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libphutil/src/cache/__tests__/PhutilKeyValueCacheTestCase.php
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PhutilKeyValueCacheTestCase.php
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<?php
final class PhutilKeyValueCacheTestCase extends ArcanistPhutilTestCase {
public function testInRequestCache() {
$cache = new PhutilKeyValueCacheInRequest();
$this->doCacheTest($cache);
$cache->destroyCache();
}
public function testOnDiskCache() {
$cache = new PhutilKeyValueCacheOnDisk();
$cache->setCacheFile(new TempFile());
$this->doCacheTest($cache);
$cache->destroyCache();
}
public function testAPCCache() {
$cache = new PhutilKeyValueCacheAPC();
if (!$cache->isAvailable()) {
$this->assertSkipped("Cache not available.");
}
$this->doCacheTest($cache);
}
public function testDirectoryCache() {
$cache = new PhutilKeyValueCacheDirectory();
$dir = Filesystem::createTemporaryDirectory();
$cache->setCacheDirectory($dir);
$this->doCacheTest($cache);
$cache->destroyCache();
}
public function testDirectoryCacheSpecialDirectoryRules() {
$cache = new PhutilKeyValueCacheDirectory();
$dir = Filesystem::createTemporaryDirectory();
$dir = $dir.'/dircache/';
$cache->setCacheDirectory($dir);
$cache->setKey('a', 1);
$this->assertEqual(true, Filesystem::pathExists($dir.'/a.cache'));
$cache->setKey('a/b', 1);
$this->assertEqual(true, Filesystem::pathExists($dir.'/a/'));
$this->assertEqual(true, Filesystem::pathExists($dir.'/a/b.cache'));
$cache->deleteKey('a/b');
$this->assertEqual(false, Filesystem::pathExists($dir.'/a/'));
$this->assertEqual(false, Filesystem::pathExists($dir.'/a/b.cache'));
$cache->destroyCache();
$this->assertEqual(false, Filesystem::pathExists($dir));
}
public function testCacheStack() {
$req_cache = new PhutilKeyValueCacheInRequest();
$disk_cache = new PhutilKeyValueCacheOnDisk();
$disk_cache->setCacheFile(new TempFile());
$apc_cache = new PhutilKeyValueCacheAPC();
$stack = array(
$req_cache,
$disk_cache,
);
if ($apc_cache->isAvailable()) {
$stack[] = $apc_cache;
}
$cache = new PhutilKeyValueCacheStack();
$cache->setCaches($stack);
$this->doCacheTest($cache);
$disk_cache->destroyCache();
$req_cache->destroyCache();
}
private function doCacheTest(PhutilKeyValueCache $cache) {
$key1 = 'test:'.mt_rand();
$key2 = 'test:'.mt_rand();
$default = 'cache-miss';
$value1 = 'cache-hit1';
$value2 = 'cache-hit2';
$test_info = get_class($cache);
// Test that we miss correctly on missing values.
$this->assertEqual(
$default,
$cache->getKey($key1, $default),
$test_info);
$this->assertEqual(
array(
),
$cache->getKeys(array($key1, $key2)),
$test_info);
// Test that we can set individual keys.
$cache->setKey($key1, $value1);
$this->assertEqual(
$value1,
$cache->getKey($key1, $default),
$test_info);
$this->assertEqual(
array(
$key1 => $value1,
),
$cache->getKeys(array($key1, $key2)),
$test_info);
// Test that we can delete individual keys.
$cache->deleteKey($key1);
$this->assertEqual(
$default,
$cache->getKey($key1, $default),
$test_info);
$this->assertEqual(
array(
),
$cache->getKeys(array($key1, $key2)),
$test_info);
// Test that we can set multiple keys.
$cache->setKeys(
array(
$key1 => $value1,
$key2 => $value2,
));
$this->assertEqual(
$value1,
$cache->getKey($key1, $default),
$test_info);
$this->assertEqual(
array(
$key1 => $value1,
$key2 => $value2,
),
$cache->getKeys(array($key1, $key2)),
$test_info);
// Test that we can delete multiple keys.
$cache->deleteKeys(array($key1, $key2));
$this->assertEqual(
$default,
$cache->getKey($key1, $default),
$test_info);
$this->assertEqual(
array(
),
$cache->getKeys(array($key1, $key2)),
$test_info);
// NOTE: The TTL tests are necessarily slow (we must sleep() through the
// TTLs) and do not work with APC (it does not TTL until the next request)
// so they're disabled by default. If you're developing the cache stack,
// it may be useful to run them.
return;
// Test that keys expire when they TTL.
$cache->setKey($key1, $value1, 1);
$cache->setKey($key2, $value2, 5);
$this->assertEqual($value1, $cache->getKey($key1, $default));
$this->assertEqual($value2, $cache->getKey($key2, $default));
sleep(2);
$this->assertEqual($default, $cache->getKey($key1, $default));
$this->assertEqual($value2, $cache->getKey($key2, $default));
// Test that setting a 0 TTL overwrites a nonzero TTL.
$cache->setKey($key1, $value1, 1);
$this->assertEqual($value1, $cache->getKey($key1, $default));
$cache->setKey($key1, $value1, 0);
$this->assertEqual($value1, $cache->getKey($key1, $default));
sleep(2);
$this->assertEqual($value1, $cache->getKey($key1, $default));
}
}
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