require "cases/helper" require "models/topic" class ConditionalValidationTest < ActiveModel::TestCase def teardown Topic.clear_validators! end def test_if_validation_using_method_true # When the method returns true Topic.validates_length_of(:title, maximum: 5, too_long: "hoo %{count}", if: :condition_is_true) t = Topic.new("title" => "uhohuhoh", "content" => "whatever") assert t.invalid? assert t.errors[:title].any? assert_equal ["hoo 5"], t.errors["title"] end def test_unless_validation_using_method_true # When the method returns true Topic.validates_length_of(:title, maximum: 5, too_long: "hoo %{count}", unless: :condition_is_true) t = Topic.new("title" => "uhohuhoh", "content" => "whatever") assert t.valid? assert_empty t.errors[:title] end def test_if_validation_using_method_false # When the method returns false Topic.validates_length_of(:title, maximum: 5, too_long: "hoo %{count}", if: :condition_is_true_but_its_not) t = Topic.new("title" => "uhohuhoh", "content" => "whatever") assert t.valid? assert_empty t.errors[:title] end def test_unless_validation_using_method_false # When the method returns false Topic.validates_length_of(:title, maximum: 5, too_long: "hoo %{count}", unless: :condition_is_true_but_its_not) t = Topic.new("title" => "uhohuhoh", "content" => "whatever") assert t.invalid? assert t.errors[:title].any? assert_equal ["hoo 5"], t.errors["title"] end def test_if_validation_using_string_true # When the evaluated string returns true Topic.validates_length_of(:title, maximum: 5, too_long: "hoo %{count}", if: "a = 1; a == 1") t = Topic.new("title" => "uhohuhoh", "content" => "whatever") assert t.invalid? assert t.errors[:title].any? assert_equal ["hoo 5"], t.errors["title"] end def test_unless_validation_using_string_true # When the evaluated string returns true Topic.validates_length_of(:title, maximum: 5, too_long: "hoo %{count}", unless: "a = 1; a == 1") t = Topic.new("title" => "uhohuhoh", "content" => "whatever") assert t.valid? assert_empty t.errors[:title] end def test_if_validation_using_string_false # When the evaluated string returns false Topic.validates_length_of(:title, maximum: 5, too_long: "hoo %{count}", if: "false") t = Topic.new("title" => "uhohuhoh", "content" => "whatever") assert t.valid? assert_empty t.errors[:title] end def test_unless_validation_using_string_false # When the evaluated string returns false Topic.validates_length_of(:title, maximum: 5, too_long: "hoo %{count}", unless: "false") t = Topic.new("title" => "uhohuhoh", "content" => "whatever") assert t.invalid? assert t.errors[:title].any? assert_equal ["hoo 5"], t.errors["title"] end def test_if_validation_using_block_true # When the block returns true Topic.validates_length_of(:title, maximum: 5, too_long: "hoo %{count}", if: Proc.new { |r| r.content.size > 4 }) t = Topic.new("title" => "uhohuhoh", "content" => "whatever") assert t.invalid? assert t.errors[:title].any? assert_equal ["hoo 5"], t.errors["title"] end def test_unless_validation_using_block_true # When the block returns true Topic.validates_length_of(:title, maximum: 5, too_long: "hoo %{count}", unless: Proc.new { |r| r.content.size > 4 }) t = Topic.new("title" => "uhohuhoh", "content" => "whatever") assert t.valid? assert_empty t.errors[:title] end def test_if_validation_using_block_false # When the block returns false Topic.validates_length_of(:title, maximum: 5, too_long: "hoo %{count}", if: Proc.new { |r| r.title != "uhohuhoh" }) t = Topic.new("title" => "uhohuhoh", "content" => "whatever") assert t.valid? assert_empty t.errors[:title] end def test_unless_validation_using_block_false # When the block returns false Topic.validates_length_of(:title, maximum: 5, too_long: "hoo %{count}", unless: Proc.new { |r| r.title != "uhohuhoh" }) t = Topic.new("title" => "uhohuhoh", "content" => "whatever") assert t.invalid? assert t.errors[:title].any? assert_equal ["hoo 5"], t.errors["title"] end # previous implementation of validates_presence_of eval'd the # string with the wrong binding, this regression test is to # ensure that it works correctly def test_validation_with_if_as_string Topic.validates_presence_of(:title) Topic.validates_presence_of(:author_name, if: "title.to_s.match('important')") t = Topic.new assert t.invalid?, "A topic without a title should not be valid" assert_empty t.errors[:author_name], "A topic without an 'important' title should not require an author" t.title = "Just a title" assert t.valid?, "A topic with a basic title should be valid" t.title = "A very important title" assert t.invalid?, "A topic with an important title, but without an author, should not be valid" assert t.errors[:author_name].any?, "A topic with an 'important' title should require an author" t.author_name = "Hubert J. Farnsworth" assert t.valid?, "A topic with an important title and author should be valid" end end