rails--rails/activerecord/test/cases/migration/change_schema_test.rb

539 lines
20 KiB
Ruby

# frozen_string_literal: true
require "cases/helper"
module ActiveRecord
class Migration
class ChangeSchemaTest < ActiveRecord::TestCase
attr_reader :connection, :table_name
def setup
super
@connection = ActiveRecord::Base.connection
@table_name = :testings
end
teardown do
connection.drop_table :testings rescue nil
ActiveRecord::Base.primary_key_prefix_type = nil
ActiveRecord::Base.clear_cache!
end
def test_create_table_without_id
testing_table_with_only_foo_attribute do
assert_equal connection.columns(:testings).size, 1
end
end
def test_add_column_with_primary_key_attribute
testing_table_with_only_foo_attribute do
connection.add_column :testings, :id, :primary_key
assert_equal connection.columns(:testings).size, 2
end
end
def test_create_table_adds_id
connection.create_table :testings do |t|
t.column :foo, :string
end
assert_equal %w(id foo), connection.columns(:testings).map(&:name)
end
def test_create_table_with_not_null_column
connection.create_table :testings do |t|
t.column :foo, :string, null: false
end
assert_raises(ActiveRecord::NotNullViolation) do
connection.execute "insert into testings (foo) values (NULL)"
end
end
def test_create_table_with_defaults
# MySQL doesn't allow defaults on TEXT or BLOB columns.
mysql = current_adapter?(:Mysql2Adapter)
connection.create_table :testings do |t|
t.column :one, :string, default: "hello"
t.column :two, :boolean, default: true
t.column :three, :boolean, default: false
t.column :four, :integer, default: 1
t.column :five, :text, default: "hello" unless mysql
end
columns = connection.columns(:testings)
one = columns.detect { |c| c.name == "one" }
two = columns.detect { |c| c.name == "two" }
three = columns.detect { |c| c.name == "three" }
four = columns.detect { |c| c.name == "four" }
five = columns.detect { |c| c.name == "five" } unless mysql
assert_equal "hello", one.default
assert_equal true, connection.lookup_cast_type_from_column(two).deserialize(two.default)
assert_equal false, connection.lookup_cast_type_from_column(three).deserialize(three.default)
assert_equal "1", four.default
assert_equal "hello", five.default unless mysql
end
if current_adapter?(:PostgreSQLAdapter)
def test_add_column_with_array
connection.create_table :testings
connection.add_column :testings, :foo, :string, array: true
columns = connection.columns(:testings)
array_column = columns.detect { |c| c.name == "foo" }
assert_predicate array_column, :array?
end
def test_create_table_with_array_column
connection.create_table :testings do |t|
t.string :foo, array: true
end
columns = connection.columns(:testings)
array_column = columns.detect { |c| c.name == "foo" }
assert_predicate array_column, :array?
end
end
def test_create_table_with_bigint
connection.create_table :testings do |t|
t.bigint :eight_int
end
columns = connection.columns(:testings)
eight = columns.detect { |c| c.name == "eight_int" }
if current_adapter?(:OracleAdapter)
assert_equal "NUMBER(19)", eight.sql_type
elsif current_adapter?(:SQLite3Adapter)
assert_equal "bigint", eight.sql_type
else
assert_equal :integer, eight.type
assert_equal 8, eight.limit
end
ensure
connection.drop_table :testings
end
def test_create_table_with_limits
connection.create_table :testings do |t|
t.column :foo, :string, limit: 255
t.column :default_int, :integer
t.column :one_int, :integer, limit: 1
t.column :four_int, :integer, limit: 4
t.column :eight_int, :integer, limit: 8
end
columns = connection.columns(:testings)
foo = columns.detect { |c| c.name == "foo" }
assert_equal 255, foo.limit
default = columns.detect { |c| c.name == "default_int" }
one = columns.detect { |c| c.name == "one_int" }
four = columns.detect { |c| c.name == "four_int" }
eight = columns.detect { |c| c.name == "eight_int" }
if current_adapter?(:PostgreSQLAdapter)
assert_equal "integer", default.sql_type
assert_equal "smallint", one.sql_type
assert_equal "integer", four.sql_type
assert_equal "bigint", eight.sql_type
elsif current_adapter?(:Mysql2Adapter)
assert_match %r/\Aint/, default.sql_type
assert_match %r/\Atinyint/, one.sql_type
assert_match %r/\Aint/, four.sql_type
assert_match %r/\Abigint/, eight.sql_type
