diff options
Diffstat (limited to 'activesupport/test/test_case_test.rb')
-rw-r--r-- | activesupport/test/test_case_test.rb | 50 |
1 files changed, 46 insertions, 4 deletions
diff --git a/activesupport/test/test_case_test.rb b/activesupport/test/test_case_test.rb index 8830c9b348..eced622137 100644 --- a/activesupport/test/test_case_test.rb +++ b/activesupport/test/test_case_test.rb @@ -87,7 +87,8 @@ class AssertDifferenceTest < ActiveSupport::TestCase def test_expression_is_evaluated_in_the_appropriate_scope silence_warnings do - local_scope = local_scope = "foo" + local_scope = "foo" + local_scope = local_scope # to suppress unused variable warning assert_difference("local_scope; @object.num") { @object.increment } end end @@ -114,6 +115,35 @@ class AssertDifferenceTest < ActiveSupport::TestCase end end + def test_hash_of_expressions + assert_difference "@object.num" => 1, "@object.num + 1" => 1 do + @object.increment + end + end + + def test_hash_of_expressions_with_message + error = assert_raises Minitest::Assertion do + assert_difference({ "@object.num" => 0 }, "Object Changed") do + @object.increment + end + end + assert_equal "Object Changed.\n\"@object.num\" didn't change by 0.\nExpected: 0\n Actual: 1", error.message + end + + def test_hash_of_lambda_expressions + assert_difference -> { @object.num } => 1, -> { @object.num + 1 } => 1 do + @object.increment + end + end + + def test_hash_of_expressions_identify_failure + assert_raises(Minitest::Assertion) do + assert_difference "@object.num" => 1, "1 + 1" => 1 do + @object.increment + end + end + end + def test_assert_changes_pass assert_changes "@object.num" do @object.increment @@ -155,6 +185,16 @@ 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 @@ -178,6 +218,7 @@ class AssertDifferenceTest < ActiveSupport::TestCase end def test_assert_changes_works_with_any_object + # Silences: instance variable @new_object not initialized. retval = silence_warnings do assert_changes :@new_object, from: nil, to: 42 do @new_object = 42 @@ -200,7 +241,7 @@ class AssertDifferenceTest < ActiveSupport::TestCase def test_assert_changes_with_to_and_case_operator token = nil - assert_changes "token", to: /\w{32}/ do + assert_changes -> { token }, to: /\w{32}/ do token = SecureRandom.hex end end @@ -208,7 +249,7 @@ class AssertDifferenceTest < ActiveSupport::TestCase def test_assert_changes_with_to_and_from_and_case_operator token = SecureRandom.hex - assert_changes "token", from: /\w{32}/, to: /\w{32}/ do + assert_changes -> { token }, from: /\w{32}/, to: /\w{32}/ do token = SecureRandom.hex end end @@ -216,6 +257,7 @@ 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 @@ -235,7 +277,7 @@ class AssertDifferenceTest < ActiveSupport::TestCase end end - assert_equal "@object.num should not change.\n\"@object.num\" did change to 1.\nExpected: 0\n Actual: 1", error.message + assert_equal "@object.num should not change.\n\"@object.num\" did change to 1", error.message end end |