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How to use ThreadLocal.withInitial method of org.mockito.internal.creation.bytebuddy.InlineDelegateByteBuddyMockMaker class

Best Mockito code snippet using org.mockito.internal.creation.bytebuddy.InlineDelegateByteBuddyMockMaker.ThreadLocal.withInitial

Source:InlineDelegateByteBuddyMockMaker.java

1/*2 * Copyright (c) 2016 Mockito contributors3 * This program is made available under the terms of the MIT License.4 */5package org.mockito.internal.creation.bytebuddy;6import net.bytebuddy.agent.ByteBuddyAgent;7import org.mockito.MockedConstruction;8import org.mockito.creation.instance.InstantiationException;9import org.mockito.creation.instance.Instantiator;10import org.mockito.exceptions.base.MockitoException;11import org.mockito.exceptions.base.MockitoInitializationException;12import org.mockito.exceptions.misusing.MockitoConfigurationException;13import org.mockito.internal.SuppressSignatureCheck;14import org.mockito.internal.configuration.plugins.Plugins;15import org.mockito.internal.creation.instance.ConstructorInstantiator;16import org.mockito.internal.util.Platform;17import org.mockito.internal.util.concurrent.DetachedThreadLocal;18import org.mockito.internal.util.concurrent.WeakConcurrentMap;19import org.mockito.invocation.MockHandler;20import org.mockito.mock.MockCreationSettings;21import org.mockito.plugins.InlineMockMaker;22import org.mockito.plugins.MemberAccessor;23import java.io.File;24import java.io.FileOutputStream;25import java.io.IOException;26import java.io.InputStream;27import java.lang.instrument.Instrumentation;28import java.lang.reflect.Constructor;29import java.lang.reflect.Modifier;30import java.util.*;31import java.util.concurrent.ConcurrentHashMap;32import java.util.function.BiConsumer;33import java.util.function.Function;34import java.util.function.Predicate;35import java.util.jar.JarEntry;36import java.util.jar.JarFile;37import java.util.jar.JarOutputStream;38import static org.mockito.internal.creation.bytebuddy.InlineBytecodeGenerator.EXCLUDES;39import static org.mockito.internal.util.StringUtil.join;40/**41 * Agent and subclass based mock maker.42 * <p>43 * This mock maker which uses a combination of the Java instrumentation API and sub-classing rather than creating44 * a new sub-class to create a mock. This way, it becomes possible to mock final types and methods. This mock45 * maker <strong>must to be activated explicitly</strong> for supporting mocking final types and methods:46 * <p>47 * <p>48 * This mock maker can be activated by creating the file <code>/mockito-extensions/org.mockito.plugins.MockMaker</code>49 * containing the text <code>mock-maker-inline</code> or <code>org.mockito.internal.creation.bytebuddy.InlineByteBuddyMockMaker</code>.50 * <p>51 * <p>52 * This mock maker will make a best effort to avoid subclass creation when creating a mock. Otherwise it will use the53 * <code>org.mockito.internal.creation.bytebuddy.SubclassByteBuddyMockMaker</code> to create the mock class. That means54 * that the following condition is true55 * <p>56 * <pre class="code"><code class="java">57 * class Foo { }58 * assert mock(Foo.class).getClass() == Foo.class;59 * </pre></code>60 * <p>61 * unless any of the following conditions is met, in such case the mock maker <em>fall backs</em> to the62 * the creation of a subclass.63 * <p>64 * <ul>65 * <li>the type to mock is an abstract class.</li>66 * <li>the mock is set to require additional interfaces.</li>67 * <li>the mock is <a href="#20">explicitly set to support serialization</a>.</li>68 * </ul>69 * <p>70 * <p>71 * Some type of the JDK cannot be mocked, this includes <code>Class</code>, <code>String</code>, and wrapper types.72 * <p>73 * <p>74 * Nevertheless, final methods of such types are mocked when using the inlining mock maker. Mocking final types and enums75 * does however remain impossible when explicitly requiring serialization support or when adding ancillary interfaces.76 * <p>77 * <p>78 * Important behavioral changes when using inline-mocks:79 * <ul>80 * <li>Mockito is capable of mocking package-private methods even if they are defined in different packages than81 * the mocked type. Mockito voluntarily never mocks package-visible methods within <code>java.*</code> packages.</li>82 * <li>Additionally to final types, Mockito can now mock types that are not visible for extension; such types83 * include private types in a protected package.</li>84 * <li>Mockito can no longer mock <code>native</code> methods. Inline mocks require byte code manipulation of a85 * method where native methods do not offer any byte code to manipulate.</li>86 * <li>Mockito cannot longer strip <code>synchronized</code> modifiers from mocked instances.</li>87 * </ul>88 * <p>89 * <p>90 * Note that inline mocks require a Java agent to be attached. Mockito will attempt an attachment of a Java agent upon91 * loading the mock maker for creating inline mocks. Such runtime attachment is only possible when using a JVM that92 * is part of a JDK or when using a Java 9 VM. When running on a non-JDK VM prior to Java 9, it is however possible to93 * manually add the <a href="https://bytebuddy.net">Byte Buddy Java agent jar</a> using the <code>-javaagent</code>94 * parameter upon starting the JVM. Furthermore, the inlining mock maker requires the VM to support class retransformation95 * (also known as HotSwap). All major VM distributions such as HotSpot (OpenJDK), J9 (IBM/Websphere) or Zing (Azul)96 * support this feature.97 */98@SuppressSignatureCheck99class InlineDelegateByteBuddyMockMaker100        implements ClassCreatingMockMaker, InlineMockMaker, Instantiator {101    private static final Instrumentation INSTRUMENTATION;102    private static final Throwable INITIALIZATION_ERROR;103    static {104        Instrumentation instrumentation;105        Throwable initializationError = null;106        try {107            try {108                instrumentation = ByteBuddyAgent.install();109                if (!instrumentation.isRetransformClassesSupported()) {110                    throw new IllegalStateException(111                            join(112                                    "Byte Buddy requires retransformation for creating inline mocks. This feature is unavailable on the current VM.",113                                    "",114                                    "You cannot use this mock maker on this VM"));115                }116                File boot = File.createTempFile("mockitoboot", ".jar");117                boot.deleteOnExit();118                JarOutputStream outputStream = new JarOutputStream(new FileOutputStream(boot));119                try {120                    String source =121                            "org/mockito/internal/creation/bytebuddy/inject/MockMethodDispatcher";122                    InputStream inputStream =123                            InlineDelegateByteBuddyMockMaker.class124                                    .getClassLoader()125                                    .getResourceAsStream(source + ".raw");126                    if (inputStream == null) {127                        throw new IllegalStateException(128                                join(129                                        "The MockMethodDispatcher class file is not locatable: "130                                                + source131                                                + ".raw",132                                        "",133                                        "The class loader responsible for looking up the resource: "134                                                + InlineDelegateByteBuddyMockMaker.class135                                                        .getClassLoader()));136                    }137                    outputStream.putNextEntry(new JarEntry(source + ".class"));138                    try {139                        int length;140                        byte[] buffer = new byte[1024];141                        while ((length = inputStream.read(buffer)) != -1) {142                            outputStream.write(buffer, 0, length);143                        }144                    } finally {145                        inputStream.close();146                    }147                    outputStream.closeEntry();148                } finally {149                    outputStream.close();150                }151                try (JarFile jarfile = new JarFile(boot)) {152                    instrumentation.appendToBootstrapClassLoaderSearch(jarfile);153                }154                try {155                    Class.forName(156                            "org.mockito.internal.creation.bytebuddy.inject.MockMethodDispatcher",157                            false,158                            null);159                } catch (ClassNotFoundException cnfe) {160                    throw new IllegalStateException(161                            join(162                                    "Mockito failed to inject the MockMethodDispatcher class into the bootstrap class loader",163                                    "",164                                    "It seems like your current VM does not support the instrumentation API correctly."),165                            cnfe);166                }167            } catch (IOException ioe) {168                throw new IllegalStateException(169                        join(170                                "Mockito could not self-attach a Java agent to the current VM. This feature is required for inline mocking.",171                                "This error occured due to an I/O error during the creation of this agent: "172                                        + ioe,173                                "",174                                "Potentially, the current VM does not support the instrumentation API correctly"),175                        ioe);176            }177        } catch (Throwable throwable) {178            instrumentation = null;179            initializationError = throwable;180        }181        INSTRUMENTATION = instrumentation;182        INITIALIZATION_ERROR = initializationError;183    }184    private final BytecodeGenerator bytecodeGenerator;185    private final WeakConcurrentMap<Object, MockMethodInterceptor> mocks =186            new WeakConcurrentMap.WithInlinedExpunction<Object, MockMethodInterceptor>();187    private final DetachedThreadLocal<Map<Class<?>, MockMethodInterceptor>> mockedStatics =188            new DetachedThreadLocal<>(DetachedThreadLocal.Cleaner.INLINE);189    private final DetachedThreadLocal<Map<Class<?>, BiConsumer<Object, MockedConstruction.Context>>>190            mockedConstruction = new DetachedThreadLocal<>(DetachedThreadLocal.Cleaner.INLINE);191    private final ThreadLocal<Boolean> mockitoConstruction = ThreadLocal.withInitial(() -> false);192    private final ThreadLocal<Object> currentSpied = new ThreadLocal<>();193    InlineDelegateByteBuddyMockMaker() {194        if (INITIALIZATION_ERROR != null) {195            String detail;196            if (System.getProperty("java.specification.vendor", "")197                    .toLowerCase()198                    .contains("android")) {199                detail =200                        "It appears as if you are trying to run this mock maker on Android which does not support the instrumentation API.";201            } else {202                try {203                    if (INITIALIZATION_ERROR instanceof NoClassDefFoundError204                            && INITIALIZATION_ERROR.getMessage() != null205                            && INITIALIZATION_ERROR206                                    .getMessage()207                                    .startsWith("net/bytebuddy/agent/")) {208                        detail =209                                