Best Powermock code snippet using org.powermock.reflect.internal.WhiteboxImpl.concatenateStrings
Source:WhiteboxImpl.java  
...1322		}1323		final Method[] methodArray = methodsToMock.toArray(new Method[0]);1324		if (methodArray.length == 0) {1325			throw new MethodNotFoundException(String.format("No methods matching the name(s) %s were found in the class hierarchy of %s.",1326					concatenateStrings(methodNames), getType(clazz)));1327		}1328		return methodArray;1329	}1330	/**1331	 * Get an array of {@link Field}'s that matches the supplied list of field1332	 * names. Both instance and static fields are taken into account.1333	 * 1334	 * @param clazz1335	 *            The class that should contain the fields.1336	 * @param fieldNames1337	 *            Names of the fields that will be returned.1338	 * @return An array of Field's. May be of length 0 but not <code>null</code>1339	 *         .1340	 */1341	public static Field[] getFields(Class<?> clazz, String... fieldNames) {1342		final List<Field> fields = new LinkedList<Field>();1343		for (Field field : getAllFields(clazz)) {1344			for (String fieldName : fieldNames) {1345				if (field.getName().equals(fieldName)) {1346					fields.add(field);1347				}1348			}1349		}1350		final Field[] fieldArray = fields.toArray(new Field[fields.size()]);1351		if (fieldArray.length == 0) {1352			throw new FieldNotFoundException(String.format("No fields matching the name(s) %s were found in the class hierarchy of %s.",1353					concatenateStrings(fieldNames), getType(clazz)));1354		}1355		return fieldArray;1356	}1357	@SuppressWarnings("unchecked")1358	public static <T> T performMethodInvocation(Object tested, Method methodToInvoke, Object... arguments) throws Exception {1359		final boolean accessible = methodToInvoke.isAccessible();1360		if (!accessible) {1361			methodToInvoke.setAccessible(true);1362		}1363		try {1364			if (isPotentialVarArgsMethod(methodToInvoke, arguments)) {1365				Class<?>[] parameterTypes = methodToInvoke.getParameterTypes();1366				final int varArgsIndex = parameterTypes.length - 1;1367				Class<?> varArgsType = parameterTypes[varArgsIndex].getComponentType();1368				Object varArgsArrayInstance = createAndPopulateVarArgsArray(varArgsType, varArgsIndex, arguments);1369				Object[] completeArgumentList = new Object[parameterTypes.length];1370				for (int i = 0; i < varArgsIndex; i++) {1371					completeArgumentList[i] = arguments[i];1372				}1373				completeArgumentList[completeArgumentList.length - 1] = varArgsArrayInstance;1374				return (T) methodToInvoke.invoke(tested, completeArgumentList);1375			} else {1376				return (T) methodToInvoke.invoke(tested, arguments == null ? new Object[] { arguments } : arguments);1377			}1378		} catch (InvocationTargetException e) {1379			Throwable cause = e.getCause();1380			if (cause instanceof Exception) {1381				throw (Exception) cause;1382			} else if (cause instanceof Error) {1383				throw (Error) cause;1384			} else {1385				throw new MethodInvocationException(cause);1386			}1387		} finally {1388			if (!accessible) {1389				methodToInvoke.setAccessible(false);1390			}1391		}1392	}1393	public static <T> Method[] getAllMethodExcept(Class<T> type, String... methodNames) {1394		List<Method> methodsToMock = new LinkedList<Method>();1395		Method[] methods = getAllMethods(type);1396		iterateMethods: for (Method method : methods) {1397			for (String methodName : methodNames) {1398				if (method.getName().equals(methodName)) {1399					continue iterateMethods;1400				}1401			}1402			methodsToMock.add(method);1403		}1404		return methodsToMock.toArray(new Method[0]);1405	}1406	public static <T> Method[] getAllMetodsExcept(Class<T> type, String methodNameToExclude, Class<?>[] argumentTypes) {1407		Method[] methods = getAllMethods(type);1408		List<Method> methodList = new ArrayList<Method>();1409		outer: for (Method method : methods) {1410			if (method.getName().equals(methodNameToExclude)) {1411				if (argumentTypes != null && argumentTypes.length > 0) {1412					final Class<?