[3.x] Add a failing test for rendering a partial inside a collection rendering

Gemfile.lock

@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    view_component (3.24.0)
+    view_component (3.25.0)
       activesupport (>= 5.2.0, < 8.2)
       concurrent-ruby (~> 1)
       method_source (~> 1.0)

test/sandbox/test/collection_test.rb

@@ -22,6 +22,20 @@ def call
       end
     end
 
+    # Renders a plain partial, which routes through `ViewComponent::Base#render`
+    # and so depends on `__vc_original_view_context` being set.
+    class PartialRenderingComponent < ViewComponent::Base
+      with_collection_parameter :item
+
+      def initialize(item: nil)
+        @item = item
+      end
+
+      def call
+        render partial: "integration_examples/test_partial"
+      end
+    end
+
     def setup
       @products = [Product.new(name: "Radio clock"), Product.new(name: "Mints")]
       @collection = ProductComponent.with_collection(@products, notice: "secondhand")
@@ -46,5 +60,15 @@ def test_supports_collection_with_spacer_component
       render_inline(ProductComponent.with_collection(@products, spacer_component: SpacerComponent.new))
       assert_selector("hr", count: 1)
     end
+
+    # A collection rendered from a plain view (rather than from inside another
+    # component) never has `set_original_view_context` called on it, so its own
+    # `__vc_original_view_context` is nil. That nil must not be forwarded to the
+    # child components, or rendering a partial from one raises NoMethodError.
+    def test_supports_components_that_render_partials
+      render_inline(PartialRenderingComponent.with_collection([1, 2]))
+
+      assert_text("hello,partial world!", count: 2)
+    end
   end
 end