join(210                                        "It seems like you are running Mockito with an incomplete or inconsistent class path. Byte Buddy Agent could not be loaded.",211                                        "",212                                        "Byte Buddy Agent is available on Maven Central as 'net.bytebuddy:byte-buddy-agent' with the module name 'net.bytebuddy.agent'.",213                                        "Normally, your IDE or build tool (such as Maven or Gradle) should take care of your class path completion but ");214                    } else if (Class.forName("javax.tools.ToolProvider")215                                    .getMethod("getSystemJavaCompiler")216                                    .invoke(null)217                            == null) {218                        detail =219                                "It appears as if you are running on a JRE. Either install a JDK or add JNA to the class path.";220                    } else {221                        detail =222                                "It appears as if your JDK does not supply a working agent attachment mechanism.";223                    }224                } catch (Throwable ignored) {225                    detail =226                            "It appears as if you are running an incomplete JVM installation that might not support all tooling APIs";227                }228            }229            throw new MockitoInitializationException(230                    join(231                            "Could not initialize inline Byte Buddy mock maker.",232                            "",233                            detail,234                            Platform.describe()),235                    INITIALIZATION_ERROR);236        }237        ThreadLocal<Class<?>> currentConstruction = new ThreadLocal<>();238        ThreadLocal<Boolean> isSuspended = ThreadLocal.withInitial(() -> false);239        Predicate<Class<?>> isMockConstruction =240                type -> {241                    if (isSuspended.get()) {242                        return false;243                    } else if (mockitoConstruction.get() || currentConstruction.get() != null) {244                        return true;245                    }246                    Map<Class<?>, ?> interceptors = mockedConstruction.get();247                    if (interceptors != null && interceptors.containsKey(type)) {248                        currentConstruction.set(type);249                        return true;250                    } else {251                        return false;252                    }253                };254        ConstructionCallback onConstruction =255                (type, object, arguments, parameterTypeNames) -> {256                    if (mockitoConstruction.get()) {257                        Object spy = currentSpied.get();258                        if (spy == null) {259                            return null;260                        } else if (type.isInstance(spy)) {261                            return spy;262                        } else {263                            isSuspended.set(true);264                            try {265                                // Unexpected construction of non-spied object266                                throw new MockitoException(267                                        "Unexpected spy for "268                                                + type.getName()269                                                + " on instance of "270                                                + object.getClass().getName(),271                                        object instanceof Throwable ? (Throwable) object : null);272                            } finally {273                                isSuspended.set(false);274                            }275                        }276                    } else if (currentConstruction.get() != type) {277                        return null;278                    }279                    currentConstruction.remove();280                    isSuspended.set(true);281                    try {282                        Map<Class<?>, BiConsumer<Object, MockedConstruction.Context>> interceptors =283                                mockedConstruction.get();284                        if (interceptors != null) {285                            BiConsumer<Object, MockedConstruction.Context> interceptor =286                                    interceptors.get(type);287                            if (interceptor != null) {288                                interceptor.accept(289                                        object,290                                        new InlineConstructionMockContext(291                                                arguments, object.getClass(), parameterTypeNames));292                            }293                        }294                    } finally {295                        isSuspended.set(false);296                    }297                    return null;298                };299        bytecodeGenerator =300                new TypeCachingBytecodeGenerator(301                        new InlineBytecodeGenerator(302                                INSTRUMENTATION,303                                mocks,304                                mockedStatics,305                                isMockConstruction,306                                onConstruction),307                        true);308    }309    @Override310    public <T> T createMock(MockCreationSettings<T> settings, MockHandler handler) {311        return doCreateMock(settings, handler, false);312    }313    @Override314    public <T> Optional<T> createSpy(315            MockCreationSettings<T> settings, MockHandler handler, T object) {316        if (object == null) {317            throw new MockitoConfigurationException("Spy instance must not be null");318        }319        