1/*
2 * Copyright (c) 2015, 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 MethodMatcherTest
26 * @summary Testing of compiler/MethodMatcher
27 * @bug 8135068
28 * @library /test/lib
29 * @modules java.base/jdk.internal.misc
30 * @build sun.hotspot.WhiteBox
31 * @run driver ClassFileInstaller sun.hotspot.WhiteBox
32 *                                sun.hotspot.WhiteBox$WhiteBoxPermission
33 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
34 *                   compiler.oracle.MethodMatcherTest
35 */
36
37package compiler.oracle;
38
39import sun.hotspot.WhiteBox;
40
41import java.lang.reflect.Method;
42import java.util.ArrayList;
43
44public class MethodMatcherTest {
45
46    /** Instance of WhiteBox */
47    protected static final WhiteBox WHITE_BOX = WhiteBox.getWhiteBox();
48
49    Method helper;
50    Method getDate;
51    Method inner;
52    Method toString;
53
54    static final int MATCH = 1;
55    static final int NO_MATCH = 0;
56    static final int PARSING_FAILURE = -1;
57
58    public MethodMatcherTest() {
59    }
60
61    public void test() throws Exception {
62        // instantiate before calling getMethod on innerHelper
63        TestCases testCases = new TestCases();
64
65        helper = getMethod(MethodMatcherTest.class, "helper");
66        getDate = getMethod(java.util.Date.class, "getDate");
67        inner = getMethod(TestCases.class, "innerHelper");
68        toString = getMethod(String.class, "toString");
69
70        testCases.add(helper, "pool/sub/Klass.method(I[Ljava/lang/String;Ljava/lang/Integer;[B[[D)V", NO_MATCH);
71
72        // These should be improved to parsing failed in the future
73        testCases.add(helper, "*Klass*,*$method*::", NO_MATCH);
74        testCases.add(helper, "*Klass *+*", NO_MATCH);
75        testCases.add(helper, "*Klass*::*method*", NO_MATCH);
76
77        testCases.add(helper, "*,**", PARSING_FAILURE);
78        testCases.add(helper, "*,*(I[Ljava/lang/String;Lj]ava/lang/Integer;[B[[D)V", PARSING_FAILURE);
79        testCases.add(helper, "*,*)method*.", PARSING_FAILURE);
80        testCases.add(helper, "{pool.subpack.Klass}* *", PARSING_FAILURE);
81        testCases.add(helper, "*Klass met]hod/", PARSING_FAILURE);
82        testCases.add(helper, "pool::su@%b::Klass* *)method.", PARSING_FAILURE);
83        testCases.add(helper, "0pool/sub/Klass,*{method}*.(I[Ljava/lang/String;Lj]ava/lang/Integer;[B[[D)V", PARSING_FAILURE);
84        testCases.add(helper, "*Klass nonexistent::)(I[Ljava/lang/String;Ljava/lang/Integer;[B[[D)V", PARSING_FAILURE);
85        testCases.add(helper, "pool,su]b,Klass*,*)method*/", PARSING_FAILURE);
86        testCases.add(helper, "_pool,sub,Klass*,met@%hod,(0)V", PARSING_FAILURE);
87
88        testCases.add(helper, "*.*", MATCH);
89        testCases.add(helper, "compiler/oracle/MethodMatcherTest.*", MATCH);
90        testCases.add(helper, "compiler/oracle/MethodMatcherTest.helper", MATCH);
91        testCases.add(helper, "compiler/oracle/MethodMatcherTest.helper()", MATCH);
92        testCases.add(helper, "compiler/oracle/MethodMatcherTest.helper()V", MATCH);
93        testCases.add(helper, "compiler/oracle/MethodMatcherTest.helper()V;", NO_MATCH);
94        testCases.add(helper, "compiler/oracle/MethodMatcherTest.helper()I", NO_MATCH);
95        testCases.add(helper, "compiler/oracle/MethodMatcherTest.helperX", NO_MATCH);
96        testCases.add(helper, "compiler/oracle/MethodMatcherTest.helper;", NO_MATCH);
97        testCases.add(helper, "abc.*", NO_MATCH);
98        testCases.add(helper, "*.abc", NO_MATCH);
99
100        testCases.add(getDate, "*.*", MATCH);
101        testCases.add(getDate, "*.getDate", MATCH);
102        testCases.add(getDate, "java/util/Date.getDate", MATCH);
103        testCases.add(getDate, "java/util/Date.*", MATCH);
104
105        testCases.add(inner, "*.*", MATCH);
106        testCases.add(inner, "compiler/oracle/MethodMatcherTest$TestCases.innerHelper", MATCH);
107        testCases.add(inner, "compiler/oracle/MethodMatcherTest*.innerHelper", MATCH);
108        testCases.add(inner, "compiler/oracle/MethodMatcherTest$*.innerHelper", MATCH);
109        testCases.add(inner, "*$TestCases.innerHelper", MATCH);
110        testCases.add(inner, "*TestCases.innerHelper", MATCH);
111        testCases.add(inner, "TestCases.innerHelper", NO_MATCH);
112        testCases.add(inner, "compiler/oracle/MethodMatcherTest.innerHelper", NO_MATCH);
113
114        testCases.add(toString, "*.*", MATCH);
115        testCases.add(toString, "java/lang/String.toString", MATCH);
116        testCases.add(toString, "java.lang.String::toString", MATCH);
117
118        testCases.add(toString, "java/lang/String::toString", PARSING_FAILURE);
119        testCases.add(toString, "java.lang/String::toString", PARSING_FAILURE);
120        testCases.add(toString, "java.lang/String.toString", PARSING_FAILURE);
121        testCases.add(toString, "java::lang::String::toString", PARSING_FAILURE);
122
123        testCases.add(toString, "java/lang/String.toString(*)", PARSING_FAILURE);
124        testCases.add(toString, "java/lang/String.toString(L*", PARSING_FAILURE);
125        testCases.add(toString, "java/lang/String.toString*(lsd)l", NO_MATCH);
126        testCases.add(toString, "java/lang/String.toString(lsd)l", NO_MATCH);
