Convert Connect apptest to a unittest

mojo/shell/public/cpp/lib/shell_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 "mojo/shell/public/cpp/shell_test.h"
+
+#include "base/message_loop/message_loop.h"
+#include "mojo/shell/background/background_shell.h"
+#include "mojo/shell/public/cpp/shell_client.h"
+
+namespace mojo {
+namespace test {
+class ShellTest::DefaultShellClient : public ShellClient {
+ public:
+  explicit DefaultShellClient(ShellTest* test) : test_(test) {}
+  ~DefaultShellClient() override {}
+
+ private:
+  void Initialize(Connector* connector, const std::string& name,
+                  uint32_t id, uint32_t user_id /* = 0 */) override {
+    test_->connector_ = connector;
+    test_->InitializeCalled(name, id, user_id);
+  }
+
+  ShellTest* test_;
+
+  DISALLOW_COPY_AND_ASSIGN(DefaultShellClient);
+};
+
+ShellTest::ShellTest() {}
+ShellTest::ShellTest(const std::string& test_name) : test_name_(test_name) {}
+ShellTest::~ShellTest() {}
+
+void ShellTest::InitTestName(const std::string& test_name) {
+  DCHECK(test_name_.empty());
+  test_name_ = test_name;
+}
+
+scoped_ptr<ShellClient> ShellTest::CreateShellClient() {
+  return make_scoped_ptr(new DefaultShellClient(this));
+}
+
+void ShellTest::InitializeCalled(const std::string& name, uint32_t id,
+                                 uint32_t userid) {
+  initialize_name_ = name;
+  initialize_instance_id_ = id;
+  initialize_userid_ = userid;
+}
+
+void ShellTest::SetUp() {
+  shell_client_ = CreateShellClient();
+  message_loop_.reset(new base::MessageLoop);
+  background_shell_.reset(new shell::BackgroundShell);
+  background_shell_->Init(nullptr);
+  shell_connection_.reset(new ShellConnection(
+      shell_client_.get(),
+      background_shell_->CreateShellClientRequest(test_name_)));
+  shell_connection_->WaitForInitialize();
+}
+
+void ShellTest::TearDown() {
+  shell_connection_.reset();
+  background_shell_.reset();
+  message_loop_.reset();
+  shell_client_.reset();
+}
+
+}  // namespace test
+}  // namespace mojo