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1 package dynaop;
2
3 import java.lang.reflect.Method  ;
4 import java.util.ArrayList ;
5 import java.util.List ;
6
7 import dynaop.util.Classes;
8
9 import junit.framework.TestCase;
10
11
16 public class DispatchInterceptorTest extends TestCase {
17
18 public void testMethodPointcut() throws Exception {
19 MethodPointcut mp = DispatchInterceptor.methodPointcut(A.class);
20 assertFalse(mp.picks(Classes.EQUALS_METHOD));
21 assertFalse(mp.picks(ArrayList .class.getMethod("iterator", null)));
22 assertTrue(mp.picks(ArrayList .class.getMethod("size", null)));
23 }
24
25 public void testMultipleInterceptors() throws Throwable {
26 InvocationImpl invocation = new InvocationImpl();
27 invocation.setInterceptors(new Interceptor[] { new A(), new B() });
28 invocation.setTarget(new ArrayList ());
29 invocation.setMethod(List .class.getMethod("size", null));
30 invocation.setProxy(
31 new MockProxy() {
32 public ProxyContext getProxyContext() {
33 return new MockProxyContext() {
34 public boolean isClassProxy() {
35 return false;
36 }
37 };
38 }
39 }
40 );
41 invocation.proceed();
42 }
43
44 public void testObjectMethods() {
45 Object foo = new Object () {
46 public int hashCode() {
47 return 5;
48 }
49 public String toString() {
50 return "test";
51 }
52 public boolean equals(Object o) {
53 return true;
54 }
55 };
56
57 ProxyTypeBuilder builder = new ProxyTypeBuilder(Object .class);
58 Aspects aspects = new Aspects();
59 aspects.interceptor(Pointcuts.ALL_CLASSES, Pointcuts.ALL_METHODS,
60 TestDispatchInterceptor.class, null);
61
62 ProxyFactory factory =
63 ProxyFactory.getInstance(aspects);
64 foo = factory.wrap(foo);
65
66 assertEquals(5, foo.hashCode());
67 assertEquals("test", foo.toString());
68 assertTrue(foo.equals(null));
69 }
70
71 public void testDispatch() {
72 Aspects aspects = new Aspects();
73 aspects.interceptor(Pointcuts.ALL_CLASSES, Pointcuts.ALL_METHODS,
74 TestDispatchInterceptor.class, null);
75 aspects.interfaces(Pointcuts.ALL_CLASSES, new Class [] { List .class });
76
77 ProxyFactory factory =
78 ProxyFactory.getInstance(aspects);
79 List list = (List ) factory.wrap(new ArrayList ());
80
81 assertEquals(5, list.size());
82 }
83
84 public void testIsInterceptMethod() throws Throwable {
85 Method method = List .class.getMethod("size", null);
86 Method intercept = Interceptor.class.getMethod("intercept",
87 new Class [] { Invocation.class });
88 DispatchInterceptor interceptor = new DispatchInterceptor() {};
89 assertFalse(DispatchInterceptor.isInterceptMethod(method));
90 assertTrue(DispatchInterceptor.isInterceptMethod(intercept));
91 }
92
93 public void testCacheNull() throws Throwable {
94 DispatchInterceptor interceptor = new DispatchInterceptor() {};
95 Method method = List .class.getMethod("size", null);
96 interceptor.getDispatchMethod(method);
97 assertNull(interceptor.cache.get(method));
98 }
99
100 public void testCacheMethod() throws Throwable {
101 DispatchInterceptor interceptor = new DispatchInterceptor() {
102 public void size() throws Throwable {
103 proceed();
104 }
105 };
106
107 Method method = List .class.getMethod("size", null);
108 interceptor.getDispatchMethod(method);
109 assertNotNull(interceptor.cache.get(method));
110 }
111
112 public void testSetInvocation() {
113 Invocation i = new InvocationImpl();
114 DispatchInterceptor interceptor = new DispatchInterceptor() {};
115 interceptor.setInvocation(i);
116 assertSame(i, interceptor.getInvocation());
117 }
118
119 public void testProceed() throws Throwable {
120 final boolean[] proceedCalled = new boolean[1];
121 Invocation i = new InvocationImpl() {
122 public Object proceed() {
123 proceedCalled[0] = true;
124 return null;
125 }
126 };
127
128 DispatchInterceptor interceptor = new DispatchInterceptor() {};
129 interceptor.setInvocation(i);
130 interceptor.proceed();
131 assertTrue(proceedCalled[0]);
132 }
133
134 public static class TestDispatchInterceptor extends DispatchInterceptor {
135 public int size() {
136 return 5;
137 }
138 }
139
140 public static class A extends DispatchInterceptor {
141 public int size() throws Throwable {
142 return ((Integer ) proceed()).intValue();
143 }
144 }
145
146 public static class B extends DispatchInterceptor {
147 public int size() throws Throwable {
148 return ((Integer ) proceed()).intValue();
149 }
150 }
151 }
152
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