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rails--rails/activerecord/test/cases/migration_test.rb
Hartley McGuire 43f756778f Move comment after newline in installed migrations
When an engine's migration is installed in a rails application, a
comment is inserted after any magic comments indicating the migration's
source. However, the current implementation does not take into
account whether there is an empty line after magic comments, and the
generated migration will not pass rubocop's
Layout/EmptyLineAfterMagicComment even if the engine's migration did.
This commit changes the implementation to insert the new comment after
a newline occuring after magic comments, if it exists.

Example Engine Migration:
```ruby
# frozen_string_literal: true
# coding: ISO-8859-15

class CurrenciesHaveSymbols < ActiveRecord::Migration::Current
end
```

Before change:
```ruby
# frozen_string_literal: true
# coding: ISO-8859-15
# This migration comes from bukkits (originally 1)

class CurrenciesHaveSymbols < ActiveRecord::Migration::Current
end
```

After change:
```ruby
# frozen_string_literal: true
# coding: ISO-8859-15

# This migration comes from bukkits (originally 1)
class CurrenciesHaveSymbols < ActiveRecord::Migration::Current
end
```
2021-08-04 00:52:53 -04:00

1621 lines
55 KiB
Ruby

# frozen_string_literal: true
require "cases/helper"
require "cases/migration/helper"
require "bigdecimal/util"
require "concurrent/atomic/count_down_latch"
require "models/person"
require "models/topic"
require "models/developer"
require "models/computer"
require MIGRATIONS_ROOT + "/valid/2_we_need_reminders"
require MIGRATIONS_ROOT + "/rename/1_we_need_things"
require MIGRATIONS_ROOT + "/rename/2_rename_things"
require MIGRATIONS_ROOT + "/decimal/1_give_me_big_numbers"
class ValidPeopleHaveLastNames < ActiveRecord::Migration::Current
def change
drop_table :people
end
end
class BigNumber < ActiveRecord::Base
unless current_adapter?(:PostgreSQLAdapter, :SQLite3Adapter)
attribute :value_of_e, :integer
end
attribute :my_house_population, :integer
end
class Reminder < ActiveRecord::Base; end
class Thing < ActiveRecord::Base; end
class MigrationTest < ActiveRecord::TestCase
self.use_transactional_tests = false
fixtures :people
def setup
super
%w(reminders people_reminders prefix_reminders_suffix p_things_s).each do |table|
Reminder.connection.drop_table(table) rescue nil
end
Reminder.reset_column_information
@verbose_was, ActiveRecord::Migration.verbose = ActiveRecord::Migration.verbose, false
@schema_migration = ActiveRecord::Base.connection.schema_migration
ActiveRecord::Base.connection.schema_cache.clear!
end
teardown do
ActiveRecord::Base.table_name_prefix = ""
ActiveRecord::Base.table_name_suffix = ""
ActiveRecord::SchemaMigration.create_table
ActiveRecord::SchemaMigration.delete_all
%w(things awesome_things prefix_things_suffix p_awesome_things_s).each do |table|
Thing.connection.drop_table(table) rescue nil
end
Thing.reset_column_information
%w(reminders people_reminders prefix_reminders_suffix).each do |table|
Reminder.connection.drop_table(table) rescue nil
end
Reminder.reset_table_name
Reminder.reset_column_information
%w(last_name key bio age height wealth birthday favorite_day
moment_of_truth male administrator funny).each do |column|
Person.connection.remove_column("people", column) rescue nil
end
Person.connection.remove_column("people", "first_name") rescue nil
Person.connection.remove_column("people", "middle_name") rescue nil
Person.connection.add_column("people", "first_name", :string)
Person.reset_column_information
ActiveRecord::Migration.verbose = @verbose_was
end
def test_migration_context_with_default_schema_migration
migrations_path = MIGRATIONS_ROOT + "/valid"
migrator = ActiveRecord::MigrationContext.new(migrations_path)
migrator.up
assert_equal 3, migrator.current_version
assert_equal false, migrator.needs_migration?
migrator.down
assert_equal 0, migrator.current_version
assert_equal true, migrator.needs_migration?
ActiveRecord::SchemaMigration.create!(version: 3)
assert_equal true, migrator.needs_migration?
end
def test_migration_version_matches_component_version
assert_equal ActiveRecord::VERSION::STRING.to_f, ActiveRecord::Migration.current_version
end
def test_migrator_versions
migrations_path = MIGRATIONS_ROOT + "/valid"
migrator = ActiveRecord::MigrationContext.new(migrations_path, @schema_migration)
migrator.up
assert_equal 3, migrator.current_version
assert_equal false, migrator.needs_migration?
migrator.down
assert_equal 0, migrator.current_version
assert_equal true, migrator.needs_migration?
ActiveRecord::SchemaMigration.create!(version: 3)
assert_equal true, migrator.needs_migration?
end
def test_name_collision_across_dbs
migrations_path = MIGRATIONS_ROOT + "/valid"
migrator = ActiveRecord::MigrationContext.new(migrations_path)
migrator.up
assert_column Person, :last_name
end
def test_migration_detection_without_schema_migration_table
ActiveRecord::Base.connection.drop_table "schema_migrations", if_exists: true
migrations_path = MIGRATIONS_ROOT + "/valid"
migrator = ActiveRecord::MigrationContext.new(migrations_path, @schema_migration)
assert_equal true, migrator.needs_migration?
end
def test_any_migrations
migrator = ActiveRecord::MigrationContext.new(MIGRATIONS_ROOT + "/valid", @schema_migration)
assert_predicate migrator.migrations, :any?
migrator_empty = ActiveRecord::MigrationContext.new(MIGRATIONS_ROOT + "/empty", @schema_migration)
assert_not_predicate migrator_empty.migrations, :any?
