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// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <memory>
#include "base/memory/raw_ptr.h"
#include "base/memory/ref_counted.h"
#include "base/run_loop.h"
#include "base/test/task_environment.h"
#include "dbus/bus.h"
#include "dbus/message.h"
#include "dbus/object_path.h"
#include "dbus/object_proxy.h"
#include "dbus/test_service.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace dbus {
// The end-to-end test exercises the synchronous APIs in ObjectProxy and
// ExportedObject. The test will launch a thread for the service side
// operations (i.e. ExportedObject side).
class EndToEndSyncTest : public testing::Test {
public:
EndToEndSyncTest() = default;
void SetUp() override {
// Start the test service;
TestService::Options options;
test_service_ = std::make_unique<TestService>(options);
ASSERT_TRUE(test_service_->StartService());
test_service_->WaitUntilServiceIsStarted();
ASSERT_FALSE(test_service_->HasDBusThread());
// Create the client.
Bus::Options client_bus_options;
client_bus_options.bus_type = Bus::SESSION;
client_bus_options.connection_type = Bus::PRIVATE;
client_bus_ = new Bus(client_bus_options);
object_proxy_ = client_bus_->GetObjectProxy(
test_service_->service_name(),
ObjectPath("/org/chromium/TestObject"));
ASSERT_FALSE(client_bus_->HasDBusThread());
}
void TearDown() override {
test_service_->ShutdownAndBlock();
test_service_->Stop();
client_bus_->ShutdownAndBlock();
}
protected:
base::test::SingleThreadTaskEnvironment task_environment_{
base::test::SingleThreadTaskEnvironment::MainThreadType::IO};
std::unique_ptr<TestService> test_service_;
scoped_refptr<Bus> client_bus_;
raw_ptr<ObjectProxy, DanglingUntriaged> object_proxy_;
};
TEST_F(EndToEndSyncTest, Echo) {
const std::string kHello = "hello";
// Create the method call.
MethodCall method_call("org.chromium.TestInterface", "Echo");
MessageWriter writer(&method_call);
writer.AppendString(kHello);
// Call the method.
const int timeout_ms = ObjectProxy::TIMEOUT_USE_DEFAULT;
auto result = object_proxy_->CallMethodAndBlock(&method_call, timeout_ms);
ASSERT_TRUE(result.has_value());
// Check the response. kHello should be echoed back.
MessageReader reader(result->get());
std::string returned_message;
ASSERT_TRUE(reader.PopString(&returned_message));
EXPECT_EQ(kHello, returned_message);
}
TEST_F(EndToEndSyncTest, Timeout) {
const std::string kHello = "hello";
// Create the method call.
MethodCall method_call("org.chromium.TestInterface", "DelayedEcho");
MessageWriter writer(&method_call);
writer.AppendString(kHello);
// Call the method with timeout of 0ms.
const int timeout_ms = 0;
auto result = object_proxy_->CallMethodAndBlock(&method_call, timeout_ms);
// Should fail because of timeout.
ASSERT_FALSE(result.has_value());
}
TEST_F(EndToEndSyncTest, NonexistentMethod) {
MethodCall method_call("org.chromium.TestInterface", "Nonexistent");
const int timeout_ms = ObjectProxy::TIMEOUT_USE_DEFAULT;
auto result = object_proxy_->CallMethodAndBlock(&method_call, timeout_ms);
ASSERT_FALSE(result.has_value());
}
TEST_F(EndToEndSyncTest, BrokenMethod) {
MethodCall method_call("org.chromium.TestInterface", "BrokenMethod");
const int timeout_ms = ObjectProxy::TIMEOUT_USE_DEFAULT;
auto result = object_proxy_->CallMethodAndBlock(&method_call, timeout_ms);
ASSERT_FALSE(result.has_value());
}
TEST_F(EndToEndSyncTest, InvalidServiceName) {
// Bus name cannot contain '/'.
const std::string invalid_service_name = ":1/2";
// Replace object proxy with new one.
object_proxy_ = client_bus_->GetObjectProxy(
invalid_service_name, ObjectPath("/org/chromium/TestObject"));
MethodCall method_call("org.chromium.TestInterface", "Echo");
const int timeout_ms = ObjectProxy::TIMEOUT_USE_DEFAULT;
auto result = object_proxy_->CallMethodAndBlock(&method_call, timeout_ms);
ASSERT_FALSE(result.has_value());
}
TEST_F(EndToEndSyncTest, ConnectToSignalAndBlock) {
constexpr char kMessage[] = "hello";
base::RunLoop run_loop;
std::string test_signal_string;
EXPECT_TRUE(object_proxy_->ConnectToSignalAndBlock(
"org.chromium.TestInterface", "Test",
base::BindRepeating(
[](base::OnceClosure quit_closure, std::string* return_string,
Signal* signal) {
MessageReader reader(signal);
ASSERT_TRUE(reader.PopString(return_string));
std::move(quit_closure).Run();
},
run_loop.QuitClosure(), &test_signal_string)));
test_service_->SendTestSignal(kMessage);
run_loop.Run();
EXPECT_EQ(test_signal_string, kMessage);
// Ensure resources on the DBus thread are cleaned up.
task_environment_.RunUntilIdle();
}
} // namespace dbus