diff options
Diffstat (limited to 'activesupport/test/test_case_test.rb')
-rw-r--r-- | activesupport/test/test_case_test.rb | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/activesupport/test/test_case_test.rb b/activesupport/test/test_case_test.rb index 84e4953fe2..79b75a001a 100644 --- a/activesupport/test/test_case_test.rb +++ b/activesupport/test/test_case_test.rb @@ -156,6 +156,16 @@ class AssertDifferenceTest < ActiveSupport::TestCase end end + def test_assert_changes_with_to_option_but_no_change_has_special_message + error = assert_raises Minitest::Assertion do + assert_changes "@object.num", to: 0 do + # no changes + end + end + + assert_equal "\"@object.num\" didn't change. It was already 0", error.message + end + def test_assert_changes_with_wrong_to_option assert_raises Minitest::Assertion do assert_changes "@object.num", to: 2 do @@ -218,6 +228,7 @@ class AssertDifferenceTest < ActiveSupport::TestCase def test_assert_changes_with_message error = assert_raises Minitest::Assertion do assert_changes "@object.num", "@object.num should 1", to: 1 do + @object.decrement end end |