1 package junit.runner; 2 3 import java.lang.reflect.*; 4 import junit.runner.*; 5 import junit.framework.*; 6 7 /** 8 * An implementation of a TestCollector that loads 9 * all classes on the class path and tests whether 10 * it is assignable from Test or provides a static suite method. 11 * @see TestCollector 12 * {@hide} - Not needed for 1.0 SDK 13 */ 14 public class LoadingTestCollector extends ClassPathTestCollector { 15 16 TestCaseClassLoader fLoader; 17 18 public LoadingTestCollector() { 19 fLoader= new TestCaseClassLoader(); 20 } 21 22 protected boolean isTestClass(String classFileName) { 23 try { 24 if (classFileName.endsWith(".class")) { 25 Class testClass= classFromFile(classFileName); 26 return (testClass != null) && isTestClass(testClass); 27 } 28 } 29 catch (ClassNotFoundException expected) { 30 } 31 catch (NoClassDefFoundError notFatal) { 32 } 33 return false; 34 } 35 36 Class classFromFile(String classFileName) throws ClassNotFoundException { 37 String className= classNameFromFile(classFileName); 38 if (!fLoader.isExcluded(className)) 39 return fLoader.loadClass(className, false); 40 return null; 41 } 42 43 boolean isTestClass(Class testClass) { 44 if (hasSuiteMethod(testClass)) 45 return true; 46 if (Test.class.isAssignableFrom(testClass) && 47 Modifier.isPublic(testClass.getModifiers()) && 48 hasPublicConstructor(testClass)) 49 return true; 50 return false; 51 } 52 53 boolean hasSuiteMethod(Class testClass) { 54 try { 55 testClass.getMethod(BaseTestRunner.SUITE_METHODNAME, new Class[0]); 56 } catch(Exception e) { 57 return false; 58 } 59 return true; 60 } 61 62 boolean hasPublicConstructor(Class testClass) { 63 try { 64 TestSuite.getTestConstructor(testClass); 65 } catch(NoSuchMethodException e) { 66 return false; 67 } 68 return true; 69 } 70 } 71