currentSpied.set(object);320        try {321            return Optional.ofNullable(doCreateMock(settings, handler, true));322        } finally {323            currentSpied.remove();324        }325    }326    private <T> T doCreateMock(327            MockCreationSettings<T> settings,328            MockHandler handler,329            boolean nullOnNonInlineConstruction) {330        Class<? extends T> type = createMockType(settings);331        try {332            T instance;333            if (settings.isUsingConstructor()) {334                instance =335                        new ConstructorInstantiator(336                                        settings.getOuterClassInstance() != null,337                                        settings.getConstructorArgs())338                                .newInstance(type);339            } else {340                try {341                    // We attempt to use the "native" mock maker first that avoids342                    // Objenesis and Unsafe343                    instance = newInstance(type);344                } catch (InstantiationException ignored) {345                    if (nullOnNonInlineConstruction) {346                        return null;347                    }348                    Instantiator instantiator =349                            Plugins.getInstantiatorProvider().getInstantiator(settings);350                    instance = instantiator.newInstance(type);351                }352            }353            MockMethodInterceptor mockMethodInterceptor =354                    new MockMethodInterceptor(handler, settings);355            mocks.put(instance, mockMethodInterceptor);356            if (instance instanceof MockAccess) {357                ((MockAccess) instance).setMockitoInterceptor(mockMethodInterceptor);358            }359            return instance;360        } catch (InstantiationException e) {361            throw new MockitoException(362                    "Unable to create mock instance of type '" + type.getSimpleName() + "'", e);363        }364    }365    @Override366    public <T> Class<? extends T> createMockType(MockCreationSettings<T> settings) {367        try {368            return bytecodeGenerator.mockClass(369                    MockFeatures.withMockFeatures(370                            settings.getTypeToMock(),371                            settings.getExtraInterfaces(),372                            settings.getSerializableMode(),373                            settings.isStripAnnotations(),374                            settings.getDefaultAnswer()));375        } catch (Exception bytecodeGenerationFailed) {376            throw prettifyFailure(settings, bytecodeGenerationFailed);377        }378    }379    private <T> RuntimeException prettifyFailure(380            MockCreationSettings<T> mockFeatures, Exception generationFailed) {381        if (mockFeatures.getTypeToMock().isArray()) {382            throw new MockitoException(383                    join("Arrays cannot be mocked: " + mockFeatures.getTypeToMock() + ".", ""),384                    generationFailed);385        }386        if (Modifier.isFinal(mockFeatures.getTypeToMock().getModifiers())) {387            throw new MockitoException(388                    join(389                            "Mockito cannot mock this class: " + mockFeatures.getTypeToMock() + ".",390                            "Can not mock final classes with the following settings :",391                            " - explicit serialization (e.g. withSettings().serializable())",392                            " - extra interfaces (e.g. withSettings().extraInterfaces(...))",393                            "",394                            "You are seeing this disclaimer because Mockito is configured to create inlined mocks.",395                            "You can learn about inline mocks and their limitations under item #39 of the Mockito class javadoc.",396                            "",397                            "Underlying exception : " + generationFailed),398                    generationFailed);399        }400        if (Modifier.isPrivate(mockFeatures.getTypeToMock().getModifiers())) {401            throw new MockitoException(402                    join(403                            "Mockito cannot mock this class: " + mockFeatures.getTypeToMock() + ".",404                            "Most likely it is a private class that is not visible by Mockito",405                            "",406                            "You are seeing this disclaimer because Mockito is configured to create inlined mocks.",407                            "You can learn about inline mocks and their limitations under item #39 of the Mockito class javadoc.",408                            ""),409                    generationFailed);410        }411        throw new MockitoException(412                join(413                        "Mockito cannot mock this class: " + mockFeatures.getTypeToMock() + ".",414                        "",415                        "If you're not sure why you're getting this error, please report to the mailing list.",416                        "",417                        Platform.warnForVM(418                                "IBM J9 VM",419                                "Early IBM virtual machine are known to have issues with Mockito, please upgrade to an up-to-date version.\n",420                                "Hotspot",421                                Platform.isJava8BelowUpdate45()422                                        ? "Java 8 early builds have bugs that were addressed in Java 1.8.0_45, please update your JDK!