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1 package com.tirsen.nanning.samples;
2
3 import com.tirsen.nanning.attribute.AbstractAttributesTest;
4 import com.tirsen.nanning.AspectInstance;
5 import com.tirsen.nanning.MixinInstance;
6
7 import java.lang.reflect.Method  ;
8
9 public class CacheInterceptorTest extends AbstractAttributesTest {
10 private Method someHeavyCalculationMethod;
11 private CacheInterceptor cacheInterceptor;
12 private boolean wasCalled;
13
14 protected void setUp() throws Exception {
15 super.setUp();
16
17 cacheInterceptor = new CacheInterceptor();
18 someHeavyCalculationMethod =
19 CacheTestCalculations.class.getMethod("someHeavyCalculation",
20 new Class [] { double.class } );
21 }
22
23 public void testIntercept() {
24 AspectInstance aspectInstance = new AspectInstance();
25 MixinInstance mixin = new MixinInstance(CacheTestCalculations.class, null);
26 mixin.addInterceptor(someHeavyCalculationMethod, cacheInterceptor);
27 aspectInstance.addMixin(mixin);
28 mixin.setTarget(new CacheTestCalculations() {
29 public double someHeavyCalculation(double input) {
30 wasCalled = true;
31 return input;
32 }
33 });
34 CacheTestCalculations cacheTestCalculations = (CacheTestCalculations) aspectInstance.getProxy();
35
36 assertFalse(wasCalled);
38 assertEquals(0, cacheTestCalculations.someHeavyCalculation(0), 0);
39 assertTrue(wasCalled);
40
41 wasCalled = false;
43 assertEquals(0, cacheTestCalculations.someHeavyCalculation(0), 0);
44 assertFalse(wasCalled);
45
46 cacheInterceptor.clearCache();
48 wasCalled = false;
49 assertEquals(0, cacheTestCalculations.someHeavyCalculation(0), 0);
50 assertTrue(wasCalled);
51 }
52
53 public void testFilterMethod() throws NoSuchMethodException {
54 assertTrue(cacheInterceptor.interceptsMethod(
55 someHeavyCalculationMethod));
56 assertFalse(cacheInterceptor.interceptsMethod(
57 Object .class.getMethod("toString", null)));
58 }
59 }
60 |
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