Create FakeFastPairRepository for test support

PiperOrigin-RevId: 506720516

fastpair/server_access/BUILD

@@ -29,6 +29,20 @@ cc_library(
     ],
 )
 
+cc_library(
+    name = "test_support",
+    srcs = ["fake_fast_pair_repository.cc"],
+    hdrs = ["fake_fast_pair_repository.h"],
+    deps = [
+        ":server_access",
+        "//fastpair/common",
+        "//fastpair/proto:fastpair_cc_proto",
+        "//fastpair/repository",
+        "@com_google_absl//absl/container:flat_hash_map",
+        "@com_google_absl//absl/strings",
+    ],
+)
+
 cc_test(
     name = "server_access_test",
     srcs = [

fastpair/server_access/fake_fast_pair_repository.cc

@@ -0,0 +1,46 @@
+// Copyright 2023 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "fastpair/server_access/fake_fast_pair_repository.h"
+
+#include <memory>
+#include <utility>
+
+#include "absl/strings/string_view.h"
+#include "fastpair/proto/fastpair_rpcs.proto.h"
+
+namespace nearby {
+namespace fastpair {
+void FakeFastPairRepository::SetFakeMetadata(absl::string_view hex_model_id,
+                                             proto::Device metadata) {
+  proto::GetObservedDeviceResponse response;
+  *response.mutable_device() = metadata;
+  data_[hex_model_id] = std::make_unique<DeviceMetadata>(response);
+}
+
+void FakeFastPairRepository::ClearFakeMetadata(absl::string_view hex_model_id) {
+  data_.erase(hex_model_id);
+}
+
+void FakeFastPairRepository::GetDeviceMetadata(
+    absl::string_view hex_model_id, DeviceMetadataCallback callback) {
+  callback_ = std::move(callback);
+  if (data_.contains(hex_model_id)) {
+    std::move(callback_)(*data_[hex_model_id]);
+    return;
+  }
+}
+
+}  // namespace fastpair
+}  // namespace nearby

fastpair/server_access/fake_fast_pair_repository.h

@@ -0,0 +1,48 @@
+// Copyright 2023 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#ifndef THIRD_PARTY_NEARBY_FASTPAIR_SERVER_ACCESS_FAKE_FAST_PAIR_REPOSITORY_H_
+#define THIRD_PARTY_NEARBY_FASTPAIR_SERVER_ACCESS_FAKE_FAST_PAIR_REPOSITORY_H_
+
+#include <memory>
+#include <string>
+
+#include "absl/container/flat_hash_map.h"
+#include "absl/strings/string_view.h"
+#include "fastpair/repository/device_metadata.h"
+#include "fastpair/server_access/fast_pair_repository.h"
+
+namespace nearby {
+namespace fastpair {
+class FakeFastPairRepository : public FastPairRepository {
+ public:
+  FakeFastPairRepository();
+  FakeFastPairRepository(const FakeFastPairRepository&) = delete;
+  FakeFastPairRepository& operator=(const FakeFastPairRepository&) = delete;
+  ~FakeFastPairRepository() override;
+
+  void SetFakeMetadata(absl::string_view hex_model_id, proto::Device metadata);
+  void ClearFakeMetadata(absl::string_view hex_model_id);
+  // FastPairRepository::
+  void GetDeviceMetadata(absl::string_view hex_model_id,
+                         DeviceMetadataCallback callback) override;
+
+ private:
+  absl::flat_hash_map<std::string, std::unique_ptr<DeviceMetadata>> data_;
+  DeviceMetadataCallback callback_;
+};
+}  // namespace fastpair
+}  // namespace nearby
+
+#endif  // THIRD_PARTY_NEARBY_FASTPAIR_SERVER_ACCESS_FAKE_FAST_PAIR_REPOSITORY_H_