass)).to include(
worker.name,
unrelated_worker.name
)
model.sidekiq_remove_jobs(job_klass: worker)
expect(scheduled.size).to eq(1)
expect(scheduled.map(&:klass)).not_to include(worker.name)
expect(scheduled.map(&:klass)).to include(unrelated_worker.name)
end
end
context 'when job instances are in the retry set' do
include_context 'when handling retried jobs'
it 'removes all related job instances from the retry set' do
retry_in(worker, 1.hour)
retry_in(worker, 2.hours)
retry_in(worker, 3.hours)
retry_in(unrelated_worker, 4.hours)
retries = Sidekiq::RetrySet.new
expect(retries.size).to eq(4)
expect(retries.map(&:klass)).to include(
worker.name,
unrelated_worker.name
)
model.sidekiq_remove_jobs(job_klass: worker)
expect(retries.size).to eq(1)
expect(retries.map(&:klass)).not_to include(worker.name)
expect(retries.map(&:klass)).to include(unrelated_worker.name)
end
end
end
describe '#sidekiq_queue_length' do
context 'when queue is empty' do
it 'returns zero' do
Sidekiq::Testing.disable! do
expect(model.sidekiq_queue_length('test')).to eq 0
end
end
end
context 'when queue contains jobs' do
it 'returns correct size of the queue' do
Sidekiq::Testing.disable! do
worker.perform_async('Something', [1])
worker.perform_async('Something', [2])
expect(model.sidekiq_queue_length('test')).to eq 2
end
end
end
end
describe '#sidekiq_queue_migrate' do
it 'migrates jobs from one sidekiq queue to another' do
Sidekiq::Testing.disable! do
worker.perform_async('Something', [1])
worker.perform_async('Something', [2])
expect(model.sidekiq_queue_length('test')).to eq 2
expect(model.sidekiq_queue_length('new_test')).to eq 0
model.sidekiq_queue_migrate('test', to: 'new_test')
expect(model.sidekiq_queue_length('test')).to eq 0
expect(model.sidekiq_queue_length('new_test')).to eq 2
end
end
end
end
describe '#check_trigger_permissions!' do
it 'does nothing when the user has the correct permissions' do
expect { model.check_trigger_permissions!('users') }
.not_to raise_error
end
it 'raises RuntimeError when the user does not have the correct permissions' do
allow(Gitlab::Database::Grant).to receive(:create_and_execute_trigger?)
.with('kittens')
.and_return(false)
expect { model.check_trigger_permissions!('kittens') }
.to raise_error(RuntimeError, /Your database user is not allowed/)
end
end
describe '#convert_to_bigint_column' do
it 'returns the name of the temporary column used to convert to bigint' do
expect(model.convert_to_bigint_column(:id)).to eq('id_convert_to_bigint')
end
end
describe '#convert_to_type_column' do
it 'returns the name of the temporary column used to convert to bigint' do
expect(model.convert_to_type_column(:id, :int, :bigint)).to eq('id_convert_int_to_bigint')
end
it 'returns the name of the temporary column used to convert to uuid' do
expect(model.convert_to_type_column(:uuid, :string, :uuid)).to eq('uuid_convert_string_to_uuid')
end
end
describe '#create_temporary_columns_and_triggers' do
let(:table) { :test_table }
let(:column) { :id }
let(:mappings) do
{
id: {
from_type: :int,
to_type: :bigint
}
}
end
let(:old_bigint_column_naming) { false }
subject do
model.create_temporary_columns_and_triggers(
table,
mappings,
old_bigint_column_naming: old_bigint_column_naming
)
end
before do
model.create_table table, id: false do |t|
t.integer :id, primary_key: true
t.integer :non_nullable_column, null: false
t.integer :nullable_column
t.timestamps
end
end
context 'when no mappings are provided' do
let(:mappings) { nil }
it 'raises an error' do
expect { subject }.to raise_error("No mappings for column conversion provided")
end
end
context 'when any of the mappings does not have the required keys' do
let(:mappings) do
{
id: {
from_type: :int
}
}
end
it 'raises an error' do