\n"423                                        : ""),424                        Platform.describe(),425                        "",426                        "You are seeing this disclaimer because Mockito is configured to create inlined mocks.",427                        "You can learn about inline mocks and their limitations under item #39 of the Mockito class javadoc.",428                        "",429                        "Underlying exception : " + generationFailed),430                generationFailed);431    }432    @Override433    public MockHandler getHandler(Object mock) {434        MockMethodInterceptor interceptor;435        if (mock instanceof Class<?>) {436            Map<Class<?>, MockMethodInterceptor> interceptors = mockedStatics.get();437            interceptor = interceptors != null ? interceptors.get(mock) : null;438        } else {439            interceptor = mocks.get(mock);440        }441        if (interceptor == null) {442            return null;443        } else {444            return interceptor.handler;445        }446    }447    @Override448    public void resetMock(Object mock, MockHandler newHandler, MockCreationSettings settings) {449        MockMethodInterceptor mockMethodInterceptor =450                new MockMethodInterceptor(newHandler, settings);451        if (mock instanceof Class<?>) {452            Map<Class<?>, MockMethodInterceptor> interceptors = mockedStatics.get();453            if (interceptors == null || !interceptors.containsKey(mock)) {454                throw new MockitoException(455                        "Cannot reset "456                                + mock457                                + " which is not currently registered as a static mock");458            }459            interceptors.put((Class<?>) mock, mockMethodInterceptor);460        } else {461            if (!mocks.containsKey(mock)) {462                throw new MockitoException(463                        "Cannot reset " + mock + " which is not currently registered as a mock");464            }465            mocks.put(mock, mockMethodInterceptor);466            if (mock instanceof MockAccess) {467                ((MockAccess) mock).setMockitoInterceptor(mockMethodInterceptor);468            }469        }470    }471    @Override472    public void clearAllCaches() {473        clearAllMocks();474        bytecodeGenerator.clearAllCaches();475    }476    @Override477    public void clearMock(Object mock) {478        if (mock instanceof Class<?>) {479            for (Map<Class<?>, ?> entry : mockedStatics.getBackingMap().target.values()) {480                entry.remove(mock);481            }482        } else {483            mocks.remove(mock);484        }485    }486    @Override487    public void clearAllMocks() {488        mockedStatics.getBackingMap().clear();489        mocks.clear();490    }491    @Override492    public TypeMockability isTypeMockable(final Class<?> type) {493        return new TypeMockability() {494            @Override495            public boolean mockable() {496                return INSTRUMENTATION.isModifiableClass(type) && !EXCLUDES.contains(type);497            }498            @Override499            public String nonMockableReason() {500                if (mockable()) {501                    return "";502                }503                if (type.isPrimitive()) {504                    return "primitive type";505                }506                if (EXCLUDES.contains(type)) {507                    return "Cannot mock wrapper types, String.class or Class.class";508                }509                return "VM does not support modification of given type";510            }511        };512    }513    @Override514    public <T> StaticMockControl<T> createStaticMock(515            Class<T> type, MockCreationSettings<T> settings, MockHandler handler) {516        if (type == ConcurrentHashMap.class) {517            throw new MockitoException(518                    "It is not possible to mock static methods of ConcurrentHashMap "519                            + "to avoid infinitive loops within Mockito's implementation of static mock handling");520        } else if (type == Thread.class521                || type == System.class522                || type == Arrays.class523                || ClassLoader.class.isAssignableFrom(type)) {524            throw new MockitoException(525                    "It is not possible to mock static methods of "526                            + type.getName()527                            + " to avoid interfering with class loading what leads to infinite loops");528        }529        bytecodeGenerator.mockClassStatic(type);530        Map<Class<?>, MockMethodInterceptor> interceptors = mockedStatics.get();531        if (interceptors == null) {532            interceptors = new WeakHashMap<>();533            mockedStatics.set(interceptors);534        }535        return new InlineStaticMockControl<>(type, interceptors, settings, handler);536    }537    @Override538    public <T> ConstructionMockControl<T> createConstructionMock(539            Class<T> type,540            Function<MockedConstruction.Context, MockCreationSettings<T>> settingsFactory,541            Function<MockedConstruction.Context, MockHandler<T>> handlerFactory,542            MockedConstruction.MockInitializer<T> mockInitializer) {543        if (type == Object.class) {544            throw new MockitoException(545                    "It is not possible to mock construction of the Object class "546                            + "to avoid inference with default object constructor chains");547        } else if (type.isPrimitive() || Modifier.isAbstract(type.getModifiers())) {548            throw new MockitoException(549                    "It is not possible to construct primitive types or abstract types: "550                            + type.getName());551        }552        bytecodeGenerator.mockClassConstruction(type);553        Map<Class<?