serializer_for Array

test/serializers/configuration_test.rb

@@ -0,0 +1,11 @@
+require 'test_helper'
+
+module ActiveModel
+  class Serializer
+    class ConfigurationTest < Minitest::Test
+      def test_array_serializer
+        assert_equal ActiveModel::Serializer::ArraySerializer, ActiveModel::Serializer.config.array_serializer
+      end
+    end
+  end
+end

test/serializers/serializer_for_test.rb

@@ -0,0 +1,28 @@
+require 'test_helper'
+
+module ActiveModel
+  class Serializer
+    class SerializerForTest < Minitest::Test
+      def setup
+        @array = [1, 2, 3]
+        @previous_array_serializer = ActiveModel::Serializer.config.array_serializer
+      end
+
+      def teardown
+        ActiveModel::Serializer.config.array_serializer = @previous_array_serializer
+      end
+
+      def test_serializer_for_array
+        serializer = ActiveModel::Serializer.serializer_for(@array)
+        assert_equal ActiveModel::Serializer.config.array_serializer, serializer
+      end
+
+      def test_overwritten_serializer_for_array
+        new_array_serializer = Class.new
+        ActiveModel::Serializer.config.array_serializer = new_array_serializer
+        serializer = ActiveModel::Serializer.serializer_for(@array)
+        assert_equal new_array_serializer, serializer
+      end
+    end
+  end
+end