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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/bus.h"
#include "base/bind.h"
#include "base/message_loop.h"
#include "base/memory/ref_counted.h"
#include "base/threading/thread.h"
#include "dbus/exported_object.h"
#include "dbus/object_path.h"
#include "dbus/object_proxy.h"
#include "dbus/scoped_dbus_error.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace {
// Used to test AddFilterFunction().
DBusHandlerResult DummyHandler(DBusConnection* connection,
DBusMessage* raw_message,
void* user_data) {
return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
}
} // namespace
TEST(BusTest, GetObjectProxy) {
dbus::Bus::Options options;
scoped_refptr<dbus::Bus> bus = new dbus::Bus(options);
dbus::ObjectProxy* object_proxy1 =
bus->GetObjectProxy("org.chromium.TestService",
dbus::ObjectPath("/org/chromium/TestObject"));
ASSERT_TRUE(object_proxy1);
// This should return the same object.
dbus::ObjectProxy* object_proxy2 =
bus->GetObjectProxy("org.chromium.TestService",
dbus::ObjectPath("/org/chromium/TestObject"));
ASSERT_TRUE(object_proxy2);
EXPECT_EQ(object_proxy1, object_proxy2);
// This should not.
dbus::ObjectProxy* object_proxy3 =
bus->GetObjectProxy(
"org.chromium.TestService",
dbus::ObjectPath("/org/chromium/DifferentTestObject"));
ASSERT_TRUE(object_proxy3);
EXPECT_NE(object_proxy1, object_proxy3);
bus->ShutdownAndBlock();
}
TEST(BusTest, GetObjectProxyIgnoreUnknownService) {
dbus::Bus::Options options;
scoped_refptr<dbus::Bus> bus = new dbus::Bus(options);
dbus::ObjectProxy* object_proxy1 =
bus->GetObjectProxyWithOptions(
"org.chromium.TestService",
dbus::ObjectPath("/org/chromium/TestObject"),
dbus::ObjectProxy::IGNORE_SERVICE_UNKNOWN_ERRORS);
ASSERT_TRUE(object_proxy1);
// This should return the same object.
dbus::ObjectProxy* object_proxy2 =
bus->GetObjectProxyWithOptions(
"org.chromium.TestService",
dbus::ObjectPath("/org/chromium/TestObject"),
dbus::ObjectProxy::IGNORE_SERVICE_UNKNOWN_ERRORS);
ASSERT_TRUE(object_proxy2);
EXPECT_EQ(object_proxy1, object_proxy2);
// This should not.
dbus::ObjectProxy* object_proxy3 =
bus->GetObjectProxyWithOptions(
"org.chromium.TestService",
dbus::ObjectPath("/org/chromium/DifferentTestObject"),
dbus::ObjectProxy::IGNORE_SERVICE_UNKNOWN_ERRORS);
ASSERT_TRUE(object_proxy3);
EXPECT_NE(object_proxy1, object_proxy3);
bus->ShutdownAndBlock();
}
TEST(BusTest, RemoveObjectProxy) {
// Setup the current thread's MessageLoop.
MessageLoop message_loop;
// Start the D-Bus thread.
base::Thread::Options thread_options;
thread_options.message_loop_type = MessageLoop::TYPE_IO;
base::Thread dbus_thread("D-Bus thread");
dbus_thread.StartWithOptions(thread_options);
// Create the bus.
dbus::Bus::Options options;
options.dbus_task_runner = dbus_thread.message_loop_proxy();
scoped_refptr<dbus::Bus> bus = new dbus::Bus(options);
ASSERT_FALSE(bus->shutdown_completed());
// Try to remove a non existant object proxy should return false.
ASSERT_FALSE(
bus->RemoveObjectProxy("org.chromium.TestService",
dbus::ObjectPath("/org/chromium/TestObject"),
base::Bind(&base::DoNothing)));
dbus::ObjectProxy* object_proxy1 =
bus->GetObjectProxy("org.chromium.TestService",
dbus::ObjectPath("/org/chromium/TestObject"));
ASSERT_TRUE(object_proxy1);
// Increment the reference count to the object proxy to avoid destroying it
// while removing the object.
object_proxy1->AddRef();
// Remove the object from the bus. This will invalidate any other usage of
// object_proxy1 other than destroy it. We keep this object for a comparison
// at a later time.
ASSERT_TRUE(
bus->RemoveObjectProxy("org.chromium.TestService",
dbus::ObjectPath("/org/chromium/TestObject"),
base::Bind(&base::DoNothing)));
// This should return a different object because the first object was removed
// from the bus, but not deleted from memory.
dbus::ObjectProxy* object_proxy2 =
bus->GetObjectProxy("org.chromium.TestService",
dbus::ObjectPath("/org/chromium/TestObject"));
ASSERT_TRUE(object_proxy2);
// Compare the new object with the first object. The first object still exists
// thanks to the increased reference.
