How to use invoke method of org.evomaster.client.java.instrumentation.coverage.methodreplacement.classes.MethodClassReplacement class

Best EvoMaster code snippet using org.evomaster.client.java.instrumentation.coverage.methodreplacement.classes.MethodClassReplacement.invoke

Source:MethodClassReplacement.java

...16    public Class<?> getTargetClass() {17        return Method.class;18    }19    @Replacement(type = ReplacementType.TRACKER, category = ReplacementCategory.EXT_0)20    public static Object invoke(Method caller, Object obj, Object... args) throws InvocationTargetException, IllegalAccessException {21        /*22            This is tricky... what if reflection is done on a method for which we have a replacement?23            This actually happens for example in24            org.apache.tomcat.jdbc.pool.StatementFacade$StatementProxy25         */26        if(caller==null){27            //sure NPE28            return caller.invoke(obj, args);29        }30        /*31            unfortunately, invoke() is  @CallerSensitive :(32            so, we cannot guarantee to preserve the semantic, and must set it33            accessible34            TODO in theory it should not have any impact whatsoever, but you never know...35         */36        caller.setAccessible(true);37        String targetClassName = caller.getDeclaringClass().getName();38        if(toSkipCache.contains(targetClassName)){39            return caller.invoke(obj, args);40        }41        List<MethodReplacementClass> candidateClasses = ReplacementList.getReplacements(targetClassName);42        if(candidateClasses.isEmpty()){43            toSkipCache.add(targetClassName);44            return caller.invoke(obj, args);45        }46        /*47            Problem here is that isInSut is not available... we would need explicitly pass down as input48            to the function (and we would need to push such boolean on the stack)...49            plus there is the issue with the handling of new target templates...50            But, even if we do not want to deal with them, we still want to do taint analysis...51            TODO fix these issues, but likely they are very, very rare52         */53        String name = caller.getName();54        String desc = ReplacementUtils.getDescriptor(caller, 0, 0);55        boolean isInSUT = false; //FIXME56        Optional<Method> r = ReplacementUtils.chooseMethodFromCandidateReplacement(57                isInSUT, name, desc, candidateClasses, false);58        if(! r.isPresent()){59            return caller.invoke(obj, args);60        }61        Method replacement = r.get();62        Replacement br = replacement.getAnnotation(Replacement.class);63        List<Object> tmp = new LinkedList<>();64        if(args != null) {65            tmp.addAll(Arrays.asList(args));66        }67        if(!br.replacingStatic()){68            tmp.add(0, obj);69        }70        if(br.type() != ReplacementType.TRACKER){71            tmp.add(null); // null template at the end72        }73        return replacement.invoke(null, tmp.toArray());74        /*75         //SEE discussion above on why this code cannot be used :(76        if(! br.isPure()){77            // we can call it only once... and so cannot use the original :(78            // in theory, this break semantics if there were some access control79            return replacement.invoke(null, tmp.toArray());80        }81        try {82            replacement.invoke(null, tmp.toArray());83        } catch (Exception e){84            SimpleLogger.warn("Failed reflection call in replacement", e);85        }86        // still going to call the original, needed to deal with not breaking semantics (eg access rules on87        // reflection should still be applied)88        return caller.invoke(obj, args);89         */90    }91}...

invoke

Using AI Code Generation

1public class MethodClassReplacement {2    public static void methodReplaced(String className, String methodName, String methodDesc, Object[] methodParams, Object returnValue) {3        invoke(className, methodName, methodDesc, methodParams, returnValue);4    }5}6String className = method.getDeclaringClass().getName();7String methodName = method.getName();8String methodDesc = Type.getMethodDescriptor(method);9Object[] methodParams = getMethodParams(method, args);10Object returnValue = getReturnValue(method, result);11MethodClassReplacement.methodReplaced(className, methodName, methodDesc, methodParams, returnValue);12return result;13catch (Throwable e) {14    throw e;15}

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.