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// Copyright (c) 2012 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 "dbus/property.h"
#include <string>
#include <vector>
#include "base/basictypes.h"
#include "base/bind.h"
#include "base/logging.h"
#include "base/message_loop.h"
#include "base/threading/thread.h"
#include "base/threading/thread_restrictions.h"
#include "dbus/bus.h"
#include "dbus/object_path.h"
#include "dbus/object_proxy.h"
#include "dbus/property.h"
#include "dbus/test_service.h"
#include "testing/gtest/include/gtest/gtest.h"
// The property test exerises the asynchronous APIs in PropertySet and
// Property<>.
class PropertyTest : public testing::Test {
public:
PropertyTest() {
}
struct Properties : public dbus::PropertySet {
dbus::Property<std::string> name;
dbus::Property<int16> version;
dbus::Property<std::vector<std::string> > methods;
dbus::Property<std::vector<dbus::ObjectPath> > objects;
Properties(dbus::ObjectProxy* object_proxy,
PropertyChangedCallback property_changed_callback)
: dbus::PropertySet(object_proxy,
"org.chromium.TestService",
property_changed_callback) {
RegisterProperty("Name", &name);
RegisterProperty("Version", &version);
RegisterProperty("Methods", &methods);
RegisterProperty("Objects", &objects);
}
};
virtual void SetUp() {
// Make the main thread not to allow IO.
base::ThreadRestrictions::SetIOAllowed(false);
// 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;
ASSERT_TRUE(dbus_thread_->StartWithOptions(thread_options));
// Start the test service, using the D-Bus thread.
dbus::TestService::Options options;
options.dbus_thread_message_loop_proxy = dbus_thread_->message_loop_proxy();
test_service_.reset(new dbus::TestService(options));
ASSERT_TRUE(test_service_->StartService());
ASSERT_TRUE(test_service_->WaitUntilServiceIsStarted());
ASSERT_TRUE(test_service_->HasDBusThread());
// Create the client, using the D-Bus thread.
dbus::Bus::Options bus_options;
bus_options.bus_type = dbus::Bus::SESSION;
bus_options.connection_type = dbus::Bus::PRIVATE;
bus_options.dbus_thread_message_loop_proxy =
dbus_thread_->message_loop_proxy();
bus_ = new dbus::Bus(bus_options);
object_proxy_ = bus_->GetObjectProxy(
"org.chromium.TestService",
dbus::ObjectPath("/org/chromium/TestObject"));
ASSERT_TRUE(bus_->HasDBusThread());
// Create the properties structure
properties_.reset(new Properties(
object_proxy_,
base::Bind(&PropertyTest::OnPropertyChanged,
base::Unretained(this))));
properties_->ConnectSignals();
properties_->GetAll();
}
virtual void TearDown() {
bus_->ShutdownOnDBusThreadAndBlock();
// Shut down the service.
test_service_->ShutdownAndBlock();
// Reset to the default.
base::ThreadRestrictions::SetIOAllowed(true);
// Stopping a thread is considered an IO operation, so do this after
// allowing IO.
test_service_->Stop();
}
// Generic callback, bind with a string |id| for passing to
// WaitForCallback() to ensure the callback for the right method is
// waited for.
void PropertyCallback(const std::string& id, bool success) {
last_callback_ = id;
message_loop_.Quit();
}
protected:
// Called when a property value is updated.
void OnPropertyChanged(const std::string& name) {
updated_properties_.push_back(name);
message_loop_.Quit();
}
// Waits for the given number of updates.
void WaitForUpdates(size_t num_updates) {
while (updated_properties_.size() < num_updates)
message_loop_.Run();
for (size_t i = 0; i < num_updates; ++i)
updated_properties_.erase(updated_properties_.begin());
}
// Name, Version, Methods, Objects
static const int kExpectedSignalUpdates = 4;
// Waits for initial values to be set.
