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require "cases/helper"
module ActiveRecord
class Migration
class CommandRecorderTest < ActiveRecord::TestCase
def setup
@recorder = CommandRecorder.new
end
def test_unknown_commands_raise_exception
@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_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_rename_index
@recorder.record :rename_index, [:old, :new]
rename = @recorder.inverse.first
assert_equal [:rename_index, [: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
end
end
end
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