mojo/shell/shell_test_helper.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef MOJO_SHELL_SHELL_TEST_HELPER_
   6 #define MOJO_SHELL_SHELL_TEST_HELPER_
   7
   8 #include "base/macros.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "base/run_loop.h"
  11 #include "base/threading/thread.h"
  12 #include "mojo/public/cpp/environment/environment.h"
  13 #include "mojo/public/interfaces/shell/shell.mojom.h"
  14
  15 namespace base {
  16 class MessageLoopProxy;
  17 class RunLoop;
  18 }
  19
  20 namespace mojo {
  21 namespace shell {
  22
  23 // ShellTestHelper is useful for tests to establish a connection to the Shell.
  24 // ShellTestHelper does this by spawning a thread and connecting. Invoke Init()
  25 // to do this. Once done, shell() returns the handle to the Shell.
  26 class ShellTestHelper {
  27  public:
  28   struct State;
  29
  30   ShellTestHelper();
  31   ~ShellTestHelper();
  32
  33   void Init();
  34
  35   // Returns a handle to the Shell. ShellTestHelper owns the shell.
  36   Shell* shell() { return shell_.get(); }
  37
  38  private:
  39   class TestShellClient;
  40
  41   // Invoked once connection has been established.
  42   void OnShellStarted();
  43
  44   Environment environment_;
  45
  46   base::Thread shell_thread_;
  47
  48   // If non-null we're in Init() and waiting for connection.
  49   scoped_ptr<base::RunLoop> run_loop_;
  50
  51   // See comment in declaration for details.
  52   State* state_;
  53
  54   // Client interface for the shell.
  55   scoped_ptr<TestShellClient> shell_client_;
  56
  57   ShellPtr shell_;
  58
  59   DISALLOW_COPY_AND_ASSIGN(ShellTestHelper);
  60 };
  61
  62 }  // namespace shell
  63 }  // namespace mojo
  64
  65 #endif  // MOJO_SHELL_SHELL_TEST_HELPER_