>[] args = method.getParameterTypes();1413					if (args != null && args.length == argumentTypes.length) {1414						for (int i = 0; i < args.length; i++) {1415							if (args[i].isAssignableFrom(getUnmockedType(argumentTypes[i]))) {1416								/*1417								 * Method was not found thus it should not be1418								 * mocked. Continue to investigate the next1419								 * method.1420								 */1421								continue outer;1422							}1423						}1424					}1425				} else {1426					continue;1427				}1428			}1429			methodList.add(method);1430		}1431		return methodList.toArray(new Method[0]);1432	}1433	public static boolean areAllMethodsStatic(Method... methods) {1434		for (Method method : methods) {1435			if (!Modifier.isStatic(method.getModifiers())) {1436				return false;1437			}1438		}1439		return true;1440	}1441	/**1442	 * Check if all arguments are of the same type.1443	 */1444	static boolean areAllArgumentsOfSameType(Object[] arguments) {1445		if (arguments == null || arguments.length <= 1) {1446			return true;1447		}1448		// Handle null values1449		int index = 0;1450		Object object = null;1451		while (object == null && index < arguments.length) {1452			object = arguments[index++];1453		}1454		if (object == null) {1455			return true;1456		}1457		// End of handling null values1458		final Class<?> firstArgumentType = getType(object);1459		for (int i = index; i < arguments.length; i++) {1460			final Object argument = arguments[i];1461			if (argument != null && !getType(argument).isAssignableFrom(firstArgumentType)) {1462				return false;1463			}1464		}1465		return true;1466	}1467	/**1468	 * @return <code>true</code> if all actual parameter types are assignable1469	 *         from the expected arguments, <code>false</code> otherwise.1470	 */1471	private static boolean checkIfTypesAreSame(Class<?>[] parameterTypes, Object[] arguments) {1472		if (parameterTypes == null) {1473			throw new IllegalArgumentException("parameter types cannot be null");1474		} else if (parameterTypes.length != arguments.length) {1475			return false;1476		}1477		for (int i = 0; i < parameterTypes.length; i++) {1478			Object argument = arguments[i];1479			if (argument == null) {1480				continue;1481			} else {1482				if (!parameterTypes[i].isAssignableFrom(getType(argument)) && !(parameterTypes[i].equals(Class.class) && isClass(argument))) {1483					return false;1484				}1485			}1486		}1487		return true;1488	}1489	/**1490	 * @return The type of the of an object.1491	 */1492	public static Class<?> getType(Object object) {1493		Class<?> type = null;1494		if (isClass(object)) {1495			type = (Class<?>) object;1496		} else if (object != null) {1497			type = object.getClass();1498		}1499		return getUnmockedType(type);1500	}1501	/**1502	 * Get an inner class type1503	 * 1504	 * @param declaringClass1505	 *            The class in which the inner class is declared.1506	 * @param name1507	 *            The unqualified name (simple name) of the inner class.1508	 * @return The type.1509	 */1510	@SuppressWarnings("unchecked")1511	public static Class<Object> getInnerClassType(Class<?> declaringClass, String name) throws ClassNotFoundException {1512		return (Class<Object>) Class.forName(declaringClass.getName() + "$" + name);1513	}1514	/**1515	 * Get the type of a local inner class.1516	 * 1517	 * @param declaringClass1518	 *            The class in which the local inner class is declared.1519	 * @param occurrence1520	 *            The occurrence of the local class. For example if you have two1521	 *            local classes in the <code>declaringClass</code> you must pass1522	 *            in <code>1</code> if you want to get the type for the first1523	 *            one or <code>2</code> if you want the second one.1524	 * @param name1525	 *            The unqualified name (simple name) of the local class.1526	 * @return The type.1527	 */1528	@SuppressWarnings("unchecked")1529	public static Class<Object> getLocalClassType(Class<?> declaringClass, int occurrence, String name) throws ClassNotFoundException {1530		return (Class<Object>) Class.forName(declaringClass.getName() + "$" + occurrence + name);1531	}1532	/**1533	 * Get the type of an anonymous inner class.1534	 * 1535	 * @param declaringClass1536	 *            The class in which the anonymous inner class is declared.1537	 * @param occurrence1538	 *            The occurrence of the anonymous inner class. For example if1539	 *            you have two anonymous inner classes classes in the1540	 *            <code>declaringClass</code> you must pass in <code>1</code> if1541	 *            you want to get the type for the first one or <code>2</code>1542	 *            if you want the second one.1543	 * @return The type.1544	 */1545	@SuppressWarnings("unchecked")1546	public static Class<Object> getAnonymousInnerClassType(Class<?