question: public void testSignerString ( ) throws Exception { Signer s = new SignerStub ( "sss3" ) ; assertNotNull ( s ) ; assertEquals ( "sss3" , s . getName ( ) ) ; assertNull ( s . getPrivateKey ( ) ) ; Signer s2 = new SignerStub ( null ) ; assertNull ( s2 . getName ( ) ) ; }
target:  verify Signer(String) creates instance