Class JUnitClassloaderRunner

java.lang.Object
org.junit.runner.Runner
org.junit.runners.ParentRunner<org.junit.runners.model.FrameworkMethod>
org.junit.runners.BlockJUnit4ClassRunner
se.jiderhamn.classloader.leak.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

  • Nested Class Summary

    Nested Classes
    Modifier and Type
    Class
    Description
    private class 
    JUnitClassloaderRunner.SeparateClassLoaderInvokeMethod
     

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    private static final 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(Class<?> klass)
     

  • Method Summary

    Modifier and Type
    Method
    Description
    private <T> T[]
    appendArrays(T[] arr1, T[] arr2)
    Append two arrays
    private void
    dumpHeap(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 File
    getSurefireReportsDirectory()
    Try to find "target/surefire-reports" directory, assuming this is a Maven build.
    private static File
    getSurefireReportsDirectory(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, 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 Object

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

  • Field Details

    • 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:

  • Constructor Details

    • JUnitClassloaderRunner

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

  • Method Details

    • methodInvoker

      protected org.junit.runners.model.Statement methodInvoker(org.junit.runners.model.FrameworkMethod method, 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 InterruptedException
      Throws:
      InterruptedException

    • dumpHeap

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

    • getSurefireReportsDirectory

      private 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 File getSurefireReportsDirectory(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