Add a way to iterate over a specific op type
Also split the OpBuffer tests out from CanvasOpTests
Test: this
Change-Id: I0fbc726d108bfa4333c01daf7aedacca8716e6ae
diff --git a/libs/hwui/tests/unit/OpBufferTests.cpp b/libs/hwui/tests/unit/OpBufferTests.cpp
new file mode 100644
index 0000000..c0ae943
--- /dev/null
+++ b/libs/hwui/tests/unit/OpBufferTests.cpp
@@ -0,0 +1,190 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * 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 <gtest/gtest.h>
+
+#include <canvas/OpBuffer.h>
+
+using namespace android;
+using namespace android::uirenderer;
+
+enum MockTypes {
+ Lifecycle,
+ NoOp,
+ IntHolder,
+ COUNT
+};
+
+using Op = MockTypes;
+
+template<MockTypes T>
+struct MockOp;
+
+template<MockTypes T>
+struct MockOpContainer {
+ OpBufferItemHeader<MockTypes> header;
+ MockOp<T> impl;
+
+ MockOpContainer(MockOp<T>&& impl) : impl(std::move(impl)) {}
+};
+
+struct LifecycleTracker {
+ int ctor_count = 0;
+ int dtor_count = 0;
+
+ int alive() { return ctor_count - dtor_count; }
+};
+
+template<>
+struct MockOp<MockTypes::Lifecycle> {
+ MockOp() = delete;
+ void operator=(const MockOp&) = delete;
+
+ MockOp(LifecycleTracker* tracker) : tracker(tracker) {
+ tracker->ctor_count += 1;
+ }
+
+ MockOp(const MockOp& other) {
+ tracker = other.tracker;
+ tracker->ctor_count += 1;
+ }
+
+ ~MockOp() {
+ tracker->dtor_count += 1;
+ }
+
+ LifecycleTracker* tracker = nullptr;
+};
+
+template<>
+struct MockOp<MockTypes::NoOp> {};
+
+template<>
+struct MockOp<MockTypes::IntHolder> {
+ int value = -1;
+};
+
+struct MockBuffer : public OpBuffer<MockTypes, MockOpContainer> {
+ template <MockTypes T>
+ void push(MockOp<T>&& op) {
+ push_container(MockOpContainer<T>{std::move(op)});
+ }
+};
+
+template<typename T>
+static int countItems(const T& t) {
+ int count = 0;
+ t.for_each([&](auto i) {
+ count++;
+ });
+ return count;
+}
+
+TEST(OpBuffer, lifecycleCheck) {
+ LifecycleTracker tracker;
+ {
+ MockBuffer buffer;
+ buffer.push_container(MockOpContainer<Op::Lifecycle> {
+ MockOp<MockTypes::Lifecycle>{&tracker}
+ });
+ EXPECT_EQ(tracker.alive(), 1);
+ buffer.clear();
+ EXPECT_EQ(tracker.alive(), 0);
+ }
+ EXPECT_EQ(tracker.alive(), 0);
+}
+
+TEST(OpBuffer, lifecycleCheckMove) {
+ LifecycleTracker tracker;
+ {
+ MockBuffer buffer;
+ buffer.push_container(MockOpContainer<Op::Lifecycle> {
+ MockOp<MockTypes::Lifecycle>{&tracker}
+ });
+ EXPECT_EQ(tracker.alive(), 1);
+ {
+ MockBuffer other(std::move(buffer));
+ EXPECT_EQ(tracker.alive(), 1);
+ EXPECT_EQ(buffer.size(), 0);
+ EXPECT_GT(other.size(), 0);
+ EXPECT_EQ(1, countItems(other));
+ EXPECT_EQ(0, countItems(buffer));
+
+ other.push_container(MockOpContainer<MockTypes::Lifecycle> {
+ MockOp<MockTypes::Lifecycle>{&tracker}
+ });
+
+ EXPECT_EQ(2, countItems(other));
+ EXPECT_EQ(2, tracker.alive());
+
+ buffer.push_container(MockOpContainer<MockTypes::Lifecycle> {
+ MockOp<MockTypes::Lifecycle>{&tracker}
+ });
+ EXPECT_EQ(1, countItems(buffer));
+ EXPECT_EQ(3, tracker.alive());
+
+ buffer = std::move(other);
+ EXPECT_EQ(2, countItems(buffer));
+ EXPECT_EQ(2, tracker.alive());
+ }
+ EXPECT_EQ(2, countItems(buffer));
+ EXPECT_EQ(2, tracker.alive());
+ buffer.clear();
+ EXPECT_EQ(0, countItems(buffer));
+ EXPECT_EQ(0, tracker.alive());
+ }
+ EXPECT_EQ(tracker.alive(), 0);
+}
+
+TEST(OpBuffer, verifyConst) {
+ MockBuffer buffer;
+ buffer.push<Op::IntHolder>({42});
+ buffer.for_each([](auto op) {
+ static_assert(std::is_const_v<std::remove_reference_t<decltype(*op)>>,
+ "Expected container to be const");
+ });
+}
+
+TEST(OpBuffer, filterView) {
+ MockBuffer buffer;
+ buffer.push<Op::NoOp>({});
+ buffer.push<Op::IntHolder>({0});
+ buffer.push<Op::IntHolder>({1});
+ buffer.push<Op::NoOp>({});
+ buffer.push<Op::NoOp>({});
+ buffer.push<Op::IntHolder>({2});
+ buffer.push<Op::NoOp>({});
+ buffer.push<Op::NoOp>({});
+ buffer.push<Op::NoOp>({});
+ buffer.push<Op::NoOp>({});
+
+
+ int index = 0;
+ for (const auto& it : buffer.filter<Op::IntHolder>()) {
+ ASSERT_EQ(Op::IntHolder, it.header.type);
+ EXPECT_EQ(index, it.impl.value);
+ index++;
+ }
+ EXPECT_EQ(index, 3);
+
+ int count = 0;
+ for (const auto& it : buffer.filter<Op::NoOp>()) {
+ ASSERT_EQ(Op::NoOp, it.header.type);
+ count++;
+ }
+ EXPECT_EQ(count, 7);
+}
+