IncCompileNoChanges.java revision 3573:c4a18ee691c4 
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.main
33 *          jdk.compiler/com.sun.tools.sjavac
34 * @build Wrapper toolbox.ToolBox
35 * @run main Wrapper IncCompileNoChanges
36 */
37
38import java.util.*;
39import java.nio.file.*;
40
41public class IncCompileNoChanges  extends SJavacTester {
42    public static void main(String... args) throws Exception {
43        IncCompileNoChanges nc = new IncCompileNoChanges();
44        nc.test();
45    }
46
47    // Remember the previous bin and headers state here.
48    Map<String,Long> previous_bin_state;
49    Map<String,Long> previous_headers_state;
50
51    void test() throws Exception {
52        Files.createDirectories(GENSRC);
53        Files.createDirectories(BIN);
54        Files.createDirectories(HEADERS);
55
56        initialCompile();
57        incrementalCompileNoChanges();
58    }
59
60    // Testing that no change in sources implies no change in binaries
61    void incrementalCompileNoChanges() throws Exception {
62        previous_bin_state = collectState(BIN);
63        previous_headers_state = collectState(HEADERS);
64        System.out.println("\nIn incrementalCompileNoChanges() ");
65        System.out.println("Testing that no change in sources implies no change in binaries");
66        compile(GENSRC.toString(),
67                "-d", BIN.toString(),
68                "--state-dir=" + BIN,
69                "-h", HEADERS.toString(),
70                "-j", "1",
71                "--log=debug");
72        Map<String,Long> new_bin_state = collectState(BIN);
73        verifyEqual(new_bin_state, previous_bin_state);
74        Map<String,Long> new_headers_state = collectState(HEADERS);
75        verifyEqual(previous_headers_state, new_headers_state);
76    }
77}
78