expect { subject }.to raise_error("Some mappings don't have required keys provided")
end
end
context 'when the target table does not exist' do
it 'raises an error' do
expect { model.create_temporary_columns_and_triggers(:non_existent_table, mappings) }.to raise_error("Table non_existent_table does not exist")
end
end
context 'when the column to migrate does not exist' do
let(:missing_column) { :test }
let(:mappings) do
{
missing_column => {
from_type: :int,
to_type: :bigint
}
}
end
it 'raises an error' do
expect { subject }.to raise_error("Column #{missing_column} does not exist on #{table}")
end
end
context 'when old_bigint_column_naming is true' do
let(:old_bigint_column_naming) { true }
it 'calls convert_to_bigint_column' do
expect(model).to receive(:convert_to_bigint_column).with(:id).and_return("id_convert_to_bigint")
subject
end
end
context 'when old_bigint_column_naming is false' do
it 'calls convert_to_type_column' do
expect(model).to receive(:convert_to_type_column).with(:id, :int, :bigint).and_return("id_convert_to_bigint")
subject
end
end
end
describe '#initialize_conversion_of_integer_to_bigint' do
let(:table) { :test_table }
let(:column) { :id }
let(:tmp_column) { model.convert_to_bigint_column(column) }
before do
model.create_table table, id: false do |t|
t.integer :id, primary_key: true
t.integer :non_nullable_column, null: false
t.integer :nullable_column
t.timestamps
end
end
context 'when the target table does not exist' do
it 'raises an error' do
expect { model.initialize_conversion_of_integer_to_bigint(:this_table_is_not_real, column) }
.to raise_error('Table this_table_is_not_real does not exist')
end
end
context 'when the primary key does not exist' do
it 'raises an error' do
expect { model.initialize_conversion_of_integer_to_bigint(table, column, primary_key: :foobar) }
.to raise_error("Column foobar does not exist on #{table}")
end
end
context 'when the column to migrate does not exist' do
it 'raises an error' do
expect { model.initialize_conversion_of_integer_to_bigint(table, :this_column_is_not_real) }
.to raise_error(ArgumentError, "Column this_column_is_not_real does not exist on #{table}")
end
end
context 'when the column to convert is the primary key' do
it 'creates a not-null bigint column and installs triggers' do
expect(model).to receive(:add_column).with(table, tmp_column, :bigint, default: 0, null: false)
expect(model).to receive(:install_rename_triggers).with(table, [column], [tmp_column])
model.initialize_conversion_of_integer_to_bigint(table, column)
end
end
context 'when the column to convert is not the primary key, but non-nullable' do
let(:column) { :non_nullable_column }
it 'creates a not-null bigint column and installs triggers' do
expect(model).to receive(:add_column).with(table, tmp_column, :bigint, default: 0, null: false)
expect(model).to receive(:install_rename_triggers).with(table, [column], [tmp_column])
model.initialize_conversion_of_integer_to_bigint(table, column)
end
end
context 'when the column to convert is not the primary key, but nullable' do
let(:column) { :nullable_column }
it 'creates a nullable bigint column and installs triggers' do
expect(model).to receive(:add_column).with(table, tmp_column, :bigint, default: nil)
expect(model).to receive(:install_rename_triggers).with(table, [column], [tmp_column])
model.initialize_conversion_of_integer_to_bigint(table, column)
end
end
context 'when multiple columns are given' do
it 'creates the correct columns and installs the trigger' do
columns_to_convert = %i[id non_nullable_column nullable_column]
temporary_columns = columns_to_convert.map { |column| model.convert_to_bigint_column(column) }
expect(model).to receive(:add_column).with(table, temporary_columns[0], :bigint, default: 0, null: false)
