Use better assertion methods for testing

[#4645 state:resolved]

Signed-off-by: José Valim <jose.valim@gmail.com>

actionmailer/test/base_test.rb

@@ -491,8 +491,8 @@ def give_a_greeting
 
   # Class level API with method missing
   test "should respond to action methods" do
-    assert BaseMailer.respond_to?(:welcome)
-    assert BaseMailer.respond_to?(:implicit_multipart)
+    assert_respond_to BaseMailer, :welcome
+    assert_respond_to BaseMailer, :implicit_multipart
     assert !BaseMailer.respond_to?(:mail)
     assert !BaseMailer.respond_to?(:headers)
   end

actionmailer/test/old_base/asset_host_test.rb

@@ -26,7 +26,7 @@ def teardown
 
   def test_asset_host_as_string
     mail = AssetHostMailer.email_with_asset
-    assert_equal "<img alt=\"Somelogo\" src=\"http://www.example.com/images/somelogo.png\" />", mail.body.to_s.strip
+    assert_equal %Q{<img alt="Somelogo" src="http://www.example.com/images/somelogo.png" />}, mail.body.to_s.strip
   end
 
   def test_asset_host_as_one_arguement_proc
@@ -38,7 +38,7 @@ def test_asset_host_as_one_arguement_proc
       end
     }
     mail = AssetHostMailer.email_with_asset
-    assert_equal "<img alt=\"Somelogo\" src=\"http://images.example.com/images/somelogo.png\" />", mail.body.to_s.strip
+    assert_equal %Q{<img alt="Somelogo" src="http://images.example.com/images/somelogo.png" />}, mail.body.to_s.strip
   end
 
   def test_asset_host_as_two_arguement_proc
@@ -51,6 +51,6 @@ def test_asset_host_as_two_arguement_proc
     }
     mail = nil
     assert_nothing_raised { mail = AssetHostMailer.email_with_asset }
-    assert_equal "<img alt=\"Somelogo\" src=\"http://www.example.com/images/somelogo.png\" />", mail.body.to_s.strip
+    assert_equal %Q{<img alt="Somelogo" src="http://www.example.com/images/somelogo.png" />}, mail.body.to_s.strip
   end
-end
+end

actionmailer/test/old_base/mail_render_test.rb

@@ -117,7 +117,7 @@ def test_file_template
 
   def test_rxml_template
     mail = RenderMailer.rxml_template.deliver
-    assert_equal "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<test/>", mail.body.to_s.strip
+    assert_equal %(<?xml version="1.0" encoding="UTF-8"?>\n<test/>), mail.body.to_s.strip
   end
 
   def test_included_subtemplate

actionmailer/test/old_base/mail_service_test.rb

@@ -281,23 +281,23 @@ def headers_with_nonalpha_chars(recipient)
     from         "One: Two <test@example.com>"
     cc           "Three: Four <test@example.com>"
     bcc          "Five: Six <test@example.com>"
-    body       "testing"
+    body         "testing"
   end
 
   def custom_content_type_attributes
     recipients   "no.one@nowhere.test"
     subject      "custom content types"
     from         "some.one@somewhere.test"
     content_type "text/plain; format=flowed"
-    body       "testing"
+    body         "testing"
   end
 
   def return_path
     recipients   "no.one@nowhere.test"
     subject      "return path test"
     from         "some.one@somewhere.test"
     headers["return-path"] = "another@somewhere.test"
-    body       "testing"
+    body         "testing"
   end
 
   def subject_with_i18n(recipient)
@@ -417,7 +417,7 @@ def test_signed_up
   end
 
   def test_custom_template
-    expected = new_mail
+    expected         = new_mail
     expected.to      = @recipient
     expected.subject = "[Signed up] Welcome #{@recipient}"
     expected.body    = "Hello there, \n\nMr. #{@recipient}"
@@ -436,7 +436,7 @@ def test_custom_templating_extension
     assert ActionView::Template.template_handler_extensions.include?("haml"), "haml extension was not registered"
 