elsif current_adapter?(:OracleAdapter)
assert_equal "NUMBER(38)", default.sql_type
assert_equal "NUMBER(1)", one.sql_type
assert_equal "NUMBER(4)", four.sql_type
assert_equal "NUMBER(8)", eight.sql_type
end
end
def test_create_table_with_primary_key_prefix_as_table_name_with_underscore
ActiveRecord::Base.primary_key_prefix_type = :table_name_with_underscore
connection.create_table :testings do |t|
t.column :foo, :string
end
assert_equal %w(testing_id foo), connection.columns(:testings).map(&:name)
end
def test_create_table_with_primary_key_prefix_as_table_name
ActiveRecord::Base.primary_key_prefix_type = :table_name
connection.create_table :testings do |t|
t.column :foo, :string
end
assert_equal %w(testingid foo), connection.columns(:testings).map(&:name)
end
def test_create_table_raises_when_redefining_primary_key_column
error = assert_raise(ArgumentError) do
connection.create_table :testings do |t|
t.column :id, :string
end
end
assert_equal "you can't redefine the primary key column 'id'. To define a custom primary key, pass { id: false } to create_table.", error.message
end
def test_create_table_raises_when_redefining_custom_primary_key_column
error = assert_raise(ArgumentError) do
connection.create_table :testings, primary_key: :testing_id do |t|
t.column :testing_id, :string
end
end
assert_equal "you can't redefine the primary key column 'testing_id'. To define a custom primary key, pass { id: false } to create_table.", error.message
end
def test_create_table_raises_when_defining_existing_column
error = assert_raise(ArgumentError) do
connection.create_table :testings do |t|
t.column :testing_column, :string
t.column :testing_column, :integer
end
end
assert_equal "you can't define an already defined column 'testing_column'.", error.message
end
def test_create_table_with_timestamps_should_create_datetime_columns
connection.create_table table_name do |t|
t.timestamps
end
created_columns = connection.columns(table_name)
created_at_column = created_columns.detect { |c| c.name == "created_at" }
updated_at_column = created_columns.detect { |c| c.name == "updated_at" }
assert_not created_at_column.null
assert_not updated_at_column.null
end
def test_create_table_with_timestamps_should_create_datetime_columns_with_options
connection.create_table table_name do |t|
t.timestamps null: true
end
created_columns = connection.columns(table_name)
created_at_column = created_columns.detect { |c| c.name == "created_at" }
updated_at_column = created_columns.detect { |c| c.name == "updated_at" }
assert created_at_column.null
assert updated_at_column.null
end
def test_create_table_without_a_block
connection.create_table table_name
end
# SQLite3 will not allow you to add a NOT NULL
# column to a table without a default value.
unless current_adapter?(:SQLite3Adapter)
def test_add_column_not_null_without_default
connection.create_table :testings do |t|
t.column :foo, :string
end
connection.add_column :testings, :bar, :string, null: false
assert_raise(ActiveRecord::NotNullViolation) do
connection.execute "insert into testings (foo, bar) values ('hello', NULL)"
end
end
end
def test_add_column_not_null_with_default
connection.create_table :testings do |t|
t.column :foo, :string
end
quoted_id = connection.quote_column_name("id")
quoted_foo = connection.quote_column_name("foo")
quoted_bar = connection.quote_column_name("bar")
connection.execute("insert into testings (#{quoted_id}, #{quoted_foo}) values (1, 'hello')")
assert_nothing_raised do
connection.add_column :testings, :bar, :string, null: false, default: "default"
end
assert_raises(ActiveRecord::NotNullViolation) do
connection.execute("insert into testings (#{quoted_id}, #{quoted_foo}, #{quoted_bar}) values (2, 'hello', NULL)")
end
end
def test_add_column_with_timestamp_type
connection.create_table :testings do |t|
t.column :foo, :timestamp
end
column = connection.columns(:testings).find { |c| c.name == "foo" }
assert_equal :datetime, column.type
if current_adapter?(:PostgreSQLAdapter)
assert_equal "timestamp without time zone", column.sql_type
elsif current_adapter?(:Mysql2Adapter)
assert_equal "timestamp", column.sql_type
elsif current_adapter?(:OracleAdapter)
assert_equal "TIMESTAMP(6)", column.sql_type