EXPECT_NE(object_proxy1, object_proxy2);
// Release object_proxy1.
object_proxy1->Release();
// Shut down synchronously.
bus->ShutdownOnDBusThreadAndBlock();
EXPECT_TRUE(bus->shutdown_completed());
dbus_thread.Stop();
}
TEST(BusTest, GetExportedObject) {
dbus::Bus::Options options;
scoped_refptr<dbus::Bus> bus = new dbus::Bus(options);
dbus::ExportedObject* object_proxy1 =
bus->GetExportedObject(dbus::ObjectPath("/org/chromium/TestObject"));
ASSERT_TRUE(object_proxy1);
// This should return the same object.
dbus::ExportedObject* object_proxy2 =
bus->GetExportedObject(dbus::ObjectPath("/org/chromium/TestObject"));
ASSERT_TRUE(object_proxy2);
EXPECT_EQ(object_proxy1, object_proxy2);
// This should not.
dbus::ExportedObject* object_proxy3 =
bus->GetExportedObject(
dbus::ObjectPath("/org/chromium/DifferentTestObject"));
ASSERT_TRUE(object_proxy3);
EXPECT_NE(object_proxy1, object_proxy3);
bus->ShutdownAndBlock();
}
TEST(BusTest, UnregisterExportedObject) {
// Start the D-Bus thread.
base::Thread::Options thread_options;
thread_options.message_loop_type = MessageLoop::TYPE_IO;
base::Thread dbus_thread("D-Bus thread");
dbus_thread.StartWithOptions(thread_options);
// Create the bus.
dbus::Bus::Options options;
options.dbus_task_runner = dbus_thread.message_loop_proxy();
scoped_refptr<dbus::Bus> bus = new dbus::Bus(options);
ASSERT_FALSE(bus->shutdown_completed());
dbus::ExportedObject* object_proxy1 =
bus->GetExportedObject(dbus::ObjectPath("/org/chromium/TestObject"));
ASSERT_TRUE(object_proxy1);
// Increment the reference count to the object proxy to avoid destroying it
// calling UnregisterExportedObject. This ensures the dbus::ExportedObject is
// not freed from memory. See http://crbug.com/137846 for details.
object_proxy1->AddRef();
bus->UnregisterExportedObject(dbus::ObjectPath("/org/chromium/TestObject"));
// This should return a new object because the object_proxy1 is still in
// alloc'ed memory.
dbus::ExportedObject* object_proxy2 =
bus->GetExportedObject(dbus::ObjectPath("/org/chromium/TestObject"));
ASSERT_TRUE(object_proxy2);
EXPECT_NE(object_proxy1, object_proxy2);
// Release the incremented reference.
object_proxy1->Release();
// Shut down synchronously.
bus->ShutdownOnDBusThreadAndBlock();
EXPECT_TRUE(bus->shutdown_completed());
dbus_thread.Stop();
}
TEST(BusTest, ShutdownAndBlock) {
dbus::Bus::Options options;
scoped_refptr<dbus::Bus> bus = new dbus::Bus(options);
ASSERT_FALSE(bus->shutdown_completed());
// Shut down synchronously.
bus->ShutdownAndBlock();
EXPECT_TRUE(bus->shutdown_completed());
}
TEST(BusTest, ShutdownAndBlockWithDBusThread) {
// Start the D-Bus thread.
base::Thread::Options thread_options;
thread_options.message_loop_type = MessageLoop::TYPE_IO;
base::Thread dbus_thread("D-Bus thread");
dbus_thread.StartWithOptions(thread_options);
// Create the bus.
dbus::Bus::Options options;
options.dbus_task_runner = dbus_thread.message_loop_proxy();
scoped_refptr<dbus::Bus> bus = new dbus::Bus(options);
ASSERT_FALSE(bus->shutdown_completed());
// Shut down synchronously.
bus->ShutdownOnDBusThreadAndBlock();
EXPECT_TRUE(bus->shutdown_completed());
dbus_thread.Stop();
}
TEST(BusTest, AddFilterFunction) {
dbus::Bus::Options options;
scoped_refptr<dbus::Bus> bus = new dbus::Bus(options);
// Should connect before calling AddFilterFunction().
bus->Connect();
int data1 = 100;
int data2 = 200;
ASSERT_TRUE(bus->AddFilterFunction(&DummyHandler, &data1));
// Cannot add the same function with the same data.
ASSERT_FALSE(bus->AddFilterFunction(&DummyHandler, &data1));
// Can add the same function with different data.
ASSERT_TRUE(bus->AddFilterFunction(&DummyHandler, &data2));
ASSERT_TRUE(bus->RemoveFilterFunction(&DummyHandler, &data1));
ASSERT_FALSE(bus->RemoveFilterFunction(&DummyHandler, &data1));
ASSERT_TRUE(bus->RemoveFilterFunction(&DummyHandler, &data2));
bus->ShutdownAndBlock();
}
TEST(BusTest, DoubleAddAndRemoveMatch) {
dbus::Bus::Options options;
scoped_refptr<dbus::Bus> bus = new dbus::Bus(options);
dbus::ScopedDBusError error;
bus->Connect();
// Adds the same rule twice.
bus->AddMatch(
"type='signal',interface='org.chromium.TestService',path='/'",
error.get());
ASSERT_FALSE(error.is_set());
bus->AddMatch(
"type='signal',interface='org.chromium.TestService',path='/'",
error.get());
ASSERT_FALSE(error.is_set());
// Removes the same rule twice.
ASSERT_TRUE(bus->RemoveMatch(
"type='signal',interface='org.chromium.TestService',path='/'",
error.get()));
ASSERT_FALSE(error.is_set());
// The rule should be still in the bus since it was removed only once.
// A second removal shouldn't give an error.
ASSERT_TRUE(bus->RemoveMatch(
"type='signal',interface='org.chromium.TestService',path='/'",
error.get()));
ASSERT_FALSE(error.is_set());
// A third attemp to remove the same rule should fail.
ASSERT_FALSE(bus->RemoveMatch(
"type='signal',interface='org.chromium.TestService',path='/'",
error.get()));
bus->ShutdownAndBlock();
}
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