Added example implementation of Firebase Test Lab Game Loop library.

testlab/src/android/testlab.cc

@@ -0,0 +1,103 @@
+// Copyright 2019 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.
+
+#include "testlab/src/include/firebase/testlab.h"
+
+#include <jni.h>
+
+#include "app/src/include/firebase/app.h"
+#include "app/src/include/firebase/log.h"
+#include "app/src/log.h"
+#include "app/src/reference_count.h"
+#include "app/src/util.h"
+#include "app/src/util_android.h"
+#include "testlab/src/android/util.h"
+#include "testlab/src/common/common.h"
+
+using firebase::internal::ReferenceCount;
+using firebase::internal::ReferenceCountLock;
+
+namespace firebase {
+namespace test_lab {
+namespace game_loop {
+
+static ReferenceCount g_initializer;  // NOLINT
+
+namespace internal {
+
+// Determine whether the test lab module is initialized.
+bool IsInitialized() { return g_initializer.references() > 0; }
+
+}  // namespace internal
+
+// Initialize the API
+void Initialize(const firebase::App& app) {
+  ReferenceCountLock<ReferenceCount> ref_count(&g_initializer);
+  if (ref_count.references() != 0) {
+    LogWarning("Test Lab API already initialized");
+    return;
+  }
+  ref_count.AddReference();
+  LogDebug("Firebase Test Lab API initializing");
+  internal::Initialize(&app);
+}
+
+// Clean up the API
+void Terminate() {
+  ReferenceCountLock<ReferenceCount> ref_count(&g_initializer);
+  if (ref_count.references() == 0) {
+    LogWarning("Test Lab API was never initialized");
+    return;
+  }
+  if (ref_count.references() == 1) {
+    internal::Terminate();
+  }
+  ref_count.RemoveReference();
+}
+
+// Return the game loop scenario's integer ID, or 0 if no game loop is running
+int GetScenario() {
+  if (!internal::IsInitialized()) return 0;
+  return internal::GetScenario();
+}
+
+// Log progress text to the game loop's custom results and device logs
+void LogText(const char* format, ...) {
+  if (GetScenario() == 0) return;
+  va_list args;
+  va_start(args, format);
+  internal::LogText(format, args);
+  va_end(args);
+}
+
+// Complete the game loop scenario with the specified outcome
+void FinishScenario(ScenarioOutcome outcome) {
+  if (GetScenario() == 0) return;
+  FILE* result_file = internal::RetrieveCustomResultsFile();
+  if (result_file == nullptr) {
+    LogError("Could not obtain the custom results file");
+  } else {
+    internal::OutputResult(outcome, result_file);
+  }
+  internal::CallFinish();
+  Terminate();
+  // TODO(brandonmorris): This works, but isn't the proper way to exit the app.
+  // Look into either using ANativeActivity_finish or calling finish() on the
+  // main thread.
+  exit(0);
+}
+
+}  // namespace game_loop
+}  // namespace test_lab
+}  // namespace firebase