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/*
* 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);
}
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