Update Plugin-Tests.md
diff --git a/docs/ecosystem/testing/Plugin-Tests.md b/docs/ecosystem/testing/Plugin-Tests.md
index d862226..4f746ea 100644
--- a/docs/ecosystem/testing/Plugin-Tests.md
+++ b/docs/ecosystem/testing/Plugin-Tests.md
@@ -128,6 +128,7 @@
#### Mocks
+
Some packages (like `google_maps_flutter_web`) contain `.mocks.dart` files alongside the test files that use them.
Mock files are [generated by `package:mockito`](https://pub.dev/packages/mockito#lets-create-mocks). The contents of mock files can change with how the mocks are used within the tests, in addition to actual changes in the APIs they're mocking.
