dalvik/dx/src/junit/runner/LoadingTestCollector.java

   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  */
  13 public class LoadingTestCollector extends ClassPathTestCollector {
  14
  15         TestCaseClassLoader fLoader;
  16
  17         public LoadingTestCollector() {
  18                 fLoader= new TestCaseClassLoader();
  19         }
  20
  21         protected boolean isTestClass(String classFileName) {
  22                 try {
  23                         if (classFileName.endsWith(".class")) {
  24                                 Class testClass= classFromFile(classFileName);
  25                                 return (testClass != null) && isTestClass(testClass);
  26                         }
  27                 }
  28                 catch (ClassNotFoundException expected) {
  29                 }
  30                 catch (NoClassDefFoundError notFatal) {
  31                 }
  32                 return false;
  33         }
  34
  35         Class classFromFile(String classFileName) throws ClassNotFoundException {
  36                 String className= classNameFromFile(classFileName);
  37                 if (!fLoader.isExcluded(className))
  38                         return fLoader.loadClass(className, false);
  39                 return null;
  40         }
  41
  42         boolean isTestClass(Class testClass) {
  43                 if (hasSuiteMethod(testClass))
  44                         return true;
  45                 if (Test.class.isAssignableFrom(testClass) &&
  46                         Modifier.isPublic(testClass.getModifiers()) &&
  47                         hasPublicConstructor(testClass))
  48                         return true;
  49                 return false;
  50         }
  51
  52         boolean hasSuiteMethod(Class testClass) {
  53                 try {
  54                         testClass.getMethod(BaseTestRunner.SUITE_METHODNAME, new Class[0]);
  55                 } catch(Exception e) {
  56                         return false;
  57                 }
  58                 return true;
  59         }
  60
  61         boolean hasPublicConstructor(Class testClass) {
  62                 try {
  63                         TestSuite.getTestConstructor(testClass);
  64                 } catch(NoSuchMethodException e) {
  65                         return false;
  66                 }
  67                 return true;
  68         }
  69 }