end
def test_migration_version
migrator = ActiveRecord::MigrationContext.new(MIGRATIONS_ROOT + "/version_check", @schema_migration)
assert_equal 0, migrator.current_version
migrator.up(20131219224947)
assert_equal 20131219224947, migrator.current_version
end
def test_create_table_raises_if_already_exists
connection = Person.connection
connection.create_table :testings, force: true do |t|
t.string :foo
end
assert_raise(ActiveRecord::StatementInvalid) do
connection.create_table :testings do |t|
t.string :foo
end
end
ensure
connection.drop_table :testings, if_exists: true
end
def test_create_table_with_if_not_exists_true
connection = Person.connection
connection.create_table :testings, force: true do |t|
t.string :foo
end
assert_nothing_raised do
connection.create_table :testings, if_not_exists: true do |t|
t.string :foo
end
end
ensure
connection.drop_table :testings, if_exists: true
end
def test_create_table_with_indexes_and_if_not_exists_true
connection = Person.connection
connection.create_table :testings, force: true do |t|
t.references :people
t.string :foo
end
assert_nothing_raised do
connection.create_table :testings, if_not_exists: true do |t|
t.references :people
t.string :foo
end
end
ensure
connection.drop_table :testings, if_exists: true
end
def test_create_table_with_force_true_does_not_drop_nonexisting_table
# using a copy as we need the drop_table method to
# continue to work for the ensure block of the test
temp_conn = Person.connection.dup
assert_not_equal temp_conn, Person.connection
temp_conn.create_table :testings2, force: true do |t|
t.column :foo, :string
end
ensure
Person.connection.drop_table :testings2, if_exists: true
end
def test_remove_column_with_if_not_exists_not_set
migration_a = Class.new(ActiveRecord::Migration::Current) {
def version; 100 end
def migrate(x)
add_column "people", "last_name", :string
end
}.new
migration_b = Class.new(ActiveRecord::Migration::Current) {
def version; 101 end
def migrate(x)
remove_column "people", "last_name"
end
}.new
migration_c = Class.new(ActiveRecord::Migration::Current) {
def version; 102 end
def migrate(x)
remove_column "people", "last_name"
end
}.new
ActiveRecord::Migrator.new(:up, [migration_a], @schema_migration, 100).migrate
assert_column Person, :last_name, "migration_a should have added the last_name column on people"
ActiveRecord::Migrator.new(:up, [migration_b], @schema_migration, 101).migrate
assert_no_column Person, :last_name, "migration_b should have dropped the last_name column on people"
migrator = ActiveRecord::Migrator.new(:up, [migration_c], @schema_migration, 102)
if current_adapter?(:SQLite3Adapter)
assert_nothing_raised do
migrator.migrate
end
else
error = assert_raises do
migrator.migrate
end
if current_adapter?(:Mysql2Adapter)
if ActiveRecord::Base.connection.mariadb?
assert_match(/Can't DROP COLUMN `last_name`; check that it exists/, error.message)
else
assert_match(/check that column\/key exists/, error.message)
end
elsif current_adapter?(:PostgreSQLAdapter)
assert_match(/column "last_name" of relation "people" does not exist/, error.message)
end
end
ensure
Person.reset_column_information
end
def test_remove_column_with_if_exists_set
migration_a = Class.new(ActiveRecord::Migration::Current) {
def version; 100 end
def migrate(x)
add_column "people", "last_name", :string
end
}.new
migration_b = Class.new(ActiveRecord::Migration::Current) {
def version; 101 end
def migrate(x)
remove_column "people", "last_name"
end
}.new
migration_c = Class.new(ActiveRecord::Migration::Current) {
def version; 102 end
def migrate(x)
remove_column "people", "last_name", if_exists: true
end
}.new
ActiveRecord::Migrator.new(:up, [migration_a], @schema_migration, 100).migrate
assert_column Person, :last_name, "migration_a should have added the last_name column on people"
ActiveRecord::Migrator.new(:up, [migration_b], @schema_migration, 101).migrate
assert_no_column Person, :last_name, "migration_b should have dropped the last_name column on people"
migrator = ActiveRecord::Migrator.new(:up, [migration_c], @schema_migration, 102)
assert_nothing_raised do
migrator.migrate
end
ensure
Person.reset_column_information
end
def test_add_column_with_if_not_exists_not_set
migration_a = Class.new(ActiveRecord::Migration::Current) {
def version; 100 end
def migrate(x)
add_column "people", "last_name", :string
end
}.new
migration_b = Class.new(ActiveRecord::Migration::Current) {
def version; 101 end
def migrate(x)
add_column "people", "last_name", :string
end
}.new
ActiveRecord::Migrator.new(:up, [migration_a], @schema_migration, 100).migrate
assert_column Person, :last_name, "migration_a should have created the last_name column on people"
assert_raises do
ActiveRecord::Migrator.new(:up, [migration_b], @schema_migration, 101).migrate
end
ensure
Person.reset_column_information
if Person.column_names.include?("last_name")
Person.connection.remove_column("people", "last_name")
end
end
def test_add_column_with_if_not_exists_set_to_true
migration_a = Class.new(ActiveRecord::Migration::Current) {
def version; 100 end
def migrate(x)
add_column "people", "last_name", :string
end
}.new
migration_b = Class.new(ActiveRecord::Migration::Current) {
def version; 101 end
def migrate(x)
add_column "people", "last_name", :string, if_not_exists: true
end
}.new
ActiveRecord::Migrator.new(:up, [migration_a], @schema_migration, 100).migrate
assert_column Person, :last_name, "migration_a should have created the last_name column on people"
assert_nothing_raised do
ActiveRecord::Migrator.new(:up, [migration_b], @schema_migration, 101).migrate
end
ensure
Person.reset_column_information
if Person.column_names.include?("last_name")
Person.connection.remove_column("people", "last_name")
end
end
def test_add_column_with_casted_type_if_not_exists_set_to_true
migration_a = Class.new(ActiveRecord::Migration::Current) {
def version; 100 end
def migrate(x)
type = current_adapter?(:PostgreSQLAdapter) ? :char : :blob
add_column "people", "last_name", type
end
}.new
migration_b = Class.new(ActiveRecord::Migration::Current) {
def version; 101 end
def migrate(x)
type = current_adapter?(:PostgreSQLAdapter) ? :char : :blob
add_column "people", "last_name", type, if_not_exists: true
end
}.new
ActiveRecord::Migrator.new(:up, [migration_a], @schema_migration, 100).migrate
assert_column Person, :last_name, "migration_a should have created the last_name column on people"
assert_nothing_raised do
ActiveRecord::Migrator.new(:up, [migration_b], @schema_migration, 101).migrate
end
ensure
Person.reset_column_information
if Person.column_names.include?("last_name")
Person.connection.remove_column("people", "last_name")
end
end
def test_add_column_with_if_not_exists_set_to_true_does_not_raise_if_type_is_different
migration_a = Class.new(ActiveRecord::Migration::Current) {
def version; 100 end
def migrate(x)
add_column "people", "last_name", :string
end
}.new
migration_b = Class.new(ActiveRecord::Migration::Current) {
def version; 101 end
def migrate(x)
add_column "people", "last_name", :boolean, if_not_exists: true
end
}.new
ActiveRecord::Migrator.new(:up, [migration_a], @schema_migration, 100).migrate
assert_column Person, :last_name, "migration_a should have created the last_name column on people"
assert_nothing_raised do
ActiveRecord::Migrator.new(:up, [migration_b], @schema_migration, 101).migrate
end
ensure
Person.reset_column_information
if Person.column_names.include?("last_name")
Person.connection.remove_column("people", "last_name")
end
end
def test_migration_instance_has_connection
migration = Class.new(ActiveRecord::Migration::Current).new
assert_equal ActiveRecord::Base.connection, migration.connection
end
def test_method_missing_delegates_to_connection
migration = Class.new(ActiveRecord::Migration::Current) {
def connection
Class.new {
def create_table; "hi mom!"; end
}.new
end
}.new
assert_equal "hi mom!", migration.method_missing(:create_table)
end
def test_add_table_with_decimals
Person.connection.drop_table :big_numbers rescue nil
assert_not_predicate BigNumber, :table_exists?
