1 files changed, 106 insertions, 0 deletions
diff --git a/pw_unit_test/rpc_gtest_event_handler.cc b/pw_unit_test/rpc_gtest_event_handler.cc
new file mode 100644
index 000000000..9428c4c92
--- /dev/null
+++ b/pw_unit_test/rpc_gtest_event_handler.cc
@@ -0,0 +1,106 @@
+// Copyright 2022 The Pigweed Authors
+//
+// 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 <tuple>
+
+#include "gtest/gtest.h"
+#include "pw_unit_test/internal/rpc_event_handler.h"
+#include "pw_unit_test/unit_test_service.h"
+
+namespace pw::unit_test::internal {
+
+RpcEventHandler::RpcEventHandler(UnitTestService& service) : service_(service) {
+  // Initialize GoogleTest and disable the default result printer.
+  testing::InitGoogleTest();
+  auto unit_test = testing::UnitTest::GetInstance();
+  auto default_listener = unit_test->listeners().default_result_printer();
+  unit_test->listeners().Release(default_listener);
+  delete default_listener;
+}
+
+void RpcEventHandler::ExecuteTests(span<std::string_view> suites_to_run) {
+  if (!suites_to_run.empty()) {
+    PW_LOG_WARN(
+        "GoogleTest backend does not support test suite filtering. Running all "
+        "suites.");
+  }
+  if (service_.verbose_) {
+    PW_LOG_WARN(
+        "GoogleTest backend does not support reporting passed expectations.");
+  }
+
+  auto unit_test = testing::UnitTest::GetInstance();
+  unit_test->listeners().Append(this);
+
+  std::ignore = RUN_ALL_TESTS();
+
+  unit_test->listeners().Release(this);
+}
+
+void RpcEventHandler::OnTestProgramStart(const testing::UnitTest&) {
+  service_.WriteTestRunStart();
+}
+
+void RpcEventHandler::OnTestProgramEnd(const testing::UnitTest& unit_test) {
+  RunTestsSummary run_tests_summary{
+      .passed_tests = unit_test.successful_test_count(),
+      .failed_tests = unit_test.failed_test_count(),
+      .skipped_tests = unit_test.skipped_test_count(),
+      .disabled_tests = unit_test.disabled_test_count(),
+  };
+  service_.WriteTestRunEnd(run_tests_summary);
+}
+
+void RpcEventHandler::OnTestStart(const testing::TestInfo& test_info) {
+  TestCase test_case{
+      .suite_name = test_info.test_suite_name(),
+      .test_name = test_info.name(),
+      .file_name = test_info.file(),
+  };
+  service_.WriteTestCaseStart(test_case);
+}
+
+void RpcEventHandler::OnTestEnd(const testing::TestInfo& test_info) {
+  TestResult result;
+  if (test_info.result()->Passed()) {
+    result = TestResult::kSuccess;
+  } else if (test_info.result()->Skipped()) {
+    result = TestResult::kSkipped;
+  } else {
+    result = TestResult::kFailure;
+  }
+
+  service_.WriteTestCaseEnd(result);
+}
+
+void RpcEventHandler::OnTestPartResult(const testing::TestPartResult& result) {
+  TestExpectation expectation{
+      .expression = "",
+      .evaluated_expression = result.summary(),
+      .line_number = result.line_number(),
+      .success = result.passed(),
+  };
+  service_.WriteTestCaseExpectation(expectation);
+}
+
+void RpcEventHandler::OnTestDisabled(const testing::TestInfo& test_info) {
+  TestCase test_case{
+      .suite_name = test_info.test_suite_name(),
+      .test_name = test_info.name(),
+      .file_name = test_info.file(),
+  };
+  service_.WriteTestCaseDisabled(test_case);
+}
+
+}  // namespace pw::unit_test::internal