[Blimp] Adds blimp engine browser test framework and LoadUrl test.

blimp/test/browser_tests/blimp_browser_test.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 "blimp/test/browser_tests/blimp_browser_test.h"
+
+#include <string>
+
+#include "base/base_switches.h"
+#include "base/command_line.h"
+#include "base/files/file_path.h"
+#include "base/memory/ptr_util.h"
+#include "base/message_loop/message_loop.h"
+#include "base/run_loop.h"
+#include "blimp/client/app/blimp_client_switches.h"
+#include "blimp/client/session/assignment_source.h"
+#include "blimp/engine/app/blimp_engine_config.h"
+#include "blimp/engine/app/switches.h"
+#include "content/public/browser/browser_thread.h"
+#include "content/public/browser/render_process_host.h"
+#include "content/public/common/url_constants.h"
+#include "net/base/ip_endpoint.h"
+#include "net/log/net_log.h"
+#include "net/socket/tcp_server_socket.h"
+#include "ui/gl/gl_switches.h"
+
+namespace blimp {
+namespace {
+
+const char* kTestDataFilePath = "blimp/engine/test/data";

[Kevin M, 2016/05/03 20:29:34]

const char kTestDataFilePath[]

[haibinlu, 2016/05/03 20:51:59]

Done.

+const char* kClientTokenFilePath = "blimp/test/data/test_client_token";

[Kevin M, 2016/05/03 20:29:34]

ditto

[haibinlu, 2016/05/03 20:51:59]

Done.

+
+uint16_t FindAvailableLocalPort() {
+  net::NetLog::Source source;
+  net::TCPServerSocket sock(NULL, source);
+  DCHECK_EQ(sock.Listen(net::IPEndPoint(net::IPAddress::IPv4Localhost(), 0), 1),
+            net::OK);
+  net::IPEndPoint address;
+  sock.GetLocalAddress(&address);
+  return address.port();
+}
+
+}  // namespace
+
+BlimpBrowserTest::BlimpBrowserTest() {
+  base::FilePath test_data(FILE_PATH_LITERAL(kTestDataFilePath));
+  CreateTestServer(test_data);
+}
+
+BlimpBrowserTest::~BlimpBrowserTest() {}
+
+void BlimpBrowserTest::SetUp() {
+  base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
+  SetUpCommandLine(command_line);
+  BrowserTestBase::SetUp();
+}
+
+void BlimpBrowserTest::SetUpOnMainThread() {}
+
+void BlimpBrowserTest::TearDownOnMainThread() {
+  content::BrowserThread::GetMessageLoopProxyForThread(
+      content::BrowserThread::UI)
+      ->PostTask(FROM_HERE, base::MessageLoop::QuitWhenIdleClosure());
+}
+
+void BlimpBrowserTest::SetUpCommandLine(base::CommandLine* command_line) {
+  command_line->AppendSwitchASCII(::switches::kVModule, "blimp*=2");
+  command_line->AppendSwitchASCII(blimp::switches::kEnginePort,
+                                  std::to_string(FindAvailableLocalPort()));
+
+  // Engine switches
+  blimp::engine::SetUpCommandLine(command_line);
+  command_line->AppendSwitchASCII(blimp::engine::kClientTokenPath,
+                                  kClientTokenFilePath);
+
+  // Client switches
+  // Client's AssignmentSource uses engine IP&port from command line and
+  // defaults to TCP client.
+  command_line->AppendSwitchASCII(blimp::switches::kEngineIP, "127.0.0.1");
+  command_line->AppendSwitchASCII(blimp::switches::kEngineTransport, "tcp");
+}
+
+void BlimpBrowserTest::RunTestOnMainThreadLoop() {
+  DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
+
+  // Pump startup related events.
+  base::MessageLoop::current()->RunUntilIdle();
+
+  SetUpOnMainThread();
+  RunTestOnMainThread();
+  TearDownOnMainThread();
+
+  for (content::RenderProcessHost::iterator i(
+           content::RenderProcessHost::AllHostsIterator());
+       !i.IsAtEnd(); i.Advance()) {
+    i.GetCurrentValue()->FastShutdownIfPossible();
+  }
+}
+
+void BlimpBrowserTest::RunUntilQuit() {
+  base::MessageLoop::ScopedNestableTaskAllower nestable_allower(
+      base::MessageLoop::current());
+  EXPECT_FALSE(run_loop_);
+  run_loop_ = base::WrapUnique(new base::RunLoop());
+  run_loop_->Run();
+  run_loop_ = nullptr;
+}
+
+void BlimpBrowserTest::QuitRunLoop() {
+  run_loop_->Quit();
+}
+
+}  // namespace blimp