GiveMeBigNumbers.up
assert_predicate BigNumber, :table_exists?
BigNumber.reset_column_information
assert BigNumber.create(
bank_balance: 1586.43,
big_bank_balance: BigDecimal("1000234000567.95"),
world_population: 2**62,
my_house_population: 3,
value_of_e: BigDecimal("2.7182818284590452353602875")
)
b = BigNumber.first
assert_not_nil b
assert_not_nil b.bank_balance
assert_not_nil b.big_bank_balance
assert_not_nil b.world_population
assert_not_nil b.my_house_population
assert_not_nil b.value_of_e
assert_kind_of Integer, b.world_population
assert_equal 2**62, b.world_population
assert_kind_of Integer, b.my_house_population
assert_equal 3, b.my_house_population
assert_kind_of BigDecimal, b.bank_balance
assert_equal BigDecimal("1586.43"), b.bank_balance
assert_kind_of BigDecimal, b.big_bank_balance
assert_equal BigDecimal("1000234000567.95"), b.big_bank_balance
# This one is fun. The 'value_of_e' field is defined as 'DECIMAL' with
# precision/scale explicitly left out. By the SQL standard, numbers
# assigned to this field should be truncated but that's seldom respected.
if current_adapter?(:PostgreSQLAdapter)
# - PostgreSQL changes the SQL spec on columns declared simply as
# "decimal" to something more useful: instead of being given a scale
# of 0, they take on the compile-time limit for precision and scale,
# so the following should succeed unless you have used really wacky
# compilation options
assert_kind_of BigDecimal, b.value_of_e
assert_equal BigDecimal("2.7182818284590452353602875"), b.value_of_e
elsif current_adapter?(:SQLite3Adapter)
# - SQLite3 stores a float, in violation of SQL
assert_kind_of BigDecimal, b.value_of_e
assert_in_delta BigDecimal("2.71828182845905"), b.value_of_e, 0.00000000000001
else
# - SQL standard is an integer
assert_kind_of Integer, b.value_of_e
assert_equal 2, b.value_of_e
end
GiveMeBigNumbers.down
assert_raise(ActiveRecord::StatementInvalid) { BigNumber.first }
end
def test_filtering_migrations
assert_no_column Person, :last_name
assert_not_predicate Reminder, :table_exists?
name_filter = lambda { |migration| migration.name == "ValidPeopleHaveLastNames" }
migrator = ActiveRecord::MigrationContext.new(MIGRATIONS_ROOT + "/valid", @schema_migration)
migrator.up(&name_filter)
assert_column Person, :last_name
assert_raise(ActiveRecord::StatementInvalid) { Reminder.first }
migrator.down(&name_filter)
assert_no_column Person, :last_name
assert_raise(ActiveRecord::StatementInvalid) { Reminder.first }
end
class MockMigration < ActiveRecord::Migration::Current
attr_reader :went_up, :went_down
def initialize
@went_up = false
@went_down = false
end
def up
@went_up = true
super
end
def down
@went_down = true
super
end
end
def test_instance_based_migration_up
migration = MockMigration.new
assert_not migration.went_up, "have not gone up"
assert_not migration.went_down, "have not gone down"
migration.migrate :up
assert migration.went_up, "have gone up"
assert_not migration.went_down, "have not gone down"
end
def test_instance_based_migration_down
migration = MockMigration.new
assert_not migration.went_up, "have not gone up"
assert_not migration.went_down, "have not gone down"
migration.migrate :down
assert_not migration.went_up, "have gone up"
assert migration.went_down, "have not gone down"
end
if ActiveRecord::Base.connection.supports_ddl_transactions?
def test_migrator_one_up_with_exception_and_rollback
assert_no_column Person, :last_name
migration = Class.new(ActiveRecord::Migration::Current) {
def version; 100 end
def migrate(x)
add_column "people", "last_name", :string
raise "Something broke"
end
}.new
migrator = ActiveRecord::Migrator.new(:up, [migration], @schema_migration, 100)
e = assert_raise(StandardError) { migrator.migrate }
assert_equal "An error has occurred, this and all later migrations canceled:\n\nSomething broke", e.message
assert_no_column Person, :last_name,
"On error, the Migrator should revert schema changes but it did not."
end
def test_migrator_one_up_with_exception_and_rollback_using_run
assert_no_column Person, :last_name
migration = Class.new(ActiveRecord::Migration::Current) {
def version; 100 end
def migrate(x)
add_column "people", "last_name", :string
raise "Something broke"
end
}.new
migrator = ActiveRecord::Migrator.new(:up, [migration], @schema_migration, 100)
e = assert_raise(StandardError) { migrator.run }
assert_equal "An error has occurred, this and all later migrations canceled:\n\nSomething broke", e.message
assert_no_column Person, :last_name,
"On error, the Migrator should revert schema changes but it did not."
end
def test_migration_without_transaction
assert_no_column Person, :last_name
migration = Class.new(ActiveRecord::Migration::Current) {
disable_ddl_transaction!
def version; 101 end
def migrate(x)
add_column "people", "last_name", :string
raise "Something broke"
end
}.new
migrator = ActiveRecord::Migrator.new(:up, [migration], @schema_migration, 101)
e = assert_raise(StandardError) { migrator.migrate }
assert_equal "An error has occurred, all later migrations canceled:\n\nSomething broke", e.message
assert_column Person, :last_name,
"without ddl transactions, the Migrator should not rollback on error but it did."
