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1
19 package org.netbeans.modules.java.hints;
20
21 import java.lang.ref.Reference  ;
22 import java.lang.ref.WeakReference ;
23 import org.netbeans.api.java.source.CompilationInfo;
24 import org.netbeans.junit.NbTestCase;
25 import org.openide.filesystems.FileObject;
26 import org.openide.filesystems.FileSystem;
27 import org.openide.filesystems.FileUtil;
28
29
33 public class LazyHintComputationTest extends NbTestCase {
34
35
36 public LazyHintComputationTest(String name) {
37 super(name);
38 }
39
40 private FileObject data;
41
42 @Override
43 public void setUp() throws Exception {
44 FileSystem fs = FileUtil.createMemoryFileSystem();
45 data = fs.getRoot().createData("test.java");
46 }
47
48 public void testCancel() throws Exception {
49 final LazyHintComputation c = new LazyHintComputation(data);
50 boolean[] first = new boolean[1];
51 boolean[] second = new boolean[1];
52 boolean[] third = new boolean[1];
53 final boolean[] callback = new boolean[1];
54 final boolean[] doCancel = new boolean[] {true};
55 final boolean[] firstCancelled = new boolean[1];
56 final boolean[] secondCancelled = new boolean[1];
57 final boolean[] thirdCancelled = new boolean[1];
58
59 LazyHintComputationFactory.addToCompute(data, new CreatorBasedLazyFixListImpl(first, null, new Runnable () {
60 public void run() {
61 firstCancelled[0] = true;
62 }
63 }));
64
65 LazyHintComputationFactory.addToCompute(data, new CreatorBasedLazyFixListImpl(second, new Runnable () {
66 public void run() {
67 if (doCancel[0]) {
68 c.cancel();
69 callback[0] = true;
70 }
71 }
72 }, new Runnable () {
73 public void run() {
74 secondCancelled[0] = true;
75 }
76 }));
77
78 LazyHintComputationFactory.addToCompute(data, new CreatorBasedLazyFixListImpl(third, null, new Runnable () {
79 public void run() {
80 thirdCancelled[0] = true;
81 }
82 }));
83
84 c.run(null);
85
86 assertTrue(first[0]);
87 assertTrue(second[0]);
88 assertFalse(third[0]);
89 assertTrue(callback[0]);
90 assertFalse(firstCancelled[0]);
91 assertTrue(secondCancelled[0]);
92 assertFalse(thirdCancelled[0]);
93
94 first[0] = second[0] = callback[0] = secondCancelled[0] = false;
95
96 doCancel[0] = false;
97
98 c.run(null);
99
100 assertFalse(first[0]);
101 assertTrue(second[0]);
102 assertTrue(third[0]);
103 assertFalse(callback[0]);
104 assertFalse(firstCancelled[0]);
105 assertFalse(secondCancelled[0]);
106 assertFalse(thirdCancelled[0]);
107 }
108
109 public void test88996() throws Exception {
110 boolean[] computed = new boolean[1];
111
112 CreatorBasedLazyFixListImpl l = new CreatorBasedLazyFixListImpl(data, computed, null, null);
113
114 l.getFixes();
115
116 Reference r = new WeakReference (l);
117
118 l = null;
119
120 assertGC("Not holding the CreatorBasedLazyFixList hard", r);
121 }
122
123 private static final class CreatorBasedLazyFixListImpl extends CreatorBasedLazyFixList {
124
125 private final boolean[] marker;
126 private final Runnable callback;
127 private final Runnable cancelCallback;
128
129 public CreatorBasedLazyFixListImpl(FileObject file, boolean[] marker, Runnable callback, Runnable cancelCallback) {
130 super(file, null, -1, null, null);
131 this.marker = marker;
132 this.callback = callback;
133 this.cancelCallback = cancelCallback;
134 }
135
136 public CreatorBasedLazyFixListImpl(boolean[] marker, Runnable callback, Runnable cancelCallback) {
137 this(null, marker, callback, cancelCallback);
138 }
139
140 @Override
141 public void compute(CompilationInfo info) {
142 marker[0] = true;
143
144 if (callback != null)
145 callback.run();
146 }
147
148 @Override
149 public void cancel() {
150 if (cancelCallback != null) {
151 cancelCallback.run();
152 }
153 }
154 }
155
156 }
157 |
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