Implement Queue::OnSubmittedWorkDone

This is the replacement for Fence in the single-queue WebGPU world. To
keep this CL focused, it doesn't deprecate the fences yet.

Bug: chromium:1177476

Change-Id: I09d60732ec67bc1deb49f7a9d57699c049475acf
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/41723
Auto-Submit: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>

src/tests/unittests/validation/QueueOnSubmittedWorkDoneValidationTests.cpp

@@ -0,0 +1,58 @@
+// Copyright 2021 The Dawn Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "tests/unittests/validation/ValidationTest.h"
+
+#include <gmock/gmock.h>
+
+using namespace testing;
+
+class MockQueueWorkDoneCallback {
+  public:
+    MOCK_METHOD(void, Call, (WGPUQueueWorkDoneStatus status, void* userdata));
+};
+
+static std::unique_ptr<MockQueueWorkDoneCallback> mockQueueWorkDoneCallback;
+static void ToMockQueueWorkDone(WGPUQueueWorkDoneStatus status, void* userdata) {
+    mockQueueWorkDoneCallback->Call(status, userdata);
+}
+
+class QueueOnSubmittedWorkDoneValidationTests : public ValidationTest {
+  protected:
+    void SetUp() override {
+        ValidationTest::SetUp();
+        mockQueueWorkDoneCallback = std::make_unique<MockQueueWorkDoneCallback>();
+    }
+
+    void TearDown() override {
+        mockQueueWorkDoneCallback = nullptr;
+        ValidationTest::TearDown();
+    }
+};
+
+// Test that OnSubmittedWorkDone can be called as soon as the queue is created.
+TEST_F(QueueOnSubmittedWorkDoneValidationTests, CallBeforeSubmits) {
+    EXPECT_CALL(*mockQueueWorkDoneCallback, Call(WGPUQueueWorkDoneStatus_Success, this)).Times(1);
+    device.GetQueue().OnSubmittedWorkDone(0u, ToMockQueueWorkDone, this);
+
+    WaitForAllOperations(device);
+}
+
+// Test that OnSubmittedWorkDone is an error if signalValue isn't 0.
+TEST_F(QueueOnSubmittedWorkDoneValidationTests, SignaledValueNotZeroIsInvalid) {
+    EXPECT_CALL(*mockQueueWorkDoneCallback, Call(WGPUQueueWorkDoneStatus_Error, this)).Times(1);
+    ASSERT_DEVICE_ERROR(device.GetQueue().OnSubmittedWorkDone(1u, ToMockQueueWorkDone, this));
+
+    WaitForAllOperations(device);
+}