jdk8-mips64-public/langtools: test/tools/javap/InvalidOptions.java@153d0309e698

     1 /*

     2  * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  */

    24 /*

    25  * @test

    26  * @bug 8027411

    27  * @summary test an invalid option

    28  */

    30 import java.io.*;

    31 import java.util.zip.*;

    33 public class InvalidOptions {

    34     int errorCount;

    35     String log;

    37     public static void main(String[] args) throws Exception {

    38         new InvalidOptions().run();

    39     }

    41     void run() throws Exception {

    42         test(2, "-b", "Error: unknown option: -b",

    43                       "Usage: javap <options> <classes>",

    44                       "use -help for a list of possible options");

    45         if (errorCount > 0)

    46             throw new Exception(errorCount + " errors received");

    47     }

    49     void test(int expect, String option, String ... expectedOutput) {

    50         String output = runJavap(expect, option);

    51         verify(output, expectedOutput);

    52     }

    54     String runJavap(int expect, String... option) {

    55         StringWriter sw = new StringWriter();

    56         PrintWriter pw = new PrintWriter(sw);

    57         int rc = com.sun.tools.javap.Main.run(option, pw);

    58         pw.close();

    59         System.out.println("javap prints:");

    60         System.out.println(sw);

    61         if (rc != expect)

    62            throw new Error("Expect to return " + expect + ", but return " + rc);

    63         return sw.toString();

    64     }

    66     void verify(String output, String... expects) {

    67         for (String expect: expects) {

    68             if (!output.contains(expect))

    69                 error(expect + " not found");

    70         }

    71     }

    73     void error(String msg) {

    74         System.err.println(msg);

    75         errorCount++;

    76     }

    77 }

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