expect(model).to receive(:add_column).with(table, temporary_columns[1], :bigint, default: 0, null: false)
expect(model).to receive(:add_column).with(table, temporary_columns[2], :bigint, default: nil)
expect(model).to receive(:install_rename_triggers).with(table, columns_to_convert, temporary_columns)
model.initialize_conversion_of_integer_to_bigint(table, columns_to_convert)
end
end
end
describe '#restore_conversion_of_integer_to_bigint' do
let(:table) { :test_table }
let(:column) { :id }
let(:tmp_column) { model.convert_to_bigint_column(column) }
before do
model.create_table table, id: false do |t|
t.bigint :id, primary_key: true
t.bigint :build_id, null: false
t.timestamps
end
end
context 'when the target table does not exist' do
it 'raises an error' do
expect { model.restore_conversion_of_integer_to_bigint(:this_table_is_not_real, column) }
.to raise_error('Table this_table_is_not_real does not exist')
end
end
context 'when the column to migrate does not exist' do
it 'raises an error' do
expect { model.restore_conversion_of_integer_to_bigint(table, :this_column_is_not_real) }
.to raise_error(ArgumentError, "Column this_column_is_not_real does not exist on #{table}")
end
end
context 'when a single column is given' do
let(:column_to_convert) { 'id' }
let(:temporary_column) { model.convert_to_bigint_column(column_to_convert) }
it 'creates the correct columns and installs the trigger' do
expect(model).to receive(:add_column).with(table, temporary_column, :int, default: 0, null: false)
expect(model).to receive(:install_rename_triggers).with(table, [column_to_convert], [temporary_column])
model.restore_conversion_of_integer_to_bigint(table, column_to_convert)
end
end
context 'when multiple columns are given' do
let(:columns_to_convert) { %i[id build_id] }
let(:temporary_columns) { columns_to_convert.map { |column| model.convert_to_bigint_column(column) } }
it 'creates the correct columns and installs the trigger' do
expect(model).to receive(:add_column).with(table, temporary_columns[0], :int, default: 0, null: false)
expect(model).to receive(:add_column).with(table, temporary_columns[1], :int, default: 0, null: false)
expect(model).to receive(:install_rename_triggers).with(table, columns_to_convert, temporary_columns)
model.restore_conversion_of_integer_to_bigint(table, columns_to_convert)
end
end
end
describe '#revert_initialize_conversion_of_integer_to_bigint' do
let(:table) { :test_table }
before do
model.create_table table, id: false do |t|
t.integer :id, primary_key: true
t.integer :other_id
end
model.initialize_conversion_of_integer_to_bigint(table, columns)
end
context 'when single column is given' do
let(:columns) { :id }
it 'removes column, trigger, and function' do
temporary_column = model.convert_to_bigint_column(columns)
trigger_name = model.rename_trigger_name(table, :id, temporary_column)
model.revert_initialize_conversion_of_integer_to_bigint(table, columns)
expect(model.column_exists?(table, temporary_column)).to eq(false)
expect_trigger_not_to_exist(table, trigger_name)
expect_function_not_to_exist(trigger_name)
end
end
context 'when multiple columns are given' do
let(:columns) { [:id, :other_id] }
it 'removes column, trigger, and function' do
temporary_columns = columns.map { |column| model.convert_to_bigint_column(column) }
trigger_name = model.rename_trigger_name(table, columns, temporary_columns)
model.revert_initialize_conversion_of_integer_to_bigint(table, columns)
temporary_columns.each do |column|
expect(model.column_exists?(table, column)).to eq(false)
end
expect_trigger_not_to_exist(table, trigger_name)
expect_function_not_to_exist(trigger_name)
end
end
end
describe '#backfill_conversion_of_integer_to_bigint' do
let(:table) { :_test_backfill_table }
let(:column) { :id }
let(:tmp_column) { model.convert_to_bigint_column(column) }
