Examples with Result org.springsource.loaded.test.infra.Result used on opensource projects

Example 31 with Result

use of org.springsource.loaded.test.infra.Result in project spring-loaded by spring-projects.

the class MethodInvokerRewriterTests method rewriteInvokeInterface5_paramsChanged.

/**
	 * A method is changed on an interface - parameter type change.
	 */
@Test
public void rewriteInvokeInterface5_paramsChanged() throws Exception {
    TypeRegistry typeRegistry = getTypeRegistry("tgt.SimpleIClass,tgt.SimpleI");
    ReloadableType intface = typeRegistry.addType("tgt.SimpleI", loadBytesForClass("tgt.SimpleI"));
    ReloadableType impl = typeRegistry.addType("tgt.SimpleIClass", loadBytesForClass("tgt.SimpleIClass"));
    byte[] callerbytes = loadBytesForClass("tgt.StaticICaller");
    byte[] rewrittenBytes = MethodInvokerRewriter.rewrite(typeRegistry, callerbytes);
    Class<?> callerClazz = loadit("tgt.StaticICaller", rewrittenBytes);
    Result result = runUnguarded(callerClazz, "run");
    assertEquals(123, result.returnValue);
    // new interface version has method removed
    intface.loadNewVersion("2", retrieveRename("tgt.SimpleI", "tgt.SimpleI005"));
    impl.loadNewVersion("2", retrieveRename("tgt.SimpleIClass", "tgt.SimpleIClass005", "tgt.SimpleI005:tgt.SimpleI"));
    callerbytes = loadBytesForClass("tgt.StaticICaller005");
    callerbytes = ClassRenamer.rename("tgt.StaticICaller005", callerbytes, "tgt.SimpleI005:tgt.SimpleI", "tgt.SimpleIClass005:tgt.SimpleIClass", "tgt.SimpleIClass005:tgt.SimpleIClass");
    rewrittenBytes = MethodInvokerRewriter.rewrite(typeRegistry, callerbytes);
    callerClazz = loadit("tgt.StaticICaller005", rewrittenBytes);
    result = runUnguarded(callerClazz, "run");
    assertEquals(72, result.returnValue);
}

Example 32 with Result

use of org.springsource.loaded.test.infra.Result in project spring-loaded by spring-projects.

the class MethodInvokerRewriterTests method rewriteInvokeStatic.

/**
	 * Rewrite of a simple INVOKESTATIC call.
	 */
@Test
public void rewriteInvokeStatic() throws Exception {
    TypeRegistry typeRegistry = getTypeRegistry("tgt.SimpleClass");
    ReloadableType r = typeRegistry.addType("tgt.SimpleClass", loadBytesForClass("tgt.SimpleClass"));
    byte[] callerbytes = loadBytesForClass("tgt.StaticCaller");
    // @formatter:off
    checkMethod(callerbytes, "run", " L0\n" + "    LDC 123\n" + "    INVOKESTATIC tgt/SimpleClass.toInt(Ljava/lang/String;)I\n" + "    IRETURN\n" + " L1\n");
    // @formatter:on
    byte[] rewrittenBytes = MethodInvokerRewriter.rewrite(typeRegistry, callerbytes);
    // @formatter:off
    checkMethod(rewrittenBytes, "run", " L0\n" + "    LDC 123\n" + "    LDC " + r.getId() + "\n" + "    LDC toInt(Ljava/lang/String;)I\n" + "    INVOKESTATIC org/springsource/loaded/TypeRegistry.istcheck(ILjava/lang/String;)Ljava/lang/Object;\n" + "    DUP\n" + "    IFNULL L1\n" + "    CHECKCAST tgt/SimpleClass__I\n" + "    ASTORE 1\n" + // it would remove from here:
    "    LDC 1\n" + // load 1
    "    ANEWARRAY java/lang/Object\n" + // new array of size 1
    "    DUP_X1\n" + // put it under the argument (it'll be under and on top)
    "    SWAP\n" + // put it under and under, arg on top
    "    LDC 0\n" + // load 0
    "    SWAP\n" + // swap 
    "    AASTORE\n" + // to here
    "    ALOAD 1\n" + // load the target
    "    SWAP\n" + // put the target at the bottom
    "    ACONST_NULL\n" + // load the instance (static call so null)
    "    LDC toInt(Ljava/lang/String;)I\n" + // load the name+descriptor
    "    INVOKEINTERFACE tgt/SimpleClass__I.__execute([Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/String;)Ljava/lang/Object;\n" + "    CHECKCAST java/lang/Integer\n" + "    INVOKEVIRTUAL java/lang/Integer.intValue()I\n" + "    GOTO L2\n" + " L1\n" + "    POP\n" + "    INVOKESTATIC tgt/SimpleClass.toInt(Ljava/lang/String;)I\n" + " L2\n" + "    IRETURN\n" + " L3\n");
    // @formatter:on
    Class<?> callerClazz = loadit("tgt.StaticCaller", rewrittenBytes);
    //		ClassPrinter.print(r.bytesLoaded);
    Result result = runUnguarded(callerClazz, "run");
    assertEquals(123, result.returnValue);
}