void WaitForGetAll() {
WaitForUpdates(kExpectedSignalUpdates);
}
// Waits for the callback. |id| is the string bound to the callback when
// the method call is made that identifies it and distinguishes from any
// other; you can set this to whatever you wish.
void WaitForCallback(const std::string& id) {
while (last_callback_ != id) {
message_loop_.Run();
}
}
MessageLoop message_loop_;
scoped_ptr<base::Thread> dbus_thread_;
scoped_refptr<dbus::Bus> bus_;
dbus::ObjectProxy* object_proxy_;
scoped_ptr<Properties> properties_;
scoped_ptr<dbus::TestService> test_service_;
// Properties updated.
std::vector<std::string> updated_properties_;
// Last callback received.
std::string last_callback_;
};
TEST_F(PropertyTest, InitialValues) {
WaitForGetAll();
EXPECT_EQ("TestService", properties_->name.value());
EXPECT_EQ(10, properties_->version.value());
std::vector<std::string> methods = properties_->methods.value();
ASSERT_EQ(4U, methods.size());
EXPECT_EQ("Echo", methods[0]);
EXPECT_EQ("SlowEcho", methods[1]);
EXPECT_EQ("AsyncEcho", methods[2]);
EXPECT_EQ("BrokenMethod", methods[3]);
std::vector<dbus::ObjectPath> objects = properties_->objects.value();
ASSERT_EQ(1U, objects.size());
EXPECT_EQ(dbus::ObjectPath("/TestObjectPath"), objects[0]);
}
TEST_F(PropertyTest, UpdatedValues) {
WaitForGetAll();
// Update the value of the "Name" property, this value should not change.
properties_->name.Get(base::Bind(&PropertyTest::PropertyCallback,
base::Unretained(this),
"Name"));
WaitForCallback("Name");
WaitForUpdates(1);
EXPECT_EQ("TestService", properties_->name.value());
// Update the value of the "Version" property, this value should be changed.
properties_->version.Get(base::Bind(&PropertyTest::PropertyCallback,
base::Unretained(this),
"Version"));
WaitForCallback("Version");
WaitForUpdates(1);
EXPECT_EQ(20, properties_->version.value());
// Update the value of the "Methods" property, this value should not change
// and should not grow to contain duplicate entries.
properties_->methods.Get(base::Bind(&PropertyTest::PropertyCallback,
base::Unretained(this),
"Methods"));
WaitForCallback("Methods");
WaitForUpdates(1);
std::vector<std::string> methods = properties_->methods.value();
ASSERT_EQ(4U, methods.size());
EXPECT_EQ("Echo", methods[0]);
EXPECT_EQ("SlowEcho", methods[1]);
EXPECT_EQ("AsyncEcho", methods[2]);
EXPECT_EQ("BrokenMethod", methods[3]);
// Update the value of the "Objects" property, this value should not change
// and should not grow to contain duplicate entries.
properties_->objects.Get(base::Bind(&PropertyTest::PropertyCallback,
base::Unretained(this),
"Objects"));
WaitForCallback("Objects");
WaitForUpdates(1);
std::vector<dbus::ObjectPath> objects = properties_->objects.value();
ASSERT_EQ(1U, objects.size());
EXPECT_EQ(dbus::ObjectPath("/TestObjectPath"), objects[0]);
}
TEST_F(PropertyTest, Get) {
WaitForGetAll();
// Ask for the new Version property.
properties_->version.Get(base::Bind(&PropertyTest::PropertyCallback,
base::Unretained(this),
"Get"));
WaitForCallback("Get");
// Make sure we got a property update too.
WaitForUpdates(1);
EXPECT_EQ(20, properties_->version.value());
}
TEST_F(PropertyTest, Set) {
WaitForGetAll();
// Set a new name.
properties_->name.Set("NewService",
base::Bind(&PropertyTest::PropertyCallback,
base::Unretained(this),
"Set"));
WaitForCallback("Set");
// TestService sends a property update.
WaitForUpdates(1);
EXPECT_EQ("NewService", properties_->name.value());
}
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