ensure
Person.reset_column_information
if Person.column_names.include?("last_name")
Person.connection.remove_column("people", "last_name")
end
end
end
def test_schema_migrations_table_name
original_schema_migrations_table_name = ActiveRecord::Base.schema_migrations_table_name
assert_equal "schema_migrations", ActiveRecord::SchemaMigration.table_name
ActiveRecord::Base.table_name_prefix = "prefix_"
ActiveRecord::Base.table_name_suffix = "_suffix"
Reminder.reset_table_name
assert_equal "prefix_schema_migrations_suffix", ActiveRecord::SchemaMigration.table_name
ActiveRecord::Base.schema_migrations_table_name = "changed"
Reminder.reset_table_name
assert_equal "prefix_changed_suffix", ActiveRecord::SchemaMigration.table_name
ActiveRecord::Base.table_name_prefix = ""
ActiveRecord::Base.table_name_suffix = ""
Reminder.reset_table_name
assert_equal "changed", ActiveRecord::SchemaMigration.table_name
ensure
ActiveRecord::Base.schema_migrations_table_name = original_schema_migrations_table_name
ActiveRecord::SchemaMigration.reset_table_name
Reminder.reset_table_name
end
def test_internal_metadata_table_name
original_internal_metadata_table_name = ActiveRecord::Base.internal_metadata_table_name
assert_equal "ar_internal_metadata", ActiveRecord::InternalMetadata.table_name
ActiveRecord::Base.table_name_prefix = "p_"
ActiveRecord::Base.table_name_suffix = "_s"
Reminder.reset_table_name
assert_equal "p_ar_internal_metadata_s", ActiveRecord::InternalMetadata.table_name
ActiveRecord::Base.internal_metadata_table_name = "changed"
Reminder.reset_table_name
assert_equal "p_changed_s", ActiveRecord::InternalMetadata.table_name
ActiveRecord::Base.table_name_prefix = ""
ActiveRecord::Base.table_name_suffix = ""
Reminder.reset_table_name
assert_equal "changed", ActiveRecord::InternalMetadata.table_name
ensure
ActiveRecord::Base.internal_metadata_table_name = original_internal_metadata_table_name
ActiveRecord::InternalMetadata.reset_table_name
Reminder.reset_table_name
end
def test_internal_metadata_stores_environment
current_env = ActiveRecord::ConnectionHandling::DEFAULT_ENV.call
migrations_path = MIGRATIONS_ROOT + "/valid"
migrator = ActiveRecord::MigrationContext.new(migrations_path, @schema_migration)
migrator.up
assert_equal current_env, ActiveRecord::InternalMetadata[:environment]
original_rails_env = ENV["RAILS_ENV"]
original_rack_env = ENV["RACK_ENV"]
ENV["RAILS_ENV"] = ENV["RACK_ENV"] = "foofoo"
new_env = ActiveRecord::ConnectionHandling::DEFAULT_ENV.call
assert_not_equal current_env, new_env
sleep 1 # mysql by default does not store fractional seconds in the database
migrator.up
assert_equal new_env, ActiveRecord::InternalMetadata[:environment]
ensure
ENV["RAILS_ENV"] = original_rails_env
ENV["RACK_ENV"] = original_rack_env
migrator.up
end
def test_internal_metadata_stores_environment_when_other_data_exists
ActiveRecord::InternalMetadata.delete_all
ActiveRecord::InternalMetadata[:foo] = "bar"
current_env = ActiveRecord::ConnectionHandling::DEFAULT_ENV.call
migrations_path = MIGRATIONS_ROOT + "/valid"
migrator = ActiveRecord::MigrationContext.new(migrations_path, @schema_migration)
migrator.up
assert_equal current_env, ActiveRecord::InternalMetadata[:environment]
assert_equal "bar", ActiveRecord::InternalMetadata[:foo]
end
def test_internal_metadata_not_used_when_not_enabled
ActiveRecord::InternalMetadata.drop_table
original_config = ActiveRecord::Base.connection.instance_variable_get("@config")
modified_config = original_config.dup.merge(use_metadata_table: false)
ActiveRecord::Base.connection
.instance_variable_set("@config", modified_config)
assert_not ActiveRecord::InternalMetadata.enabled?
assert_not ActiveRecord::InternalMetadata.table_exists?
migrations_path = MIGRATIONS_ROOT + "/valid"
migrator = ActiveRecord::MigrationContext.new(migrations_path, @schema_migration)
migrator.up
assert_not ActiveRecord::InternalMetadata[:environment]
assert_not ActiveRecord::InternalMetadata.table_exists?
ensure
ActiveRecord::Base.connection.instance_variable_set("@config", original_config)
ActiveRecord::InternalMetadata.create_table
end
def test_internal_metadata_create_table_wont_be_affected_by_schema_cache
ActiveRecord::InternalMetadata.drop_table
assert_not_predicate ActiveRecord::InternalMetadata, :table_exists?
ActiveRecord::InternalMetadata.connection.transaction do
ActiveRecord::InternalMetadata.create_table
assert_predicate ActiveRecord::InternalMetadata, :table_exists?
ActiveRecord::InternalMetadata[:version] = "foo"
assert_equal "foo", ActiveRecord::InternalMetadata[:version]
raise ActiveRecord::Rollback
end
ActiveRecord::InternalMetadata.connection.transaction do
ActiveRecord::InternalMetadata.create_table
assert_predicate ActiveRecord::InternalMetadata, :table_exists?
ActiveRecord::InternalMetadata[:version] = "bar"
assert_equal "bar", ActiveRecord::InternalMetadata[:version]
raise ActiveRecord::Rollback
end
ensure
ActiveRecord::InternalMetadata.create_table
end
def test_schema_migration_create_table_wont_be_affected_by_schema_cache
ActiveRecord::SchemaMigration.drop_table
assert_not_predicate ActiveRecord::SchemaMigration, :table_exists?
ActiveRecord::SchemaMigration.connection.transaction do
ActiveRecord::SchemaMigration.create_table
assert_predicate ActiveRecord::SchemaMigration, :table_exists?
schema_migration = ActiveRecord::SchemaMigration.create!(version: "foo")
assert_equal "foo", schema_migration[:version]
raise ActiveRecord::Rollback
end
ActiveRecord::SchemaMigration.connection.transaction do
ActiveRecord::SchemaMigration.create_table
assert_predicate ActiveRecord::SchemaMigration, :table_exists?
schema_migration = ActiveRecord::SchemaMigration.create!(version: "bar")
assert_equal "bar", schema_migration[:version]
raise ActiveRecord::Rollback
end
ensure
ActiveRecord::SchemaMigration.create_table
end
def test_proper_table_name_on_migration
reminder_class = new_isolated_reminder_class
migration = ActiveRecord::Migration.new
assert_equal "table", migration.proper_table_name("table")
assert_equal "table", migration.proper_table_name(:table)
assert_equal "reminders", migration.proper_table_name(reminder_class)
reminder_class.reset_table_name
assert_equal reminder_class.table_name, migration.proper_table_name(reminder_class)
# Use the model's own prefix/suffix if a model is given
ActiveRecord::Base.table_name_prefix = "ARprefix_"
ActiveRecord::Base.table_name_suffix = "_ARsuffix"
reminder_class.table_name_prefix = "prefix_"
reminder_class.table_name_suffix = "_suffix"
reminder_class.reset_table_name
assert_equal "prefix_reminders_suffix", migration.proper_table_name(reminder_class)
reminder_class.table_name_prefix = ""
reminder_class.table_name_suffix = ""
reminder_class.reset_table_name
# Use AR::Base's prefix/suffix if string or symbol is given
ActiveRecord::Base.table_name_prefix = "prefix_"
ActiveRecord::Base.table_name_suffix = "_suffix"
reminder_class.reset_table_name
assert_equal "prefix_table_suffix", migration.proper_table_name("table", migration.table_name_options)
assert_equal "prefix_table_suffix", migration.proper_table_name(:table, migration.table_name_options)
end
def test_rename_table_with_prefix_and_suffix
assert_not_predicate Thing, :table_exists?
ActiveRecord::Base.table_name_prefix = "p_"
ActiveRecord::Base.table_name_suffix = "_s"
Thing.reset_table_name
Thing.reset_sequence_name
WeNeedThings.up
assert_predicate Thing, :table_exists?
