71 lines
2.0 KiB
C++
71 lines
2.0 KiB
C++
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/*
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* Copyright 2016 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "SkLRUCache.h"
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#include "Test.h"
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struct Value {
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Value(int value, int* counter)
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: fValue(value)
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, fCounter(counter) {
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(*fCounter)++;
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}
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~Value() {
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(*fCounter)--;
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}
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int fValue;
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int* fCounter;
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};
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DEF_TEST(LRUCacheSequential, r) {
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int instances = 0;
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{
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static const int kSize = 100;
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SkLRUCache<int, std::unique_ptr<Value>> test(kSize);
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for (int i = 1; i < kSize * 2; i++) {
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REPORTER_ASSERT(r, !test.find(i));
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test.insert(i, std::unique_ptr<Value>(new Value(i * i, &instances)));
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REPORTER_ASSERT(r, test.find(i));
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REPORTER_ASSERT(r, i * i == (*test.find(i))->fValue);
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if (i > kSize) {
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REPORTER_ASSERT(r, kSize == instances);
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REPORTER_ASSERT(r, !test.find(i - kSize));
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} else {
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REPORTER_ASSERT(r, i == instances);
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}
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REPORTER_ASSERT(r, (int) test.count() == instances);
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}
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}
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REPORTER_ASSERT(r, 0 == instances);
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}
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DEF_TEST(LRUCacheRandom, r) {
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int instances = 0;
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{
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int seq[] = { 0, 1, 2, 3, 4, 1, 6, 2, 7, 5, 3, 2, 2, 3, 1, 7 };
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int expected[] = { 7, 1, 3, 2, 5 };
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static const int kSize = 5;
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SkLRUCache<int, std::unique_ptr<Value>> test(kSize);
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for (int i = 0; i < (int) (sizeof(seq) / sizeof(int)); i++) {
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int k = seq[i];
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if (!test.find(k)) {
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test.insert(k, std::unique_ptr<Value>(new Value(k, &instances)));
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}
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}
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REPORTER_ASSERT(r, kSize == instances);
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REPORTER_ASSERT(r, kSize == test.count());
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for (int i = 0; i < kSize; i++) {
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int k = expected[i];
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REPORTER_ASSERT(r, test.find(k));
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REPORTER_ASSERT(r, k == (*test.find(k))->fValue);
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}
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}
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REPORTER_ASSERT(r, 0 == instances);
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}
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