LRU tests pass

Author: wu-hui

firestore/integration_test_internal/src/firestore_test.cc

@@ -1588,6 +1588,42 @@ TEST_F(FirestoreIntegrationTest, CannotMixNewAndLegacyCacheConfig) {
   }
 }
 
+TEST_F(FirestoreIntegrationTest, CanGetDocumentFromCacheWithMemoryLruGC) {
+  auto* db = TestFirestore("new_persistent_cache");
+  auto settings = db->settings();
+  settings.set_local_cache_settings(
+      MemoryCacheSettings::Create().WithGarbageCollectorSettings(
+          MemoryLruGCSettings::Create()));
+  db->set_settings(std::move(settings));
+
+  Await(db->Document("rooms/eros")
+            .Set(MapFieldValue{{"desc", FieldValue::String("eros")}}));
+
+  auto get_future = db->Document("rooms/eros").Get(Source::kCache);
+  const DocumentSnapshot* snapshot = Await(get_future);
+  EXPECT_EQ(get_future.status(), FutureStatus::kFutureStatusComplete);
+  EXPECT_TRUE(snapshot->is_valid());
+  EXPECT_THAT(snapshot->GetData(),
+              ContainerEq(MapFieldValue{{"desc", FieldValue::String("eros")}}));
+}
+
+TEST_F(FirestoreIntegrationTest, CannotGetDocumentFromCacheFromMemoryEagerGC) {
+  auto* db = TestFirestore("new_persistent_cache");
+  auto settings = db->settings();
+  settings.set_local_cache_settings(
+      MemoryCacheSettings::Create().WithGarbageCollectorSettings(
+          MemoryEagerGCSettings::Create()));
+  db->set_settings(std::move(settings));
+
+  Await(db->Document("rooms/eros")
+            .Set(MapFieldValue{{"desc", FieldValue::String("eros")}}));
+
+  auto get_future = db->Document("rooms/eros").Get(Source::kCache);
+  const DocumentSnapshot* snapshot = Await(get_future);
+  EXPECT_EQ(get_future.status(), FutureStatus::kFutureStatusComplete);
+  EXPECT_FALSE(snapshot->is_valid());
+}
+
 // Note: this test only exists in C++.
 TEST_F(FirestoreIntegrationTest, DomainObjectsReferToSameFirestoreInstance) {
   EXPECT_EQ(TestFirestore(), TestFirestore()->Document("foo/bar").firestore());

firestore/src/common/local_cache_settings.cc

@@ -97,6 +97,16 @@ MemoryCacheSettings::MemoryCacheSettings(const MemoryCacheSettings& other) {
 
 MemoryCacheSettings::~MemoryCacheSettings() { settings_internal_.reset(); }
 
+MemoryCacheSettings MemoryCacheSettings::WithGarbageCollectorSettings(
+    const MemoryGarbageCollectorSettings& settings) const {
+  MemoryCacheSettings result{*this};
+  CoreMemorySettings core_settings = result.settings_internal_->core_settings();
+  result.settings_internal_->set_core_settings(
+      core_settings.WithMemoryGarbageCollectorSettings(
+          settings.core_gc_settings()));
+  return result;
+}
+
 const CoreCacheSettings& MemoryCacheSettings::core_cache_settings() const {
   return settings_internal_->core_settings();
 }

firestore/src/include/firebase/firestore/local_cache_settings.h

@@ -28,6 +28,7 @@ namespace firebase {
 namespace firestore {
 
 using CoreCacheSettings = api::LocalCacheSettings;
+using CoreMemoryGarbageCollectorSettings = api::MemoryGargabeCollectorSettings;
 
 class PersistentCacheSettingsInternal;
 class MemoryCacheSettingsInternal;
@@ -57,7 +58,6 @@ class PersistentCacheSettings final : public LocalCacheSettings {
   friend class Settings;
 
   PersistentCacheSettings();
-  PersistentCacheSettings(const PersistentCacheSettingsInternal& other);
 
   api::LocalCacheSettings::Kind kind() const override {
     return api::LocalCacheSettings::Kind::kPersistent;
@@ -68,57 +68,73 @@ class PersistentCacheSettings final : public LocalCacheSettings {
   std::unique_ptr<PersistentCacheSettingsInternal> settings_internal_;
 };
 
+class MemoryGarbageCollectorSettings;
+
+class MemoryCacheSettings final : public LocalCacheSettings {
+ public:
+  static MemoryCacheSettings Create();
+  MemoryCacheSettings(const MemoryCacheSettings& other);
+  ~MemoryCacheSettings();
+
+  MemoryCacheSettings WithGarbageCollectorSettings(
+      const MemoryGarbageCollectorSettings& settings) const;
+
+ private:
+  friend class Settings;
+
+  MemoryCacheSettings();
+
+  api::LocalCacheSettings::Kind kind() const override {
+    return api::LocalCacheSettings::Kind::kMemory;
+  }
+
+  const CoreCacheSettings& core_cache_settings() const override;
+
+  std::unique_ptr<MemoryCacheSettingsInternal> settings_internal_;
+};
+
 class MemoryGarbageCollectorSettings {
  public:
   virtual ~MemoryGarbageCollectorSettings() = default;
 
  private:
+  friend class MemoryCacheSettings;
+  virtual const CoreMemoryGarbageCollectorSettings& core_gc_settings()
+      const = 0;
 };
 
-class MemoryEagerGCSettings final : MemoryGarbageCollectorSettings {
+class MemoryEagerGCSettings final : public MemoryGarbageCollectorSettings {
+ public:
   static MemoryEagerGCSettings Create();
   ~MemoryEagerGCSettings();
 
  private:
+  friend class MemoryCacheSettings;
   MemoryEagerGCSettings();
 
+  const CoreMemoryGarbageCollectorSettings& core_gc_settings() const override {
+    return settings_internal_->core_settings();
+  }
+
   std::unique_ptr<MemoryEagerGCSettingsInternal> settings_internal_;
 };
 
-class MemoryLruGCSettings final : MemoryGarbageCollectorSettings {
+class MemoryLruGCSettings final : public MemoryGarbageCollectorSettings {
+ public:
   static MemoryLruGCSettings Create();
   ~MemoryLruGCSettings();
   MemoryLruGCSettings WithSizeBytes(int64_t size);
 
  private:
+  friend class MemoryCacheSettings;
   MemoryLruGCSettings();
   MemoryLruGCSettings(const MemoryLruGCSettingsInternal& other);
 
-  std::unique_ptr<MemoryLruGCSettingsInternal> settings_internal_;
-};
-
-class MemoryCacheSettings final : public LocalCacheSettings {
- public:
-  static MemoryCacheSettings Create();
-  MemoryCacheSettings(const MemoryCacheSettings& other);
-  ~MemoryCacheSettings();
-
-  MemoryCacheSettings WithGarbageCollectorSettings(
-      const MemoryGarbageCollectorSettings& settings);
-
- private:
-  friend class Settings;
-
-  MemoryCacheSettings();
-  MemoryCacheSettings(const MemoryCacheSettingsInternal& other);
-
-  api::LocalCacheSettings::Kind kind() const override {
-    return api::LocalCacheSettings::Kind::kMemory;
+  const CoreMemoryGarbageCollectorSettings& core_gc_settings() const override {
+    return settings_internal_->core_settings();
   }
 
-  const CoreCacheSettings& core_cache_settings() const override;
-
-  std::unique_ptr<MemoryCacheSettingsInternal> settings_internal_;
+  std::unique_ptr<MemoryLruGCSettingsInternal> settings_internal_;
 };
 
 }  // namespace firestore