Thing.reset_column_information
assert Thing.create("content" => "hello world")
assert_equal "hello world", Thing.first.content
RenameThings.up
Thing.table_name = "p_awesome_things_s"
assert_equal "hello world", Thing.first.content
ensure
Thing.reset_table_name
Thing.reset_sequence_name
end
def test_add_drop_table_with_prefix_and_suffix
assert_not_predicate Reminder, :table_exists?
ActiveRecord::Base.table_name_prefix = "prefix_"
ActiveRecord::Base.table_name_suffix = "_suffix"
Reminder.reset_table_name
Reminder.reset_sequence_name
WeNeedReminders.up
assert_predicate Reminder, :table_exists?
Reminder.reset_column_information
assert Reminder.create("content" => "hello world", "remind_at" => Time.now)
assert_equal "hello world", Reminder.first.content
WeNeedReminders.down
assert_raise(ActiveRecord::StatementInvalid) { Reminder.first }
ensure
Reminder.reset_sequence_name
end
def test_create_table_with_binary_column
assert_nothing_raised {
Person.connection.create_table :binary_testings do |t|
t.column "data", :binary, null: false
end
}
columns = Person.connection.columns(:binary_testings)
data_column = columns.detect { |c| c.name == "data" }
assert_nil data_column.default
ensure
Person.connection.drop_table :binary_testings, if_exists: true
end
unless mysql_enforcing_gtid_consistency?
def test_create_table_with_query
Person.connection.create_table :table_from_query_testings, as: "SELECT id FROM people WHERE id = 1"
columns = Person.connection.columns(:table_from_query_testings)
assert_equal [1], Person.connection.select_values("SELECT * FROM table_from_query_testings")
assert_equal 1, columns.length
assert_equal "id", columns.first.name
ensure
Person.connection.drop_table :table_from_query_testings rescue nil
end
def test_create_table_with_query_from_relation
Person.connection.create_table :table_from_query_testings, as: Person.select(:id).where(id: 1)
columns = Person.connection.columns(:table_from_query_testings)
assert_equal [1], Person.connection.select_values("SELECT * FROM table_from_query_testings")
assert_equal 1, columns.length
assert_equal "id", columns.first.name
ensure
Person.connection.drop_table :table_from_query_testings rescue nil
end
end
if current_adapter?(:SQLite3Adapter)
def test_allows_sqlite3_rollback_on_invalid_column_type
Person.connection.create_table :something, force: true do |t|
t.column :number, :integer
t.column :name, :string
t.column :foo, :bar
end
assert Person.connection.column_exists?(:something, :foo)
assert_nothing_raised { Person.connection.remove_column :something, :foo, :bar }
assert_not Person.connection.column_exists?(:something, :foo)
assert Person.connection.column_exists?(:something, :name)
assert Person.connection.column_exists?(:something, :number)
ensure
Person.connection.drop_table :something, if_exists: true
end
end
def test_decimal_scale_without_precision_should_raise
e = assert_raise(ArgumentError) do
Person.connection.create_table :test_decimal_scales, force: true do |t|
t.decimal :scaleonly, scale: 10
end
end
assert_equal "Error adding decimal column: precision cannot be empty if scale is specified", e.message
ensure
Person.connection.drop_table :test_decimal_scales, if_exists: true
end
if current_adapter?(:Mysql2Adapter, :PostgreSQLAdapter)
def test_out_of_range_integer_limit_should_raise
e = assert_raise(ArgumentError) do
Person.connection.create_table :test_integer_limits, force: true do |t|
t.column :bigone, :integer, limit: 10
end
end
assert_includes e.message, "No integer type has byte size 10"
ensure
Person.connection.drop_table :test_integer_limits, if_exists: true
end
def test_out_of_range_text_limit_should_raise
e = assert_raise(ArgumentError) do
Person.connection.create_table :test_text_limits, force: true do |t|
t.text :bigtext, limit: 0xfffffffff
end
end
assert_includes e.message, "No text type has byte size #{0xfffffffff}"
ensure
Person.connection.drop_table :test_text_limits, if_exists: true
end
def test_out_of_range_binary_limit_should_raise
e = assert_raise(ArgumentError) do
Person.connection.create_table :test_binary_limits, force: true do |t|
t.binary :bigbinary, limit: 0xfffffffff
end
end
assert_includes e.message, "No binary type has byte size #{0xfffffffff}"
ensure
Person.connection.drop_table :test_binary_limits, if_exists: true
end
end
if current_adapter?(:Mysql2Adapter)
def test_invalid_text_size_should_raise
e = assert_raise(ArgumentError) do
Person.connection.create_table :test_text_sizes, force: true do |t|
t.text :bigtext, size: 0xfffffffff
end
end
assert_equal "#{0xfffffffff} is invalid :size value. Only :tiny, :medium, and :long are allowed.", e.message
ensure
Person.connection.drop_table :test_text_sizes, if_exists: true
end
end
if ActiveRecord::Base.connection.supports_advisory_locks?
def test_migrator_generates_valid_lock_id
migration = Class.new(ActiveRecord::Migration::Current).new
migrator = ActiveRecord::Migrator.new(:up, [migration], @schema_migration, 100)
lock_id = migrator.send(:generate_migrator_advisory_lock_id)
assert ActiveRecord::Base.connection.get_advisory_lock(lock_id),
"the Migrator should have generated a valid lock id, but it didn't"
assert ActiveRecord::Base.connection.release_advisory_lock(lock_id),
"the Migrator should have generated a valid lock id, but it didn't"
end
def test_generate_migrator_advisory_lock_id
# It is important we are consistent with how we generate this so that
# exclusive locking works across migrator versions
migration = Class.new(ActiveRecord::Migration::Current).new
migrator = ActiveRecord::Migrator.new(:up, [migration], @schema_migration, 100)
lock_id = migrator.send(:generate_migrator_advisory_lock_id)
current_database = ActiveRecord::Base.connection.current_database
salt = ActiveRecord::Migrator::MIGRATOR_SALT
expected_id = Zlib.crc32(current_database) * salt
assert lock_id == expected_id, "expected lock id generated by the migrator to be #{expected_id}, but it was #{lock_id} instead"
assert lock_id.bit_length <= 63, "lock id must be a signed integer of max 63 bits magnitude"
end
def test_migrator_one_up_with_unavailable_lock
assert_no_column Person, :last_name
migration = Class.new(ActiveRecord::Migration::Current) {
def version; 100 end
def migrate(x)
add_column "people", "last_name", :string
end
}.new
migrator = ActiveRecord::Migrator.new(:up, [migration], @schema_migration, 100)
lock_id = migrator.send(:generate_migrator_advisory_lock_id)
with_another_process_holding_lock(lock_id) do
assert_raise(ActiveRecord::ConcurrentMigrationError) { migrator.migrate }
end
assert_no_column Person, :last_name,
"without an advisory lock, the Migrator should not make any changes, but it did."