Example 33 with Result

use of org.springsource.loaded.test.infra.Result in project spring-loaded by spring-projects.

the class MethodInvokerRewriterTests method rewriteInvokeVirtual1.

// TODO review visibility runtime checking.  In this next test a static method is changed from public to private.  It does
// not currently trigger an error - whether we need to check kind of depends on if we support deployment of broken code.  A
// compiler could not create code like this, it can only happen when one end of a call has been deployed but the other end hasnt
//	/**
//	 * If the static method is made non-visible (private), here is what happens in the java case:
//	 * 
//	 * <pre>
//	 * Exception in thread "main" java.lang.IllegalAccessError: tried to access method B.foo()V from class A
//	 *         at A.main(A.java:3)
//	 * </pre>
//	 */
//	@Test
//	public void rewriteInvokeStatic7() throws Exception {
//		TypeRegistry typeRegistry = getTypeRegistry("tgt.SimpleClass");
//		ReloadableType callee = typeRegistry.addType("tgt.SimpleClass", loadBytesForClass("tgt.SimpleClass"));
//
//		byte[] callerbytes = loadBytesForClass("tgt.StaticCaller");
//		byte[] rewrittenBytes = MethodInvokerRewriter.rewrite(typeRegistry, callerbytes);
//		Class<?> callerClazz = loadit("tgt.StaticCaller", rewrittenBytes);
//
//		Result result = runUnguarded(callerClazz, "run");
//		assertEquals(123, result.returnValue);
//
//		// new version of SimpleClass where target static method has been made private
//		callee.loadNewVersion("7", retrieveRename("tgt.SimpleClass", "tgt.SimpleClass007"));
//
//		try {
//			ClassPrinter.print(rewrittenBytes);
//			result = runUnguarded(callerClazz, "run");
//			System.out.println(result.returnValue);
//  fail here because the visibility of the changed static method has not been policed
//			Assert.fail();
//		} catch (RuntimeException rt) {
//			rt.printStackTrace();
//			InvocationTargetException ite = (InvocationTargetException) rt.getCause();
//			Throwable t = ite.getCause();
//			IncompatibleClassChangeError icce = (IncompatibleClassChangeError) t;
//			assertEquals("Expected static method SimpleClass.toInt(Ljava/lang/String;)I", icce.getMessage());
//		}
//	}
/**
	 * The simplest thing - calling a method with no params and no return (keeps generated code short!)
	 */
@Test
public void rewriteInvokeVirtual1() throws Exception {
    TypeRegistry typeRegistry = getTypeRegistry("invokevirtual.B");
    ReloadableType b = loadType(typeRegistry, "invokevirtual.B");
    byte[] callerbytes = loadBytesForClass("invokevirtual.A");
    byte[] rewrittenBytes = MethodInvokerRewriter.rewrite(typeRegistry, callerbytes);
    Class<?> callerClazz = loadit("invokevirtual.A", rewrittenBytes);
    Result result = runUnguarded(callerClazz, "run");
    Assert.assertNull(result.returnValue);
    callerbytes = loadBytesForClass("invokevirtual.A2");
    callerbytes = ClassRenamer.rename("invokevirtual.A2", callerbytes, "invokevirtual.B2:invokevirtual.B");
    rewrittenBytes = MethodInvokerRewriter.rewrite(typeRegistry, callerbytes);
    Class<?> callerClazz002 = loadit("invokevirtual.A2", rewrittenBytes);
    b.loadNewVersion("2", retrieveRename("invokevirtual.B", "invokevirtual.B2"));
    result = runUnguarded(callerClazz002, "run");
    Assert.assertNull(result.returnValue);
}