before do
model.create_table table, id: false do |t|
t.integer :id, primary_key: true
t.text :message, null: false
t.integer :other_id
t.timestamps
end
allow(model).to receive(:transaction_open?).and_return(false)
end
context 'when the target table does not exist' do
it 'raises an error' do
expect { model.backfill_conversion_of_integer_to_bigint(:this_table_is_not_real, column) }
.to raise_error('Table this_table_is_not_real does not exist')
end
end
context 'when the primary key does not exist' do
it 'raises an error' do
expect { model.backfill_conversion_of_integer_to_bigint(table, column, primary_key: :foobar) }
.to raise_error("Column foobar does not exist on #{table}")
end
end
context 'when the column to convert does not exist' do
let(:column) { :foobar }
it 'raises an error' do
expect { model.backfill_conversion_of_integer_to_bigint(table, column) }
.to raise_error(ArgumentError, "Column #{column} does not exist on #{table}")
end
end
context 'when the temporary column does not exist' do
it 'raises an error' do
expect { model.backfill_conversion_of_integer_to_bigint(table, column) }
.to raise_error(ArgumentError, "Column #{tmp_column} does not exist on #{table}")
end
end
context 'when the conversion is properly initialized' do
let(:model_class) do
Class.new(ActiveRecord::Base) do
self.table_name = :_test_backfill_table
end
end
let(:migration_relation) { Gitlab::Database::BackgroundMigration::BatchedMigration.with_status(:active) }
before do
model.initialize_conversion_of_integer_to_bigint(table, columns)
model_class.create!(message: 'hello')
model_class.create!(message: 'so long')
end
context 'when a single column is being converted' do
let(:columns) { column }
it 'creates the batched migration tracking record' do
last_record = model_class.create!(message: 'goodbye')
expect do
model.backfill_conversion_of_integer_to_bigint(table, column, batch_size: 2, sub_batch_size: 1)
end.to change { migration_relation.count }.by(1)
expect(migration_relation.last).to have_attributes(
job_class_name: 'CopyColumnUsingBackgroundMigrationJob',
table_name: table.to_s,
column_name: column.to_s,
min_value: 1,
max_value: last_record.id,
interval: 120,
batch_size: 2,
sub_batch_size: 1,
job_arguments: [[column.to_s], [model.convert_to_bigint_column(column)]]
)
end
end
context 'when multiple columns are being converted' do
let(:other_column) { :other_id }
let(:other_tmp_column) { model.convert_to_bigint_column(other_column) }
let(:columns) { [column, other_column] }
it 'creates the batched migration tracking record' do
last_record = model_class.create!(message: 'goodbye', other_id: 50)
expect do
model.backfill_conversion_of_integer_to_bigint(table, columns, batch_size: 2, sub_batch_size: 1)
end.to change { migration_relation.count }.by(1)
expect(migration_relation.last).to have_attributes(
job_class_name: 'CopyColumnUsingBackgroundMigrationJob',
table_name: table.to_s,
column_name: column.to_s,
min_value: 1,
max_value: last_record.id,
interval: 120,
batch_size: 2,
sub_batch_size: 1,
job_arguments: [[column.to_s, other_column.to_s], [tmp_column, other_tmp_column]]
)
end
end
end
end
describe '#revert_backfill_conversion_of_integer_to_bigint' do
let(:table) { :_test_backfill_table }
let(:primary_key) { :id }
before do
model.create_table table, id: false do |t|
t.integer primary_key, primary_key: true
t.text :message, null: false
t.integer :other_id
t.timestamps
end
allow(model).to receive(:transaction_open?).and_return(false)
model.initialize_conversion_of_integer_to_bigint(table, columns, primary_key: primary_key)
model.backfill_conversion_of_integer_to_bigint(table, columns, primary_key: primary_key)
end
context 'when a single column is being converted' do
let(:columns) { :id }
