Finds and returns all cache entry identifiers which are tagged by the
specified tag.
| public findIdentifiersByTag ( string $tag ) : array | ||
| $tag | string | The tag to search for |
| return | array | An array with identifiers of all matching entries. An empty array if no entries matched |
/**
* @test
*/
public function removeRemovesEntryFromCache()
{
for ($i = 0; $i < 10; $i++) {
$this->backend->set('entry_' . $i, 'foo', ['tag1']);
}
$this->assertCount(10, $this->backend->findIdentifiersByTag('tag1'));
$this->assertEquals('foo', $this->backend->get('entry_1'));
$actualEntries = [];
foreach ($this->backend as $key => $value) {
$actualEntries[] = $key;
}
$this->assertCount(10, $actualEntries);
$this->backend->remove('entry_3');
$this->assertCount(9, $this->backend->findIdentifiersByTag('tag1'));
$this->assertFalse($this->backend->get('entry_3'));
$actualEntries = [];
foreach ($this->backend as $key => $value) {
$actualEntries[] = $key;
}
$this->assertCount(9, $actualEntries);
}
/**
* @test
*/
public function findIdentifiersByTagInvokesRedis()
{
$this->redis->expects($this->once())->method('sMembers')->with('Foo_Cache:tag:some_tag')->will($this->returnValue(['entry_1', 'entry_2']));
$this->assertEquals(['entry_1', 'entry_2'], $this->backend->findIdentifiersByTag('some_tag'));
}