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// Copyright 2014 The Chromium OS 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 <brillo/dbus/dbus_signal_handler.h>
#include <string>
#include <base/bind.h>
#include <brillo/dbus/dbus_param_writer.h>
#include <dbus/mock_bus.h>
#include <dbus/mock_object_proxy.h>
#include <gmock/gmock.h>
#include <gtest/gtest.h>
using testing::AnyNumber;
using testing::Return;
using testing::SaveArg;
using testing::_;
namespace brillo {
namespace dbus_utils {
const char kTestPath[] = "/test/path";
const char kTestServiceName[] = "org.test.Object";
const char kInterface[] = "org.test.Object.TestInterface";
const char kSignal[] = "TestSignal";
class DBusSignalHandlerTest : public testing::Test {
public:
void SetUp() override {
dbus::Bus::Options options;
options.bus_type = dbus::Bus::SYSTEM;
bus_ = new dbus::MockBus(options);
// By default, don't worry about threading assertions.
EXPECT_CALL(*bus_, AssertOnOriginThread()).Times(AnyNumber());
EXPECT_CALL(*bus_, AssertOnDBusThread()).Times(AnyNumber());
// Use a mock object proxy.
mock_object_proxy_ = new dbus::MockObjectProxy(
bus_.get(), kTestServiceName, dbus::ObjectPath(kTestPath));
EXPECT_CALL(*bus_,
GetObjectProxy(kTestServiceName, dbus::ObjectPath(kTestPath)))
.WillRepeatedly(Return(mock_object_proxy_.get()));
}
void TearDown() override { bus_ = nullptr; }
protected:
template<typename SignalHandlerSink, typename... Args>
void CallSignal(SignalHandlerSink* sink, Args... args) {
dbus::ObjectProxy::SignalCallback signal_callback;
EXPECT_CALL(*mock_object_proxy_,
DoConnectToSignal(kInterface, kSignal, _, _))
.WillOnce(SaveArg<2>(&signal_callback));
brillo::dbus_utils::ConnectToSignal(
mock_object_proxy_.get(),
kInterface,
kSignal,
base::Bind(&SignalHandlerSink::Handler, base::Unretained(sink)),
{});
dbus::Signal signal(kInterface, kSignal);
dbus::MessageWriter writer(&signal);
DBusParamWriter::Append(&writer, args...);
signal_callback.Run(&signal);
}
scoped_refptr<dbus::MockBus> bus_;
scoped_refptr<dbus::MockObjectProxy> mock_object_proxy_;
};
TEST_F(DBusSignalHandlerTest, ConnectToSignal) {
EXPECT_CALL(*mock_object_proxy_, DoConnectToSignal(kInterface, kSignal, _, _))
.Times(1);
brillo::dbus_utils::ConnectToSignal(
mock_object_proxy_.get(), kInterface, kSignal, base::Closure{}, {});
}
TEST_F(DBusSignalHandlerTest, CallSignal_3Args) {
class SignalHandlerSink {
public:
MOCK_METHOD(void, Handler, (int, int, double));
} sink;
EXPECT_CALL(sink, Handler(10, 20, 30.5)).Times(1);
CallSignal(&sink, 10, 20, 30.5);
}
TEST_F(DBusSignalHandlerTest, CallSignal_2Args) {
class SignalHandlerSink {
public:
// Take string both by reference and by value to make sure this works too.
MOCK_METHOD(void, Handler, (const std::string&, std::string));
} sink;
EXPECT_CALL(sink, Handler(std::string{"foo"}, std::string{"bar"})).Times(1);
CallSignal(&sink, std::string{"foo"}, std::string{"bar"});
}
TEST_F(DBusSignalHandlerTest, CallSignal_NoArgs) {
class SignalHandlerSink {
public:
MOCK_METHOD(void, Handler, ());
} sink;
EXPECT_CALL(sink, Handler()).Times(1);
CallSignal(&sink);
}
TEST_F(DBusSignalHandlerTest, CallSignal_Error_TooManyArgs) {
class SignalHandlerSink {
public:
MOCK_METHOD(void, Handler, ());
} sink;
// Handler() expects no args, but we send an int.
EXPECT_CALL(sink, Handler()).Times(0);
CallSignal(&sink, 5);
}
TEST_F(DBusSignalHandlerTest, CallSignal_Error_TooFewArgs) {
class SignalHandlerSink {
public:
MOCK_METHOD(void, Handler, (std::string, bool));
} sink;
// Handler() expects 2 args while we send it just one.
EXPECT_CALL(sink, Handler(_, _)).Times(0);
CallSignal(&sink, std::string{"bar"});
}
TEST_F(DBusSignalHandlerTest, CallSignal_Error_TypeMismatchArgs) {
class SignalHandlerSink {
public:
MOCK_METHOD(void, Handler, (std::string, bool));
} sink;
// Handler() expects "sb" while we send it "ii".
EXPECT_CALL(sink, Handler(_, _)).Times(0);
CallSignal(&sink, 1, 2);
}
} // namespace dbus_utils
} // namespace brillo
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