it 'deletes the batched migration tracking record' do
expect do
model.revert_backfill_conversion_of_integer_to_bigint(table, columns)
end.to change { Gitlab::Database::BackgroundMigration::BatchedMigration.count }.by(-1)
end
end
context 'when a multiple columns are being converted' do
let(:columns) { [:id, :other_id] }
it 'deletes the batched migration tracking record' do
expect do
model.revert_backfill_conversion_of_integer_to_bigint(table, columns)
end.to change { Gitlab::Database::BackgroundMigration::BatchedMigration.count }.by(-1)
end
end
context 'when primary key column has custom name' do
let(:primary_key) { :other_pk }
let(:columns) { :other_id }
it 'deletes the batched migration tracking record' do
expect do
model.revert_backfill_conversion_of_integer_to_bigint(table, columns, primary_key: primary_key)
end.to change { Gitlab::Database::BackgroundMigration::BatchedMigration.count }.by(-1)
end
end
end
describe '#index_exists_by_name?' do
it 'returns true if an index exists' do
ActiveRecord::Migration.connection.execute(
'CREATE INDEX test_index_for_index_exists ON projects (path);'
)
expect(model.index_exists_by_name?(:projects, 'test_index_for_index_exists'))
.to be_truthy
end
it 'returns false if the index does not exist' do
expect(model.index_exists_by_name?(:projects, 'this_does_not_exist'))
.to be_falsy
end
context 'when an index with a function exists' do
before do
ActiveRecord::Migration.connection.execute(
'CREATE INDEX test_index ON projects (LOWER(path));'
)
end
it 'returns true if an index exists' do
expect(model.index_exists_by_name?(:projects, 'test_index'))
.to be_truthy
end
end
context 'when an index exists for a table with the same name in another schema' do
before do
ActiveRecord::Migration.connection.execute(
'CREATE SCHEMA new_test_schema'
)
ActiveRecord::Migration.connection.execute(
'CREATE TABLE new_test_schema.projects (id integer, name character varying)'
)
ActiveRecord::Migration.connection.execute(
'CREATE INDEX test_index_on_name ON new_test_schema.projects (LOWER(name));'
)
end
it 'returns false if the index does not exist in the current schema' do
expect(model.index_exists_by_name?(:projects, 'test_index_on_name'))
.to be_falsy
end
end
end
describe '#create_or_update_plan_limit' do
before do
stub_const('Plan', Class.new(ActiveRecord::Base))
stub_const('PlanLimits', Class.new(ActiveRecord::Base))
Plan.class_eval do
self.table_name = 'plans'
end
PlanLimits.class_eval do
self.table_name = 'plan_limits'
end
end
it 'properly escapes names' do
expect(model).to receive(:execute).with <<~SQL
INSERT INTO plan_limits (plan_id, "project_hooks")
SELECT id, '10' FROM plans WHERE name = 'free' LIMIT 1
ON CONFLICT (plan_id) DO UPDATE SET "project_hooks" = EXCLUDED."project_hooks";
SQL
model.create_or_update_plan_limit('project_hooks', 'free', 10)
end
context 'when plan does not exist' do
it 'does not create any plan limits' do
expect { model.create_or_update_plan_limit('project_hooks', 'plan_name', 10) }
.not_to change { PlanLimits.count }
end
end
context 'when plan does exist' do
let!(:plan) { Plan.create!(name: 'plan_name') }
context 'when limit does not exist' do
it 'inserts a new plan limits' do
expect { model.create_or_update_plan_limit('project_hooks', 'plan_name', 10) }
.to change { PlanLimits.count }.by(1)
expect(PlanLimits.pluck(:project_hooks)).to contain_exactly(10)
end
end
context 'when limit does exist' do
let!(:plan_limit) { PlanLimits.create!(plan_id: plan.id) }
it 'updates an existing plan limits' do
expect { model.create_or_update_plan_limit('project_hooks', 'plan_name', 999) }
.not_to change { PlanLimits.count }
expect(plan_limit.reload.project_hooks).to eq(999)
end
end
end
end
describe '#backfill_iids' do
include MigrationsHelpers
let_it_be(:issue_base_type_enum) { 0 }