>, BiConsumer<Object, MockedConstruction.Context>> interceptors =554                mockedConstruction.get();555        if (interceptors == null) {556            interceptors = new WeakHashMap<>();557            mockedConstruction.set(interceptors);558        }559        return new InlineConstructionMockControl<>(560                type, settingsFactory, handlerFactory, mockInitializer, interceptors);561    }562    @Override563    @SuppressWarnings("unchecked")564    public <T> T newInstance(Class<T> cls) throws InstantiationException {565        Constructor<?>[] constructors = cls.getDeclaredConstructors();566        if (constructors.length == 0) {567            throw new InstantiationException(cls.getName() + " does not define a constructor");568        }569        Constructor<?> selected = constructors[0];570        for (Constructor<?> constructor : constructors) {571            if (Modifier.isPublic(constructor.getModifiers())) {572                selected = constructor;573                break;574            }575        }576        Class<?>[] types = selected.getParameterTypes();577        Object[] arguments = new Object[types.length];578        int index = 0;579        for (Class<?> type : types) {580            arguments[index++] = makeStandardArgument(type);581        }582        MemberAccessor accessor = Plugins.getMemberAccessor();583        try {584            return (T)585                    accessor.newInstance(586                            selected,587                            callback -> {588                                mockitoConstruction.set(true);589                                try {590                                    return callback.newInstance();591                                } finally {592                                    mockitoConstruction.set(false);593                                }594                            },595                            arguments);596        } catch (Exception e) {597            throw new InstantiationException("Could not instantiate " + cls.getName(), e);598        }599    }600    private Object makeStandardArgument(Class<?> type) {601        if (type == boolean.class) {602            return false;603        } else if (type == byte.class) {604            return (byte) 0;605        } else if (type == short.class) {606            return (short) 0;607        } else if (type == char.class) {608            return (char) 0;609        } else if (type == int.class) {610            return 0;611        } else if (type == long.class) {612            return 0L;613        } else if (type == float.class) {614            return 0f;615        } else if (type == double.class) {616            return 0d;617        } else {618            return null;619        }620    }621    private static class InlineStaticMockControl<T> implements StaticMockControl<T> {622        private final Class<T> type;623        private final Map<Class<?>, MockMethodInterceptor> interceptors;624        private final MockCreationSettings<T> settings;625        private final MockHandler handler;626        private InlineStaticMockControl(627                Class<T> type,628                Map<Class<?>, MockMethodInterceptor> interceptors,629                MockCreationSettings<T> settings,630                MockHandler handler) {631            this.type = type;632            this.interceptors = interceptors;633            this.settings = settings;634            this.handler = handler;635        }636        @Override637        public Class<T> getType() {638            return type;639        }640        @Override641        public void enable() {642            if (interceptors.putIfAbsent(type, new MockMethodInterceptor(handler, settings))643                    != null) {644                throw new MockitoException(645                        join(646                                "For "647                                        + type.getName()648                                        + ", static mocking is already registered in the current thread",649                                "",650                                "To create a new mock, the existing static mock registration must be deregistered"));651            }652        }653        @Override654        public void disable() {655            if (interceptors.remove(type) == null) {656                throw new MockitoException(657                        join(658                                "Could not deregister "659                                        + type.getName()660                                        + " as a static mock since it is not currently registered",661                                "",662                                "To register a static mock, use Mockito.mockStatic("663                                        + type.getSimpleName()664                                        + ".class)"));665            }666        }667    }668    private class InlineConstructionMockControl<T> implements ConstructionMockControl<T> {669        private final Class<T> type;670        private final Function<MockedConstruction.Context, MockCreationSettings<T>> settingsFactory;671        private final Function<MockedConstruction.Context, MockHandler<T>> handlerFactory;672        private final MockedConstruction.MockInitializer<T> mockInitializer;673        private final Map<Class<?>, BiConsumer<Object, MockedConstruction.Context>> interceptors;674        private final List<Object> all = new ArrayList<>();675        private int count;676        private InlineConstructionMockControl(677                Class<T> type,678                Function<MockedConstruction.Context, MockCreationSettings<T>> settingsFactory,679                Function<MockedConstruction.Context, MockHandler<T>> handlerFactory,680                MockedConstruction.MockInitializer<T> mockInitializer,681                Map<Class<?