1 /*
2 * Copyright (c) 2024, 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 8335770
26 * @summary improve javap code coverage for value classes
27 * @enablePreview
28 * @library /tools/lib
29 * @modules jdk.jdeps/com.sun.tools.javap
30 * @build toolbox.ToolBox toolbox.JavapTask
31 * @run main ValueClassesJavapTest
32 */
33
34 import java.nio.file.*;
35 import java.util.*;
36
37 import toolbox.JavapTask;
38 import toolbox.TestRunner;
39 import toolbox.ToolBox;
40 import toolbox.Task;
41
42 public class ValueClassesJavapTest extends TestRunner {
43 ToolBox tb = new ToolBox();
44
45 abstract value class AbstractValueClass {}
46 value class ValueClass {}
47 class IdentityClass {
48 ValueClass val;
49 }
50 class IdentityClass2 {
51 void m(ValueClass param) {}
52 }
53
54 private static final List<String> expectedOutput1 = List.of(
55 "Compiled from \"ValueClassesJavapTest.java\"",
56 "final value class ValueClassesJavapTest$ValueClass {",
57 " ValueClassesJavapTest$ValueClass(ValueClassesJavapTest);",
58 "}");
59 private static final List<String> expectedOutput2 = List.of(
60 "Compiled from \"ValueClassesJavapTest.java\"",
61 "abstract value class ValueClassesJavapTest$AbstractValueClass {",
62 " ValueClassesJavapTest$AbstractValueClass(ValueClassesJavapTest);",
63 "}");
64 private static final List<String> expectedOutput3 = List.of(
65 "LoadableDescriptors:",
66 " LValueClassesJavapTest$ValueClass;"
67 );
68
69 ValueClassesJavapTest() throws Exception {
70 super(System.err);
71 }
72
73 public static void main(String... args) throws Exception {
74 ValueClassesJavapTest tester = new ValueClassesJavapTest();
75 tester.runTests();
76 }
77
78 protected void runTests() throws Exception {
79 runTests(m -> new Object[] { Paths.get(m.getName()) });
80 }
81
82 @Test
83 public void testMain(Path base) throws Exception {
84 Path testClassesPath = Paths.get(System.getProperty("test.classes"));
85 List<String> output = new JavapTask(tb)
86 .options("-p", testClassesPath.resolve(this.getClass().getSimpleName() + "$ValueClass.class").toString())
87 .run()
88 .writeAll()
89 .getOutputLines(Task.OutputKind.DIRECT);
90 System.out.println(output);
91 if (!output.equals(expectedOutput1)) {
92 throw new AssertionError(String.format("unexpected output:\n %s", output));
93 }
94
95 output = new JavapTask(tb)
96 .options("-p", testClassesPath.resolve(this.getClass().getSimpleName() + "$AbstractValueClass.class").toString())
97 .run()
98 .writeAll()
99 .getOutputLines(Task.OutputKind.DIRECT);
100 System.out.println(output);
101 if (!output.equals(expectedOutput2)) {
102 throw new AssertionError(String.format("unexpected output:\n %s", output));
103 }
104
105 output = new JavapTask(tb)
106 .options("-p", "-v", testClassesPath.resolve(this.getClass().getSimpleName() + "$IdentityClass.class").toString())
107 .run()
108 .writeAll()
109 .getOutputLines(Task.OutputKind.DIRECT);
110 System.out.println(output);
111 if (!output.containsAll(expectedOutput3)) {
112 throw new AssertionError(String.format("unexpected output:\n %s", output));
113 }
114
115 output = new JavapTask(tb)
116 .options("-p", "-v", testClassesPath.resolve(this.getClass().getSimpleName() + "$IdentityClass2.class").toString())
117 .run()
118 .writeAll()
119 .getOutputLines(Task.OutputKind.DIRECT);
120 System.out.println(output);
121 if (!output.containsAll(expectedOutput3)) {
122 throw new AssertionError(String.format("unexpected output:\n %s", output));
123 }
124 }
125 }