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comparison HowTo/Aspects/CacheAspect.cs @ 0:f990fcb411a9

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Копия текущей версии из github
author cin
date Thu, 27 Mar 2014 21:46:09 +0400
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-1:000000000000 0:f990fcb411a9
1 using System;
2 using System.Reflection;
3
4 using NUnit.Framework;
5
6 using BLToolkit.Aspects;
7 using BLToolkit.Reflection;
8
9 namespace HowTo.Aspects
10 {
11 public /*[a]*/abstract/*[/a]*/ class TestClass
12 {
13 public static int Value;
14
15 // This is a method we will cache. Cached return value depends on input parameters.
16 // We will change the 'Value' field outside of the class and see how it affects the result.
17 //
18 [/*[a]*/Cache/*[/a]*/(MaxCacheTime=500, IsWeak=false)]
19 public /*[a]*/virtual/*[/a]*/ int CachedMethod(int p1, int p2)
20 {
21 return Value;
22 }
23
24 public static TestClass CreateInstance()
25 {
26 // Use TypeAccessor to create an instance of an abstract class.
27 //
28 return /*[a]*/TypeAccessor/*[/a]*/<TestClass>.CreateInstance();
29 }
30 }
31
32 [TestFixture]
33 public class CacheAspectTest
34 {
35 [Test]
36 public void Test1()
37 {
38 TestClass tc = TestClass.CreateInstance();
39
40 DateTime begin = DateTime.Now;
41
42 // Initial setup for the test static variable.
43 //
44 TestClass.Value = 777;
45
46 while (tc.CachedMethod(2, 2) == 777)
47 {
48 // This change will not affect the Test method return value for 500 ms.
49 //
50 TestClass.Value++;
51 }
52
53 double totalMilliseconds = (DateTime.Now - begin).TotalMilliseconds;
54
55 Assert.GreaterOrEqual(totalMilliseconds, 500);
56 }
57
58 [Test]
59 public void Test2()
60 {
61 TestClass tc = TestClass.CreateInstance();
62
63 // Return value depends on parameter values.
64 //
65 TestClass.Value = /*[a]*/1/*[/a]*/; Assert.AreEqual(/*[a]*/1/*[/a]*/, tc.CachedMethod(1, 1));
66 TestClass.Value = /*[a]*/2/*[/a]*/; Assert.AreEqual(/*[a]*/1/*[/a]*/, tc.CachedMethod(1, 1)); // no change
67 TestClass.Value = /*[a]*/3/*[/a]*/; Assert.AreEqual(/*[a]*/3/*[/a]*/, tc.CachedMethod(2, 1));
68
69 // However we can clear cache manually.
70 // For particular method:
71 //
72 CacheAspect.ClearCache(typeof(TestClass), "CachedMethod", typeof(int), typeof(int));
73 TestClass.Value = /*[a]*/4/*[/a]*/; Assert.AreEqual(/*[a]*/4/*[/a]*/, tc.CachedMethod(2, 1));
74
75 // By MethodInfo:
76 //
77 MethodInfo methodInfo = tc.GetType().GetMethod("CachedMethod", new Type[] { typeof(int), typeof(int) });
78 CacheAspect.ClearCache(methodInfo);
79 TestClass.Value = /*[a]*/5/*[/a]*/; Assert.AreEqual(/*[a]*/5/*[/a]*/, tc.CachedMethod(2, 1));
80
81 // For the all cached methods.
82 //
83 CacheAspect.ClearCache();
84 TestClass.Value = /*[a]*/6/*[/a]*/; Assert.AreEqual(/*[a]*/6/*[/a]*/, tc.CachedMethod(2, 1));
85 }
86 }
87 }