Add mock monitoring client and factory.

Mock classes are more flexible and expected to be used for unit testing monitoring functionalities in primitive wrappers.

PiperOrigin-RevId: 439293493

3 files changed, 65 insertions, 0 deletions

diff --git a/cc/monitoring/BUILD.bazel b/cc/monitoring/BUILD.bazel
index a1c1cbbdc..22d3886a0 100644
--- a/cc/monitoring/BUILD.bazel
+++ b/cc/monitoring/BUILD.bazel
@@ -11,3 +11,14 @@ cc_library(
         "@com_google_absl//absl/container:flat_hash_map",
     ],
 )
+
+cc_library(
+    name = "monitoring_client_mocks",
+    testonly = 1,
+    hdrs = ["monitoring_client_mocks.h"],
+    include_prefix = "tink/monitoring",
+    deps = [
+        ":monitoring",
+        "@com_google_googletest//:gtest",
+    ],
+)
diff --git a/cc/monitoring/CMakeLists.txt b/cc/monitoring/CMakeLists.txt
index 53c732858..961388547 100644
--- a/cc/monitoring/CMakeLists.txt
+++ b/cc/monitoring/CMakeLists.txt
@@ -8,3 +8,12 @@ tink_cc_library(
     absl::flat_hash_map
     tink::util::statusor
 )
+
+tink_cc_library(
+  NAME monitoring_client_mocks
+  SRCS
+    monitoring_client_mocks.h
+  DEPS
+    tink::monitoring::monitoring
+    gmock
+)
diff --git a/cc/monitoring/monitoring_client_mocks.h b/cc/monitoring/monitoring_client_mocks.h
new file mode 100644
index 000000000..8a59b47c0
--- /dev/null
+++ b/cc/monitoring/monitoring_client_mocks.h
@@ -0,0 +1,45 @@
+// Copyright 2022 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
+//
+//     http://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 TINK_MONITORING_MOCK_MONITORING_CLIENT_FACTORY_H_
+#define TINK_MONITORING_MOCK_MONITORING_CLIENT_FACTORY_H_
+
+#include <cstdint>
+
+#include "gmock/gmock.h"
+#include "tink/monitoring/monitoring.h"
+
+namespace crypto {
+namespace tink {
+
+// Mock MonitoringClientFactory class.
+class MockMonitoringClientFactory : public MonitoringClientFactory {
+ public:
+  MOCK_METHOD(util::StatusOr<std::unique_ptr<MonitoringClient>>, New,
+              (const MonitoringContext& context), (override));
+};
+
+// Mock MonitoringClient class.
+class MockMonitoringClient : public MonitoringClient {
+ public:
+  MOCK_METHOD(void, Log, (uint32_t key_id, int64_t num_bytes_as_input),
+              (override));
+  MOCK_METHOD(void, LogFailure, (), (override));
+};
+
+}  // namespace tink
+}  // namespace crypto
+
+#endif  // TINK_MONITORING_MOCK_MONITORING_CLIENT_FACTORY_H_