test/tools/javac/TestPkgInfo.java

changeset 0
959103a6100f
child 2525
2eb010b6cb22
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/test/tools/javac/TestPkgInfo.java	Wed Apr 27 01:34:52 2016 +0800
     1.3 @@ -0,0 +1,205 @@
     1.4 +/*
     1.5 + * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
     1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     1.7 + *
     1.8 + * This code is free software; you can redistribute it and/or modify it
     1.9 + * under the terms of the GNU General Public License version 2 only, as
    1.10 + * published by the Free Software Foundation.
    1.11 + *
    1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
    1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    1.14 + * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    1.15 + * version 2 for more details (a copy is included in the LICENSE file that
    1.16 + * accompanied this code).
    1.17 + *
    1.18 + * You should have received a copy of the GNU General Public License version
    1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
    1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    1.21 + *
    1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
    1.23 + * or visit www.oracle.com if you need additional information or have any
    1.24 + * questions.
    1.25 + */
    1.26 +
    1.27 +/*
    1.28 + * @test
    1.29 + * @bug 6960424 8022161
    1.30 + * @summary new option -Xpkginfo for better control of when package-info.class
    1.31 + *          is generated, also ensures no failures if package-info.java is
    1.32 + *          not available.
    1.33 + */
    1.34 +
    1.35 +import java.io.*;
    1.36 +import java.util.*;
    1.37 +
    1.38 +public class TestPkgInfo {
    1.39 +    enum OptKind {
    1.40 +        NONE(null),
    1.41 +        ALWAYS("-Xpkginfo:always"),
    1.42 +        NONEMPTY("-Xpkginfo:nonempty"),
    1.43 +        LEGACY("-Xpkginfo:legacy");
    1.44 +        OptKind(String opt) { this.opt = opt; }
    1.45 +        final String opt;
    1.46 +    };
    1.47 +
    1.48 +    public static void main(String... args) throws Exception {
    1.49 +        new TestPkgInfo().run(args);
    1.50 +    }
    1.51 +    public void run(String... args) throws Exception {
    1.52 +        testPositive();
    1.53 +        testNoExceptions();
    1.54 +    }
    1.55 +    public void testPositive(String... args) throws Exception {
    1.56 +        boolean[] booleanValues = { false, true };
    1.57 +        for (OptKind ok: OptKind.values()) {
    1.58 +            for (boolean sr: booleanValues) {
    1.59 +                for (boolean cr: booleanValues) {
    1.60 +                    for (boolean rr: booleanValues) {
    1.61 +                        try {
    1.62 +                            test(ok, sr, cr, rr);
    1.63 +                        } catch (Exception e) {
    1.64 +                            error("Exception: " + e);
    1.65 +                        }
    1.66 +                        if (errors > 0) throw new AssertionError();
    1.67 +                    }
    1.68 +                }
    1.69 +            }
    1.70 +        }
    1.71 +
    1.72 +        if (errors > 0)
    1.73 +            throw new Exception(errors + " errors occurred");
    1.74 +    }
    1.75 +
    1.76 +    /** this should throw no exceptions **/
    1.77 +    void testNoExceptions() throws Exception {
    1.78 +        count++;
    1.79 +        System.err.println("Test " + count + ": ALWAYS nofile");
    1.80 +
    1.81 +        StringBuilder sb = new StringBuilder();
    1.82 +        sb.append("package test; class Hello{}");
    1.83 +
    1.84 +        // test specific tmp directory
    1.85 +        File tmpDir = new File("tmp.test" + count);
    1.86 +        File classesDir = new File(tmpDir, "classes");
    1.87 +        classesDir.mkdirs();
    1.88 +        File javafile = new File(new File(tmpDir, "src"), "Hello.java");
    1.89 +        writeFile(javafile, sb.toString());
    1.90 +        // build up list of options and files to be compiled
    1.91 +        List<String> opts = new ArrayList<>();
    1.92 +        List<File> files = new ArrayList<>();
    1.93 +
    1.94 +        opts.add("-d");
    1.95 +        opts.add(classesDir.getPath());
    1.96 +        opts.add("-Xpkginfo:always");
    1.97 +        files.add(javafile);
    1.98 +
    1.99 +        compile(opts, files);
   1.100 +    }
   1.101 +
   1.102 +    void test(OptKind ok, boolean sr, boolean cr, boolean rr) throws Exception {
   1.103 +        count++;
