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1
7 package com.tirsen.nanning.samples;
8
9 import com.tirsen.nanning.config.AspectSystem;
10 import com.tirsen.nanning.config.InterceptorAspect;
11 import com.tirsen.nanning.config.Introductor;
12 import junit.framework.TestCase;
13
14 import java.util.ArrayList  ;
15 import java.util.Iterator ;
16 import java.util.List ;
17
18 import org.apache.commons.logging.impl.SimpleLog;
19 import org.apache.commons.logging.impl.NoOpLog;
20 import org.apache.commons.logging.Log;
21
22
30 public class TraceInterceptorTest extends TestCase {
31 public static class MockLogger implements Log {
32 private List expectMessages = new ArrayList ();
33 private List actualMessages = new ArrayList ();
34
35 public void error(Object message, Throwable throwable) {
36 actualMessages.add("ERROR " + message);
37 }
38
39 public void debug(Object message) {
40 actualMessages.add(String.valueOf(message));
41 }
42
43 public void expectAddMessage(String messageToExpect) {
44 expectMessages.add(messageToExpect);
45 }
46
47 public void verify() {
48 Iterator actualIterator = actualMessages.iterator();
49 Iterator expectIterator = expectMessages.iterator();
50 while (expectIterator.hasNext()) {
51 String expectedMessage = (String ) expectIterator.next();
52 assertTrue("log output not as expected", actualIterator.hasNext());
53 String actualMessage = (String ) actualIterator.next();
54 assertTrue("log output does not match: " + expectedMessage, actualMessage.startsWith(expectedMessage));
55 }
56 }
57
58 public void reset() {
59 actualMessages.clear();
60 expectMessages.clear();
61 }
62
63 public boolean isDebugEnabled() {
65 return true;
66 }
67
68 public boolean isErrorEnabled() {
69 return false;
70 }
71
72 public boolean isFatalEnabled() {
73 return false;
74 }
75
76 public boolean isInfoEnabled() {
77 return false;
78 }
79
80 public boolean isTraceEnabled() {
81 return false;
82 }
83
84 public boolean isWarnEnabled() {
85 return false;
86 }
87
88 public void trace(Object o) {
89 }
90
91 public void trace(Object o, Throwable throwable) {
92 }
93
94 public void debug(Object o, Throwable throwable) {
95 }
96
97 public void info(Object o) {
98 }
99
100 public void info(Object o, Throwable throwable) {
101 }
102
103 public void warn(Object o) {
104 }
105
106 public void warn(Object o, Throwable throwable) {
107 }
108
109 public void error(Object o) {
110 }
111
112 public void fatal(Object o) {
113 }
114
115 public void fatal(Object o, Throwable throwable) {
116 }
117 }
119
120 public static interface Intf {
121 String call(String arg, String arg2);
122 }
123
124 public static class Impl implements Intf {
125 public String call(String arg, String arg2) {
126 return "hej tillbax!";
127 }
128 }
129
130 public static class ErrorImpl implements Intf {
131 public String call(String arg, String arg2) {
132 throw new RuntimeException ("ERROR");
133 }
134 }
135
136 public void testLogInterceptor() throws InstantiationException , IllegalAccessException {
137 AspectSystem system = new AspectSystem();
138 MockLogger mockLogger = new MockLogger();
139 system.addAspect(new InterceptorAspect(new TraceInterceptor(mockLogger)));
140 system.addAspect(new Introductor(Intf.class, Impl.class));
141
142 mockLogger.expectAddMessage(">>> call(hej, svej)");
143 mockLogger.expectAddMessage("<<< call(hej, svej), took");
144 Intf intf = (Intf) system.newInstance(Intf.class);
145 intf.call("hej", "svej");
146 mockLogger.verify();
147 }
148 }
149 |
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