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require "cases/helper"
module ActiveRecord
class Migration
class CommandRecorderTest < ActiveRecord::TestCase
def setup
@recorder = CommandRecorder.new
end
def test_respond_to_delegates
recorder = CommandRecorder.new(Class.new {
def america; end
}.new)
assert recorder.respond_to?(:america)
end
def test_send_calls_super
assert_raises(NoMethodError) do
@recorder.send(:non_existing_method, :horses)
end
end
def test_send_delegates_to_record
recorder = CommandRecorder.new(Class.new {
def create_table(name); end
}.new)
assert recorder.respond_to?(:create_table), 'respond_to? create_table'
recorder.send(:create_table, :horses)
assert_equal [[:create_table, [:horses]]], recorder.commands
end
def test_unknown_commands_delegate
recorder = CommandRecorder.new(stub(:foo => 'bar'))
assert_equal 'bar', recorder.foo
end
def test_unknown_commands_raise_exception_if_they_cannot_delegate
@recorder.record :execute, ['some sql']
assert_raises(ActiveRecord::IrreversibleMigration) do
@recorder.inverse
end
end
def test_record
@recorder.record :create_table, [:system_settings]
assert_equal 1, @recorder.commands.length
end
def test_inverse
@recorder.record :create_table, [:system_settings]
assert_equal 1, @recorder.inverse.length
@recorder.record :rename_table, [:old, :new]
assert_equal 2, @recorder.inverse.length
end
def test_inverted_commands_are_reveresed
@recorder.record :create_table, [:hello]
@recorder.record :create_table, [:world]
tables = @recorder.inverse.map(&:last)
assert_equal [[:world], [:hello]], tables
end
def test_invert_create_table
@recorder.record :create_table, [:system_settings]
drop_table = @recorder.inverse.first
assert_equal [:drop_table, [:system_settings]], drop_table
end
def test_invert_create_table_with_options
@recorder.record :create_table, [:people_reminders, {:id => false}]
drop_table = @recorder.inverse.first
assert_equal [:drop_table, [:people_reminders]], drop_table
end
def test_invert_create_join_table
@recorder.record :create_join_table, [:musics, :artists]
drop_table = @recorder.inverse.first
assert_equal [:drop_table, [:artists_musics]], drop_table
end
def test_invert_create_join_table_with_table_name
@recorder.record :create_join_table, [:musics, :artists, {:table_name => :catalog}]
drop_table = @recorder.inverse.first
assert_equal [:drop_table, [:catalog]], drop_table
end
def test_invert_rename_table
@recorder.record :rename_table, [:old, :new]
rename = @recorder.inverse.first
assert_equal [:rename_table, [:new, :old]], rename
end
def test_invert_add_column
@recorder.record :add_column, [:table, :column, :type, {}]
remove = @recorder.inverse.first
assert_equal [:remove_column, [:table, :column]], remove
end
def test_invert_rename_column
@recorder.record :rename_column, [:table, :old, :new]
rename = @recorder.inverse.first
assert_equal [:rename_column, [:table, :new, :old]], rename
end
def test_invert_add_index
@recorder.record :add_index, [:table, [:one, :two], {:options => true}]
remove = @recorder.inverse.first
assert_equal [:remove_index, [:table, {:column => [:one, :two]}]], remove
end
def test_invert_add_index_with_name
@recorder.record :add_index, [:table, [:one, :two], {:name => "new_index"}]
remove = @recorder.inverse.first
assert_equal [:remove_index, [:table, {:name => "new_index"}]], remove
end
def test_invert_add_index_with_no_options
@recorder.record :add_index, [:table, [:one, :two]]
remove = @recorder.inverse.first
assert_equal [:remove_index, [:table, {:column => [:one, :two]}]], remove
end
def test_invert_rename_index
@recorder.record :rename_index, [:table, :old, :new]
rename = @recorder.inverse.first
assert_equal [:rename_index, [:table, :new, :old]], rename
end
def test_invert_add_timestamps
@recorder.record :add_timestamps, [:table]
remove = @recorder.inverse.first
assert_equal [:remove_timestamps, [:table]], remove
end
def test_invert_remove_timestamps
@recorder.record :remove_timestamps, [:table]
add = @recorder.inverse.first
assert_equal [:add_timestamps, [:table]], add
end
def test_invert_add_reference
@recorder.record :add_reference, [:table, :taggable, { polymorphic: true }]
remove = @recorder.inverse.first
assert_equal [:remove_reference, [:table, :taggable, { polymorphic: true }]], remove
end
def test_invert_add_belongs_to_alias
@recorder.record :add_belongs_to, [:table, :user]
remove = @recorder.inverse.first
assert_equal [:remove_reference, [:table, :user]], remove
end
def test_invert_remove_reference
@recorder.record :remove_reference, [:table, :taggable, { polymorphic: true }]
add = @recorder.inverse.first
assert_equal [:add_reference, [:table, :taggable, { polymorphic: true }]], add
end
def test_invert_remove_belongs_to_alias
@recorder.record :remove_belongs_to, [:table, :user]
add = @recorder.inverse.first
assert_equal [:add_reference, [:table, :user]], add
end
end
end
end
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