*/
class HashBagOStuffTest extends PHPUnit_Framework_TestCase {
- public function testEvictionOrder() {
- $cache = new HashBagOStuff( array( 'maxKeys' => 10 ) );
+ public function testDelete() {
+ $cache = new HashBagOStuff();
+ for ( $i = 0; $i < 10; $i++ ) {
+ $cache->set( "key$i", 1 );
+ $this->assertEquals( 1, $cache->get( "key$i" ) );
+ $cache->delete( "key$i" );
+ $this->assertEquals( false, $cache->get( "key$i" ) );
+ }
+ }
+
+ public function testClear() {
+ $cache = new HashBagOStuff();
+ for ( $i = 0; $i < 10; $i++ ) {
+ $cache->set( "key$i", 1 );
+ $this->assertEquals( 1, $cache->get( "key$i" ) );
+ }
+ $cache->clear();
+ for ( $i = 0; $i < 10; $i++ ) {
+ $this->assertEquals( false, $cache->get( "key$i" ) );
+ }
+ }
+
+ public function testExpire() {
+ $cache = new HashBagOStuff();
+ $cacheInternal = TestingAccessWrapper::newFromObject( $cache );
+ $cache->set( 'foo', 1 );
+ $cache->set( 'bar', 1, 10 );
+ $cache->set( 'baz', 1, -10 );
+
+ $this->assertEquals( 0, $cacheInternal->bag['foo'][$cache::KEY_EXP], 'Indefinite' );
+ // 2 seconds tolerance
+ $this->assertEquals( time() + 10, $cacheInternal->bag['bar'][$cache::KEY_EXP], 'Future', 2 );
+ $this->assertEquals( time() - 10, $cacheInternal->bag['baz'][$cache::KEY_EXP], 'Past', 2 );
+
+ $this->assertEquals( 1, $cache->get( 'bar' ), 'Key not expired' );
+ $this->assertEquals( false, $cache->get( 'baz' ), 'Key expired' );
+ }
+
+ /**
+ * Ensure maxKeys eviction prefers keeping new keys.
+ */
+ public function testEvictionAdd() {
+ $cache = new HashBagOStuff( [ 'maxKeys' => 10 ] );
for ( $i = 0; $i < 10; $i++ ) {
$cache->set( "key$i", 1 );
$this->assertEquals( 1, $cache->get( "key$i" ) );
$this->assertEquals( false, $cache->get( "key" . $i - 10 ) );
}
}
+
+ /**
+ * Ensure maxKeys eviction prefers recently set keys
+ * even if the keys pre-exist.
+ */
+ public function testEvictionSet() {
+ $cache = new HashBagOStuff( [ 'maxKeys' => 3 ] );
+
+ foreach ( [ 'foo', 'bar', 'baz' ] as $key ) {
+ $cache->set( $key, 1 );
+ }
+
+ // Set existing key
+ $cache->set( 'foo', 1 );
+
+ // Add a 4th key (beyond the allowed maximum)
+ $cache->set( 'quux', 1 );
+
+ // Foo's life should have been extended over Bar
+ foreach ( [ 'foo', 'baz', 'quux' ] as $key ) {
+ $this->assertEquals( 1, $cache->get( $key ), "Kept $key" );
+ }
+ $this->assertEquals( false, $cache->get( 'bar' ), 'Evicted bar' );
+ }
+
+ /**
+ * Ensure maxKeys eviction prefers recently retrieved keys (LRU).
+ */
+ public function testEvictionGet() {
+ $cache = new HashBagOStuff( [ 'maxKeys' => 3 ] );
+
+ foreach ( [ 'foo', 'bar', 'baz' ] as $key ) {
+ $cache->set( $key, 1 );
+ }
+
+ // Get existing key
+ $cache->get( 'foo', 1 );
+
+ // Add a 4th key (beyond the allowed maximum)
+ $cache->set( 'quux', 1 );
+
+ // Foo's life should have been extended over Bar
+ foreach ( [ 'foo', 'baz', 'quux' ] as $key ) {
+ $this->assertEquals( 1, $cache->get( $key ), "Kept $key" );
+ }
+ $this->assertEquals( false, $cache->get( 'bar' ), 'Evicted bar' );
+ }
}