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-rw-r--r--libs/utils/tests/LruCache_test.cpp291
1 files changed, 0 insertions, 291 deletions
diff --git a/libs/utils/tests/LruCache_test.cpp b/libs/utils/tests/LruCache_test.cpp
deleted file mode 100644
index e573952..0000000
--- a/libs/utils/tests/LruCache_test.cpp
+++ /dev/null
@@ -1,291 +0,0 @@
-/*
- * Copyright (C) 2012 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 <stdlib.h>
-#include <utils/JenkinsHash.h>
-#include <utils/LruCache.h>
-#include <cutils/log.h>
-#include <gtest/gtest.h>
-
-namespace android {
-
-typedef int SimpleKey;
-typedef const char* StringValue;
-
-struct ComplexKey {
- int k;
-
- explicit ComplexKey(int k) : k(k) {
- instanceCount += 1;
- }
-
- ComplexKey(const ComplexKey& other) : k(other.k) {
- instanceCount += 1;
- }
-
- ~ComplexKey() {
- instanceCount -= 1;
- }
-
- bool operator ==(const ComplexKey& other) const {
- return k == other.k;
- }
-
- bool operator !=(const ComplexKey& other) const {
- return k != other.k;
- }
-
- static ssize_t instanceCount;
-};
-
-ssize_t ComplexKey::instanceCount = 0;
-
-template<> inline hash_t hash_type(const ComplexKey& value) {
- return hash_type(value.k);
-}
-
-struct ComplexValue {
- int v;
-
- explicit ComplexValue(int v) : v(v) {
- instanceCount += 1;
- }
-
- ComplexValue(const ComplexValue& other) : v(other.v) {
- instanceCount += 1;
- }
-
- ~ComplexValue() {
- instanceCount -= 1;
- }
-
- static ssize_t instanceCount;
-};
-
-ssize_t ComplexValue::instanceCount = 0;
-
-typedef LruCache<ComplexKey, ComplexValue> ComplexCache;
-
-class EntryRemovedCallback : public OnEntryRemoved<SimpleKey, StringValue> {
-public:
- EntryRemovedCallback() : callbackCount(0), lastKey(-1), lastValue(NULL) { }
- ~EntryRemovedCallback() {}
- void operator()(SimpleKey& k, StringValue& v) {
- callbackCount += 1;
- lastKey = k;
- lastValue = v;
- }
- ssize_t callbackCount;
- SimpleKey lastKey;
- StringValue lastValue;
-};
-
-class LruCacheTest : public testing::Test {
-protected:
- virtual void SetUp() {
- ComplexKey::instanceCount = 0;
- ComplexValue::instanceCount = 0;
- }
-
- virtual void TearDown() {
- ASSERT_NO_FATAL_FAILURE(assertInstanceCount(0, 0));
- }
-
- void assertInstanceCount(ssize_t keys, ssize_t values) {
- if (keys != ComplexKey::instanceCount || values != ComplexValue::instanceCount) {
- FAIL() << "Expected " << keys << " keys and " << values << " values "
- "but there were actually " << ComplexKey::instanceCount << " keys and "
- << ComplexValue::instanceCount << " values";
- }
- }
-};
-
-TEST_F(LruCacheTest, Empty) {
- LruCache<SimpleKey, StringValue> cache(100);
-
- EXPECT_EQ(NULL, cache.get(0));
- EXPECT_EQ(0u, cache.size());
-}
-
-TEST_F(LruCacheTest, Simple) {
- LruCache<SimpleKey, StringValue> cache(100);
-
- cache.put(1, "one");
- cache.put(2, "two");
- cache.put(3, "three");
- EXPECT_STREQ("one", cache.get(1));
- EXPECT_STREQ("two", cache.get(2));
- EXPECT_STREQ("three", cache.get(3));
- EXPECT_EQ(3u, cache.size());
-}
-
-TEST_F(LruCacheTest, MaxCapacity) {
- LruCache<SimpleKey, StringValue> cache(2);
-
- cache.put(1, "one");
- cache.put(2, "two");
- cache.put(3, "three");
- EXPECT_EQ(NULL, cache.get(1));
- EXPECT_STREQ("two", cache.get(2));
- EXPECT_STREQ("three", cache.get(3));
- EXPECT_EQ(2u, cache.size());
-}
-
-TEST_F(LruCacheTest, RemoveLru) {
- LruCache<SimpleKey, StringValue> cache(100);
-
- cache.put(1, "one");
- cache.put(2, "two");
- cache.put(3, "three");
- cache.removeOldest();
- EXPECT_EQ(NULL, cache.get(1));
