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// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifdef UNSAFE_BUFFERS_BUILD
// TODO(crbug.com/40285824): Remove this and convert code to safer constructs.
#pragma allow_unsafe_buffers
#endif
#include "ui/base/glib/scoped_gsignal.h"
#include "base/functional/bind.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "ui/base/glib/scoped_gobject.h"
namespace ui {
namespace {
G_DECLARE_FINAL_TYPE(TestObject, test_object, TEST, OBJECT, GObject)
// Used by G_DECLARE_FINAL_TYPE above.
struct _TestObject {
GObject parent_instance;
};
G_DEFINE_TYPE(TestObject, test_object, G_TYPE_OBJECT)
// Used by G_DEFINE_TYPE above.
void test_object_class_init(TestObjectClass*) {
g_signal_newv("some-signal", test_object_get_type(),
(GSignalFlags)(G_SIGNAL_RUN_LAST | G_SIGNAL_NO_RECURSE |
G_SIGNAL_NO_HOOKS),
nullptr, nullptr, nullptr, nullptr, G_TYPE_NONE, 0, nullptr);
}
// Used by G_DEFINE_TYPE above.
void test_object_init(TestObject* self) {}
ScopedGObject<GObject> CreateGObject() {
return TakeGObject(G_OBJECT(g_object_new(test_object_get_type(), nullptr)));
}
void EmitSignal(GObject* instance, const gchar* detailed_signal) {
g_signal_emit_by_name(instance, detailed_signal);
}
} // namespace
TEST(ScopedGSignalTest, Empty) {
ScopedGSignal signal;
EXPECT_FALSE(signal.Connected());
}
TEST(ScopedGSignalTest, Construction) {
auto instance = CreateGObject();
ASSERT_TRUE(instance.get());
ScopedGSignal signal(instance, "some-signal",
base::BindRepeating([](GObject* obj) {}));
EXPECT_TRUE(signal.Connected());
}
TEST(ScopedGSignalTest, DisconnectsOnDestruction) {
auto instance = CreateGObject();
ASSERT_TRUE(instance.get());
bool signal_fired = false;
{
ScopedGSignal signal(
instance, "some-signal",
base::BindRepeating([](bool* fired, GObject* obj) { *fired = true; },
&signal_fired));
EXPECT_TRUE(signal.Connected());
}
EmitSignal(instance, "some-signal");
EXPECT_FALSE(signal_fired);
}
TEST(ScopedGSignalTest, DisconnectsOnGClosureFinalize) {
auto instance = CreateGObject();
ASSERT_TRUE(instance.get());
ScopedGSignal signal(instance, "some-signal",
base::BindRepeating([](GObject* obj) {}));
EXPECT_TRUE(signal.Connected());
instance.Reset();
EXPECT_FALSE(signal.Connected());
}
TEST(ScopedGSignalTest, DisconnectsOnReset) {
auto instance = CreateGObject();
ASSERT_TRUE(instance.get());
ScopedGSignal signal(instance, "some-signal",
base::BindRepeating([](GObject* obj) {}));
EXPECT_TRUE(signal.Connected());
signal.Reset();
EXPECT_FALSE(signal.Connected());
}
TEST(ScopedGSignalTest, MoveConstruct) {
auto instance = CreateGObject();
ASSERT_TRUE(instance.get());
ScopedGSignal signal1(instance, "some-signal",
base::BindRepeating([](GObject* obj) {}));
EXPECT_TRUE(signal1.Connected());
ScopedGSignal signal2{std::move(signal1)};
EXPECT_FALSE(signal1.Connected());
EXPECT_TRUE(signal2.Connected());
}
TEST(ScopedGSignalTest, MoveAssign) {
auto instance = CreateGObject();
ASSERT_TRUE(instance.get());
ScopedGSignal signal1(instance, "some-signal",
base::BindRepeating([](GObject* obj) {}));
EXPECT_TRUE(signal1.Connected());
ScopedGSignal signal2 = std::move(signal1);
EXPECT_FALSE(signal1.Connected());
EXPECT_TRUE(signal2.Connected());
}
TEST(ScopedGSignalTest, SignalHandlerCalled) {
auto instance = CreateGObject();
ASSERT_TRUE(instance.get());
bool signal_fired = false;
ScopedGSignal signal(
instance, "some-signal",
base::BindRepeating([](bool* fired, GObject* obj) { *fired = true; },
&signal_fired));
EXPECT_TRUE(signal.Connected());
EmitSignal(instance, "some-signal");
EXPECT_TRUE(signal_fired);
}
TEST(ScopedGSignalTest, InvalidSignal) {
auto instance = CreateGObject();
ASSERT_TRUE(instance.get());
ScopedGSignal signal(instance, "invalid-signal",
base::BindRepeating([](GObject* obj) {}));
EXPECT_FALSE(signal.Connected());
}
} // namespace ui
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