1 files changed, 282 insertions, 0 deletions
diff --git a/activemodel/test/cases/naming_test.rb b/activemodel/test/cases/naming_test.rb
new file mode 100644
index 0000000000..4693da434c
--- /dev/null
+++ b/activemodel/test/cases/naming_test.rb
@@ -0,0 +1,282 @@
+# frozen_string_literal: true
+
+require "cases/helper"
+require "models/contact"
+require "models/sheep"
+require "models/track_back"
+require "models/blog_post"
+
+class NamingTest < ActiveModel::TestCase
+  def setup
+    @model_name = ActiveModel::Name.new(Post::TrackBack)
+  end
+
+  def test_singular
+    assert_equal "post_track_back", @model_name.singular
+  end
+
+  def test_plural
+    assert_equal "post_track_backs", @model_name.plural
+  end
+
+  def test_element
+    assert_equal "track_back", @model_name.element
+  end
+
+  def test_collection
+    assert_equal "post/track_backs", @model_name.collection
+  end
+
+  def test_human
+    assert_equal "Track back", @model_name.human
+  end
+
+  def test_route_key
+    assert_equal "post_track_backs", @model_name.route_key
+  end
+
+  def test_param_key
+    assert_equal "post_track_back", @model_name.param_key
+  end
+
+  def test_i18n_key
+    assert_equal :"post/track_back", @model_name.i18n_key
+  end
+end
+
+class NamingWithNamespacedModelInIsolatedNamespaceTest < ActiveModel::TestCase
+  def setup
+    @model_name = ActiveModel::Name.new(Blog::Post, Blog)
+  end
+
+  def test_singular
+    assert_equal "blog_post", @model_name.singular
+  end
+
+  def test_plural
+    assert_equal "blog_posts", @model_name.plural
+  end
+
+  def test_element
+    assert_equal "post", @model_name.element
+  end
+
+  def test_collection
+    assert_equal "blog/posts", @model_name.collection
+  end
+
+  def test_human
+    assert_equal "Post", @model_name.human
+  end
+
+  def test_route_key
+    assert_equal "posts", @model_name.route_key
+  end
+
+  def test_param_key
+    assert_equal "post", @model_name.param_key
+  end
+
+  def test_i18n_key
+    assert_equal :"blog/post", @model_name.i18n_key
+  end
+end
+
+class NamingWithNamespacedModelInSharedNamespaceTest < ActiveModel::TestCase
+  def setup
+    @model_name = ActiveModel::Name.new(Blog::Post)
+  end
+
+  def test_singular
+    assert_equal "blog_post", @model_name.singular
+  end
+
+  def test_plural
+    assert_equal "blog_posts", @model_name.plural
+  end
+
+  def test_element
+    assert_equal "post", @model_name.element
+  end
+
+  def test_collection
+    assert_equal "blog/posts", @model_name.collection
+  end
+
+  def test_human
+    assert_equal "Post", @model_name.human
+  end
+
+  def test_route_key
+    assert_equal "blog_posts", @model_name.route_key
+  end
+
+  def test_param_key
+    assert_equal "blog_post", @model_name.param_key
+  end
+
+  def test_i18n_key
+    assert_equal :"blog/post", @model_name.i18n_key
+  end
+end
+
+class NamingWithSuppliedModelNameTest < ActiveModel::TestCase
+  def setup
+    @model_name = ActiveModel::Name.new(Blog::Post, nil, "Article")
+  end
+
+  def test_singular
+    assert_equal "article", @model_name.singular
+  end
+
+  def test_plural
+    assert_equal "articles", @model_name.plural
+  end
+
+  def test_element
+    assert_equal "article", @model_name.element
+  end
+
+  def test_collection
+    assert_equal "articles", @model_name.collection
+  end
+
+  def test_human
+    assert_equal "Article", @model_name.human
+  end
+
+  def test_route_key
+    assert_equal "articles", @model_name.route_key
+  end
+
+  def test_param_key
+    assert_equal "article", @model_name.param_key
+  end
+
+  def test_i18n_key
+    assert_equal :"article", @model_name.i18n_key
+  end
+end
+
+class NamingUsingRelativeModelNameTest < ActiveModel::TestCase
+  def setup
+    @model_name = Blog::Post.model_name
+  end
+
+  def test_singular
+    assert_equal "blog_post", @model_name.singular
+  end
+
+  def test_plural
+    assert_equal "blog_posts", @model_name.plural
+  end
+
+  def test_element
+    assert_equal "post", @model_name.element
+  end
+
+  def test_collection
+    assert_equal "blog/posts", @model_name.collection
+  end
+
+  def test_human
+    assert_equal "Post", @model_name.human
+  end
+
+  def test_route_key
+    assert_equal "posts", @model_name.route_key
+  end
+
+  def test_param_key
+    assert_equal "post", @model_name.param_key
+  end
+
+  def test_i18n_key
+    assert_equal :"blog/post", @model_name.i18n_key
+  end
+end
+
+class NamingHelpersTest < ActiveModel::TestCase
+  def setup
+    @klass  = Contact
+    @record = @klass.new
+    @singular = "contact"
+    @plural = "contacts"
+    @uncountable = Sheep
+    @singular_route_key = "contact"
+    @route_key = "contacts"
+    @param_key = "contact"
+  end
+
+  def test_to_model_called_on_record
+    assert_equal "post_named_track_backs", plural(Post::TrackBack.new)
+  end
+
+  def test_singular
+    assert_equal @singular, singular(@record)
+  end
+
+  def test_singular_for_class
+    assert_equal @singular, singular(@klass)
+  end
+
+  def test_plural
+    assert_equal @plural, plural(@record)
+  end
+
+  def test_plural_for_class
+    assert_equal @plural, plural(@klass)
+  end
+
+  def test_route_key
+    assert_equal @route_key, route_key(@record)
+    assert_equal @singular_route_key, singular_route_key(@record)
+  end
+
+  def test_route_key_for_class
+    assert_equal @route_key, route_key(@klass)
+    assert_equal @singular_route_key, singular_route_key(@klass)
+  end
+
+  def test_param_key
+    assert_equal @param_key, param_key(@record)
+  end
+
+  def test_param_key_for_class
+    assert_equal @param_key, param_key(@klass)
+  end
+
+  def test_uncountable
+    assert uncountable?(@uncountable), "Expected 'sheep' to be uncountable"
+    assert_not uncountable?(@klass), "Expected 'contact' to be countable"
+  end
+
+  def test_uncountable_route_key
+    assert_equal "sheep", singular_route_key(@uncountable)
+    assert_equal "sheep_index", route_key(@uncountable)
+  end
+
+  private
+    def method_missing(method, *args)
+      ActiveModel::Naming.send(method, *args)
+    end
+end
+
+class NameWithAnonymousClassTest < ActiveModel::TestCase
+  def test_anonymous_class_without_name_argument
+    assert_raises(ArgumentError) do
+      ActiveModel::Name.new(Class.new)
+    end
+  end
+
+  def test_anonymous_class_with_name_argument
+    model_name = ActiveModel::Name.new(Class.new, nil, "Anonymous")
+    assert_equal "Anonymous", model_name
+  end
+end
+
+class NamingMethodDelegationTest < ActiveModel::TestCase
+  def test_model_name
+    assert_equal Blog::Post.model_name, Blog::Post.new.model_name
+  end
+end