public function testLength() { $validator = new StringValidator(); $validator->setLength(5); $this->assertFalse($validator->isValid('dasdas')); $this->assertFalse($validator->isValid('dasd')); $this->assertFalse($validator->isValid(null)); $this->assertFalse($validator->isValid(['dfsdf'])); $this->assertTrue($validator->isValid('')); $this->assertTrue($validator->isValid('asdfg')); }