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// Copyright 2021 The Dawn & Tint Authors
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this
// list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include "dawn/tests/unittests/wire/WireTest.h"
#include "dawn/wire/WireClient.h"
#include "dawn/wire/WireServer.h"
namespace dawn::wire {
namespace {
using testing::Mock;
using testing::NotNull;
using testing::Return;
class WireInjectInstanceTests : public WireTest {
public:
WireInjectInstanceTests() {}
~WireInjectInstanceTests() override = default;
};
// Test that reserving and injecting an instance makes calls on the client object forward to the
// server object correctly.
TEST_F(WireInjectInstanceTests, CallAfterReserveInject) {
auto reserved = GetWireClient()->ReserveInstance();
WGPUInstance serverInstance = api.GetNewInstance();
EXPECT_CALL(api, InstanceAddRef(serverInstance));
ASSERT_TRUE(GetWireServer()->InjectInstance(serverInstance, reserved.handle));
WGPUSurfaceDescriptor surfaceDesc = {};
wgpuInstanceCreateSurface(reserved.instance, &surfaceDesc);
WGPUSurface serverSurface = api.GetNewSurface();
EXPECT_CALL(api, InstanceCreateSurface(serverInstance, NotNull()))
.WillOnce(Return(serverSurface));
FlushClient();
}
// Test that reserve correctly returns different IDs each time.
TEST_F(WireInjectInstanceTests, ReserveDifferentIDs) {
auto reserved1 = GetWireClient()->ReserveInstance();
auto reserved2 = GetWireClient()->ReserveInstance();
ASSERT_NE(reserved1.handle.id, reserved2.handle.id);
ASSERT_NE(reserved1.instance, reserved2.instance);
}
// Test that injecting the same id fails.
TEST_F(WireInjectInstanceTests, InjectExistingID) {
auto reserved = GetWireClient()->ReserveInstance();
WGPUInstance serverInstance = api.GetNewInstance();
EXPECT_CALL(api, InstanceAddRef(serverInstance));
ASSERT_TRUE(GetWireServer()->InjectInstance(serverInstance, reserved.handle));
// ID already in use, call fails.
ASSERT_FALSE(GetWireServer()->InjectInstance(serverInstance, reserved.handle));
}
// Test that the server only borrows the instance and does a single addref-release
TEST_F(WireInjectInstanceTests, InjectedInstanceLifetime) {
auto reserved = GetWireClient()->ReserveInstance();
// Injecting the instance adds a reference
WGPUInstance serverInstance = api.GetNewInstance();
EXPECT_CALL(api, InstanceAddRef(serverInstance));
ASSERT_TRUE(GetWireServer()->InjectInstance(serverInstance, reserved.handle));
// Releasing the instance removes a single reference.
wgpuInstanceRelease(reserved.instance);
EXPECT_CALL(api, InstanceRelease(serverInstance));
FlushClient();
// Deleting the server doesn't release a second reference.
DeleteServer();
Mock::VerifyAndClearExpectations(&api);
}
// Test that a device reservation can be reclaimed. This is necessary to
// avoid leaking ObjectIDs for reservations that are never injected.
TEST_F(WireInjectInstanceTests, ReclaimInstanceReservation) {
// Test that doing a reservation and full release is an error.
{
auto reserved = GetWireClient()->ReserveInstance();
wgpuInstanceRelease(reserved.instance);
FlushClient(false);
}
// Test that doing a reservation and then reclaiming it recycles the ID.
{
auto reserved1 = GetWireClient()->ReserveInstance();
GetWireClient()->ReclaimInstanceReservation(reserved1);
auto reserved2 = GetWireClient()->ReserveInstance();
// The ID is the same, but the generation is still different.
ASSERT_EQ(reserved1.handle.id, reserved2.handle.id);
ASSERT_NE(reserved1.handle.generation, reserved2.handle.generation);
// No errors should occur.
FlushClient();
}
}
} // anonymous namespace
} // namespace dawn::wire