public function testPrepend()
{
$testKey = 'abc000';
$testValue = 'start';
$testAppendValue = '_end';
$mock = new MemcachedMock();
$this->assertFalse($mock->prepend($testKey, $testValue));
$mock->addServer('127.0.0.1', 11211);
$this->assertFalse($mock->prepend(null, $testValue));
$this->assertFalse($mock->prepend($testKey, '1'));
$mock->set($testKey, $testValue);
$this->assertTrue($mock->prepend($testKey, $testAppendValue));
$this->assertSame($testAppendValue . $testValue, $mock->get($testKey));
$this->assertFalse($mock->prepend($testKey, xml_parser_create('')));
$mock->set($testKey, [10]);
$this->assertFalse($mock->prepend($testKey, $testAppendValue));
}