let_it_be(:issue_type) { table(:work_item_types).find_by(base_type: issue_base_type_enum) }
let(:issue_class) do
Class.new(ActiveRecord::Base) do
include AtomicInternalId
self.table_name = 'issues'
self.inheritance_column = :_type_disabled
belongs_to :project, class_name: "::Project", inverse_of: nil
has_internal_id :iid,
scope: :project,
init: ->(s, _scope) { s&.project&.issues&.maximum(:iid) },
presence: false
before_validation -> { self.work_item_type_id = ::WorkItems::Type.default_issue_type.id }
end
end
let(:namespaces) { table(:namespaces) }
let(:projects) { table(:projects) }
let(:issues) { table(:issues) }
def setup
namespace = namespaces.create!(name: 'foo', path: 'foo', type: Namespaces::UserNamespace.sti_name)
project_namespace = namespaces.create!(name: 'project-foo', path: 'project-foo', type: 'Project', parent_id: namespace.id, visibility_level: 20)
projects.create!(namespace_id: namespace.id, project_namespace_id: project_namespace.id)
end
it 'generates iids properly for models created after the migration' do
project = setup
model.backfill_iids('issues')
issue = issue_class.create!(project_id: project.id)
expect(issue.iid).to eq(1)
end
it 'generates iids properly for models created after the migration when iids are backfilled' do
project = setup
issue_a = issues.create!(project_id: project.id, work_item_type_id: issue_type.id)
model.backfill_iids('issues')
issue_b = issue_class.create!(project_id: project.id)
expect(issue_a.reload.iid).to eq(1)
expect(issue_b.iid).to eq(2)
end
it 'generates iids properly for models created after the migration across multiple projects' do
project_a = setup
project_b = setup
issues.create!(project_id: project_a.id, work_item_type_id: issue_type.id)
issues.create!(project_id: project_b.id, work_item_type_id: issue_type.id)
issues.create!(project_id: project_b.id, work_item_type_id: issue_type.id)
model.backfill_iids('issues')
issue_a = issue_class.create!(project_id: project_a.id, work_item_type_id: issue_type.id)
issue_b = issue_class.create!(project_id: project_b.id, work_item_type_id: issue_type.id)
expect(issue_a.iid).to eq(2)
expect(issue_b.iid).to eq(3)
end
context 'when the first model is created for a project after the migration' do
it 'generates an iid' do
project_a = setup
project_b = setup
issue_a = issues.create!(project_id: project_a.id, work_item_type_id: issue_type.id)
model.backfill_iids('issues')
issue_b = issue_class.create!(project_id: project_b.id)
expect(issue_a.reload.iid).to eq(1)
expect(issue_b.reload.iid).to eq(1)
end
end
context 'when a row already has an iid set in the database' do
it 'backfills iids' do
project = setup
issue_a = issues.create!(project_id: project.id, work_item_type_id: issue_type.id, iid: 1)
issue_b = issues.create!(project_id: project.id, work_item_type_id: issue_type.id, iid: 2)
model.backfill_iids('issues')
expect(issue_a.reload.iid).to eq(1)
expect(issue_b.reload.iid).to eq(2)
end
it 'backfills for multiple projects' do
project_a = setup
project_b = setup
issue_a = issues.create!(project_id: project_a.id, work_item_type_id: issue_type.id, iid: 1)
issue_b = issues.create!(project_id: project_b.id, work_item_type_id: issue_type.id, iid: 1)
issue_c = issues.create!(project_id: project_a.id, work_item_type_id: issue_type.id, iid: 2)
model.backfill_iids('issues')
expect(issue_a.reload.iid).to eq(1)
expect(issue_b.reload.iid).to eq(1)
expect(issue_c.reload.iid).to eq(2)
end
end
end
describe '#create_extension' do
subject { model.create_extension(extension) }
let(:extension) { :btree_gist }
it 'executes CREATE EXTENSION statement' do
expect(model).to receive(:execute).with(/CREATE EXTENSION IF NOT EXISTS #{extension}/)
subject
end
context 'without proper permissions' do
before do
allow(model).to receive(:execute)