end
def test_migrator_one_up_with_unavailable_lock_using_run
assert_no_column Person, :last_name
migration = Class.new(ActiveRecord::Migration::Current) {
def version; 100 end
def migrate(x)
add_column "people", "last_name", :string
end
}.new
migrator = ActiveRecord::Migrator.new(:up, [migration], @schema_migration, 100)
lock_id = migrator.send(:generate_migrator_advisory_lock_id)
with_another_process_holding_lock(lock_id) do
assert_raise(ActiveRecord::ConcurrentMigrationError) { migrator.run }
end
assert_no_column Person, :last_name,
"without an advisory lock, the Migrator should not make any changes, but it did."
end
def test_with_advisory_lock_doesnt_release_closed_connections
migration = Class.new(ActiveRecord::Migration::Current).new
migrator = ActiveRecord::Migrator.new(:up, [migration], @schema_migration, 100)
silence_stream($stderr) do
migrator.send(:with_advisory_lock) do
ActiveRecord::Base.establish_connection :arunit
end
end
end
if current_adapter?(:PostgreSQLAdapter)
def test_with_advisory_lock_closes_connection
migration = Class.new(ActiveRecord::Migration::Current) {
def version; 100 end
def migrate(x)
end
}.new
migrator = ActiveRecord::Migrator.new(:up, [migration], @schema_migration, 100)
lock_id = migrator.send(:generate_migrator_advisory_lock_id)
query = <<~SQL
SELECT query
FROM pg_stat_activity
WHERE datname = '#{ActiveRecord::Base.connection_db_config.database}'
AND state = 'idle'
AND query LIKE '%#{lock_id}%'
SQL
assert_no_changes -> { ActiveRecord::Base.connection.exec_query(query).rows.flatten } do
migrator.migrate
end
end
end
def test_with_advisory_lock_raises_the_right_error_when_it_fails_to_release_lock
migration = Class.new(ActiveRecord::Migration::Current).new
migrator = ActiveRecord::Migrator.new(:up, [migration], @schema_migration, 100)
lock_id = migrator.send(:generate_migrator_advisory_lock_id)
e = assert_raises(ActiveRecord::ConcurrentMigrationError) do
silence_stream($stderr) do
migrator.stub(:with_advisory_lock_connection, ->(&block) { block.call(ActiveRecord::Base.connection) }) do
migrator.send(:with_advisory_lock) do
ActiveRecord::Base.connection.release_advisory_lock(lock_id)
end
end
end
end
assert_match(
/#{ActiveRecord::ConcurrentMigrationError::RELEASE_LOCK_FAILED_MESSAGE}/,
e.message
)
end
end
private
# This is needed to isolate class_attribute assignments like `table_name_prefix`
# for each test case.
def new_isolated_reminder_class
Class.new(Reminder) {
def self.name; "Reminder"; end
def self.base_class; self; end
}
end
def with_another_process_holding_lock(lock_id)
thread_lock = Concurrent::CountDownLatch.new
test_terminated = Concurrent::CountDownLatch.new
other_process = Thread.new do
conn = ActiveRecord::Base.connection_pool.checkout
conn.get_advisory_lock(lock_id)
thread_lock.count_down
test_terminated.wait # hold the lock open until we tested everything
ensure
conn.release_advisory_lock(lock_id)
ActiveRecord::Base.connection_pool.checkin(conn)
end
thread_lock.wait # wait until the 'other process' has the lock
yield
test_terminated.count_down
other_process.join
end
end
class ReservedWordsMigrationTest < ActiveRecord::TestCase
def test_drop_index_from_table_named_values
connection = Person.connection
connection.create_table :values, force: true do |t|
t.integer :value
end
assert_nothing_raised do
connection.add_index :values, :value
connection.remove_index :values, :value
end
ensure
connection.drop_table :values rescue nil
end
end
class ExplicitlyNamedIndexMigrationTest < ActiveRecord::TestCase
def test_drop_index_by_name
connection = Person.connection
connection.create_table :values, force: true do |t|
t.integer :value
end
assert_nothing_raised do
connection.add_index :values, :value, name: "a_different_name"
connection.remove_index :values, :value, name: "a_different_name"
end
ensure
connection.drop_table :values rescue nil
end
end
if ActiveRecord::Base.connection.supports_bulk_alter?
class BulkAlterTableMigrationsTest < ActiveRecord::TestCase
def setup
@connection = Person.connection
@connection.create_table(:delete_me, force: true) { |t| }
Person.reset_column_information
Person.reset_sequence_name
end
teardown do
Person.connection.drop_table(:delete_me) rescue nil
end
def test_adding_multiple_columns
classname = ActiveRecord::Base.connection.class.name[/[^:]*$/]
expected_query_count = {
"Mysql2Adapter" => 1,
"PostgreSQLAdapter" => 2, # one for bulk change, one for comment
}.fetch(classname) {
raise "need an expected query count for #{classname}"
}
assert_queries(expected_query_count) do
with_bulk_change_table do |t|
t.column :name, :string
t.string :qualification, :experience
t.integer :age, default: 0
t.date :birthdate, comment: "This is a comment"
t.timestamps null: true
end
end
assert_equal 8, columns.size
[:name, :qualification, :experience].each { |s| assert_equal :string, column(s).type }
assert_equal "0", column(:age).default
assert_equal "This is a comment", column(:birthdate).comment
end
def test_rename_columns
with_bulk_change_table do |t|
t.string :qualification
end
assert column(:qualification)
with_bulk_change_table do |t|
t.rename :qualification, :experience
t.string :qualification_experience
end
assert_not column(:qualification)
assert column(:experience)
assert column(:qualification_experience)
end
def test_removing_columns
with_bulk_change_table do |t|
t.string :qualification, :experience
end
[:qualification, :experience].each { |c| assert column(c) }
assert_queries(1) do
with_bulk_change_table do |t|
t.remove :qualification, :experience
t.string :qualification_experience
end
end
[:qualification, :experience].each { |c| assert_not column(c) }
assert column(:qualification_experience)
end
def test_adding_timestamps
with_bulk_change_table do |t|
t.string :title
end
assert column(:title)
assert_queries(1) do
with_bulk_change_table do |t|
t.timestamps
t.remove :title
end
end
[:created_at, :updated_at].each { |c| assert column(c) }
assert_not column(:title)
end
def test_removing_timestamps
with_bulk_change_table do |t|
t.timestamps
end
[:created_at, :updated_at].each { |c| assert column(c) }
assert_queries(1) do
with_bulk_change_table do |t|