Example 34 with Result

use of org.springsource.loaded.test.infra.Result in project spring-loaded by spring-projects.

the class MethodInvokerRewriterTests method rewriteInvokeStatic3.

/**
	 * Reloading target with a new static method that takes no parameters.
	 */
@Test
public void rewriteInvokeStatic3() throws Exception {
    TypeRegistry typeRegistry = getTypeRegistry("tgt.SimpleClass");
    ReloadableType callee = typeRegistry.addType("tgt.SimpleClass", loadBytesForClass("tgt.SimpleClass"));
    byte[] callerbytes = loadBytesForClass("tgt.StaticCaller");
    byte[] rewrittenBytes = MethodInvokerRewriter.rewrite(typeRegistry, callerbytes);
    Class<?> callerClazz = loadit("tgt.StaticCaller", rewrittenBytes);
    // run the original
    Result result = runUnguarded(callerClazz, "run");
    assertEquals(123, result.returnValue);
    callerbytes = loadBytesForClass("tgt.StaticCaller003");
    callerbytes = ClassRenamer.rename("tgt.StaticCaller003", callerbytes, "tgt.SimpleClass003:tgt.SimpleClass");
    rewrittenBytes = MethodInvokerRewriter.rewrite(typeRegistry, callerbytes);
    Class<?> callerClazz002 = loadit("tgt.StaticCaller003", rewrittenBytes);
    callee.loadNewVersion("3", retrieveRename("tgt.SimpleClass", "tgt.SimpleClass003"));
    result = runUnguarded(callerClazz002, "run3");
    assertEquals("42", result.returnValue);
}

Example 35 with Result

use of org.springsource.loaded.test.infra.Result in project spring-loaded by spring-projects.

the class MethodInvokerRewriterTests method callingMethodIntroducedLaterReturningPrimitiveBoolean.

@Test
public void callingMethodIntroducedLaterReturningPrimitiveBoolean() throws Exception {
    TypeRegistry typeRegistry = TypeRegistry.getTypeRegistryFor(binLoader);
    // Configure it directly such that data.Apple is considered reloadable
    configureForTesting(typeRegistry, "data.Apple");
    ReloadableType apple = typeRegistry.addType("data.Apple", loadBytesForClass("data.Apple"));
    byte[] callerbytes = loadBytesForClass("data.Orange002");
    callerbytes = ClassRenamer.rename("data.Orange", callerbytes, "data.Apple002:data.Apple");
    byte[] rewrittenBytes = MethodInvokerRewriter.rewrite(typeRegistry, callerbytes);
    Class<?> callerClazz = loadit("data.Orange", rewrittenBytes);
    runExpectNoSuchMethodException(callerClazz, "callAppleRetBoolean", new Object[] { true });
    // Load a version of Apple that does define that method
    apple.loadNewVersion("002", retrieveRename("data.Apple", "data.Apple002"));
    Result result = runUnguarded(callerClazz, "callAppleRetBoolean", new Object[] { true });
    assertEquals(false, result.returnValue);
}