     # N.b., custom_templating_extension.text.plain.haml is expected to be in fixtures/test_mailer directory
-    expected = new_mail
+    expected         = new_mail
     expected.to      = @recipient
     expected.subject = "[Signed up] Welcome #{@recipient}"
     expected.body    = "Hello there, \n\nMr. #{@recipient}"
@@ -453,7 +453,7 @@ def test_custom_templating_extension
   end
 
   def test_cancelled_account
-    expected = new_mail
+    expected         = new_mail
     expected.to      = @recipient
     expected.subject = "[Cancelled] Goodbye #{@recipient}"
     expected.body    = "Goodbye, Mr. #{@recipient}"
@@ -477,7 +477,7 @@ def test_cancelled_account
   end
 
   def test_cc_bcc
-    expected = new_mail
+    expected         = new_mail
     expected.to      = @recipient
     expected.subject = "testing bcc/cc"
     expected.body    = "Nothing to see here."
@@ -602,7 +602,7 @@ def test_iso_charset
 
   def test_unencoded_subject
     TestMailer.delivery_method = :test
-    expected = new_mail
+    expected         = new_mail
     expected.to      = @recipient
     expected.subject = "testing unencoded subject"
     expected.body    = "Nothing to see here."
@@ -1151,15 +1151,15 @@ def teardown
   end
 
   def test_should_respond_to_new
-    assert RespondToMailer.respond_to?(:new)
+    assert_respond_to RespondToMailer, :new
   end
 
   def test_should_respond_to_create_with_template_suffix
-    assert RespondToMailer.respond_to?(:create_any_old_template)
+    assert_respond_to RespondToMailer, :create_any_old_template
   end
 
   def test_should_respond_to_deliver_with_template_suffix
-    assert RespondToMailer.respond_to?(:deliver_any_old_template)
+    assert_respond_to RespondToMailer, :deliver_any_old_template
   end
 
   def test_should_not_respond_to_new_with_template_suffix

actionmailer/test/test_helper_test.rb

@@ -18,7 +18,7 @@ def test_setup_sets_right_action_mailer_options
   end
 
   def test_setup_creates_the_expected_mailer
-    assert @expected.is_a?(Mail::Message)
+    assert_kind_of Mail::Message, @expected
     assert_equal "1.0", @expected.mime_version
     assert_equal "text/plain", @expected.mime_type
   end
@@ -121,7 +121,7 @@ def setup
   end
 
   def test_setup_shouldnt_conflict_with_mailer_setup
-    assert @expected.is_a?(Mail::Message)
+    assert_kind_of Mail::Message, @expected
     assert_equal 'a value', @test_var
   end
 end

actionpack/test/controller/filters_test.rb

@@ -515,7 +515,7 @@ def test_running_anomolous_yet_valid_condition_filters
     assert assigns["ran_proc_filter2"]
 
     test_process(AnomolousYetValidConditionController, "show_without_filter")
-    assert_equal nil, assigns["ran_filter"]
+    assert_nil assigns["ran_filter"]
     assert !assigns["ran_class_filter"]
     assert !assigns["ran_proc_filter1"]
     assert !assigns["ran_proc_filter2"]
@@ -530,16 +530,16 @@ def test_running_collection_condition_filters
     test_process(ConditionalCollectionFilterController)
     assert_equal %w( ensure_login ), assigns["ran_filter"]
     test_process(ConditionalCollectionFilterController, "show_without_filter")
-    assert_equal nil, assigns["ran_filter"]
+    assert_nil assigns["ran_filter"]
     test_process(ConditionalCollectionFilterController, "another_action")
-    assert_equal nil, assigns["ran_filter"]
+    assert_nil assigns["ran_filter"]
   end
 
   def test_running_only_condition_filters
     test_process(OnlyConditionSymController)
     assert_equal %w( ensure_login ), assigns["ran_filter"]
     test_process(OnlyConditionSymController, "show_without_filter")
-    assert_equal nil, assigns["ran_filter"]
+    assert_nil assigns["ran_filter"]
 
     test_process(OnlyConditionProcController)
     assert assigns["ran_proc_filter"]
@@ -556,7 +556,7 @@ def test_running_except_condition_filters
     test_process(ExceptConditionSymController)
     assert_equal %w( ensure_login ), assigns["ran_filter"]
     test_process(ExceptConditionSymController, "show_without_filter")
-    assert_equal nil, assigns["ran_filter"]
+    assert_nil assigns["ran_filter"]
 