> declaringClass, int occurrence) throws ClassNotFoundException {1547		return (Class<Object>) Class.forName(declaringClass.getName() + "$" + occurrence);1548	}1549	/**1550	 * Get all fields annotated with a particular annotation. This method1551	 * traverses the class hierarchy when checking for the annotation.1552	 * 1553	 * @param object1554	 *            The object to look for annotations. Note that if're you're1555	 *            passing an object only instance fields are checked, passing a1556	 *            class will only check static fields.1557	 * @param annotation1558	 *            The annotation type to look for.1559	 * @param additionalAnnotations1560	 *            Optionally more annotations to look for. If any of the1561	 *            annotations are associated with a particular field it will be1562	 *            added to the resulting <code>Set</code>.1563	 * @return A set of all fields containing the particular annotation.1564	 */1565	@SuppressWarnings("unchecked")1566	public static Set<Field> getFieldsAnnotatedWith(Object object, Class<? extends Annotation> annotation,1567			Class<? extends Annotation>... additionalAnnotations) {1568		Class<? extends Annotation>[] annotations = null;1569		if (additionalAnnotations == null || additionalAnnotations.length == 0) {1570			annotations = (Class<? extends Annotation>[]) new Class<?>[] { annotation };1571		} else {1572			annotations = (Class<? extends Annotation>[]) new Class<?>[additionalAnnotations.length + 1];1573			annotations[0] = annotation;1574			System.arraycopy(additionalAnnotations, 0, annotations, 1, additionalAnnotations.length);1575		}1576		return getFieldsAnnotatedWith(object, annotations);1577	}1578	/**1579	 * Get all fields annotated with a particular annotation. This method1580	 * traverses the class hierarchy when checking for the annotation.1581	 * 1582	 * @param object1583	 *            The object to look for annotations. Note that if're you're1584	 *            passing an object only instance fields are checked, passing a1585	 *            class will only check static fields.1586	 * @param annotationTypes1587	 *            The annotation types to look for1588	 * @return A set of all fields containing the particular annotation(s).1589	 * @since 1.31590	 */1591	public static Set<Field> getFieldsAnnotatedWith(Object object, Class<? extends Annotation>[] annotationTypes) {1592		return findAllFieldsUsingStrategy(new FieldAnnotationMatcherStrategy(annotationTypes), object, true, getType(object));1593	}1594	/**1595	 * Get all fields assignable from a particular type. This method traverses1596	 * the class hierarchy when checking for the type.1597	 * 1598	 * @param object1599	 *            The object to look for type. Note that if're you're passing an1600	 *            object only instance fields are checked, passing a class will1601	 *            only check static fields.1602	 * @param type1603	 *            The type to look for.1604	 * @return A set of all fields of the particular type.1605	 */1606	public static Set<Field> getFieldsOfType(Object object, Class<?> type) {1607		return findAllFieldsUsingStrategy(new AssignableFromFieldTypeMatcherStrategy(type), object, true, getType(object));1608	}1609	/**1610	 * Get all instance fields for a particular object. It returns all fields1611	 * regardless of the field modifier and regardless of where in the class1612	 * hierarchy a field is located.1613	 * 1614	 * @param object1615	 *            The object whose instance fields to get.1616	 * @return All instance fields in the hierarchy. All fields are set to1617	 *         accessible1618	 */1619	public static Set<Field> getAllInstanceFields(Object object) {1620		return findAllFieldsUsingStrategy(new AllFieldsMatcherStrategy(), object, true, getType(object));1621	}1622	/**1623	 * Get all static fields for a particular type.1624	 * 1625	 * @param type1626	 *            The class whose static fields to get.1627	 * @return All static fields in <code>type</code>. All fields are set to1628	 *         accessible.1629	 */1630	public static Set<Field> getAllStaticFields(Class<?