else
assert_equal connection.type_to_sql("datetime"), column.sql_type
end
end
def test_add_column_with_postgresql_datetime_type
connection.create_table :testings do |t|
t.column :foo, :datetime
end
column = connection.columns(:testings).find { |c| c.name == "foo" }
assert_equal :datetime, column.type
if current_adapter?(:PostgreSQLAdapter)
assert_equal "timestamp(6) without time zone", column.sql_type
elsif current_adapter?(:Mysql2Adapter)
sql_type = supports_datetime_with_precision? ? "datetime(6)" : "datetime"
assert_equal sql_type, column.sql_type
else
assert_equal connection.type_to_sql("datetime(6)"), column.sql_type
end
end
if current_adapter?(:PostgreSQLAdapter)
def test_add_column_with_datetime_in_timestamptz_mode
with_postgresql_datetime_type(:timestamptz) do
connection.create_table :testings do |t|
t.column :foo, :datetime
end
column = connection.columns(:testings).find { |c| c.name == "foo" }
assert_equal :datetime, column.type
assert_equal "timestamp(6) with time zone", column.sql_type
end
end
end
def test_change_column_with_timestamp_type
connection.create_table :testings do |t|
t.column :foo, :datetime, null: false
end
connection.change_column :testings, :foo, :timestamp
column = connection.columns(:testings).find { |c| c.name == "foo" }
assert_equal :datetime, column.type
if current_adapter?(:PostgreSQLAdapter)
assert_equal "timestamp without time zone", column.sql_type
elsif current_adapter?(:Mysql2Adapter)
assert_equal "timestamp", column.sql_type
elsif current_adapter?(:OracleAdapter)
assert_equal "TIMESTAMP(6)", column.sql_type
else
assert_equal connection.type_to_sql("datetime(6)"), column.sql_type
end
end
def test_change_column_quotes_column_names
connection.create_table :testings do |t|
t.column :select, :string
end
connection.change_column :testings, :select, :string, limit: 10
# Oracle needs primary key value from sequence
if current_adapter?(:OracleAdapter)
connection.execute "insert into testings (id, #{connection.quote_column_name('select')}) values (testings_seq.nextval, '7 chars')"
else
connection.execute "insert into testings (#{connection.quote_column_name('select')}) values ('7 chars')"
end
end
def test_keeping_default_and_notnull_constraints_on_change
connection.create_table :testings do |t|
t.column :title, :string
end
person_klass = Class.new(ActiveRecord::Base)
person_klass.table_name = "testings"
person_klass.connection.add_column "testings", "wealth", :integer, null: false, default: 99
person_klass.reset_column_information
assert_equal 99, person_klass.column_defaults["wealth"]
assert_equal false, person_klass.columns_hash["wealth"].null
# Oracle needs primary key value from sequence
if current_adapter?(:OracleAdapter)
assert_nothing_raised { person_klass.connection.execute("insert into testings (id, title) values (testings_seq.nextval, 'tester')") }
else
assert_nothing_raised { person_klass.connection.execute("insert into testings (title) values ('tester')") }
end
# change column default to see that column doesn't lose its not null definition
person_klass.connection.change_column_default "testings", "wealth", 100
person_klass.reset_column_information
assert_equal 100, person_klass.column_defaults["wealth"]
assert_equal false, person_klass.columns_hash["wealth"].null
# rename column to see that column doesn't lose its not null and/or default definition
person_klass.connection.rename_column "testings", "wealth", "money"
person_klass.reset_column_information
assert_nil person_klass.columns_hash["wealth"]
assert_equal 100, person_klass.column_defaults["money"]
assert_equal false, person_klass.columns_hash["money"].null
# change column
person_klass.connection.change_column "testings", "money", :integer, null: false, default: 1000
person_klass.reset_column_information
assert_equal 1000, person_klass.column_defaults["money"]
assert_equal false, person_klass.columns_hash["money"].null
# change column, make it nullable and clear default
person_klass.connection.change_column "testings", "money", :integer, null: true, default: nil
person_klass.reset_column_information
assert_nil person_klass.columns_hash["money"].default
assert_equal true, person_klass.columns_hash["money"].null