>, BiConsumer<Object, MockedConstruction.Context>> interceptors) {682            this.type = type;683            this.settingsFactory = settingsFactory;684            this.handlerFactory = handlerFactory;685            this.mockInitializer = mockInitializer;686            this.interceptors = interceptors;687        }688        @Override689        public Class<T> getType() {690            return type;691        }692        @Override693        public void enable() {694            if (interceptors.putIfAbsent(695                            type,696                            (object, context) -> {697                                ((InlineConstructionMockContext) context).count = ++count;698                                MockMethodInterceptor interceptor =699                                        new MockMethodInterceptor(700                                                handlerFactory.apply(context),701                                                settingsFactory.apply(context));702                                mocks.put(object, interceptor);703                                try {704                                    @SuppressWarnings("unchecked")705                                    T cast = (T) object;706                                    mockInitializer.prepare(cast, context);707                                } catch (Throwable t) {708                                    mocks.remove(object); // TODO: filter stack trace?709                                    throw new MockitoException(710                                            "Could not initialize mocked construction", t);711                                }712                                all.add(object);713                            })714                    != null) {715                throw new MockitoException(716                        join(717                                "For "718                                        + type.getName()719                                        + ", static mocking is already registered in the current thread",720                                "",721                                "To create a new mock, the existing static mock registration must be deregistered"));722            }723        }724        @Override725        public void disable() {726            if (interceptors.remove(type) == null) {727                throw new MockitoException(728                        join(729                                "Could not deregister "730                                        + type.getName()731                                        + " as a static mock since it is not currently registered",732                                "",733                                "To register a static mock, use Mockito.mockStatic("734                                        + type.getSimpleName()735                                        + ".class)"));736            }737            all.clear();738        }739        @Override740        @SuppressWarnings("unchecked")741        public List<T> getMocks() {742            return (List<T>) all;743        }744    }745    private static class InlineConstructionMockContext implements MockedConstruction.Context {746        private static final Map<String, Class<?>> PRIMITIVES = new HashMap<>();747        static {748            PRIMITIVES.put(boolean.class.getName(), boolean.class);749            PRIMITIVES.put(byte.class.getName(), byte.class);750            PRIMITIVES.put(short.class.getName(), short.class);751            PRIMITIVES.put(char.class.getName(), char.class);752            PRIMITIVES.put(int.class.getName(), int.class);753            PRIMITIVES.put(long.class.getName(), long.class);754            PRIMITIVES.put(float.class.getName(), float.class);755            PRIMITIVES.put(double.class.getName(), double.class);756        }757        private int count;758        private final Object[] arguments;759        private final Class<?> type;760        private final String[] parameterTypeNames;761        private InlineConstructionMockContext(762                Object[] arguments, Class<?> type, String[] parameterTypeNames) {763            this.arguments = arguments;764            this.type = type;765            this.parameterTypeNames = parameterTypeNames;766        }767        @Override768        public int getCount() {769            if (count == 0) {770                throw new MockitoConfigurationException(771                        "mocked construction context is not initialized");772            }773            return count;774        }775        @Override776        public Constructor<?> constructor() {777            Class<?>[] parameterTypes = new Class<?>[parameterTypeNames.length];778            int index = 0;779            for (String parameterTypeName : parameterTypeNames) {780                if (PRIMITIVES.containsKey(parameterTypeName)) {781                    parameterTypes[index++] = PRIMITIVES.get(parameterTypeName);782                } else {783                    try {784                        parameterTypes[index++] =785                                Class.forName(parameterTypeName, false, type.getClassLoader());786                    } catch (ClassNotFoundException e) {787                        throw new MockitoException(788                                "Could not find parameter of type " + parameterTypeName, e);789                    }790                }791            }792            try {793                return type.getDeclaredConstructor(parameterTypes);794            } catch (NoSuchMethodException e) {795                throw new MockitoException(796                        join(797                                "Could not resolve constructor of type",798                                "",799                                type.getName(),800                                "",801                                "with arguments of types",802                                Arrays.toString(parameterTypes)),803                        e);804            }805        }806        @Override807        public List<?> arguments() {808            return Collections.unmodifiableList(Arrays.asList(arguments));809        }810    }811}...

