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// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/dbus/utils/check_for_service_and_start.h"
#include "base/functional/bind.h"
#include "base/run_loop.h"
#include "base/test/task_environment.h"
#include "dbus/bus.h"
#include "dbus/message.h"
#include "dbus/mock_bus.h"
#include "dbus/mock_object_proxy.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
using ::testing::_;
using ::testing::Invoke;
using ::testing::Return;
namespace dbus_utils {
namespace {
MATCHER_P2(MatchMethod, interface, member, "") {
return arg->GetInterface() == interface && arg->GetMember() == member;
}
class CheckForServiceAndStartTest : public testing::Test {
public:
void SetUp() override {
mock_bus_ = base::MakeRefCounted<dbus::MockBus>(dbus::Bus::Options());
mock_dbus_proxy_ = base::MakeRefCounted<dbus::MockObjectProxy>(
mock_bus_.get(), DBUS_SERVICE_DBUS, dbus::ObjectPath(DBUS_PATH_DBUS));
EXPECT_CALL(*mock_bus_, GetObjectProxy(DBUS_SERVICE_DBUS,
dbus::ObjectPath(DBUS_PATH_DBUS)))
.WillRepeatedly(Return(mock_dbus_proxy_.get()));
}
void TearDown() override {
mock_bus_.reset();
mock_dbus_proxy_.reset();
}
protected:
void ExpectNameHasOwner(const std::string& service_name,
bool has_owner,
bool error = false) {
EXPECT_CALL(
*mock_dbus_proxy_,
DoCallMethod(MatchMethod(DBUS_INTERFACE_DBUS, "NameHasOwner"), _, _))
.WillOnce(Invoke([this, service_name, has_owner, error](
dbus::MethodCall* method_call, int timeout_ms,
dbus::ObjectProxy::ResponseCallback* callback) {
dbus::MessageReader reader(method_call);
std::string received_service_name;
EXPECT_TRUE(reader.PopString(&received_service_name));
EXPECT_EQ(received_service_name, service_name);
if (error) {
// Simulate an error by calling the callback with a null response
task_environment_.GetMainThreadTaskRunner()->PostTask(
FROM_HERE, base::BindOnce(std::move(*callback), nullptr));
} else {
response_ = dbus::Response::CreateEmpty();
dbus::MessageWriter writer(response_.get());
writer.AppendBool(has_owner);
task_environment_.GetMainThreadTaskRunner()->PostTask(
FROM_HERE,
base::BindOnce(std::move(*callback), response_.get()));
}
}));
}
void ExpectListActivatableNames(
const std::vector<std::string>& activatable_names) {
EXPECT_CALL(
*mock_dbus_proxy_,
DoCallMethod(MatchMethod(DBUS_INTERFACE_DBUS, "ListActivatableNames"),
_, _))
.WillOnce(Invoke([this, activatable_names](
dbus::MethodCall* method_call, int timeout_ms,
dbus::ObjectProxy::ResponseCallback* callback) {
response_ = dbus::Response::CreateEmpty();
dbus::MessageWriter writer(response_.get());
writer.AppendArrayOfStrings(activatable_names);
task_environment_.GetMainThreadTaskRunner()->PostTask(
FROM_HERE, base::BindOnce(std::move(*callback), response_.get()));
}));
}
void ExpectStartServiceByName(const std::string& service_name,
uint32_t reply_code) {
EXPECT_CALL(
*mock_dbus_proxy_,
DoCallMethodWithErrorResponse(
MatchMethod(DBUS_INTERFACE_DBUS, "StartServiceByName"), _, _))
.WillOnce(
Invoke([this, service_name, reply_code](
dbus::MethodCall* method_call, int timeout_ms,
dbus::ObjectProxy::ResponseOrErrorCallback* callback) {
dbus::MessageReader reader(method_call);
std::string received_service_name;
uint32_t flags;
EXPECT_TRUE(reader.PopString(&received_service_name));
EXPECT_TRUE(reader.PopUint32(&flags));
EXPECT_EQ(received_service_name, service_name);
EXPECT_EQ(flags, 0U);
response_ = dbus::Response::CreateEmpty();
dbus::MessageWriter writer(response_.get());
writer.AppendUint32(reply_code);
task_environment_.GetMainThreadTaskRunner()->PostTask(
FROM_HERE, base::BindOnce(std::move(*callback),
response_.get(), nullptr));
}));
}
void RunCheckForServiceAndStart(const std::string& service_name,
std::optional<bool>* service_started_out) {
base::RunLoop run_loop;
CheckForServiceAndStartCallback callback = base::BindOnce(
[](std::optional<bool>* service_started_out,
base::OnceClosure quit_closure,
std::optional<bool> service_started_in) {
*service_started_out = service_started_in;
std::move(quit_closure).Run();
},
service_started_out, run_loop.QuitClosure());
CheckForServiceAndStart(mock_bus_, service_name, std::move(callback));
run_loop.Run();
}
base::test::SingleThreadTaskEnvironment task_environment_;
std::unique_ptr<dbus::Response> response_;
scoped_refptr<dbus::MockBus> mock_bus_;
scoped_refptr<dbus::MockObjectProxy> mock_dbus_proxy_;
};
TEST_F(CheckForServiceAndStartTest, ServiceAlreadyRunning) {
const std::string kServiceName = "org.example.Service";
ExpectNameHasOwner(kServiceName, true);
std::optional<bool> service_started;
RunCheckForServiceAndStart(kServiceName, &service_started);
EXPECT_TRUE(service_started.has_value());
EXPECT_TRUE(service_started.value());
}
TEST_F(CheckForServiceAndStartTest, ServiceNotRunningButActivatable) {
const std::string kServiceName = "org.example.Service";
ExpectNameHasOwner(kServiceName, false);
ExpectListActivatableNames({kServiceName, "org.other.Service"});
ExpectStartServiceByName(kServiceName, DBUS_START_REPLY_SUCCESS);
std::optional<bool> service_started;
RunCheckForServiceAndStart(kServiceName, &service_started);
ASSERT_TRUE(service_started.has_value());
EXPECT_TRUE(service_started.value());
}
TEST_F(CheckForServiceAndStartTest, ServiceNotRunningAndNotActivatable) {
const std::string kServiceName = "org.example.Service";
ExpectNameHasOwner(kServiceName, false);
ExpectListActivatableNames({"org.other.Service"});
std::optional<bool> service_started;
RunCheckForServiceAndStart(kServiceName, &service_started);
ASSERT_TRUE(service_started.has_value());
EXPECT_FALSE(service_started.value());
}
TEST_F(CheckForServiceAndStartTest, NameHasOwnerError) {
const std::string kServiceName = "org.example.Service";
ExpectNameHasOwner(kServiceName, false, true); // Simulate an error
std::optional<bool> service_started;
RunCheckForServiceAndStart(kServiceName, &service_started);
EXPECT_FALSE(service_started.has_value());
}
} // namespace
} // namespace dbus_utils
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