     test_process(ExceptConditionProcController)
     assert assigns["ran_proc_filter"]
@@ -573,7 +573,7 @@ def test_running_before_and_after_condition_filters
     test_process(BeforeAndAfterConditionController)
     assert_equal %w( ensure_login clean_up_tmp), assigns["ran_filter"]
     test_process(BeforeAndAfterConditionController, "show_without_filter")
-    assert_equal nil, assigns["ran_filter"]
+    assert_nil assigns["ran_filter"]
   end
 
   def test_around_filter
@@ -674,7 +674,7 @@ def test_condition_skipping_of_filters_when_siblings_also_have_conditions
 
   def test_changing_the_requirements
     test_process(ChangingTheRequirementsController, "go_wild")
-    assert_equal nil, assigns['ran_filter']
+    assert_nil assigns['ran_filter']
   end
 
   def test_a_rescuing_around_filter

actionpack/test/controller/new_base/bare_metal_test.rb

@@ -18,10 +18,10 @@ class BareTest < ActiveSupport::TestCase
         string << part
       end
 
-      assert headers.is_a?(Hash), "Headers must be a Hash"
+      assert_kind_of Hash, headers, "Headers must be a Hash"
       assert headers["Content-Type"], "Content-Type must exist"
 
       assert_equal "Hello world", string
     end
   end
-end
+end

activemodel/test/cases/attribute_methods_test.rb

@@ -31,7 +31,7 @@ class AttributeMethodsTest < ActiveModel::TestCase
     ModelWithAttributes.define_attribute_methods([:foo])
 
     assert ModelWithAttributes.attribute_methods_generated?
-    assert ModelWithAttributes.new.respond_to?(:foo)
+    assert_respond_to ModelWithAttributes.new, :foo
     assert_equal "value of foo", ModelWithAttributes.new.foo
   end
 

activemodel/test/cases/callbacks_test.rb

@@ -65,6 +65,6 @@ def create
   test "only selects which types of callbacks should be created" do
     assert !ModelCallbacks.respond_to?(:before_initialize)
     assert !ModelCallbacks.respond_to?(:around_initialize)
-    assert ModelCallbacks.respond_to?(:after_initialize)
+    assert_respond_to ModelCallbacks, :after_initialize
   end
 end

activemodel/test/cases/dirty_test.rb

@@ -22,8 +22,8 @@ def name=(val)
   test "changes accessible through both strings and symbols" do
     model = DirtyModel.new
     model.name = "David"
-    assert !model.changes[:name].nil?
-    assert !model.changes['name'].nil?
+    assert_not_nil model.changes[:name]
+    assert_not_nil model.changes['name']
   end
 
 end

activemodel/test/cases/serializeration/xml_serialization_test.rb

@@ -69,7 +69,7 @@ def setup
 
   test "should allow skipped types" do
     @xml = @contact.to_xml :skip_types => true
-    assert %r{<age>25</age>}.match(@xml)
+    assert_match %r{<age>25</age>}, @xml
   end
 
   test "should include yielded additions" do

activerecord/test/cases/aggregations_test.rb

@@ -58,36 +58,36 @@ def test_reloaded_instance_refreshes_aggregations
   end
 
   def test_gps_equality
-    assert GpsLocation.new('39x110') == GpsLocation.new('39x110')
+    assert_equal GpsLocation.new('39x110'), GpsLocation.new('39x110')
   end
 
   def test_gps_inequality
-    assert GpsLocation.new('39x110') != GpsLocation.new('39x111')
+    assert_not_equal GpsLocation.new('39x110'), GpsLocation.new('39x111')
   end
 
   def test_allow_nil_gps_is_nil
-    assert_equal nil, customers(:zaphod).gps_location
+    assert_nil customers(:zaphod).gps_location
   end
 
   def test_allow_nil_gps_set_to_nil
     customers(:david).gps_location = nil
     customers(:david).save
     customers(:david).reload
-    assert_equal nil, customers(:david).gps_location
+    assert_nil customers(:david).gps_location
   end
 
   def test_allow_nil_set_address_attributes_to_nil
     customers(:zaphod).address = nil
-    assert_equal nil, customers(:zaphod).attributes[:address_street]
-    assert_equal nil, customers(:zaphod).attributes[:address_city]
-    assert_equal nil, customers(:zaphod).attributes[:address_country]
+    assert_nil customers(:zaphod).attributes[:address_street]
+    assert_nil customers(:zaphod).attributes[:address_city]
+    assert_nil customers(:zaphod).attributes[:address_country]
   end
 