.with(/CREATE EXTENSION IF NOT EXISTS #{extension}/)
.and_raise(ActiveRecord::StatementInvalid, 'InsufficientPrivilege: permission denied')
end
it 'raises an exception and prints an error message' do
expect { subject }
.to output(/user is not allowed/).to_stderr
.and raise_error(ActiveRecord::StatementInvalid, /InsufficientPrivilege/)
end
end
end
describe '#drop_extension' do
subject { model.drop_extension(extension) }
let(:extension) { 'btree_gist' }
it 'executes CREATE EXTENSION statement' do
expect(model).to receive(:execute).with(/DROP EXTENSION IF EXISTS #{extension}/)
subject
end
context 'without proper permissions' do
before do
allow(model).to receive(:execute)
.with(/DROP EXTENSION IF EXISTS #{extension}/)
.and_raise(ActiveRecord::StatementInvalid, 'InsufficientPrivilege: permission denied')
end
it 'raises an exception and prints an error message' do
expect { subject }
.to output(/user is not allowed/).to_stderr
.and raise_error(ActiveRecord::StatementInvalid, /InsufficientPrivilege/)
end
end
end
describe '#add_primary_key_using_index' do
it "executes the statement to add the primary key" do
expect(model).to receive(:execute).with /ALTER TABLE "test_table" ADD CONSTRAINT "old_name" PRIMARY KEY USING INDEX "new_name"/
model.add_primary_key_using_index(:test_table, :old_name, :new_name)
end
end
context 'when changing the primary key of a given table' do
before do
model.create_table(:test_table, primary_key: :id) do |t|
t.integer :partition_number, default: 1
end
model.add_index(:test_table, :id, unique: true, name: :old_index_name)
model.add_index(:test_table, [:id, :partition_number], unique: true, name: :new_index_name)
end
describe '#swap_primary_key' do
it 'executes statements to swap primary key', :aggregate_failures do
expect(model).to receive(:with_lock_retries).with(raise_on_exhaustion: true).ordered.and_yield
expect(model).to receive(:execute).with(/ALTER TABLE "test_table" DROP CONSTRAINT "test_table_pkey" CASCADE/).and_call_original
expect(model).to receive(:execute).with(/ALTER TABLE "test_table" ADD CONSTRAINT "test_table_pkey" PRIMARY KEY USING INDEX "new_index_name"/).and_call_original
model.swap_primary_key(:test_table, :test_table_pkey, :new_index_name)
end
context 'when new index does not exist' do
before do
model.remove_index(:test_table, column: [:id, :partition_number])
end
it 'raises ActiveRecord::StatementInvalid' do
expect do
model.swap_primary_key(:test_table, :test_table_pkey, :new_index_name)
end.to raise_error(ActiveRecord::StatementInvalid)
end
end
end
describe '#unswap_primary_key' do
it 'executes statements to unswap primary key' do
expect(model).to receive(:with_lock_retries).with(raise_on_exhaustion: true).ordered.and_yield
expect(model).to receive(:execute).with(/ALTER TABLE "test_table" DROP CONSTRAINT "test_table_pkey" CASCADE/).ordered.and_call_original
expect(model).to receive(:execute).with(/ALTER TABLE "test_table" ADD CONSTRAINT "test_table_pkey" PRIMARY KEY USING INDEX "old_index_name"/).ordered.and_call_original
model.unswap_primary_key(:test_table, :test_table_pkey, :old_index_name)
end
end
end
describe '#drop_sequence' do
it "executes the statement to drop the sequence" do
expect(model).to receive(:execute).with /ALTER TABLE "test_table" ALTER COLUMN "test_column" DROP DEFAULT;\nDROP SEQUENCE IF EXISTS "test_table_id_seq"/
model.drop_sequence(:test_table, :test_column, :test_table_id_seq)
end
end
describe '#add_sequence' do
it "executes the statement to add the sequence" do
expect(model).to receive(:execute).with "CREATE SEQUENCE \"test_table_id_seq\" START 1;\nALTER TABLE \"test_table\" ALTER COLUMN \"test_column\" SET DEFAULT nextval(\'test_table_id_seq\')\n"
model.add_sequence(:test_table, :test_column, :test_table_id_seq, 1)
end
end
end