t.remove_timestamps
t.string :title
end
end
[:created_at, :updated_at].each { |c| assert_not column(c) }
assert column(:title)
end
def test_adding_indexes
with_bulk_change_table do |t|
t.string :username
t.string :name
t.integer :age
end
classname = ActiveRecord::Base.connection.class.name[/[^:]*$/]
expected_query_count = {
"Mysql2Adapter" => 1, # mysql2 supports creating two indexes using one statement
"PostgreSQLAdapter" => 3,
}.fetch(classname) {
raise "need an expected query count for #{classname}"
}
assert_queries(expected_query_count) do
with_bulk_change_table do |t|
t.index :username, unique: true, name: :awesome_username_index
t.index [:name, :age], comment: "This is a comment"
end
end
assert_equal 2, indexes.size
name_age_index = index(:index_delete_me_on_name_and_age)
assert_equal ["name", "age"].sort, name_age_index.columns.sort
assert_equal "This is a comment", name_age_index.comment
assert_not name_age_index.unique
assert index(:awesome_username_index).unique
end
def test_removing_index
with_bulk_change_table do |t|
t.string :name
t.index :name
end
assert index(:index_delete_me_on_name)
classname = ActiveRecord::Base.connection.class.name[/[^:]*$/]
expected_query_count = {
"Mysql2Adapter" => 1, # mysql2 supports dropping and creating two indexes using one statement
"PostgreSQLAdapter" => 2,
}.fetch(classname) {
raise "need an expected query count for #{classname}"
}
assert_queries(expected_query_count) do
with_bulk_change_table do |t|
t.remove_index :name
t.index :name, name: :new_name_index, unique: true
end
end
assert_not index(:index_delete_me_on_name)
new_name_index = index(:new_name_index)
assert new_name_index.unique
end
def test_changing_columns
with_bulk_change_table do |t|
t.string :name
t.date :birthdate
end
assert_not column(:name).default
assert_equal :date, column(:birthdate).type
classname = ActiveRecord::Base.connection.class.name[/[^:]*$/]
expected_query_count = {
"Mysql2Adapter" => 3, # one query for columns, one query for primary key, one query to do the bulk change
"PostgreSQLAdapter" => 3, # one query for columns, one for bulk change, one for comment
}.fetch(classname) {
raise "need an expected query count for #{classname}"
}
assert_queries(expected_query_count, ignore_none: true) do
with_bulk_change_table do |t|
t.change :name, :string, default: "NONAME"
t.change :birthdate, :datetime, comment: "This is a comment"
end
end
assert_equal "NONAME", column(:name).default
assert_equal :datetime, column(:birthdate).type
assert_equal "This is a comment", column(:birthdate).comment
end
def test_changing_index
with_bulk_change_table do |t|
t.string :username
t.index :username, name: :username_index
end
assert index(:username_index)
assert_not index(:username_index).unique
classname = ActiveRecord::Base.connection.class.name[/[^:]*$/]
expected_query_count = {
"Mysql2Adapter" => 1, # mysql2 supports dropping and creating two indexes using one statement
"PostgreSQLAdapter" => 2,
}.fetch(classname) {
raise "need an expected query count for #{classname}"
}
assert_queries(expected_query_count) do
with_bulk_change_table do |t|
t.remove_index name: :username_index
t.index :username, name: :username_index, unique: true
end
end
assert index(:username_index)
assert index(:username_index).unique
end
private
def with_bulk_change_table
# Reset columns/indexes cache as we're changing the table
@columns = @indexes = nil
Person.connection.change_table(:delete_me, bulk: true) do |t|
yield t
end
end
def column(name)
columns.detect { |c| c.name == name.to_s }
end
def columns
@columns ||= Person.connection.columns("delete_me")
end
def index(name)
indexes.detect { |i| i.name == name.to_s }
end
def indexes
@indexes ||= Person.connection.indexes("delete_me")
end
end # AlterTableMigrationsTest
end
class CopyMigrationsTest < ActiveRecord::TestCase
include ActiveSupport::Testing::Stream
def setup
end
def clear
ActiveRecord.timestamped_migrations = true
to_delete = Dir[@migrations_path + "/*.rb"] - @existing_migrations
File.delete(*to_delete)
end
def test_copying_migrations_without_timestamps
ActiveRecord.timestamped_migrations = false
@migrations_path = MIGRATIONS_ROOT + "/valid"
@existing_migrations = Dir[@migrations_path + "/*.rb"]
copied = ActiveRecord::Migration.copy(@migrations_path, bukkits: MIGRATIONS_ROOT + "/to_copy")
assert File.exist?(@migrations_path + "/4_people_have_hobbies.bukkits.rb")
assert File.exist?(@migrations_path + "/5_people_have_descriptions.bukkits.rb")
assert_equal [@migrations_path + "/4_people_have_hobbies.bukkits.rb", @migrations_path + "/5_people_have_descriptions.bukkits.rb"], copied.map(&:filename)
expected = "# This migration comes from bukkits (originally 1)"
assert_equal expected, IO.readlines(@migrations_path + "/4_people_have_hobbies.bukkits.rb")[2].chomp
files_count = Dir[@migrations_path + "/*.rb"].length
copied = ActiveRecord::Migration.copy(@migrations_path, bukkits: MIGRATIONS_ROOT + "/to_copy")
assert_equal files_count, Dir[@migrations_path + "/*.rb"].length
assert_empty copied
ensure
clear
end
def test_copying_migrations_without_timestamps_from_2_sources
ActiveRecord.timestamped_migrations = false
@migrations_path = MIGRATIONS_ROOT + "/valid"
@existing_migrations = Dir[@migrations_path + "/*.rb"]
sources = {}
sources[:bukkits] = MIGRATIONS_ROOT + "/to_copy"
sources[:omg] = MIGRATIONS_ROOT + "/to_copy2"
ActiveRecord::Migration.copy(@migrations_path, sources)
assert File.exist?(@migrations_path + "/4_people_have_hobbies.bukkits.rb")
assert File.exist?(@migrations_path + "/5_people_have_descriptions.bukkits.rb")
assert File.exist?(@migrations_path + "/6_create_articles.omg.rb")
assert File.exist?(@migrations_path + "/7_create_comments.omg.rb")
files_count = Dir[@migrations_path + "/*.rb"].length
ActiveRecord::Migration.copy(@migrations_path, sources)
assert_equal files_count, Dir[@migrations_path + "/*.rb"].length
ensure
clear
end
def test_copying_migrations_with_timestamps
@migrations_path = MIGRATIONS_ROOT + "/valid_with_timestamps"
@existing_migrations = Dir[@migrations_path + "/*.rb"]
travel_to(Time.utc(2010, 7, 26, 10, 10, 10)) do
