Upstream version 10.39.225.0
[platform/framework/web/crosswalk.git] / src / chromeos / dbus / blocking_method_caller_unittest.cc
1 // Copyright (c) 2012 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 #include "chromeos/dbus/blocking_method_caller.h"
6
7 #include "base/logging.h"
8 #include "base/memory/ref_counted.h"
9 #include "base/memory/scoped_ptr.h"
10 #include "base/task_runner.h"
11 #include "dbus/message.h"
12 #include "dbus/mock_bus.h"
13 #include "dbus/mock_object_proxy.h"
14 #include "dbus/object_path.h"
15 #include "testing/gmock/include/gmock/gmock.h"
16 #include "testing/gtest/include/gtest/gtest.h"
17
18 using ::testing::_;
19 using ::testing::Invoke;
20 using ::testing::Return;
21
22 namespace chromeos {
23
24 namespace {
25
26 class FakeTaskRunner : public base::TaskRunner {
27  public:
28   virtual bool PostDelayedTask(const tracked_objects::Location& from_here,
29                                const base::Closure& task,
30                                base::TimeDelta delay) OVERRIDE {
31     task.Run();
32     return true;
33   }
34   virtual bool RunsTasksOnCurrentThread() const OVERRIDE { return true; }
35
36  protected:
37   virtual ~FakeTaskRunner() {}
38 };
39
40 }  // namespace
41
42 class BlockingMethodCallerTest : public testing::Test {
43  public:
44   BlockingMethodCallerTest() : task_runner_(new FakeTaskRunner) {
45   }
46
47   virtual void SetUp() {
48     // Create a mock bus.
49     dbus::Bus::Options options;
50     options.bus_type = dbus::Bus::SYSTEM;
51     mock_bus_ = new dbus::MockBus(options);
52
53     // Create a mock proxy.
54     mock_proxy_ = new dbus::MockObjectProxy(
55         mock_bus_.get(),
56         "org.chromium.TestService",
57         dbus::ObjectPath("/org/chromium/TestObject"));
58
59     // Set an expectation so mock_proxy's CallMethodAndBlock() will use
60     // CreateMockProxyResponse() to return responses.
61     EXPECT_CALL(*mock_proxy_.get(), MockCallMethodAndBlock(_, _))
62         .WillRepeatedly(
63              Invoke(this, &BlockingMethodCallerTest::CreateMockProxyResponse));
64
65     // Set an expectation so mock_bus's GetObjectProxy() for the given
66     // service name and the object path will return mock_proxy_.
67     EXPECT_CALL(*mock_bus_.get(),
68                 GetObjectProxy("org.chromium.TestService",
69                                dbus::ObjectPath("/org/chromium/TestObject")))
70         .WillOnce(Return(mock_proxy_.get()));
71
72     // Set an expectation so mock_bus's GetDBusTaskRunner will return the fake
73     // task runner.
74     EXPECT_CALL(*mock_bus_.get(), GetDBusTaskRunner())
75         .WillRepeatedly(Return(task_runner_.get()));
76
77     // ShutdownAndBlock() will be called in TearDown().
78     EXPECT_CALL(*mock_bus_.get(), ShutdownAndBlock()).WillOnce(Return());
79   }
80
81   virtual void TearDown() {
82     mock_bus_->ShutdownAndBlock();
83   }
84
85  protected:
86   scoped_refptr<FakeTaskRunner> task_runner_;
87   scoped_refptr<dbus::MockBus> mock_bus_;
88   scoped_refptr<dbus::MockObjectProxy> mock_proxy_;
89
90  private:
91   // Returns a response for the given method call. Used to implement
92   // CallMethodAndBlock() for |mock_proxy_|.
93   dbus::Response* CreateMockProxyResponse(dbus::MethodCall* method_call,
94                                           int timeout_ms) {
95     if (method_call->GetInterface() == "org.chromium.TestInterface" &&
96         method_call->GetMember() == "Echo") {
97       dbus::MessageReader reader(method_call);
98       std::string text_message;
99       if (reader.PopString(&text_message)) {
100         scoped_ptr<dbus::Response> response = dbus::Response::CreateEmpty();
101         dbus::MessageWriter writer(response.get());
102         writer.AppendString(text_message);
103         return response.release();
104       }
105     }
106
107     LOG(ERROR) << "Unexpected method call: " << method_call->ToString();
108     return NULL;
109   }
110 };
111
112 TEST_F(BlockingMethodCallerTest, Echo) {
113   const char kHello[] = "Hello";
114   // Get an object proxy from the mock bus.
115   dbus::ObjectProxy* proxy = mock_bus_->GetObjectProxy(
116       "org.chromium.TestService",
117       dbus::ObjectPath("/org/chromium/TestObject"));
118
119   // Create a method call.
120   dbus::MethodCall method_call("org.chromium.TestInterface", "Echo");
121   dbus::MessageWriter writer(&method_call);
122   writer.AppendString(kHello);
123
124   // Call the method.
125   BlockingMethodCaller blocking_method_caller(mock_bus_.get(), proxy);
126   scoped_ptr<dbus::Response> response(
127       blocking_method_caller.CallMethodAndBlock(&method_call));
128
129   // Check the response.
130   ASSERT_TRUE(response.get());
131   dbus::MessageReader reader(response.get());
132   std::string text_message;
133   ASSERT_TRUE(reader.PopString(&text_message));
134   // The text message should be echo'ed back.
135   EXPECT_EQ(kHello, text_message);
136 }
137
138 }  // namespace chromeos