   def test_allow_nil_address_set_to_nil
     customers(:zaphod).address = nil
     customers(:zaphod).save
     customers(:zaphod).reload
-    assert_equal nil, customers(:zaphod).address
+    assert_nil customers(:zaphod).address
   end
 
   def test_nil_raises_error_when_allow_nil_is_false
@@ -104,9 +104,9 @@ def test_allow_nil_address_loaded_when_only_some_attributes_are_nil
 
   def test_nil_assignment_results_in_nil
     customers(:david).gps_location = GpsLocation.new('39x111')
-    assert_not_equal nil, customers(:david).gps_location
+    assert_not_nil customers(:david).gps_location
     customers(:david).gps_location = nil
-    assert_equal nil, customers(:david).gps_location
+    assert_nil customers(:david).gps_location
   end
 
   def test_custom_constructor

activerecord/test/cases/associations/belongs_to_associations_test.rb

@@ -403,7 +403,7 @@ def test_polymorphic_assignment_updates_foreign_id_field_for_new_and_saved_recor
     assert_equal saved_member.id, sponsor.sponsorable_id
 
     sponsor.sponsorable = new_member
-    assert_equal nil, sponsor.sponsorable_id
+    assert_nil sponsor.sponsorable_id
   end
 
   def test_polymorphic_assignment_with_primary_key_updates_foreign_id_field_for_new_and_saved_records
@@ -415,7 +415,7 @@ def test_polymorphic_assignment_with_primary_key_updates_foreign_id_field_for_ne
     assert_equal saved_writer.name, essay.writer_id
 
     essay.writer = new_writer
-    assert_equal nil, essay.writer_id
+    assert_nil essay.writer_id
   end
 
   def test_belongs_to_proxy_should_not_respond_to_private_methods

activerecord/test/cases/associations/eager_load_includes_full_sti_class_test.rb

@@ -29,7 +29,7 @@ def test_class_names
 
     ActiveRecord::Base.store_full_sti_class = true
     post = Namespaced::Post.find_by_title( 'Great stuff', :include => :tagging )
-    assert_equal 'Tagging', post.tagging.class.name
+    assert_instance_of Tagging, post.tagging
   ensure
     ActiveRecord::Base.store_full_sti_class = old
   end

activerecord/test/cases/associations/eager_test.rb

@@ -110,7 +110,7 @@ def test_finding_with_includes_on_has_many_association_with_same_include_include
     author = assert_queries(3) { Author.find(author_id, :include => {:posts_with_comments => :comments}) } # find the author, then find the posts, then find the comments
     author.posts_with_comments.each do |post_with_comments|
       assert_equal post_with_comments.comments.length, post_with_comments.comments.count
-      assert_equal nil, post_with_comments.comments.uniq!
+      assert_nil post_with_comments.comments.uniq!
     end
   end
 

activerecord/test/cases/associations/has_many_associations_test.rb

@@ -175,14 +175,7 @@ def test_belongs_to_sanity
     c = Client.new
     assert_nil c.firm
 
-    if c.firm
-      assert false, "belongs_to failed if check"
-    end
-
-    unless c.firm
-    else
-      assert false,  "belongs_to failed unless check"
-    end
+    flunk "belongs_to failed if check" if c.firm
   end
 
   def test_find_ids
@@ -620,7 +613,7 @@ def test_clearing_an_exclusively_dependent_association_collection
     assert_equal [], Client.destroyed_client_ids[firm.id]
 
     # Should be destroyed since the association is exclusively dependent.
-    assert Client.find_by_id(client_id).nil?
+    assert_nil Client.find_by_id(client_id)
   end
 
   def test_dependent_association_respects_optional_conditions_on_delete
@@ -669,7 +662,7 @@ def test_delete_all_association_with_primary_key_deletes_correct_records
     old_record = firm.clients_using_primary_key_with_delete_all.first
     firm = Firm.find(:first)
     firm.destroy
-    assert Client.find_by_id(old_record.id).nil?
+    assert_nil Client.find_by_id(old_record.id)
   end
 
   def test_creation_respects_hash_condition