IncCompileNoChanges.java revision 3219:aacc4ceb35c9 
1/*
2 * Copyright (c) 2014, 2016, 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 */
23
24/*
25 * @test
26 * @summary Verify no change in sources implies no change in binaries
27 * @bug 8054689
28 * @author Fredrik O
29 * @author sogoel (rewrite)
30 * @library /tools/lib
31 * @modules jdk.compiler/com.sun.tools.javac.api
32 *          jdk.compiler/com.sun.tools.javac.file
33 *          jdk.compiler/com.sun.tools.javac.main
34 *          jdk.compiler/com.sun.tools.sjavac
35 * @build Wrapper ToolBox
36 * @run main Wrapper IncCompileNoChanges
37 */
38
39import java.util.*;
40import java.nio.file.*;
41
42public class IncCompileNoChanges  extends SJavacTester {
43    public static void main(String... args) throws Exception {
44        IncCompileNoChanges nc = new IncCompileNoChanges();
45        nc.test();
46    }
47
48    // Remember the previous bin and headers state here.
49    Map<String,Long> previous_bin_state;
50    Map<String,Long> previous_headers_state;
51
52    void test() throws Exception {
53        Files.createDirectories(GENSRC);
54        Files.createDirectories(BIN);
55        Files.createDirectories(HEADERS);
56
57        initialCompile();
58        incrementalCompileNoChanges();
59    }
60
61    // Testing that no change in sources implies no change in binaries
62    void incrementalCompileNoChanges() throws Exception {
63        previous_bin_state = collectState(BIN);
64        previous_headers_state = collectState(HEADERS);
65        System.out.println("\nIn incrementalCompileNoChanges() ");
66        System.out.println("Testing that no change in sources implies no change in binaries");
67        compile(GENSRC.toString(),
68                "-d", BIN.toString(),
69                "--state-dir=" + BIN,
70                "-h", HEADERS.toString(),
71                "-j", "1",
72                "--log=debug");
73        Map<String,Long> new_bin_state = collectState(BIN);
74        verifyEqual(new_bin_state, previous_bin_state);
75        Map<String,Long> new_headers_state = collectState(HEADERS);
76        verifyEqual(previous_headers_state, new_headers_state);
77    }
78}
79