assertSame('9001****5555', SensitiveData::maskIc('900101105555')); $this->assertSame('123***7890', SensitiveData::maskAccount('1234567890')); $this->assertSame('012****789', SensitiveData::maskPhone('0123456789')); $this->assertSame('-', SensitiveData::maskAccount(null)); } }