Fix tests

Author: wu-hui

packages/firestore/test/integration/api/database.test.ts

@@ -1967,4 +1967,17 @@ apiDescribe('Database', persistence => {
       });
     });
   });
+
+  it('Lru GC is enabled by default.', () => {
+    const initialData = { key: 'value' };
+    return withTestDb(persistence, async db => {
+      const docRef = doc(collection(db, 'test-collection'));
+      await setDoc(docRef, initialData);
+      return getDocFromCache(docRef).then(doc => {
+        expect(doc.exists()).to.be.true;
+        expect(doc.metadata.fromCache).to.be.true;
+        expect(doc.data()).to.deep.equal(initialData);
+      });
+    });
+  });
 });

packages/firestore/test/integration/util/helpers.ts

@@ -181,9 +181,7 @@ function apiDescribeInternal(
   message: string,
   testSuite: (persistence: PersistenceMode) => void
 ): void {
-  const persistenceModes: PersistenceMode[] = [
-    new MemoryEagerPersistenceMode()
-  ];
+  const persistenceModes: PersistenceMode[] = [new MemoryLruPersistenceMode()];
   if (isPersistenceAvailable()) {
     persistenceModes.push(new IndexedDbPersistenceMode());
   }
@@ -254,51 +252,6 @@ export function withTestDb(
   });
 }
 
-export function withEnsuredEagerGcTestDb(
-  fn: (db: Firestore) => Promise<void>
-): Promise<void> {
-  const newSettings = { ...DEFAULT_SETTINGS };
-  newSettings.localCache = memoryLocalCache({
-    garbageCollector: memoryEagerGarbageCollector()
-  });
-  return withTestDbsSettings(
-    false,
-    DEFAULT_PROJECT_ID,
-    newSettings,
-    1,
-    async ([db]) => {
-      return fn(db);
-    }
-  );
-}
-
-export function withEnsuredLruGcTestDb(
-  persistence: boolean,
-  fn: (db: Firestore) => Promise<void>
-): Promise<void> {
-  const newSettings = { ...DEFAULT_SETTINGS };
-  if (persistence) {
-    newSettings.localCache = persistentLocalCache({
-      cacheSizeBytes: 1 * 1024 * 1024
-    });
-  } else {
-    newSettings.localCache = memoryLocalCache({
-      garbageCollector: memoryLruGarbageCollector({
-        cacheSizeBytes: 1 * 1024 * 1024
-      })
-    });
-  }
-  return withTestDbsSettings(
-    persistence,
-    DEFAULT_PROJECT_ID,
-    newSettings,
-    1,
-    async ([db]) => {
-      return fn(db);
-    }
-  );
-}
-
 /** Runs provided fn with a db for an alternate project id. */
 export function withAlternateTestDb(
   persistence: PersistenceMode | typeof PERSISTENCE_MODE_UNSPECIFIED,