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How to use doExpectNew method of org.powermock.api.easymock.PowerMock class

Best Powermock code snippet using org.powermock.api.easymock.PowerMock.doExpectNew

Source:PowerMock.java

...1703     * {@link #expectNew(Class, Object...)} instead.1704     */1705    public static synchronized <T> IExpectationSetters<T> expectNew(Class<T> type, Class<?>[] parameterTypes,1706                                                                    Object... arguments) throws Exception {1707        return doExpectNew(type, new DefaultMockStrategy(), parameterTypes, arguments);1708    }1709    @SuppressWarnings("unchecked")1710    private static <T> IExpectationSetters<T> doExpectNew(Class<T> type, MockStrategy mockStrategy,1711                                                          Class<?>[] parameterTypes, Object... arguments) throws Exception {1712        if (type == null) {1713            throw new IllegalArgumentException("type cannot be null");1714        } else if (mockStrategy == null) {1715            throw new IllegalArgumentException("Internal error: Mock strategy cannot be null");1716        }1717        final boolean isNiceMock = mockStrategy instanceof NiceMockStrategy;1718        final Class<T> unmockedType = (Class<T>) WhiteboxImpl.getUnmockedType(type);1719        if (!isNiceMock) {1720            if (parameterTypes == null) {1721                WhiteboxImpl.findUniqueConstructorOrThrowException(type, arguments);1722            } else {1723                WhiteboxImpl.getConstructor(unmockedType, parameterTypes);1724            }1725        }1726        /*1727           * Check if this type has been mocked before1728           */1729        NewInvocationControl<IExpectationSetters<T>> newInvocationControl = (NewInvocationControl<IExpectationSetters<T>>) MockRepository1730                .getNewInstanceControl(unmockedType);1731        if (newInvocationControl == null) {1732            InvocationSubstitute<T> mock = doMock(InvocationSubstitute.class, false, mockStrategy, null,1733                    (Method[]) null);1734            newInvocationControl = new NewInvocationControlImpl<T>(mock, type);1735            MockRepository.putNewInstanceControl(type, newInvocationControl);1736            MockRepository.addObjectsToAutomaticallyReplayAndVerify(WhiteboxImpl.getUnmockedType(type));1737        }1738        if (isNiceMock && (arguments == null || arguments.length == 0)) {1739            return null;1740        }1741        return newInvocationControl.expectSubstitutionLogic(arguments);1742    }1743    /**1744     * Allows specifying expectations on new invocations. For example you might1745     * want to throw an exception or return a mock. Note that you must replay1746     * the class when using this method since this behavior is part of the class1747     * mock.1748     */1749    public static synchronized <T> IExpectationSetters<T> expectNew(Class<T> type, Object... arguments)1750            throws Exception {1751        return doExpectNew(type, new DefaultMockStrategy(), null, arguments);1752    }1753    /**1754     * Allows specifying expectations on new invocations for private member1755     * (inner) classes, local or anonymous classes. For example you might want1756     * to throw an exception or return a mock. Note that you must replay the1757     * class when using this method since this behavior is part of the class1758     * mock.1759     *1760     * @param fullyQualifiedName1761     *            The fully-qualified name of the inner/local/anonymous type to1762     *            expect.1763     * @param arguments1764     *            Optional number of arguments.1765     */1766    @SuppressWarnings("unchecked")1767    public static synchronized <T> IExpectationSetters<T> expectNew(String fullyQualifiedName, Object... arguments)1768            throws Exception {1769        final Class<?> forName = Class.forName(fullyQualifiedName);1770        return (IExpectationSetters<T>) doExpectNew(forName, new DefaultMockStrategy(), null, arguments);1771    }1772    /**1773     * Allows specifying expectations on new invocations. For example you might1774     * want to throw an exception or return a mock.1775     * <p>1776     * This method checks the order of constructor invocations.1777     * <p>1778     * Note that you must replay the class when using this method since this1779     * behavior is part of the class mock.1780     */1781    public static synchronized <T> IExpectationSetters<T> expectStrictNew(Class<T> type, Object... arguments)1782            throws Exception {1783        return doExpectNew(type, new StrictMockStrategy(), null, arguments);1784    }1785    /**1786     * Allows specifying expectations on new invocations. For example you might1787     * want to throw an exception or return a mock. Note that you must replay1788     * the class when using this method since this behavior is part of the class1789     * mock.1790     * <p>1791     * This method checks the order of constructor invocations.1792     * <p>1793     * Use this method when you need to specify parameter types for the1794     * constructor when PowerMock cannot determine which constructor to use1795     * automatically. In most cases you should use1796     * {@link #expectNew(Class, Object...)} instead.1797     */1798    public static synchronized <T> IExpectationSetters<T> expectStrictNew(Class<T> type, Class<?>[] parameterTypes,1799                                                                          Object... arguments) throws Exception {1800        return doExpectNew(type, new StrictMockStrategy(), parameterTypes, arguments);1801    }1802    /**1803     * Allows specifying expectations on new invocations. For example you might1804     * want to throw an exception or return a mock.1805     * <p>1806     * This method allows any number of calls to a new constructor without1807     * throwing an exception.1808     * <p>1809     * Note that you must replay the class when using this method since this1810     * behavior is part of the class mock.1811     */1812    public static synchronized <T> IExpectationSetters<T> expectNiceNew(Class<T> type, Object... arguments)1813            throws Exception {1814        return doExpectNew(type, new NiceMockStrategy(), null, arguments);1815    }1816    /**1817     * Allows specifying expectations on new invocations. For example you might1818     * want to throw an exception or return a mock. Note that you must replay1819     * the class when using this method since this behavior is part of the class1820     * mock.1821     * <p>1822     * This method allows any number of calls to a new constructor without1823     * throwing an exception.1824     * <p>1825     * Use this method when you need to specify parameter types for the1826     * constructor when PowerMock cannot determine which constructor to use1827     * automatically. In most cases you should use1828     * {@link #expectNew(Class, Object...)} instead.1829     */1830    public static synchronized <T> IExpectationSetters<T> expectNiceNew(Class<T> type, Class<?>[] parameterTypes,1831                                                                        Object... arguments) throws Exception {1832        return doExpectNew(type, new NiceMockStrategy(), parameterTypes, arguments);1833    }1834    /**1835     * Suppress constructor calls on specific constructors only.1836     *1837     * @deprecated Use {@link #suppress(Constructor[])} instead.1838     */1839    public static synchronized void suppressConstructor(Constructor<?>... constructors) {1840        SuppressCode.suppressConstructor(constructors);1841    }1842    /**1843     * This method can be used to suppress the code in a specific constructor.1844     *1845     * @param clazz1846     *            The class where the constructor is located....

