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package org.apache.maven.surefire.common.junit3; |
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import org.apache.maven.surefire.util.NestedRuntimeException; |
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import org.apache.maven.surefire.util.ReflectionUtils; |
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import java.lang.reflect.Constructor; |
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import java.lang.reflect.InvocationTargetException; |
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import java.lang.reflect.Method; |
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import java.lang.reflect.Modifier; |
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public final class JUnit3Reflector |
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{ |
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private static final String TEST_CASE = "junit.framework.Test"; |
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private static final String TEST_RESULT = "junit.framework.TestResult"; |
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private static final String TEST_LISTENER = "junit.framework.TestListener"; |
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private static final String TEST = "junit.framework.Test"; |
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private static final String ADD_LISTENER_METHOD = "addListener"; |
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private static final String RUN_METHOD = "run"; |
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private static final String TEST_SUITE = "junit.framework.TestSuite"; |
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private final Class[] interfacesImplementedByDynamicProxy; |
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private final Class testResultClass; |
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private final Method addListenerMethod; |
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private final Method testInterfaceRunMethod; |
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54 | 0 | private static final Class[] EMPTY_CLASS_ARRAY = new Class[0]; |
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56 | 0 | private static final Object[] EMPTY_OBJECT_ARRAY = new Object[0]; |
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private final Class testInterface; |
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private final Class testCase; |
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private final Constructor testsSuiteConstructor; |
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public JUnit3Reflector( ClassLoader testClassLoader ) |
65 | 0 | { |
66 | 0 | testResultClass = ReflectionUtils.tryLoadClass( testClassLoader, TEST_RESULT ); |
67 | 0 | testCase = ReflectionUtils.tryLoadClass( testClassLoader, TEST_CASE ); |
68 | 0 | testInterface = ReflectionUtils.tryLoadClass( testClassLoader, TEST ); |
69 | 0 | interfacesImplementedByDynamicProxy = |
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new Class[]{ ReflectionUtils.tryLoadClass( testClassLoader, TEST_LISTENER ) }; |
71 | 0 | Class[] constructorParamTypes = { Class.class }; |
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73 | 0 | Class testSuite = ReflectionUtils.tryLoadClass( testClassLoader, TEST_SUITE ); |
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77 | 0 | Class[] addListenerParamTypes = interfacesImplementedByDynamicProxy; |
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79 | 0 | if ( isJUnit3Available() ) |
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{ |
81 | 0 | testsSuiteConstructor = ReflectionUtils.getConstructor( testSuite, constructorParamTypes ); |
82 | 0 | addListenerMethod = tryGetMethod( testResultClass, ADD_LISTENER_METHOD, addListenerParamTypes ); |
83 | 0 | testInterfaceRunMethod = getMethod( testInterface, RUN_METHOD, new Class[]{ testResultClass } ); |
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} |
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else |
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{ |
87 | 0 | testsSuiteConstructor = null; |
88 | 0 | addListenerMethod = null; |
89 | 0 | testInterfaceRunMethod = null; |
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} |
91 | 0 | } |
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private static Method tryGetMethod( Class clazz, String methodName, Class[] parameters ) |
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{ |
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try |
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{ |
98 | 0 | return clazz.getMethod( methodName, parameters ); |
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} |
100 | 0 | catch ( NoSuchMethodException e ) |
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{ |
102 | 0 | return null; |
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} |
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} |
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private static Method getMethod( Class clazz, String methodName, Class[] parameters ) |
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{ |
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try |
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{ |
110 | 0 | return clazz.getMethod( methodName, parameters ); |
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} |
112 | 0 | catch ( NoSuchMethodException e ) |
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{ |
114 | 0 | throw new NestedRuntimeException( "When finding method " + methodName, e ); |
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} |
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} |
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public Object constructTestObject( Class testClass ) |
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throws IllegalAccessException, InvocationTargetException, NoSuchMethodException, InstantiationException, |
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ClassNotFoundException |
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{ |
123 | 0 | Object testObject = createInstanceFromSuiteMethod( testClass ); |
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|
125 | 0 | if ( testObject == null && testCase.isAssignableFrom( testClass ) ) |
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{ |
127 | 0 | Object[] constructorParams = { testClass }; |
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129 | 0 | testObject = testsSuiteConstructor.newInstance( constructorParams ); |
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} |
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132 | 0 | if ( testObject == null ) |
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{ |
134 | 0 | Constructor testConstructor = getTestConstructor( testClass ); |
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136 | 0 | if ( testConstructor.getParameterTypes().length == 0 ) |
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{ |
138 | 0 | testObject = testConstructor.newInstance( EMPTY_OBJECT_ARRAY ); |
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} |
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else |
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{ |
142 | 0 | testObject = testConstructor.newInstance( new Object[]{ testClass.getName() } ); |
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} |
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} |
145 | 0 | return testObject; |
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} |
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private static Object createInstanceFromSuiteMethod( Class testClass ) |
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throws IllegalAccessException, InvocationTargetException |
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{ |
151 | 0 | Object testObject = null; |
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try |
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{ |
154 | 0 | Method suiteMethod = testClass.getMethod( "suite", EMPTY_CLASS_ARRAY ); |
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156 | 0 | if ( Modifier.isPublic( suiteMethod.getModifiers() ) && Modifier.isStatic( suiteMethod.getModifiers() ) ) |
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{ |
158 | 0 | testObject = suiteMethod.invoke( null, EMPTY_CLASS_ARRAY ); |
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} |
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} |
161 | 0 | catch ( NoSuchMethodException e ) |
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{ |
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164 | 0 | } |
165 | 0 | return testObject; |
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} |
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private static Constructor getTestConstructor( Class testClass ) |
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throws NoSuchMethodException |
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{ |
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Constructor constructor; |
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try |
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{ |
174 | 0 | constructor = testClass.getConstructor( new Class[]{ String.class } ); |
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} |
176 | 0 | catch ( NoSuchMethodException e ) |
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{ |
178 | 0 | constructor = testClass.getConstructor( EMPTY_CLASS_ARRAY ); |
179 | 0 | } |
180 | 0 | return constructor; |
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} |
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public Class[] getInterfacesImplementedByDynamicProxy() |
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{ |
185 | 0 | return interfacesImplementedByDynamicProxy; |
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} |
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public Class getTestResultClass() |
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{ |
190 | 0 | return testResultClass; |
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} |
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public Method getAddListenerMethod() |
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{ |
195 | 0 | return addListenerMethod; |
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} |
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public Method getTestInterfaceRunMethod() |
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{ |
200 | 0 | return testInterfaceRunMethod; |
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} |
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public Class getTestInterface() |
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{ |
205 | 0 | return testInterface; |
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} |
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public Method getRunMethod( Class testClass ) |
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{ |
210 | 0 | return getMethod( testClass, RUN_METHOD, new Class[]{ getTestResultClass() } ); |
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} |
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public boolean isJUnit3Available() |
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{ |
215 | 0 | return testResultClass != null; |
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} |
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} |