public function testRandomAsciiReturnsAsciiCharacter() { $lowercaseLetters = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~'; $this->assertTrue(strpos($lowercaseLetters, BaseProvider::randomAscii()) !== false); }