127        testCases.add(toString, "java/lang/String.toString (", MATCH);
128        testCases.add(toString, "java/lang/String.toString ()", MATCH);
129        testCases.add(toString, "java/lang/String.toString ()L", MATCH);
130        testCases.add(toString, "java/lang/String.toString ()Lj", MATCH);
131        testCases.add(toString, "java/lang/String.toString ()Ls", NO_MATCH);
132        testCases.add(toString, "java/lang/String.toString*(", MATCH);
133        testCases.add(toString, "java/lang/String.toString* (", MATCH);
134        testCases.add(toString, "java/lang/String.toString*(;", NO_MATCH);
135        testCases.add(toString, "java/lang/String.toString*();sf", NO_MATCH);
136        testCases.add(toString, "java/lang/String.toString*()Ljava/lang/String;", MATCH);
137        testCases.add(toString, "java/lang/String.toString()Ljava/lang/String;", MATCH);
138        testCases.add(toString, "java/lang/String.toString ()Ljava/lang/String;", MATCH);
139        testCases.add(toString, "java/lang/String.toString ()Ljava/lang/String", MATCH);
140        testCases.add(toString, "java/lang/String.toString ()L", MATCH);
141        testCases.add(toString, "java/lang/String.toString ()I;", NO_MATCH);
142
143        testCases.add(toString, "*Internal.*", NO_MATCH);
144        testCases.add(toString, "*Internal.**", PARSING_FAILURE);
145        testCases.add(toString, "*Internal.***", PARSING_FAILURE);
146        testCases.add(toString, "*Internal.*a**", PARSING_FAILURE);
147        testCases.add(toString, "*Internal.**a*", PARSING_FAILURE);
148
149        testCases.add(toString, "java.lang.String::<init>(Ljava/lang/String;)V", NO_MATCH);
150        testCases.add(toString, "java.lang.String::<clinit>(Ljava/lang/String;)V", NO_MATCH);
151        testCases.add(toString, "java.lang.String::<init(Ljava/lang/String;)V", PARSING_FAILURE);
152        testCases.add(toString, "java.lang.String::init>(Ljava/lang/String;)V", PARSING_FAILURE);
153
154        testCases.add(toString, "java/lang/String.toString()Ljava/lang/String;", MATCH);
155        testCases.add(toString, "java/lang/Str<ing.toString()Ljava/lang/String;", PARSING_FAILURE);
156        testCases.add(toString, "java/lang/Str>ing.toString()Ljava/lang/String;", PARSING_FAILURE);
157        testCases.add(toString, "java/lang/<init>.toString()Ljava/lang/String;", PARSING_FAILURE);
158        testCases.add(toString, "java/lang/<clinit>.toString()Ljava/lang/String;", PARSING_FAILURE);
159
160        int failures = 0;
161        for (TestCase t : testCases) {
162            System.out.println("Test case: " + t.pattern);
163            if (!t.test()) {
164                failures++;
165                System.out.println(" * FAILED");
166            }
167        }
168        if (failures != 0) {
169            throw new Exception("There where " + failures + " failures in this test");
170        }
171    }
172
173    public static void main(String... args) throws Exception {
174        MethodMatcherTest test = new MethodMatcherTest();
175        test.test();
176    }
177
178    public void helper() {
179
180    }
181
182    private static Method getMethod(Class klass, String name, Class<?>... parameterTypes) {
183        try {
184            return klass.getDeclaredMethod(name, parameterTypes);
185        } catch (NoSuchMethodException | SecurityException e) {
186            throw new RuntimeException("exception on getting method Helper." + name, e);
187        }
188    }
189
190    class TestCase {
191        String pattern;
192        Method testTarget;
193        int expectedResult;
194
195        public TestCase(Method testTarget, String pattern, int expectedResult) {
196            this.testTarget = testTarget;
197            this.pattern = pattern;
198            this.expectedResult = expectedResult;
199        }
200
201        public String resultAsStr(int errorCode) {
202            switch (errorCode) {
203            case PARSING_FAILURE:
204                return "Parsing failed";
205            case NO_MATCH:
206                return "No match";
207            case MATCH:
208                return "Match";
209            default:
210                return "Unknown error";
211            }
212        }
213
214        boolean test() {
215            int result = WHITE_BOX.matchesMethod(testTarget, pattern);
216            if (result != expectedResult) {
217                System.out
218                        .println("FAIL Wrong result, Got: " + resultAsStr(result) + "\n TestCase: " + this.toString());
219                return false;
220            }
221            return true;
222        }
223
224        @Override
225        public String toString() {
226            return "Method: '" + testTarget.toString() + "' Pattern: '" + pattern + "' Expected: "
227                    + resultAsStr(expectedResult);
228        }
229
230        public void innerHelper() {
231        }
232    }
233
234    class TestCases extends ArrayList<TestCase> {
235        private static final long serialVersionUID = 1L;
236
237        public boolean add(Method testTarget, String pattern, int expectedResult) {
238            return super.add(new TestCase(testTarget, pattern, expectedResult));
239        }
240
241        public void innerHelper() {
242        }
243    }
244}
245