Fix RUTv2 compat instances not working with modular. (#5500)

* Fix RUTv2 compat instances not working with modular. * Create fast-brooms-tie.md
firebase · Sep 16, 2021 · 46d26ff · 46d26ff
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commit 46d26ff
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diff --git a/.changeset/fast-brooms-tie.md b/.changeset/fast-brooms-tie.md
@@ -0,0 +1,5 @@
+---
+"@firebase/rules-unit-testing": patch
+---
+
+Fix typing issues where Database/Firestore/Storage compat instances returned by RulesTestContext are not compatible with v9 modular APIs.
diff --git a/packages/rules-unit-testing/src/public_types/index.ts b/packages/rules-unit-testing/src/public_types/index.ts
@@ -18,6 +18,12 @@
 import { FirebaseSignInProvider } from '@firebase/util';
 import firebase from 'firebase/compat/app';
 
+// These import statements allow v9 compat instances (created by RulesTestContext) to be used in v9
+// modular APIs, e.g. `doc(context.firestore(), 'a/b')` in developer code. (a.k.a. "interop mode".)
+import 'firebase/compat/database';
+import 'firebase/compat/firestore';
+import 'firebase/compat/storage';
+
 /**
  * More options for the mock user token to be used for testing, including developer-specfied custom
  * claims or optional overrides for Firebase Auth token payloads.