Make new tests serializable to liquid-spec

.github/workflows/liquid.yml

@@ -22,17 +22,17 @@ jobs:
               rubyopt: "--enable-frozen-string-literal",
             }
           - { ruby: 3.4, allowed-failure: false, rubyopt: "--yjit" }
-          - { ruby: ruby-head, allowed-failure: false }
+          - { ruby: head, allowed-failure: false }
           - {
-              ruby: ruby-head,
+              ruby: head,
               allowed-failure: false,
               rubyopt: "--enable-frozen-string-literal",
             }
-          - { ruby: ruby-head, allowed-failure: false, rubyopt: "--yjit" }
+          - { ruby: head, allowed-failure: false, rubyopt: "--yjit" }
     name: Test Ruby ${{ matrix.entry.ruby }}
     steps:
       - uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
-      - uses: ruby/setup-ruby@dffc446db9ba5a0c4446edb5bca1c5c473a806c5 # v1.235.0
+      - uses: ruby/setup-ruby@a25f1e45f0e65a92fcb1e95e8847f78fb0a7197a # v1.273.0
         with:
           ruby-version: ${{ matrix.entry.ruby }}
           bundler-cache: true
@@ -46,7 +46,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
-      - uses: ruby/setup-ruby@dffc446db9ba5a0c4446edb5bca1c5c473a806c5 # v1.235.0
+      - uses: ruby/setup-ruby@a25f1e45f0e65a92fcb1e95e8847f78fb0a7197a # v1.273.0
         with:
           bundler-cache: true
       - run: bundle exec rake memory_profile:run

test/integration/hash_rendering_test.rb

@@ -88,17 +88,11 @@ def test_render_hash_with_hash_key
   end
 
   def test_rendering_hash_with_custom_to_s_method_uses_custom_to_s
-    my_hash = Class.new(Hash) do
-      def to_s
-        "kewl"
-      end
-    end.new
-
-    assert_template_result("kewl", "{{ my_hash }}", { "my_hash" => my_hash })
+    assert_template_result("kewl", "{{ my_hash }}", { "my_hash" => HashWithCustomToS.new })
   end
 
   def test_rendering_hash_without_custom_to_s_uses_default_inspect
-    my_hash = Class.new(Hash).new
+    my_hash = HashWithoutCustomToS.new
     my_hash[:foo] = :bar
 
     assert_template_result("{:foo=>:bar}", "{{ my_hash }}", { "my_hash" => my_hash })

test/integration/standard_filter_test.rb

@@ -294,13 +294,7 @@ def test_join
   end
 
   def test_join_calls_to_liquid_on_each_element
-    drop = Class.new(Liquid::Drop) do
-      def to_liquid
-        'i did it'
-      end
-    end
-
-    assert_equal('i did it, i did it', @filters.join([drop.new, drop.new], ", "))
+    assert_equal('i did it, i did it', @filters.join([CustomToLiquidDrop.new('i did it'), CustomToLiquidDrop.new('i did it')], ", "))
   end
 
   def test_sort

test/test_helper.rb

@@ -199,6 +199,26 @@ def exception
   end
 end
 
+class CustomToLiquidDrop < Liquid::Drop
+  def initialize(value)
+    @value = value
+    super()
+  end
+
+  def to_liquid
+    @value
+  end
+end
+
+class HashWithCustomToS < Hash
+  def to_s
+    "kewl"
+  end
+end
+
+class HashWithoutCustomToS < Hash
+end
+
 class StubFileSystem
   attr_reader :file_read_count