doExpectNew

Using AI Code Generation

1doExpectNew(ClassName.class).withArguments(AnyType.class).andReturn(AnyType.class).anyTimes();2doExpectNew(ClassName.class).withArguments(AnyType.class).andReturn(AnyType.class).anyTimes();3doExpectNew(ClassName.class).withArguments(AnyType.class).andReturn(AnyType.class).anyTimes();4doExpectNew(ClassName.class).withArguments(AnyType.class).andReturn(AnyType.class).anyTimes();5doExpectNew(ClassName.class).withArguments(AnyType.class).andReturn(AnyType.class).anyTimes();6doExpectNew(ClassName.class).withArguments(AnyType.class).andReturn(AnyType.class).anyTimes();7doExpectNew(ClassName.class).withArguments(AnyType.class).andReturn(AnyType.class).anyTimes();8doExpectNew(ClassName.class).withArguments(AnyType.class).andReturn(AnyType.class).anyTimes();9doExpectNew(ClassName.class).withArguments(AnyType.class).andReturn(AnyType.class).anyTimes();10doExpectNew(ClassName.class).withArguments(AnyType.class).andReturn(AnyType.class).anyTimes();11doExpectNew(ClassName.class).withArguments(AnyType.class).andReturn(AnyType.class).anyTimes();

doExpectNew

Using AI Code Generation

1PowerMock.doExpectNew(ClassName.class, "methodName", new Class[]{}, new Object[]{})2.andReturn(new ClassName());3PowerMock.doAnswer(new IAnswer() {4    public Object answer() throws Throwable {5        return new ClassName();6    }7}).whenNew(ClassName.class).withNoArguments();8PowerMock.doReturn(new ClassName()).whenNew(ClassName.class).withNoArguments();9PowerMock.doThrow(new Exception()).whenNew(ClassName.class).withNoArguments();10PowerMock.doNothing().whenNew(ClassName.class).withNoArguments();11PowerMock.doReturn(new ClassName()).whenNew(ClassName.class).withArguments(new Object[]{});12PowerMock.doThrow(new Exception()).whenNew(ClassName.class).withArguments(new Object[]{});13PowerMock.doNothing().whenNew(ClassName.class).withArguments(new Object[]{});14PowerMock.doReturn(new ClassName()).whenNew(ClassName.class).withArguments(new Class[]{}, new Object[]{});15PowerMock.doThrow(new Exception()).whenNew(ClassName.class).withArguments(new Class[]{}, new Object[]{});16PowerMock.doNothing().whenNew(ClassName.class).withArguments(new Class[]{}, new Object[]{});17PowerMock.doReturn(new ClassName()).whenNew(ClassName.class).withArguments(new Class[]{}, new Object[]{}, new Object[]{});

doExpectNew

Using AI Code Generation

1public class MockConstructor {2    public static void main(String[] args) {3        MockConstructor mockConstructor = new MockConstructor();4        mockConstructor.mockConstructor();5    }6    private void mockConstructor() {7        PowerMock.mockStatic(PowerMock.class);8        PowerMock.doExpectNew(ArrayList.class, new Class[]{int.class}, new Object[]{10}).andReturn(null);9        PowerMock.replayAll();10        List list = new ArrayList(10);11        PowerMock.verifyAll();12    }13}14doExpectNew()15public class MockConstructor {16    public static void main(String[] args) {17        MockConstructor mockConstructor = new MockConstructor();18        mockConstructor.mockConstructor();19    }20    private void mockConstructor() {21        PowerMock.mockStatic(PowerMock.class);22        PowerMock.doExpectNew(ArrayList.class, new Class[]{int.class}, new Object[]{10}).andReturn(null);23        PowerMock.replayAll();24        List list = new ArrayList(10);25        PowerMock.verifyAll();26    }27}28doExpectNew()

doExpectNew

Using AI Code Generation

1import org.powermock.api.easymock.PowerMock;2public class SomeClassTest {3    public void testMethod() {4        SomeClass mock = PowerMock.createMock(SomeClass.class);5        PowerMock.expectNew(SomeClass.class).andReturn(mock);6    }7}8The following are the steps to use the createMock() method and the expectNew() method of the PowerMock class to mock a class that does not have a default constructor:9import static org.powermock.api.easymock.PowerMock.*;10import org.junit.Test;11import org.junit.runner.RunWith;12import org.powermock.core.classloader.annotations.PrepareForTest;13import org.powermock.modules.junit4.PowerMockRunner;14@RunWith(PowerMockRunner.class)15@PrepareForTest(SomeClass.class)16public class SomeClassTest {17    public void testMethod() {18        SomeClass mock = createMock(SomeClass.class);19        expectNew(SomeClass.class).andReturn(mock);

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