# change_column_null, make it not nullable and set null values to a default value
person_klass.connection.execute("UPDATE testings SET money = NULL")
person_klass.connection.change_column_null "testings", "money", false, 2000
person_klass.reset_column_information
assert_nil person_klass.columns_hash["money"].default
assert_equal false, person_klass.columns_hash["money"].null
assert_equal 2000, connection.select_values("SELECT money FROM testings").first.to_i
end
def test_change_column_null
testing_table_with_only_foo_attribute do
notnull_migration = Class.new(ActiveRecord::Migration::Current) do
def change
change_column_null :testings, :foo, false
end
end
notnull_migration.new.suppress_messages do
notnull_migration.migrate(:up)
assert_equal false, connection.columns(:testings).find { |c| c.name == "foo" }.null
notnull_migration.migrate(:down)
assert connection.columns(:testings).find { |c| c.name == "foo" }.null
end
end
end
def test_column_exists
connection.create_table :testings do |t|
t.column :foo, :string
end
assert connection.column_exists?(:testings, :foo)
assert_not connection.column_exists?(:testings, :bar)
end
def test_column_exists_with_type
connection.create_table :testings do |t|
t.column :foo, :string
t.column :bar, :decimal, precision: 8, scale: 2
end
assert connection.column_exists?(:testings, :foo, :string)
assert_not connection.column_exists?(:testings, :foo, :integer)
assert connection.column_exists?(:testings, :bar, :decimal)
assert_not connection.column_exists?(:testings, :bar, :integer)
end
def test_column_exists_with_definition
connection.create_table :testings do |t|
t.column :foo, :string, limit: 100
t.column :bar, :decimal, precision: 8, scale: 2
t.column :taggable_id, :integer, null: false
t.column :taggable_type, :string, default: "Photo"
end
assert connection.column_exists?(:testings, :foo, :string, limit: 100)
assert_not connection.column_exists?(:testings, :foo, :string, limit: nil)
assert connection.column_exists?(:testings, :bar, :decimal, precision: 8, scale: 2)
assert_not connection.column_exists?(:testings, :bar, :decimal, precision: nil, scale: nil)
assert connection.column_exists?(:testings, :taggable_id, :integer, null: false)
assert_not connection.column_exists?(:testings, :taggable_id, :integer, null: true)
assert connection.column_exists?(:testings, :taggable_type, :string, default: "Photo")
assert_not connection.column_exists?(:testings, :taggable_type, :string, default: nil)
end
def test_column_exists_on_table_with_no_options_parameter_supplied
connection.create_table :testings do |t|
t.string :foo
end
connection.change_table :testings do |t|
assert t.column_exists?(:foo)
assert_not (t.column_exists?(:bar))
end
end
def test_drop_table_if_exists
connection.create_table(:testings)
assert connection.table_exists?(:testings)
connection.drop_table(:testings, if_exists: true)
assert_not connection.table_exists?(:testings)
end
def test_drop_table_if_exists_nothing_raised
assert_nothing_raised { connection.drop_table(:nonexistent, if_exists: true) }
end
private
def testing_table_with_only_foo_attribute
connection.create_table :testings, id: false do |t|
t.column :foo, :string
end
yield
end
end
if ActiveRecord::Base.connection.supports_foreign_keys?
class ChangeSchemaWithDependentObjectsTest < ActiveRecord::TestCase
self.use_transactional_tests = false
setup do
@connection = ActiveRecord::Base.connection
@connection.create_table :trains
@connection.create_table(:wagons) { |t| t.references :train }
@connection.add_foreign_key :wagons, :trains
end
teardown do
[:wagons, :trains].each do |table|
@connection.drop_table table, if_exists: true
end
end
def test_create_table_with_force_cascade_drops_dependent_objects
if current_adapter?(:Mysql2Adapter)
skip "MySQL > 5.5 does not drop dependent objects with DROP TABLE CASCADE"
elsif current_adapter?(:SQLite3Adapter)
skip "SQLite3 does not support DROP TABLE CASCADE syntax"
end
# can't re-create table referenced by foreign key
assert_raises(ActiveRecord::StatementInvalid) do
@connection.create_table :trains, force: true
end
# can recreate referenced table with force: :cascade
@connection.create_table :trains, force: :cascade
assert_equal [], @connection.foreign_keys(:wagons)
end
end
end
end
end