> type) {1631		final Set<Field> fields = new LinkedHashSet<Field>();1632		final Field[] declaredFields = type.getDeclaredFields();1633		for (Field field : declaredFields) {1634			if (Modifier.isStatic(field.getModifiers())) {1635				field.setAccessible(true);1636				fields.add(field);1637			}1638		}1639		return fields;1640	}1641	public static boolean isClass(Object argument) {1642		return argument instanceof Class<?>;1643	}1644	/**1645	 * @return <code>true</code> if all actual parameter types are assignable1646	 *         from the expected parameter types, <code>false</code> otherwise.1647	 */1648	private static boolean checkIfTypesAreSame(Class<?>[] expectedParameterTypes, Class<?>[] actualParameterTypes) {1649		if (expectedParameterTypes == null || actualParameterTypes == null) {1650			throw new IllegalArgumentException("parameter types cannot be null");1651		} else if (expectedParameterTypes.length != actualParameterTypes.length) {1652			return false;1653		} else {1654			for (int i = 0; i < expectedParameterTypes.length; i++) {1655				if (!expectedParameterTypes[i].isAssignableFrom(getType(actualParameterTypes[i]))) {1656					return false;1657				}1658			}1659		}1660		return true;1661	}1662	private static Field getField(String fieldName, Class<?> where) {1663		if (where == null) {1664			throw new IllegalArgumentException("where cannot be null");1665		}1666		Field field = null;1667		try {1668			field = where.getDeclaredField(fieldName);1669			field.setAccessible(true);1670		} catch (NoSuchFieldException e) {1671			throw new FieldNotFoundException("Field '" + fieldName + "' was not found in class " + where.getName() + ".");1672		}1673		return field;1674	}1675	private static Field findFieldOrThrowException(Class<?> fieldType, Class<?> where) {1676		if (fieldType == null || where == null) {1677			throw new IllegalArgumentException("fieldType and where cannot be null");1678		}1679		Field field = null;1680		for (Field currentField : where.getDeclaredFields()) {1681			currentField.setAccessible(true);1682			if (currentField.getType().equals(fieldType)) {1683				field = currentField;1684				break;1685			}1686		}1687		if (field == null) {1688			throw new FieldNotFoundException("Cannot find a field of type " + fieldType + "in where.");1689		}1690		return field;1691	}1692	private static void setField(Object object, Object value, Field foundField) {1693		foundField.setAccessible(true);1694		try {1695			foundField.set(object, value);1696		} catch (IllegalAccessException e) {1697			throw new RuntimeException("Internal error: Failed to set field in method setInternalState.", e);1698		}1699	}1700	private static String concatenateStrings(String... stringsToConcatenate) {1701		StringBuilder builder = new StringBuilder();1702		final int stringsLength = stringsToConcatenate.length;1703		for (int i = 0; i < stringsLength; i++) {1704			if (i == stringsLength - 1 && stringsLength != 1) {1705				builder.append(" or ");1706			} else if (i != 0) {1707				builder.append(", ");1708			}1709			builder.append(stringsToConcatenate[i]);1710		}1711		return builder.toString();1712	}1713	private static boolean isPotentialVarArgsMethod(Method method, Object[] arguments) {1714		return doesParameterTypesMatchForVarArgsInvocation(method.isVarArgs(), method.getParameterTypes(), arguments);...concatenateStrings
Using AI Code Generation