   1.104 +        System.err.println("Test " + count + ": ok:" + ok + " sr:" + sr + " cr:" + cr + " rr:" + rr);
   1.105 +
   1.106 +        StringBuilder sb = new StringBuilder();
   1.107 +
   1.108 +        // create annotated package statement with all combinations of retention policy
   1.109 +        if (sr) sb.append("@SR\n");
   1.110 +        if (cr) sb.append("@CR\n");
   1.111 +        if (rr) sb.append("@RR\n");
   1.112 +        sb.append("package p;\n");
   1.113 +        sb.append("\n");
   1.114 +
   1.115 +        sb.append("import java.lang.annotation.*;\n");
   1.116 +        sb.append("@Retention(RetentionPolicy.SOURCE)  @interface SR { }\n");
   1.117 +        sb.append("@Retention(RetentionPolicy.CLASS)   @interface CR { }\n");
   1.118 +        sb.append("@Retention(RetentionPolicy.RUNTIME) @interface RR { }\n");
   1.119 +
   1.120 +        // test specific tmp directory
   1.121 +        File tmpDir = new File("tmp.test" + count);
   1.122 +        File classesDir = new File(tmpDir, "classes");
   1.123 +        classesDir.mkdirs();
   1.124 +        File pkginfo_java = new File(new File(tmpDir, "src"), "package-info.java");
   1.125 +        writeFile(pkginfo_java, sb.toString());
   1.126 +
   1.127 +        // build up list of options and files to be compiled
   1.128 +        List<String> opts = new ArrayList<>();
   1.129 +        List<File> files = new ArrayList<>();
   1.130 +
   1.131 +        opts.add("-d");
   1.132 +        opts.add(classesDir.getPath());
   1.133 +        if (ok.opt != null)
   1.134 +            opts.add(ok.opt);
   1.135 +        //opts.add("-verbose");
   1.136 +            files.add(pkginfo_java);
   1.137 +
   1.138 +        compile(opts, files);
   1.139 +
   1.140 +        File pkginfo_class = new File(new File(classesDir, "p"), "package-info.class");
   1.141 +        boolean exists = pkginfo_class.exists();
   1.142 +
   1.143 +        boolean expected;
   1.144 +        switch (ok) {
   1.145 +            case ALWAYS:
   1.146 +                expected = true;
   1.147 +                break;
   1.148 +
   1.149 +            case LEGACY:
   1.150 +            case NONE:
   1.151 +                expected = (sr || cr || rr ); // any annotation
   1.152 +                break;
   1.153 +
   1.154 +            case NONEMPTY:
   1.155 +                expected = (cr || rr ); // any annotation in class file
   1.156 +                break;
   1.157 +
   1.158 +            default:
   1.159 +                throw new IllegalStateException();
   1.160 +        }
   1.161 +
   1.162 +        if (exists && !expected)
   1.163 +            error("package-info.class found but not expected");
   1.164 +        if (!exists && expected)
   1.165 +            error("package-info.class expected but not found");
   1.166 +    }
   1.167 +
   1.168 +    /** Compile files with options provided. */
   1.169 +    void compile(List<String> opts, List<File> files) throws Exception {
   1.170 +        System.err.println("javac: " + opts + " " + files);
   1.171 +        List<String> args = new ArrayList<>();
   1.172 +        args.addAll(opts);
   1.173 +        for (File f: files)
   1.174 +            args.add(f.getPath());
   1.175 +        StringWriter sw = new StringWriter();
   1.176 +        PrintWriter pw = new PrintWriter(sw);
   1.177 +        int rc = com.sun.tools.javac.Main.compile(args.toArray(new String[args.size()]), pw);
   1.178 +        pw.flush();
   1.179 +        if (sw.getBuffer().length() > 0)
   1.180 +            System.err.println(sw.toString());
   1.181 +        if (rc != 0)
   1.182 +            throw new Exception("compilation failed: rc=" + rc);
   1.183 +    }
   1.184 +
   1.185 +    /** Write a file with a given body. */
   1.186 +    void writeFile(File f, String body) throws Exception {
   1.187 +        if (f.getParentFile() != null)
   1.188 +            f.getParentFile().mkdirs();
   1.189 +        Writer out = new FileWriter(f);
   1.190 +        try {
   1.191 +            out.write(body);
   1.192 +        } finally {
   1.193 +            out.close();
   1.194 +        }
   1.195 +    }
   1.196 +
   1.197 +    /** Report an error. */
   1.198 +    void error(String msg) {
   1.199 +        System.err.println("Error: " + msg);
   1.200 +        errors++;
   1.201 +    }
   1.202 +
   1.203 +    /** Test case counter. */
   1.204 +    int count;
   1.205 +
   1.206 +    /** Number of errors found. */
   1.207 +    int errors;
   1.208 +}

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