Package se.jiderhamn.classloader.leak

Class JUnitClassloaderRunner

  • All Implemented Interfaces:
    org.junit.runner.Describable, org.junit.runner.manipulation.Filterable, org.junit.runner.manipulation.Orderable, org.junit.runner.manipulation.Sortable
    public class JUnitClassloaderRunner
extends org.junit.runners.BlockJUnit4ClassRunner

    • Field Summary

      Fields 
      Modifier and Type Field Description
      private static int HALT_TIME_S
      Number of seconds to halt to allow for heap dump aquirement, if that option is enabled

    • Constructor Summary

      Constructors 
      Constructor Description
      JUnitClassloaderRunner​(java.lang.Class<?> klass)  

    • Method Summary

      All Methods Static Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      private <T> T[] appendArrays​(T[] arr1, T[] arr2)
      Append two arrays
      private void dumpHeap​(java.lang.String testName)
      Create heap dump in file with same name as the test
      static void forceGc()
      Make sure Garbage Collection has been run
      static void forceGc​(int n)
      Make sure Garbage Collection has been run N no of times
      private java.io.File getSurefireReportsDirectory()
      Try to find "target/surefire-reports" directory, assuming this is a Maven build.
      private static java.io.File getSurefireReportsDirectory​(java.lang.Class<?> clazz)
      Try to find "target/surefire-reports" directory, assuming this is a Maven build.
      protected org.junit.runners.model.Statement methodInvoker​(org.junit.runners.model.FrameworkMethod method, java.lang.Object test)  
      private static void waitForHeapDump()  

      • Methods inherited from class org.junit.runners.BlockJUnit4ClassRunner

        collectInitializationErrors, computeTestMethods, createTest, createTest, describeChild, getChildren, getTestRules, isIgnored, methodBlock, possiblyExpectingExceptions, rules, runChild, testName, validateConstructor, validateFields, validateInstanceMethods, validateNoNonStaticInnerClass, validateOnlyOneConstructor, validateTestMethods, validateZeroArgConstructor, withAfters, withBefores, withPotentialTimeout

      • Methods inherited from class org.junit.runners.ParentRunner

        childrenInvoker, classBlock, classRules, createTestClass, filter, getDescription, getName, getRunnerAnnotations, getTestClass, order, run, runLeaf, setScheduler, sort, validatePublicVoidNoArgMethods, withAfterClasses, withBeforeClasses, withInterruptIsolation

      • Methods inherited from class org.junit.runner.Runner

        testCount

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Field Detail

      • HALT_TIME_S

        private static final int HALT_TIME_S
        Number of seconds to halt to allow for heap dump aquirement, if that option is enabled
        See Also:
        Constant Field Values

    • Constructor Detail

      • JUnitClassloaderRunner

        public JUnitClassloaderRunner​(java.lang.Class<?> klass)
                       throws org.junit.runners.model.InitializationError
        Throws:
        org.junit.runners.model.InitializationError

    • Method Detail

      • methodInvoker

        protected org.junit.runners.model.Statement methodInvoker​(org.junit.runners.model.FrameworkMethod method,
                                                          java.lang.Object test)
        Overrides:
        methodInvoker in class org.junit.runners.BlockJUnit4ClassRunner

      • forceGc

        public static void forceGc​(int n)
        Make sure Garbage Collection has been run N no of times

      • forceGc

        public static void forceGc()
        Make sure Garbage Collection has been run

      • waitForHeapDump

        private static void waitForHeapDump()
                             throws java.lang.InterruptedException
        Throws:
        java.lang.InterruptedException

      • dumpHeap

        private void dumpHeap​(java.lang.String testName)
        Create heap dump in file with same name as the test

      • getSurefireReportsDirectory

        private java.io.File getSurefireReportsDirectory()
        Try to find "target/surefire-reports" directory, assuming this is a Maven build. Returns null it not found, not writable or other error.

      • getSurefireReportsDirectory

        private static java.io.File getSurefireReportsDirectory​(java.lang.Class<?> clazz)
        Try to find "target/surefire-reports" directory, assuming this is a Maven build. Returns null it not found, not writable or other error.

      • appendArrays

        private <T> T[] appendArrays​(T[] arr1,
                             T[] arr2)
        Append two arrays