96 lines
2.7 KiB
C++
96 lines
2.7 KiB
C++
// Copyright 2022 The Android Open Source Project
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "aemu/base/LruCache.h"
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#include <cstdint>
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#include <string>
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#include <gmock/gmock.h>
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#include <gtest/gtest.h>
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namespace android {
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namespace base {
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namespace {
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using ::testing::IsNull;
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using ::testing::Pointee;
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using ::testing::StrEq;
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TEST(LruCache, Basic) {
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LruCache<int, std::string> lru(3);
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ASSERT_THAT(lru.get(0), IsNull());
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ASSERT_THAT(lru.get(1), IsNull());
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ASSERT_THAT(lru.get(2), IsNull());
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ASSERT_THAT(lru.get(3), IsNull());
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lru.set(1, "hello");
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lru.set(2, "world");
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ASSERT_THAT(lru.get(0), IsNull());
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ASSERT_THAT(lru.get(1), Pointee(StrEq("hello")));
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ASSERT_THAT(lru.get(2), Pointee(StrEq("world")));
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ASSERT_THAT(lru.get(3), IsNull());
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lru.set(2, "world");
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lru.set(2, "world");
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lru.set(2, "world");
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lru.set(2, "world");
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ASSERT_THAT(lru.get(0), IsNull());
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ASSERT_THAT(lru.get(1), Pointee(StrEq("hello")));
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ASSERT_THAT(lru.get(2), Pointee(StrEq("world")));
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ASSERT_THAT(lru.get(3), IsNull());
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lru.set(2, "helloworld");
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ASSERT_THAT(lru.get(0), IsNull());
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ASSERT_THAT(lru.get(1), Pointee(StrEq("hello")));
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ASSERT_THAT(lru.get(2), Pointee(StrEq("helloworld")));
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ASSERT_THAT(lru.get(3), IsNull());
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lru.set(3, "foo");
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ASSERT_THAT(lru.get(0), IsNull());
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ASSERT_THAT(lru.get(1), Pointee(StrEq("hello")));
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ASSERT_THAT(lru.get(2), Pointee(StrEq("helloworld")));
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ASSERT_THAT(lru.get(3), Pointee(StrEq("foo")));
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lru.set(0, "bar");
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ASSERT_THAT(lru.get(0), Pointee(StrEq("bar")));
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ASSERT_THAT(lru.get(1), IsNull());
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ASSERT_THAT(lru.get(2), Pointee(StrEq("helloworld")));
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ASSERT_THAT(lru.get(3), Pointee(StrEq("foo")));
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lru.remove(2);
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ASSERT_THAT(lru.get(0), Pointee(StrEq("bar")));
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ASSERT_THAT(lru.get(1), IsNull());
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ASSERT_THAT(lru.get(2), IsNull());
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ASSERT_THAT(lru.get(3), Pointee(StrEq("foo")));
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lru.remove(1);
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lru.remove(5);
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ASSERT_THAT(lru.get(0), Pointee(StrEq("bar")));
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ASSERT_THAT(lru.get(1), IsNull());
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ASSERT_THAT(lru.get(2), IsNull());
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ASSERT_THAT(lru.get(3), Pointee(StrEq("foo")));
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}
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} // namespace
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} // namespace base
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} // namespace android
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