jdk8-mips64-public/langtools: test/tools/javac/T6970173/DebugPointerAtBadPositionTest.java@809a50f24d6f

7154966: CRs found to be in Fixed state with no test and no noreg- keyword.
Reviewed-by: ksrini

     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 6970173

    27  * @summary Debug pointer at bad position

    28  * @library /tools/javac/lib

    29  * @build ToolBox

    30  * @run main DebugPointerAtBadPositionTest

    31  */

    33 import java.io.File;

    34 import java.nio.file.Paths;

    36 import com.sun.tools.classfile.ClassFile;

    37 import com.sun.tools.classfile.Code_attribute;

    38 import com.sun.tools.classfile.LineNumberTable_attribute;

    39 import com.sun.tools.classfile.Method;

    40 import com.sun.tools.javac.util.Assert;

    42 public class DebugPointerAtBadPositionTest {

    44     static final String testSource =

    45             "public class AssertionTest {\n" +

    46             "    void lookForThisMethod() {\n" +

    47             "        int i;\n" +

    48             "        i = 33;\n" +

    49             "        assert // line 5\n" +

    50             "            i < 89:\n" +

    51             "        i < 100; // line 7\n" +

    52             "    }\n" +

    53             "}";

    55     static final int[][] expectedLNT = {

    56         {4, 0},

    57         {5, 3},

    58         {8, 34}

    59     };

    61     static final String methodToLookFor = "lookForThisMethod";

    62     static final String seekMethodNotFoundMsg =

    63         "The seek method was not found";

    64     static final String foundLNTLengthDifferentThanExpMsg =

    65         "The LineNumberTable found has a length different to the expected one";

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

    68         new DebugPointerAtBadPositionTest().run();

    69     }

    71     void run() throws Exception {

    72         compileTestClass();

    73         checkClassFile(new File(Paths.get(System.getProperty("user.dir"),

    74                 "AssertionTest.class").toUri()), methodToLookFor);

    75     }

    77     void compileTestClass() throws Exception {

    78         ToolBox.JavaToolArgs javacSuccessArgs =

    79                 new ToolBox.JavaToolArgs().setSources(testSource);

    80         ToolBox.javac(javacSuccessArgs);

    81     }

    83     void checkClassFile(final File cfile, String methodToFind) throws Exception {

    84         ClassFile classFile = ClassFile.read(cfile);

    85         boolean methodFound = false;

    86         for (Method method : classFile.methods) {

    87             if (method.getName(classFile.constant_pool).equals(methodToFind)) {

    88                 methodFound = true;

    89                 Code_attribute code = (Code_attribute) method.attributes.get("Code");

    90                 LineNumberTable_attribute lnt =

    91                         (LineNumberTable_attribute) code.attributes.get("LineNumberTable");

    92                 Assert.check(lnt.line_number_table_length == expectedLNT.length,

    93                         foundLNTLengthDifferentThanExpMsg);

    94                 int i = 0;

    95                 for (LineNumberTable_attribute.Entry entry: lnt.line_number_table) {

    96                     Assert.check(entry.line_number == expectedLNT[i][0] &&

    97                             entry.start_pc == expectedLNT[i][1],

    98                             "LNT entry at pos " + i + " differ from expected." +

    99                             "Found " + entry.line_number + ":" + entry.start_pc +

   100                             ". Expected " + expectedLNT[i][0] + ":" + expectedLNT[i][1]);

   101                     i++;

   102                 }

   103             }

   104         }

   105         Assert.check(methodFound, seekMethodNotFoundMsg);

   106     }

   108     void error(String msg) {

   109         throw new AssertionError(msg);

   110     }

   112 }

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