Add unit test for request coordiator

components/offline_pages/background/request_coordinator_unittest.cc

+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "components/offline_pages/background/request_coordinator.h"
+
+#include "base/bind.h"
+#include "base/memory/weak_ptr.h"

[fgorski, 2016/05/04 18:20:16]

nit: not needed

+#include "components/offline_pages/background/save_page_request.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace offline_pages {
+
+namespace {
+// put test constants here
+const int64_t kRequestId = 42;
+const GURL kUrl("http://universe.com/everything");
+const ClientId kClientId("bookmark", "1234");
+}  // namespace
+
+class RequestCoordinatorTest
+    : public testing::Test {
+ public:
+  RequestCoordinatorTest();
+  ~RequestCoordinatorTest() override;
+
+  void CallbackFunction() {
+  }
+};
+
+RequestCoordinatorTest::RequestCoordinatorTest() {}
+
+RequestCoordinatorTest::~RequestCoordinatorTest() {}
+
+TEST_F(RequestCoordinatorTest, StartProcessingWithNoRequests) {
+  RequestCoordinator::ProcessingDoneCallback callback =
+      base::Bind(
+          &RequestCoordinatorTest::CallbackFunction,
+          base::Unretained(this));
+  RequestCoordinator coordinator;
+  EXPECT_FALSE(coordinator.StartProcessing(callback));
+}
+
+TEST_F(RequestCoordinatorTest, SavePageLater) {
+  RequestCoordinator coordinator;
+  SavePageRequest request(kRequestId, kUrl, kClientId, base::Time::Now());
+  EXPECT_TRUE(coordinator.SavePageLater(request));
+}
+
+}  // namespace offline_pages