Add Fast Pair Switches.

PiperOrigin-RevId: 538605609

fastpair/common/BUILD

@@ -8,6 +8,7 @@ cc_library(
         "fast_pair_device.cc",
         "fast_pair_http_result.cc",
         "fast_pair_prefs.cc",
+        "fast_pair_switches.cc",
         "pair_failure.cc",
         "protocol.cc",
     ],
@@ -19,6 +20,7 @@ cc_library(
         "fast_pair_device.h",
         "fast_pair_http_result.h",
         "fast_pair_prefs.h",
+        "fast_pair_switches.h",
         "non_discoverable_advertisement.h",
         "pair_failure.h",
         "protocol.h",
@@ -113,3 +115,18 @@ cc_test(
         "@com_google_googletest//:gtest_main",
     ],
 )
+
+cc_test(
+    name = "fast_pair_switches_test",
+    size = "small",
+    srcs = [
+        "fast_pair_switches_test.cc",
+    ],
+    shard_count = 16,
+    deps = [
+        ":common",
+        "//internal/platform/implementation/g3",  # build_cleaner: keep
+        "@com_github_protobuf_matchers//protobuf-matchers",
+        "@com_google_googletest//:gtest_main",
+    ],
+)

fastpair/common/fast_pair_switches.cc

@@ -0,0 +1,45 @@
+// 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/common/fast_pair_switches.h"
+
+#include <string>
+
+namespace nearby {
+namespace fastpair {
+namespace switches {
+
+namespace {
+
+// Switch value for nearby fast pair global host.
+int global_host_size = 0;
+char global_host[256];
+
+}  // namespace
+
+void SetNearbyFastPairHttpHost(const std::string& host) {
+  if (host.size() > 256) {
+    return;
+  }
+  global_host_size = host.size();
+  memcpy(global_host, host.c_str(), global_host_size);
+}
+
+std::string GetNearbyFastPairHttpHost() {
+  return std::string(global_host, global_host_size);
+}
+
+}  // namespace switches
+}  // namespace fastpair
+}  // namespace nearby

fastpair/common/fast_pair_switches.h

@@ -0,0 +1,37 @@
+// 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_COMMON_FASTPAIR_SWITCHES_H_
+#define THIRD_PARTY_NEARBY_FASTPAIR_COMMON_FASTPAIR_SWITCHES_H_
+
+#include <string>
+
+#include "fastpair/common/fast_pair_switches.h"
+
+namespace nearby {
+namespace fastpair {
+namespace switches {
+
+// All switches in alphabetical order. The switches should be documented
+// alongside the definition of their values in the .cc file.
+
+// Setter and Getter for Nearby Fast Pair http host.
+void SetNearbyFastPairHttpHost(const std::string& host);
+std::string GetNearbyFastPairHttpHost();
+
+}  // namespace switches
+}  // namespace fastpair
+}  // namespace nearby
+
+#endif  // THIRD_PARTY_NEARBY_FASTPAIR_COMMON_FASTPAIR_SWITCHES_H_

fastpair/common/fast_pair_switches_test.cc

@@ -0,0 +1,51 @@
+// 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/common/fast_pair_switches.h"
+
+#include <string>
+
+#include "gmock/gmock.h"
+#include "protobuf-matchers/protocol-buffer-matchers.h"
+#include "gtest/gtest.h"
+
+namespace nearby {
+namespace fastpair {
+namespace switches {
+namespace {
+
+TEST(FastPairSwitches, DefautEmptyHttpHost) {
+  EXPECT_THAT(GetNearbyFastPairHttpHost(), testing::IsEmpty());
+}
+
+TEST(FastPairSwitches, SetLongSizedHttpHostSkipped) {
+  std::string s(5000, '*');
+  SetNearbyFastPairHttpHost(s);
+  EXPECT_THAT(GetNearbyFastPairHttpHost(), testing::IsEmpty());
+}
+
+TEST(FastPairSwitches, SetNonEmptyHttpHost) {
+  SetNearbyFastPairHttpHost("fakehost.com");
+  EXPECT_THAT(GetNearbyFastPairHttpHost(), "fakehost.com");
+}
+
+TEST(FastPairSwitches, SetEmptyHttpHost) {
+  SetNearbyFastPairHttpHost("");
+  EXPECT_THAT(GetNearbyFastPairHttpHost(), testing::IsEmpty());
+}
+
+}  // namespace
+}  // namespace switches
+}  // namespace fastpair
+}  // namespace nearby

fastpair/repository/fast_pair_metadata_repository_impl_test.cc

@@ -91,7 +91,6 @@ class FastPairMetadataRepositoryImplTest : public ::testing::Test {
 
   void SetUp() override {
     http_client_ = std::make_unique<network::FastPairFakeHttpClient>();
-    SetNearbySharedHttpHost(kTestGoogleApisUrl);
 
     auto fetcher = std::make_unique<FakeFastPairMetadataFetcher>();
     fetcher_ = fetcher.get();
@@ -100,16 +99,6 @@ class FastPairMetadataRepositoryImplTest : public ::testing::Test {
         std::move(fetcher), std::move(http_client_));
   }
 
-  void SetNearbySharedHttpHost(const std::string& host) {
-    int global_host_size = 0;
-    char global_host[256];
-    if (host.size() > 256) {
-      return;
-    }
-    global_host_size = host.size();
-    memcpy(global_host, host.c_str(), global_host_size);
-  }
-
   const FastPairMetadataFetcher::QueryParameters&
   request_as_query_parameters() {
     return fetcher_->request_as_query_parameters_;