- EXPECT_STREQ("two", cache.get(2));
- EXPECT_STREQ("three", cache.get(3));
- EXPECT_EQ(2u, cache.size());
-}
-
-TEST_F(LruCacheTest, GetUpdatesLru) {
- LruCache<SimpleKey, StringValue> cache(100);
-
- cache.put(1, "one");
- cache.put(2, "two");
- cache.put(3, "three");
- EXPECT_STREQ("one", cache.get(1));
- cache.removeOldest();
- EXPECT_STREQ("one", cache.get(1));
- EXPECT_EQ(NULL, cache.get(2));
- EXPECT_STREQ("three", cache.get(3));
- EXPECT_EQ(2u, cache.size());
-}
-
-uint32_t hash_int(int x) {
- return JenkinsHashWhiten(JenkinsHashMix(0, x));
-}
-
-TEST_F(LruCacheTest, StressTest) {
- const size_t kCacheSize = 512;
- LruCache<SimpleKey, StringValue> cache(512);
- const size_t kNumKeys = 16 * 1024;
- const size_t kNumIters = 100000;
- char* strings[kNumKeys];
-
- for (size_t i = 0; i < kNumKeys; i++) {
- strings[i] = (char *)malloc(16);
- sprintf(strings[i], "%d", i);
- }
-
- srandom(12345);
- int hitCount = 0;
- for (size_t i = 0; i < kNumIters; i++) {
- int index = random() % kNumKeys;
- uint32_t key = hash_int(index);
- const char *val = cache.get(key);
- if (val != NULL) {
- EXPECT_EQ(strings[index], val);
- hitCount++;
- } else {
- cache.put(key, strings[index]);
- }
- }
- size_t expectedHitCount = kNumIters * kCacheSize / kNumKeys;
- EXPECT_LT(int(expectedHitCount * 0.9), hitCount);
- EXPECT_GT(int(expectedHitCount * 1.1), hitCount);
- EXPECT_EQ(kCacheSize, cache.size());
-
- for (size_t i = 0; i < kNumKeys; i++) {
- free((void *)strings[i]);
- }
-}
-
-TEST_F(LruCacheTest, NoLeak) {
- ComplexCache cache(100);
-
- cache.put(ComplexKey(0), ComplexValue(0));
- cache.put(ComplexKey(1), ComplexValue(1));
- EXPECT_EQ(2, cache.size());
- assertInstanceCount(2, 3); // the null value counts as an instance
-}
-
-TEST_F(LruCacheTest, Clear) {
- ComplexCache cache(100);
-
- cache.put(ComplexKey(0), ComplexValue(0));
- cache.put(ComplexKey(1), ComplexValue(1));
- EXPECT_EQ(2, cache.size());
- assertInstanceCount(2, 3);
- cache.clear();
- assertInstanceCount(0, 1);
-}
-
-TEST_F(LruCacheTest, ClearNoDoubleFree) {
- {
- ComplexCache cache(100);
-
- cache.put(ComplexKey(0), ComplexValue(0));
- cache.put(ComplexKey(1), ComplexValue(1));
- EXPECT_EQ(2, cache.size());
- assertInstanceCount(2, 3);
- cache.removeOldest();
- cache.clear();
- assertInstanceCount(0, 1);
- }
- assertInstanceCount(0, 0);
-}
-
-TEST_F(LruCacheTest, ClearReuseOk) {
- ComplexCache cache(100);
-
- cache.put(ComplexKey(0), ComplexValue(0));
- cache.put(ComplexKey(1), ComplexValue(1));
- EXPECT_EQ(2, cache.size());
- assertInstanceCount(2, 3);
- cache.clear();
- assertInstanceCount(0, 1);
- cache.put(ComplexKey(0), ComplexValue(0));
- cache.put(ComplexKey(1), ComplexValue(1));
- EXPECT_EQ(2, cache.size());
- assertInstanceCount(2, 3);
-}
-
-TEST_F(LruCacheTest, Callback) {
- LruCache<SimpleKey, StringValue> cache(100);
- EntryRemovedCallback callback;
- cache.setOnEntryRemovedListener(&callback);
-
- cache.put(1, "one");
- cache.put(2, "two");
- cache.put(3, "three");
- EXPECT_EQ(3, cache.size());
- cache.removeOldest();
- EXPECT_EQ(1, callback.callbackCount);
- EXPECT_EQ(1, callback.lastKey);
- EXPECT_STREQ("one", callback.lastValue);
-}
-
-TEST_F(LruCacheTest, CallbackOnClear) {
- LruCache<SimpleKey, StringValue> cache(100);
- EntryRemovedCallback callback;
- cache.setOnEntryRemovedListener(&callback);
-
- cache.put(1, "one");
- cache.put(2, "two");
- cache.put(3, "three");
- EXPECT_EQ(3, cache.size());
- cache.clear();
- EXPECT_EQ(3, callback.callbackCount);
-}
-
-}