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1
21 package db4ounit;
22
23 import java.lang.reflect.InvocationTargetException  ;
24 import java.lang.reflect.Method ;
25
26
29 public class TestMethod implements Test {
30
31 public interface LabelProvider {
32 String getLabel(TestMethod method);
33 }
34
35 public static LabelProvider DEFAULT_LABEL_PROVIDER = new LabelProvider() {
36 public String getLabel(TestMethod method) {
37 return method.getSubject().getClass().getName() + "." + method.getMethod().getName();
38 }
39 };
40
41 private final Object _subject;
42 private final Method _method;
43 private final LabelProvider _labelProvider;
44
45 public TestMethod(Object instance, Method method) {
46 this(instance, method, DEFAULT_LABEL_PROVIDER);
47 }
48
49 public TestMethod(Object instance, Method method, LabelProvider labelProvider) {
50 if (null == instance) throw new IllegalArgumentException ("instance");
51 if (null == method) throw new IllegalArgumentException ("method");
52 if (null == labelProvider) throw new IllegalArgumentException ("labelProvider");
53 _subject = instance;
54 _method = method;
55 _labelProvider = labelProvider;
56 }
57
58 public Object getSubject() {
59 return _subject;
60 }
61
62 public Method getMethod() {
63 return _method;
64 }
65
66 public String getLabel() {
67 return _labelProvider.getLabel(this);
68 }
69
70 public void run(TestResult result) {
71 try {
72 result.testStarted(this);
73 setUp();
74 invoke();
75 } catch (InvocationTargetException e) {
76 result.testFailed(this, e.getTargetException());
77 } catch (Exception e) {
78 result.testFailed(this, e);
79 } finally {
80 try {
81 tearDown();
82 } catch (TestException e) {
83 result.testFailed(this, e);
84 }
85 }
86 }
87
88 protected void invoke() throws Exception {
89 _method.invoke(_subject, new Object [0]);
90 }
91
92 protected void tearDown() {
93 if (_subject instanceof TestLifeCycle) {
94 try {
95 ((TestLifeCycle)_subject).tearDown();
96 } catch (Exception e) {
97 throw new TearDownFailureException(e);
98 }
99 }
100 }
101
102 protected void setUp() {
103 if (_subject instanceof TestLifeCycle) {
104 try {
105 ((TestLifeCycle)_subject).setUp();
106 } catch (Exception e) {
107 throw new SetupFailureException(e);
108 }
109 }
110 }
111 }
112 |
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