Add an additional test for nested HAML/ERB/components

Author: camertron

test/sandbox/app/components/partial_haml_component.html.haml

@@ -0,0 +1,2 @@
+%span.bar
+  = render "haml_partial"

test/sandbox/app/components/partial_haml_component.rb

@@ -0,0 +1,4 @@
+# frozen_string_literal: true
+
+class PartialHamlComponent < ViewComponent::Base
+end

test/sandbox/app/views/integration_examples/_erb_partial.html.erb

@@ -0,0 +1,4 @@
+<article class="quux">
+  What's up!
+  <%= render HamlComponent.new(message: "It works!") %>
+</article>

test/sandbox/app/views/integration_examples/_haml_partial.html.haml

@@ -0,0 +1,3 @@
+.baz
+  = "Heyyy!"
+  = render "erb_partial"

test/sandbox/app/views/integration_examples/nested_haml.html.haml

@@ -0,0 +1,3 @@
+%p.foo
+  = "Hello, world!"
+  = render(PartialHamlComponent.new)

test/sandbox/config/routes.rb

@@ -20,4 +20,5 @@
   get :render_component, to: "integration_examples#render_component"
   get :controller_inline_render_component, to: "integration_examples#controller_inline_render_component"
   get :controller_to_string_render_component, to: "integration_examples#controller_to_string_render_component"
+  get :nested_haml, to: "integration_examples#nested_haml"
 end

test/view_component/integration_test.rb

@@ -553,6 +553,12 @@ def test_returns_404_when_preview_does_not_exist
     end
   end
 
+  def test_renders_a_mix_of_haml_and_erb
+    get "/nested_haml"
+    assert_response :success
+    assert_select "p.foo > span.bar > div.baz > article.quux > div.haml-div"
+  end
+
   def test_raises_an_error_if_the_template_is_not_present_and_the_render_with_template_method_is_used_in_the_example
     error =
       assert_raises ViewComponent::PreviewTemplateError do