ThreadLocal.withInitial

Using AI Code Generation

1package com.example.demo;2import org.junit.jupiter.api.Test;3import rg.mokito.Mockito;4import jva.uti.Collections;5importjaa.util.List;6import static org.junit.jupiter.pi.Assetions.assertEquals;7publc clss MockitoInlineDelegateByteBuddyMockMakerTest {8    pulic void test() {9        List mock = Mockito.mock(List.class, Mockito.withSettings().defautAnswr(MockitoCALLS_REAL_METHODS));10        assertEquals(Collections.emptyList(), mock);11    }12}

ThreadLocal.withInitial

Using AI Code Generation

1import org.mockito.Mockito;2import java.util.concurrent.atomic.AtomicInteger;3public class Main {4    public static void main(String[] args) {5        AtomicInteger counter = new AtomicInteger(0);6        MyInterface mock = Mockito.mock(MyInterface.class, Mockito.withSettings().defaultAnswer(invocation -> {7            return counter.incrementAndGet();8        }));9        System.out.println(mock.foo());10        System.out.println(mock.foo());11        System.out.println(mock.foo());12    }13    public interface MyInterface {14        int foo();15    }16}

ThreadLocal.withInitial

Using AI Code Generation

1package com.example.demo;2import org.junit.jupiter.api.Test;3import org.mockito.Mockito;4import java.util.Collections;5import java.util.List;6import static org.junit.jupiter.api.Assertions.assertEquals;7public class MockitoInlineDelegateByteBuddyMockMakerTest {8    public void test() {9        List mock = Mockito.mock(List.class, Mockito.withSettings().defaultAnswer(Mockito.CALLS_REAL_METHODS));10        assertEquals(Collections.emptyList(), mock);11    }12}

ThreadLocal.withInitial

Using AI Code Generation

1public class ThreadLocalInitialTest {2    private static final ThreadLocal<String> threadLocal = ThreadLocal.withInitial(() -> "test");3    public void test() {4        String value = threadLocal.get();5        System.out.println(value);6    }7}8public class ThreadLocalGetTest {9    private static final ThreadLocal<String> threadLocal = new ThreadLocal<>();10    public void test() {11        String value = threadLocal.get();12        System.out.println(value);13    }

ThreadLocal.withInitial

Using AI Code Generation

1public class ThreadLocalSetTest {2    private static final ThreadLocal<String> threadLocal = new ThreadLocal<>();3    public void test() {4        threadLocal.set("test");5        String value = threadLocal.get();6        System.out.println(value);7    }8}9public class ThreadLocalRemoveTest {10    private static final ThreadLocal<String> threadLocal = new ThreadLocal<>();11    public void test() {12        threadLocal.set("test");13        threadLocal.remove();14        String value = threadLocal.get();15        System.out.println(value);16    }17}18public class ThreadLocalHashCodeTest {19    private static final ThreadLocal<String> threadLocal = new ThreadLocal<>();20    public void test() {21        int hashCode = threadLocal.hashCode();22        System.out.println(hashCode);23    }24}25public class ThreadLocalEqualsTest {26    private static final ThreadLocal<String> threadLocal = new ThreadLocal<>();27    public void test() {28        boolean equals = threadLocal.equals(threadLocal);

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