1public class WhiteboxImplTest {2    public void testConcatenateStrings() {3        String s1 = "Hello";4        String s2 = "World";5        String s3 = "!";6        String s4 = "!";7        String s5 = "!";8        String s6 = "!";9        String s7 = "!";10        String s8 = "!";11        String s9 = "!";12        String s10 = "!";13        String s11 = "!";14        String s12 = "!";15        String s13 = "!";16        String s14 = "!";17        String s15 = "!";18        String s16 = "!";19        String s17 = "!";20        String s18 = "!";21        String s19 = "!";22        String s20 = "!";23        String s21 = "!";24        String s22 = "!";25        String s23 = "!";26        String s24 = "!";27        String s25 = "!";28        String s26 = "!";29        String s27 = "!";30        String s28 = "!";31        String s29 = "!";32        String s30 = "!";33        String s31 = "!";34        String s32 = "!";35        String s33 = "!";36        String s34 = "!";37        String s35 = "!";38        String s36 = "!";39        String s37 = "!";40        String s38 = "!";41        String s39 = "!";42        String s40 = "!";43        String s41 = "!";44        String s42 = "!";45        String s43 = "!";46        String s44 = "!";47        String s45 = "!";48        String s46 = "!";49        String s47 = "!";50        String s48 = "!";51        String s49 = "!";52        String s50 = "!";53        String s51 = "!";54        String s52 = "!";55        String s53 = "!";56        String s54 = "!";57        String s55 = "!";58        String s56 = "!";59        String s57 = "!";60        String s58 = "!";61        String s59 = "!";62        String s60 = "!";63        String s61 = "!";64        String s62 = "!";65        String s63 = "!";66        String s64 = "!";67        String s65 = "!";68        String s66 = "!";69        String s67 = "!";70        String s68 = "!";concatenateStrings
Using AI Code Generation
1WhiteboxImpl.whiteboxImpl = new WhiteboxImpl();2String[] strings = new String[]{"a", "b", "c"};3String concatenated = WhiteboxImpl.whiteboxImpl.concatenateStrings(strings);4WhiteboxImpl whiteboxImpl = new WhiteboxImpl();5String[] strings = new String[]{"a", "b", "c"};6String concatenated = whiteboxImpl.concatenateStrings(strings);7String[] strings = new String[]{"a", "b", "c"};8WhiteboxImpl whiteboxImpl = Whitebox.getInternalState(WhiteboxImpl.class, "whiteboxImpl");9String concatenated = whiteboxImpl.concatenateStrings(strings);concatenateStrings
Using AI Code Generation
1import org.powermock.reflect.internal.WhiteboxImpl;2import org.powermock.reflect.Whitebox;3String[] strings = {"hello", "world"};4String result = WhiteboxImpl.concatenateStrings(strings);5System.out.println(result);6String[] strings1 = {"hello", "world", null, null};7String result1 = WhiteboxImpl.concatenateStrings(strings1);8System.out.println(result1);9String[] strings2 = null;10String result2 = WhiteboxImpl.concatenateStrings(strings2);11System.out.println(result2);12String[] strings3 = {};13String result3 = WhiteboxImpl.concatenateStrings(strings3);14System.out.println(result3);15String[] strings4 = {null, null};16String result4 = WhiteboxImpl.concatenateStrings(strings4);17System.out.println(result4);18String[] strings5 = {null, null, null};19String result5 = WhiteboxImpl.concatenateStrings(strings5);20System.out.println(result5);21String[] strings6 = {"hello", null, null, "world"};22String result6 = WhiteboxImpl.concatenateStrings(strings6);23System.out.println(result6);24String[] strings7 = {"hello", null, null, "world", null};25String result7 = WhiteboxImpl.concatenateStrings(strings7);26System.out.println(result7);27String[] strings8 = {"hello", "world", null, null, "hello", "world"};28String result8 = WhiteboxImpl.concatenateStrings(strings8);29System.out.println(result8);30String[] strings9 = {"hello", "world", null, null, "hello", "world", null, null, null};31String result9 = WhiteboxImpl.concatenateStrings(strings9);32System.out.println(result9);33String[] strings10 = {"hello", "world", null, null, "hello", "world", null, null, null, null};concatenateStrings
Using AI Code Generation
1String result = WhiteboxImpl.invokeMethod(WhiteboxImpl.class, "concatenateStrings", "Hello", "World");2String field = WhiteboxImpl.getInternalState(WhiteboxImpl.class, "HELLO_WORLD");3WhiteboxImpl.setInternalState(WhiteboxImpl.class, "HELLO_WORLD", "Hello World");4WhiteboxImpl whitebox = WhiteboxImpl.getConstructor(WhiteboxImpl.class).newInstance();5WhiteboxImpl whitebox = WhiteboxImpl.getConstructor(WhiteboxImpl.class, String.class, String.class).newInstance("Hello", "World");6String result = WhiteboxImpl.invokeMethod(WhiteboxImpl.class, "concatenateStrings", whitebox, "Hello", "World");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.
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