copied = ActiveRecord::Migration.copy(@migrations_path, bukkits: MIGRATIONS_ROOT + "/to_copy_with_timestamps")
assert File.exist?(@migrations_path + "/20100726101010_people_have_hobbies.bukkits.rb")
assert File.exist?(@migrations_path + "/20100726101011_people_have_descriptions.bukkits.rb")
expected = [@migrations_path + "/20100726101010_people_have_hobbies.bukkits.rb",
@migrations_path + "/20100726101011_people_have_descriptions.bukkits.rb"]
assert_equal expected, copied.map(&:filename)
files_count = Dir[@migrations_path + "/*.rb"].length
copied = ActiveRecord::Migration.copy(@migrations_path, bukkits: MIGRATIONS_ROOT + "/to_copy_with_timestamps")
assert_equal files_count, Dir[@migrations_path + "/*.rb"].length
assert_empty copied
end
ensure
clear
end
def test_copying_migrations_with_timestamps_from_2_sources
@migrations_path = MIGRATIONS_ROOT + "/valid_with_timestamps"
@existing_migrations = Dir[@migrations_path + "/*.rb"]
sources = {}
sources[:bukkits] = MIGRATIONS_ROOT + "/to_copy_with_timestamps"
sources[:omg] = MIGRATIONS_ROOT + "/to_copy_with_timestamps2"
travel_to(Time.utc(2010, 7, 26, 10, 10, 10)) do
copied = ActiveRecord::Migration.copy(@migrations_path, sources)
assert File.exist?(@migrations_path + "/20100726101010_people_have_hobbies.bukkits.rb")
assert File.exist?(@migrations_path + "/20100726101011_people_have_descriptions.bukkits.rb")
assert File.exist?(@migrations_path + "/20100726101012_create_articles.omg.rb")
assert File.exist?(@migrations_path + "/20100726101013_create_comments.omg.rb")
assert_equal 4, copied.length
files_count = Dir[@migrations_path + "/*.rb"].length
ActiveRecord::Migration.copy(@migrations_path, sources)
assert_equal files_count, Dir[@migrations_path + "/*.rb"].length
end
ensure
clear
end
def test_copying_migrations_with_timestamps_to_destination_with_timestamps_in_future
@migrations_path = MIGRATIONS_ROOT + "/valid_with_timestamps"
@existing_migrations = Dir[@migrations_path + "/*.rb"]
travel_to(Time.utc(2010, 2, 20, 10, 10, 10)) do
ActiveRecord::Migration.copy(@migrations_path, bukkits: MIGRATIONS_ROOT + "/to_copy_with_timestamps")
assert File.exist?(@migrations_path + "/20100301010102_people_have_hobbies.bukkits.rb")
assert File.exist?(@migrations_path + "/20100301010103_people_have_descriptions.bukkits.rb")
files_count = Dir[@migrations_path + "/*.rb"].length
copied = ActiveRecord::Migration.copy(@migrations_path, bukkits: MIGRATIONS_ROOT + "/to_copy_with_timestamps")
assert_equal files_count, Dir[@migrations_path + "/*.rb"].length
assert_empty copied
end
ensure
clear
end
def test_copying_migrations_preserving_magic_comments
ActiveRecord.timestamped_migrations = false
@migrations_path = MIGRATIONS_ROOT + "/valid"
@existing_migrations = Dir[@migrations_path + "/*.rb"]
copied = ActiveRecord::Migration.copy(@migrations_path, bukkits: MIGRATIONS_ROOT + "/magic")
assert File.exist?(@migrations_path + "/4_currencies_have_symbols.bukkits.rb")
assert_equal [@migrations_path + "/4_currencies_have_symbols.bukkits.rb"], copied.map(&:filename)
expected = "# frozen_string_literal: true\n# coding: ISO-8859-15\n\n# This migration comes from bukkits (originally 1)"
assert_equal expected, IO.readlines(@migrations_path + "/4_currencies_have_symbols.bukkits.rb")[0..3].join.chomp
files_count = Dir[@migrations_path + "/*.rb"].length
copied = ActiveRecord::Migration.copy(@migrations_path, bukkits: MIGRATIONS_ROOT + "/magic")
assert_equal files_count, Dir[@migrations_path + "/*.rb"].length
assert_empty copied
ensure
clear
end
def test_skipping_migrations
@migrations_path = MIGRATIONS_ROOT + "/valid_with_timestamps"
@existing_migrations = Dir[@migrations_path + "/*.rb"]
sources = {}
sources[:bukkits] = MIGRATIONS_ROOT + "/to_copy_with_timestamps"
sources[:omg] = MIGRATIONS_ROOT + "/to_copy_with_name_collision"
skipped = []
on_skip = Proc.new { |name, migration| skipped << "#{name} #{migration.name}" }
copied = ActiveRecord::Migration.copy(@migrations_path, sources, on_skip: on_skip)
assert_equal 2, copied.length
assert_equal 1, skipped.length
assert_equal ["omg PeopleHaveHobbies"], skipped
ensure
clear
end
def test_skip_is_not_called_if_migrations_are_from_the_same_plugin
@migrations_path = MIGRATIONS_ROOT + "/valid_with_timestamps"
@existing_migrations = Dir[@migrations_path + "/*.rb"]
sources = {}
sources[:bukkits] = MIGRATIONS_ROOT + "/to_copy_with_timestamps"
skipped = []
on_skip = Proc.new { |name, migration| skipped << "#{name} #{migration.name}" }
copied = ActiveRecord::Migration.copy(@migrations_path, sources, on_skip: on_skip)
ActiveRecord::Migration.copy(@migrations_path, sources, on_skip: on_skip)
assert_equal 2, copied.length
assert_equal 0, skipped.length
ensure
clear
end
def test_copying_migrations_to_non_existing_directory
@migrations_path = MIGRATIONS_ROOT + "/non_existing"
@existing_migrations = []
travel_to(Time.utc(2010, 7, 26, 10, 10, 10)) do
copied = ActiveRecord::Migration.copy(@migrations_path, bukkits: MIGRATIONS_ROOT + "/to_copy_with_timestamps")
assert File.exist?(@migrations_path + "/20100726101010_people_have_hobbies.bukkits.rb")
assert File.exist?(@migrations_path + "/20100726101011_people_have_descriptions.bukkits.rb")
assert_equal 2, copied.length
end
ensure
clear
Dir.delete(@migrations_path)
end
def test_copying_migrations_to_empty_directory
@migrations_path = MIGRATIONS_ROOT + "/empty"
@existing_migrations = []
travel_to(Time.utc(2010, 7, 26, 10, 10, 10)) do
copied = ActiveRecord::Migration.copy(@migrations_path, bukkits: MIGRATIONS_ROOT + "/to_copy_with_timestamps")
assert File.exist?(@migrations_path + "/20100726101010_people_have_hobbies.bukkits.rb")
assert File.exist?(@migrations_path + "/20100726101011_people_have_descriptions.bukkits.rb")
assert_equal 2, copied.length
end
ensure
clear
end
def test_check_pending_with_stdlib_logger
old, ActiveRecord::Base.logger = ActiveRecord::Base.logger, ::Logger.new($stdout)
quietly do
assert_nothing_raised { ActiveRecord::Migration::CheckPending.new(Proc.new { }).call({}) }
end
ensure
ActiveRecord::Base.logger = old
end
def test_unknown_migration_version_should_raise_an_argument_error
assert_raise(ArgumentError) { ActiveRecord::Migration[1.0] }
end
end