001: /*
002: * Licensed to the Apache Software Foundation (ASF) under one or more
003: * contributor license agreements. See the NOTICE file distributed with
004: * this work for additional information regarding copyright ownership.
005: * The ASF licenses this file to You under the Apache License, Version 2.0
006: * (the "License"); you may not use this file except in compliance with
007: * the License. You may obtain a copy of the License at
008: *
009: * http://www.apache.org/licenses/LICENSE-2.0
010: *
011: * Unless required by applicable law or agreed to in writing, software
012: * distributed under the License is distributed on an "AS IS" BASIS,
013: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014: * See the License for the specific language governing permissions and
015: * limitations under the License.
016: *
017: */
018:
019: package org.apache.tools.ant.taskdefs.optional.junit;
020:
021: import java.lang.reflect.Method;
022: import junit.framework.Test;
023: import junit.framework.TestCase;
024:
025: /**
026: * Work around for some changes to the public JUnit API between
027: * different JUnit releases.
028: */
029: public class JUnitVersionHelper {
030:
031: private static Method testCaseName = null;
032: static {
033: try {
034: testCaseName = TestCase.class.getMethod("getName",
035: new Class[0]);
036: } catch (NoSuchMethodException e) {
037: // pre JUnit 3.7
038: try {
039: testCaseName = TestCase.class.getMethod("name",
040: new Class[0]);
041: } catch (NoSuchMethodException e2) {
042: // ignore
043: }
044: }
045: }
046:
047: /**
048: * JUnit 3.7 introduces TestCase.getName() and subsequent versions
049: * of JUnit remove the old name() method. This method provides
050: * access to the name of a TestCase via reflection that is
051: * supposed to work with version before and after JUnit 3.7.
052: *
053: * <p>since Ant 1.5.1 this method will invoke "<code>public
054: * String getName()</code>" on any implementation of Test if
055: * it exists.</p>
056: *
057: * <p>Since Ant 1.7 also checks for JUnit4TestCaseFacade explicitly.
058: * This is used by junit.framework.JUnit4TestAdapter.</p>
059: * @param t the test.
060: * @return the name of the test.
061: */
062: public static String getTestCaseName(Test t) {
063: if (t != null
064: && t.getClass().getName().equals(
065: "junit.framework.JUnit4TestCaseFacade")) {
066: // Self-describing as of JUnit 4 (#38811). But trim "(ClassName)".
067: String name = t.toString();
068: if (name.endsWith(")")) {
069: int paren = name.lastIndexOf('(');
070: return name.substring(0, paren);
071: } else {
072: return name;
073: }
074: }
075: if (t instanceof TestCase && testCaseName != null) {
076: try {
077: return (String) testCaseName.invoke(t, new Object[0]);
078: } catch (Throwable e) {
079: // ignore
080: }
081: } else {
082: try {
083: Method getNameMethod = null;
084: try {
085: getNameMethod = t.getClass().getMethod("getName",
086: new Class[0]);
087: } catch (NoSuchMethodException e) {
088: getNameMethod = t.getClass().getMethod("name",
089: new Class[0]);
090: }
091: if (getNameMethod != null
092: && getNameMethod.getReturnType() == String.class) {
093: return (String) getNameMethod.invoke(t,
094: new Object[0]);
095: }
096: } catch (Throwable e) {
097: // ignore
098: }
099: }
100: return "unknown";
101: }
102:
103: /**
104: * Tries to find the name of the class which a test represents
105: * across JUnit 3 and 4.
106: */
107: static String getTestCaseClassName(Test test) {
108: String className = test.getClass().getName();
109: if (test instanceof JUnitTaskMirrorImpl.VmExitErrorTest) {
110: className = ((JUnitTaskMirrorImpl.VmExitErrorTest) test)
111: .getClassName();
112: } else if (className
113: .equals("junit.framework.JUnit4TestCaseFacade")) {
114: // JUnit 4 wraps solo tests this way. We can extract
115: // the original test name with a little hack.
116: String name = test.toString();
117: int paren = name.lastIndexOf('(');
118: if (paren != -1 && name.endsWith(")")) {
119: className = name
120: .substring(paren + 1, name.length() - 1);
121: }
122: }
123: return className;
124: }
125:
126: }
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