Examples of TestClassloaderWithRewriting

org.springsource.loaded.test.infra.TestClassloaderWithRewriting
The groovy infrastructure caches lots of stuff about classes during execution. Although we can actively clear our some of this, we do need to modify the groovy infrastructure so that reflective calls are intercepted. Unlike TestClassLoader which is a simple URLClassLoader, this classloader extends ClassLoader, allowing us to get in there and modify the bytes with an interception rewrite. @author Andy Clement

Examples of org.springsource.loaded.test.infra.TestClassloaderWithRewriting


  // Accessing a field from another type, which just turns into property
  // access via a method
  @Test
  public void fields() throws Exception {
    binLoader = new TestClassloaderWithRewriting();
    String a = "simple.Front";
    String b = "simple.Back";
    TypeRegistry r = getTypeRegistry(a + "," + b);
    ReloadableType rtypea = r.addType(a, loadBytesForClass(a));
    ReloadableType rtypeb = r.addType(b, loadBytesForClass(b));

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Examples of org.springsource.loaded.test.infra.TestClassloaderWithRewriting


  // test is too sensitive to changes between groovy compiler versions
  @Ignore
  @Test
  public void reflection() throws Exception {
    binLoader = new TestClassloaderWithRewriting();
    String a = "simple.SelfReflector";
    TypeRegistry r = getTypeRegistry(a);
    ReloadableType rtypea = r.addType(a, loadBytesForClass(a));
    result = runUnguarded(rtypea.getClazz(), "run");

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Examples of org.springsource.loaded.test.infra.TestClassloaderWithRewriting


  // TODO why doesn't this need swapInit? Is that only required for static
  // field constants?
  @Test
  public void localVariables() throws Exception {
    binLoader = new TestClassloaderWithRewriting();
    String a = "simple.LFront";
    TypeRegistry r = getTypeRegistry(a);
    ReloadableType rtypea = r.addType(a, loadBytesForClass(a));
    result = runUnguarded(rtypea.getClazz(), "run");
    assertEquals("abc", result.returnValue);

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Examples of org.springsource.loaded.test.infra.TestClassloaderWithRewriting

    assertEquals(88, result.returnValue);
  }


  @Test
  public void fieldsOnInstance() throws Exception {
    binLoader = new TestClassloaderWithRewriting();
    String a = "simple.Front";
    String b = "simple.Back";
    TypeRegistry r = getTypeRegistry(a + "," + b);
    ReloadableType rtypea = r.addType(a, loadBytesForClass(a));
    ReloadableType rtypeb = r.addType(b, loadBytesForClass(b));

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Examples of org.springsource.loaded.test.infra.TestClassloaderWithRewriting

  }


  // Changing the return value within a method
  @Test
  public void basic() throws Exception {
    binLoader = new TestClassloaderWithRewriting();
    String t = "simple.Basic";
    TypeRegistry r = getTypeRegistry(t);
    ReloadableType rtype = r.addType(t, loadBytesForClass(t));
    result = runUnguarded(rtype.getClazz(), "run");
    assertEquals("hello", result.returnValue);

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Examples of org.springsource.loaded.test.infra.TestClassloaderWithRewriting

    assertEquals("goodbye", result.returnValue);
  }


  @Test
  public void basicInstance() throws Exception {
    binLoader = new TestClassloaderWithRewriting();
    String t = "simple.Basic";
    TypeRegistry r = getTypeRegistry(t);
    ReloadableType rtype = r.addType(t, loadBytesForClass(t));
    Object instance = null;
    instance = rtype.getClazz().newInstance();

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Examples of org.springsource.loaded.test.infra.TestClassloaderWithRewriting

  // The method calls another method to get the return string, test
  // that when the method we are calling changes, we do call the new
  // one (simply checking the callsite cache is reset)
  @Test
  public void basic2() throws Exception {
    binLoader = new TestClassloaderWithRewriting();
    String t = "simple.BasicB";
    TypeRegistry r = getTypeRegistry(t);
    ReloadableType rtype = r.addType(t, loadBytesForClass(t));
    result = runUnguarded(rtype.getClazz(), "run");
    assertEquals("hello", result.returnValue);

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Examples of org.springsource.loaded.test.infra.TestClassloaderWithRewriting

  }


  // Similar to BasicB but now using non-static methods
  @Test
  public void basic3() throws Exception {
    binLoader = new TestClassloaderWithRewriting();
    String t = "simple.BasicC";
    TypeRegistry r = getTypeRegistry(t);
    ReloadableType rtype = r.addType(t, loadBytesForClass(t));
    result = runUnguarded(rtype.getClazz(), "run");
    assertEquals("hello", result.returnValue);

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Examples of org.springsource.loaded.test.infra.TestClassloaderWithRewriting

  // Now calling between two different types to check if we have
  // to clear more than 'our' state on a reload. In this scenario
  // the method being called is static
  @Test
  public void basic4() throws Exception {
    binLoader = new TestClassloaderWithRewriting();
    String t = "simple.BasicD";
    String target = "simple.BasicDTarget";
    TypeRegistry r = getTypeRegistry(t + "," + target);
    ReloadableType rtype = r.addType(t, loadBytesForClass(t));
    ReloadableType rtypeTarget = r.addType(target, loadBytesForClass(target));

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Examples of org.springsource.loaded.test.infra.TestClassloaderWithRewriting

  }


  // Calling from one type to another, now the methods are non-static
  @Test
  public void basic5() throws Exception {
    binLoader = new TestClassloaderWithRewriting();
    String t = "simple.BasicE";
    String target = "simple.BasicETarget";


    TypeRegistry r = getTypeRegistry(t + "," + target);

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