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// Copyright (c) 2011 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 <algorithm>
#include <string>
#include <vector>
#include "base/bind.h"
#include "base/memory/scoped_ptr.h"
#include "base/message_loop.h"
#include "base/stl_util.h"
#include "base/threading/thread.h"
#include "base/threading/thread_restrictions.h"
#include "dbus/bus.h"
#include "dbus/message.h"
#include "dbus/object_proxy.h"
#include "dbus/test_service.h"
#include "testing/gtest/include/gtest/gtest.h"
// The end-to-end test exercises the asynchronos APIs in ObjectProxy and
// ExportedObject.
class EndToEndAsyncTest : public testing::Test {
public:
EndToEndAsyncTest() {
}
void SetUp() {
// Make the main thread not to allow IO.
base::ThreadRestrictions::SetIOAllowed(false);
// Start the test service;
test_service_.reset(new dbus::TestService);
test_service_->StartService();
test_service_->WaitUntilServiceIsStarted();
// Start the D-Bus thread.
dbus_thread_.reset(new base::Thread("D-Bus Thread"));
base::Thread::Options thread_options;
thread_options.message_loop_type = MessageLoop::TYPE_IO;
dbus_thread_->StartWithOptions(thread_options);
// Create the client.
dbus::Bus::Options bus_options;
bus_options.bus_type = dbus::Bus::SESSION;
bus_options.connection_type = dbus::Bus::PRIVATE;
bus_options.dbus_thread = dbus_thread_.get();
bus_ = new dbus::Bus(bus_options);
object_proxy_ = bus_->GetObjectProxy("org.chromium.TestService",
"/org/chromium/TestObject");
}
void TearDown() {
bus_->Shutdown(base::Bind(&EndToEndAsyncTest::OnShutdown,
base::Unretained(this)));
// Wait until the bus is shutdown. OnShutdown() will be called in
// mesage_loop_.
message_loop_.Run();
// Reset to the default.
base::ThreadRestrictions::SetIOAllowed(true);
// Stopping a thread is considred an IO operation, so do this after
// allowing IO.
test_service_->Stop();
}
protected:
// Calls the method asynchronosly. OnResponse() will be called once the
// response is received.
void CallMethod(dbus::MethodCall* method_call,
int timeout_ms) {
object_proxy_->CallMethod(method_call,
timeout_ms,
base::Bind(&EndToEndAsyncTest::OnResponse,
base::Unretained(this)));
}
// Wait for the give number of responses.
void WaitForResponses(size_t num_responses) {
while (response_strings_.size() < num_responses) {
message_loop_.Run();
}
}
// Called when the response is received.
void OnResponse(dbus::Response* response) {
// |response| will be deleted on exit of the function. Copy the
// payload to |response_strings_|.
if (response) {
dbus::MessageReader reader(response);
std::string response_string;
ASSERT_TRUE(reader.PopString(&response_string));
response_strings_.push_back(response_string);
} else {
response_strings_.push_back("");
}
message_loop_.Quit();
};
// Called when the shutdown is complete.
void OnShutdown() {
message_loop_.Quit();
}
MessageLoop message_loop_;
std::vector<std::string> response_strings_;
scoped_ptr<base::Thread> dbus_thread_;
scoped_refptr<dbus::Bus> bus_;
dbus::ObjectProxy* object_proxy_;
scoped_ptr<dbus::TestService> test_service_;
};
TEST_F(EndToEndAsyncTest, Echo) {
const char* kHello = "hello";
// Create the method call.
dbus::MethodCall method_call("org.chromium.TestInterface", "Echo");
dbus::MessageWriter writer(&method_call);
writer.AppendString(kHello);
// Call the method.
const int timeout_ms = dbus::ObjectProxy::TIMEOUT_USE_DEFAULT;
CallMethod(&method_call, timeout_ms);
// Check the response.
WaitForResponses(1);
EXPECT_EQ(kHello, response_strings_[0]);
}
// Call Echo method three times.
TEST_F(EndToEndAsyncTest, EchoThreeTimes) {
const char* kMessages[] = { "foo", "bar", "baz" };
for (size_t i = 0; i < arraysize(kMessages); ++i) {
// Create the method call.
dbus::MethodCall method_call("org.chromium.TestInterface", "Echo");
dbus::MessageWriter writer(&method_call);
writer.AppendString(kMessages[i]);
// Call the method.
const int timeout_ms = dbus::ObjectProxy::TIMEOUT_USE_DEFAULT;
CallMethod(&method_call, timeout_ms);
}
// Check the responses.
WaitForResponses(3);
// Sort as the order of the returned messages is not deterministic.
std::sort(response_strings_.begin(), response_strings_.end());
EXPECT_EQ("bar", response_strings_[0]);
EXPECT_EQ("baz", response_strings_[1]);
EXPECT_EQ("foo", response_strings_[2]);
}
TEST_F(EndToEndAsyncTest, Timeout) {
const char* kHello = "hello";
// Create the method call.
dbus::MethodCall method_call("org.chromium.TestInterface", "SlowEcho");
dbus::MessageWriter writer(&method_call);
writer.AppendString(kHello);
// Call the method with timeout smaller than TestService::kSlowEchoSleepMs.
const int timeout_ms = dbus::TestService::kSlowEchoSleepMs / 10;
CallMethod(&method_call, timeout_ms);
WaitForResponses(1);
// Should fail because of timeout.
ASSERT_EQ("", response_strings_[0]);
}
TEST_F(EndToEndAsyncTest, NonexistentMethod) {
dbus::MethodCall method_call("org.chromium.TestInterface", "Nonexistent");
const int timeout_ms = dbus::ObjectProxy::TIMEOUT_USE_DEFAULT;
CallMethod(&method_call, timeout_ms);
WaitForResponses(1);
// Should fail because the method is nonexistent.
ASSERT_EQ("", response_strings_[0]);
}
TEST_F(EndToEndAsyncTest, BrokenMethod) {
dbus::MethodCall method_call("org.chromium.TestInterface", "BrokenMethod");
const int timeout_ms = dbus::ObjectProxy::TIMEOUT_USE_DEFAULT;
CallMethod(&method_call, timeout_ms);
WaitForResponses(1);
// Should fail because the method is broken.
ASSERT_EQ("", response_strings_[0]);
}
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