Examples with TargetLoader org.jacoco.core.test.TargetLoader used on opensource projects

Example 11 with TargetLoader

use of org.jacoco.core.test.TargetLoader in project jacoco by jacoco.

the class RuntimeDataTest method testGenerateArgumentArray.

@Test
public void testGenerateArgumentArray() throws Exception {
    final ClassWriter writer = new ClassWriter(0);
    writer.visit(Opcodes.V1_5, Opcodes.ACC_PUBLIC, "Sample", null, "java/lang/Object", new String[] { Type.getInternalName(Callable.class) });
    // Constructor
    MethodVisitor mv = writer.visitMethod(Opcodes.ACC_PUBLIC, "<init>", "()V", null, new String[0]);
    mv.visitCode();
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false);
    mv.visitInsn(Opcodes.RETURN);
    mv.visitMaxs(1, 1);
    mv.visitEnd();
    // call()
    mv = writer.visitMethod(Opcodes.ACC_PUBLIC, "call", "()Ljava/lang/Object;", null, new String[0]);
    mv.visitCode();
    RuntimeData.generateArgumentArray(1000, "Sample", 15, mv);
    mv.visitInsn(Opcodes.ARETURN);
    mv.visitMaxs(5, 1);
    mv.visitEnd();
    writer.visitEnd();
    final TargetLoader loader = new TargetLoader();
    Callable<?> callable = (Callable<?>) loader.add("Sample", writer.toByteArray()).newInstance();
    final Object[] args = (Object[]) callable.call();
    assertEquals(3, args.length, 0.0);
    assertEquals(Long.valueOf(1000), args[0]);
    assertEquals("Sample", args[1]);
    assertEquals(Integer.valueOf(15), args[2]);
}

Example 12 with TargetLoader

use of org.jacoco.core.test.TargetLoader in project jacoco by jacoco.

the class RuntimeDataTest method testGenerateAccessCall.

@Test
public void testGenerateAccessCall() throws Exception {
    final boolean[] probes = data.getExecutionData(Long.valueOf(1234), "Sample", 5).getProbes();
    final ClassWriter writer = new ClassWriter(0);
    writer.visit(Opcodes.V1_5, Opcodes.ACC_PUBLIC, "Sample", null, "java/lang/Object", new String[] { Type.getInternalName(Callable.class) });
    // Constructor
    MethodVisitor mv = writer.visitMethod(Opcodes.ACC_PUBLIC, "<init>", "(Ljava/lang/Object;)V", null, new String[0]);
    mv.visitCode();
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false);
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitVarInsn(Opcodes.ALOAD, 1);
    mv.visitFieldInsn(Opcodes.PUTFIELD, "Sample", "access", "Ljava/lang/Object;");
    mv.visitInsn(Opcodes.RETURN);
    mv.visitMaxs(2, 2);
    mv.visitEnd();
    // call()
    mv = writer.visitMethod(Opcodes.ACC_PUBLIC, "call", "()Ljava/lang/Object;", null, new String[0]);
    mv.visitCode();
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitFieldInsn(Opcodes.GETFIELD, "Sample", "access", "Ljava/lang/Object;");
    RuntimeData.generateAccessCall(1234, "Sample", 5, mv);
    mv.visitInsn(Opcodes.ARETURN);
    mv.visitMaxs(6, 1);
    mv.visitEnd();
    writer.visitField(Opcodes.ACC_PRIVATE, "access", "Ljava/lang/Object;", null, null);
    writer.visitEnd();
    final TargetLoader loader = new TargetLoader();
    Callable<?> callable = (Callable<?>) loader.add("Sample", writer.toByteArray()).getConstructor(Object.class).newInstance(data);
    assertSame(probes, callable.call());
}

Example 13 with TargetLoader

use of org.jacoco.core.test.TargetLoader in project jacoco by jacoco.

the class ResizeInstructionsTest method should_not_require_computation_of_common_superclass.

/**
 * Test of ASM bug
 * <a href= "https://gitlab.ow2.org/asm/asm/issues/317630">#317630</a> that
 * caused {@code java.lang.ClassNotFoundException}.
 */
@Test
public void should_not_require_computation_of_common_superclass() throws Exception {
    final String className = "Example";
    final ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_FRAMES) {

        @Override
        protected String getCommonSuperClass(final String type1, final String type2) {
            computedCommonSuperClass |= className.equals(type1) || className.equals(type2);
            return "java/lang/Object";
        }
    };
    cw.visit(Opcodes.V1_5, Opcodes.ACC_PUBLIC, className, null, "java/lang/Object", null);
    final MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "m", "()V", null, null);
    mv.visitCode();
    addCauseOfResizeInstructions(mv);
    addCauseOfGetCommonSuperClass(mv);
    mv.visitMaxs(1, 1);
    mv.visitEnd();
    cw.visitEnd();
    final byte[] original = cw.toByteArray();
    assertTrue(computedCommonSuperClass);
    new TargetLoader().add(className, original);
    final byte[] instrumented = instrumenter.instrument(original, className);
    new TargetLoader().add(className, instrumented);
}

Example 14 with TargetLoader

use of org.jacoco.core.test.TargetLoader in project jacoco by jacoco.

the class ResizeInstructionsTest method should_not_loose_InnerClasses_attribute.

/**
 * Test of ASM bug
 * <a href="https://gitlab.ow2.org/asm/asm/issues/317792">#317792</a>.
 */
@Test
public void should_not_loose_InnerClasses_attribute() throws Exception {
    byte[] source = TargetLoader.getClassDataAsBytes(Inner.class);
    final ClassReader cr = InstrSupport.classReaderFor(source);
    final ClassWriter cw = new ClassWriter(0);
    cr.accept(new ClassVisitor(InstrSupport.ASM_API_VERSION, cw) {

        @Override
        public void visitEnd() {
            final MethodVisitor mv = cv.visitMethod(0, "m", "()V", null, null);
            mv.visitCode();
            addCauseOfResizeInstructions(mv);
            mv.visitInsn(Opcodes.NOP);
            mv.visitMaxs(2, 1);
            mv.visitEnd();
            super.visitEnd();
        }
    }, 0);
    source = cw.toByteArray();
    final byte[] bytes = instrumenter.instrument(source, "");
    final TargetLoader targetLoader = new TargetLoader();
    final Class<?> outer = targetLoader.add(ResizeInstructionsTest.class, TargetLoader.getClassDataAsBytes(ResizeInstructionsTest.class));
    final Class<?> inner = targetLoader.add(Inner.class, bytes);
    assertSame(outer, inner.getEnclosingClass());
    assertNotNull(inner.getEnclosingClass());
    assertSame(outer, inner.getDeclaringClass());
    assertNotNull(inner.getDeclaringClass());
}