Wed, 29 Sep 2010 23:27:57 -0700
6983738: Use a JavacTestingAbstractProcessor
Reviewed-by: jjg
1 /*
2 * Copyright (c) 2006, 2010, 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 */
24 /*
25 * @test
26 * @bug 6397298 6400986 6425592 6449798 6453386 6508401 6498938 6911854
27 * @summary Tests that getElementsAnnotatedWith works properly.
28 * @author Joseph D. Darcy
29 * @library ../../../lib
30 * @build JavacTestingAbstractProcessor
31 * @compile TestElementsAnnotatedWith.java
32 * @compile InheritedAnnotation.java
33 * @compile -processor TestElementsAnnotatedWith -proc:only SurfaceAnnotations.java
34 * @compile -processor TestElementsAnnotatedWith -proc:only BuriedAnnotations.java
35 * @compile -processor TestElementsAnnotatedWith -proc:only Part1.java Part2.java
36 * @compile -processor TestElementsAnnotatedWith -proc:only C2.java
37 * @compile -processor TestElementsAnnotatedWith -proc:only Foo.java
38 * @compile Foo.java
39 * @compile/process -processor TestElementsAnnotatedWith -proc:only Foo
40 */
42 import java.lang.annotation.Annotation;
43 import java.io.*;
44 import java.util.Collections;
45 import java.util.Set;
46 import java.util.HashSet;
47 import java.util.List;
48 import java.util.ArrayList;
49 import java.util.Arrays;
50 import javax.annotation.processing.*;
51 import javax.tools.*;
52 import javax.lang.model.SourceVersion;
53 import javax.lang.model.element.*;
54 import javax.lang.model.util.*;
55 import static javax.lang.model.util.ElementFilter.*;
57 /**
58 * This processor verifies that the information returned by
59 * getElementsAnnotatedWith is consistent with the expected results
60 * stored in an AnnotatedElementInfo annotation.
61 */
62 @AnnotatedElementInfo(annotationName="java.lang.SuppressWarnings", expectedSize=0, names={})
63 public class TestElementsAnnotatedWith extends JavacTestingAbstractProcessor {
65 public boolean process(Set<? extends TypeElement> annotations,
66 RoundEnvironment roundEnvironment) {
67 TypeElement annotatedElementInfoElement =
68 elements.getTypeElement("AnnotatedElementInfo");
69 Set<? extends Element> resultsMeta = Collections.emptySet();
70 Set<? extends Element> resultsBase = Collections.emptySet();
72 if (!roundEnvironment.processingOver()) {
73 testNonAnnotations(roundEnvironment);
75 // Verify AnnotatedElementInfo is present on the first
76 // specified type.
78 TypeElement firstType = typesIn(roundEnvironment.getRootElements()).iterator().next();
80 AnnotatedElementInfo annotatedElementInfo = firstType.getAnnotation(AnnotatedElementInfo.class);
82 boolean failed = false;
84 if (annotatedElementInfo == null)
85 throw new IllegalArgumentException("Missing AnnotatedElementInfo annotation on " +
86 firstType);
87 else {
88 // Verify that the annotation information is as
89 // expected.
91 Set<String> expectedNames = new HashSet<String>(Arrays.asList(annotatedElementInfo.names()));
93 resultsMeta =
94 roundEnvironment.
95 getElementsAnnotatedWith(elements.getTypeElement(annotatedElementInfo.annotationName()));
97 System.err.println("Results: " + resultsMeta);
99 if (resultsMeta.size() != annotatedElementInfo.expectedSize()) {
100 failed = true;
101 System.err.printf("Bad number of elements; expected %d, got %d%n",
102 annotatedElementInfo.expectedSize(), resultsMeta.size());
103 } else {
104 for(Element element : resultsMeta) {
105 String simpleName = element.getSimpleName().toString();
106 if (!expectedNames.contains(simpleName) ) {
107 failed = true;
108 System.err.println("Name ``" + simpleName + "'' not expected.");
109 }
110 }
111 }
112 }
114 resultsBase = computeResultsBase(roundEnvironment, annotatedElementInfo.annotationName());
116 if (!resultsMeta.equals(resultsBase)) {
117 failed = true;
118 System.err.println("Base and Meta sets unequal;\n meta: " + resultsMeta +
119 "\nbase: " + resultsBase);
120 }
122 if (failed) {
123 System.err.println("AnnotatedElementInfo: " + annotatedElementInfo);
124 throw new RuntimeException();
125 }
126 } else {
127 // If processing is over without an error, the specified
128 // elements should be empty so an empty set should be returned.
129 resultsMeta = roundEnvironment.getElementsAnnotatedWith(annotatedElementInfoElement);
130 resultsBase = roundEnvironment.getElementsAnnotatedWith(AnnotatedElementInfo.class);
131 if (!resultsMeta.isEmpty())
132 throw new RuntimeException("Nonempty resultsMeta: " + resultsMeta);
133 if (!resultsBase.isEmpty())
134 throw new RuntimeException("Nonempty resultsBase: " + resultsBase);
136 }
137 return true;
138 }
140 private Set<? extends Element> computeResultsBase(RoundEnvironment roundEnvironment, String name) {
141 try {
142 return roundEnvironment.
143 getElementsAnnotatedWith(Class.forName(name).asSubclass(Annotation.class));
144 } catch(ClassNotFoundException cnfe) {
145 throw new RuntimeException(cnfe);
146 }
147 }
149 /**
150 * Verify non-annotation types result in
151 * IllegalArgumentExceptions.
152 */
153 private void testNonAnnotations(RoundEnvironment roundEnvironment) {
154 try {
155 Set<? extends Element> elements = roundEnvironment.getElementsAnnotatedWith((Class)Object.class );
156 throw new RuntimeException("Illegal argument exception not thrown");
157 } catch(IllegalArgumentException iae) {}
159 try {
160 Set<? extends Element> elements =
161 roundEnvironment.getElementsAnnotatedWith(processingEnv.
162 getElementUtils().
163 getTypeElement("java.lang.Object") );
164 throw new RuntimeException("Illegal argument exception not thrown");
165 } catch(IllegalArgumentException iae) {}
166 }
167 }