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"
+#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 base::SupportsWeakPtr<RequestCoordinatorTest> {
+ public:
+  RequestCoordinatorTest();

[fgorski, 2016/05/04 17:39:44]

nit: likely not needed.

[Pete Williamson, 2016/05/04 18:17:42]

I prefer to define these explicitly instead of letting the compiler silently
insert them.

+  ~RequestCoordinatorTest() override;
+
+  void callbackFunction() {

[fgorski, 2016/05/04 17:39:44]

nit: use PascalCase not camelCase in C++

[Pete Williamson, 2016/05/04 18:17:42]

Done.

+  }
+};
+
+RequestCoordinatorTest::RequestCoordinatorTest() {}
+
+RequestCoordinatorTest::~RequestCoordinatorTest() {}
+
+TEST_F(RequestCoordinatorTest, StartProcessingWithNoRequests) {
+  RequestCoordinator::ProcessingDoneCallback callback =
+      base::Bind(&RequestCoordinatorTest::callbackFunction, AsWeakPtr());

[fgorski, 2016/05/04 17:39:44]

You can use base::Unretained in tests and not worry about supporting weak ptrs.

[Pete Williamson, 2016/05/04 18:17:42]

Done.

+  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