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How to use evaluateConstructor method of org.mockito.internal.creation.instance.ConstructorInstantiator class

Best Mockito code snippet using org.mockito.internal.creation.instance.ConstructorInstantiator.evaluateConstructor

Source:ConstructorInstantiator.java

...23        LinkedList linkedList = new LinkedList();24        try {25            for (Constructor constructor : cls.getDeclaredConstructors()) {26                if (paramsMatch(constructor.getParameterTypes(), objArr)) {27                    evaluateConstructor(linkedList, constructor);28                }29            }30            if (linkedList.size() == 1) {31                return invokeConstructor((Constructor) linkedList.get(0), objArr);32            }33            if (linkedList.size() == 0) {34                throw noMatchingConstructor(cls);35            }36            throw multipleMatchingConstructors(cls, linkedList);37        } catch (Exception e) {38            throw paramsException(cls, e);39        }40    }41    private static <T> T invokeConstructor(Constructor<?> constructor, Object... objArr) throws InstantiationException, IllegalAccessException, InvocationTargetException {42        new AccessibilityChanger().enableAccess(constructor);43        return constructor.newInstance(objArr);44    }45    private InstantiationException paramsException(Class<?> cls, Exception exc) {46        return new InstantiationException(StringUtil.join("Unable to create instance of '" + cls.getSimpleName() + "'.", "Please ensure the target class has " + constructorArgsString() + " and executes cleanly."), exc);47    }48    private String constructorArgTypes() {49        int i = this.hasOuterClassInstance ? 1 : 0;50        String[] strArr = new String[(this.constructorArgs.length - i)];51        int i2 = i;52        while (true) {53            Object[] objArr = this.constructorArgs;54            if (i2 >= objArr.length) {55                return Arrays.toString(strArr);56            }57            strArr[i2 - i] = objArr[i2] == null ? null : objArr[i2].getClass().getName();58            i2++;59        }60    }61    private InstantiationException noMatchingConstructor(Class<?> cls) {62        String constructorArgsString = constructorArgsString();63        String str = this.hasOuterClassInstance ? " and provided outer instance is correct" : "";64        return new InstantiationException(StringUtil.join("Unable to create instance of '" + cls.getSimpleName() + "'.", "Please ensure that the target class has " + constructorArgsString + str + "."), (Throwable) null);65    }66    private String constructorArgsString() {67        Object[] objArr = this.constructorArgs;68        if (objArr.length == 0 || (this.hasOuterClassInstance && objArr.length == 1)) {69            return "a 0-arg constructor";70        }71        return "a constructor that matches these argument types: " + constructorArgTypes();72    }73    private InstantiationException multipleMatchingConstructors(Class<?> cls, List<Constructor<?>> list) {74        return new InstantiationException(StringUtil.join("Unable to create instance of '" + cls.getSimpleName() + "'.", "Multiple constructors could be matched to arguments of types " + constructorArgTypes() + ":", StringUtil.join("", " - ", list), "If you believe that Mockito could do a better job deciding on which constructor to use, please let us know.", "Ticket 685 contains the discussion and a workaround for ambiguous constructors using inner class.", "See https://github.com/mockito/mockito/issues/685"), (Throwable) null);75    }76    private static boolean paramsMatch(Class<?>[] clsArr, Object[] objArr) {77        if (objArr.length != clsArr.length) {78            return false;79        }80        for (int i = 0; i < objArr.length; i++) {81            if (objArr[i] == null) {82                if (clsArr[i].isPrimitive()) {83                    return false;84                }85            } else if ((!clsArr[i].isPrimitive() && !clsArr[i].isInstance(objArr[i])) || (clsArr[i].isPrimitive() && !clsArr[i].equals(Primitives.primitiveTypeOf(objArr[i].getClass())))) {86                return false;87            }88        }89        return true;90    }91    private void evaluateConstructor(List<Constructor<?>> list, Constructor<?> constructor) {92        Class[] parameterTypes = constructor.getParameterTypes();93        boolean z = false;94        boolean z2 = false;95        for (int i = 0; i < parameterTypes.length; i++) {96            Class cls = parameterTypes[i];97            if (!cls.isPrimitive()) {98                for (Constructor<?> parameterTypes2 : list) {99                    Class cls2 = parameterTypes2.getParameterTypes()[i];100                    if (cls != cls2) {101                        if (cls.isAssignableFrom(cls2)) {102                            z = true;103                        } else {104                            z2 = true;105                        }...

evaluateConstructor

Using AI Code Generation

1org.mockito.internal.creation.instance.ConstructorInstantiator.evaluateConstructor(ConstructorInstantiator.java:39)2org.mockito.internal.creation.instance.ConstructorInstantiator.evaluateConstructor(ConstructorInstantiator.java:39)3org.mockito.internal.creation.instance.ConstructorInstantiator.evaluateConstructor(ConstructorInstantiator.java:39)4org.mockito.internal.creation.instance.ConstructorInstantiator.evaluateConstructor(ConstructorInstantiator.java:39)5org.mockito.internal.creation.instance.ConstructorInstantiator.evaluateConstructor(ConstructorInstantiator.java:39)6org.mockito.internal.creation.instance.ConstructorInstantiator.evaluateConstructor(ConstructorInstantiator.java:39)7org.mockito.internal.creation.instance.ConstructorInstantiator.evaluateConstructor(ConstructorInstantiator.java:39)8org.mockito.internal.creation.instance.ConstructorInstantiator.evaluateConstructor(ConstructorInstantiator.java:39)9org.mockito.internal.creation.instance.ConstructorInstantiator.evaluateConstructor(ConstructorInstantiator.java:39)10org.mockito.internal.creation.instance.ConstructorInstantiator.evaluateConstructor(ConstructorInstantiator.java:39)11org.mockito.internal.creation.instance.ConstructorInstantiator.evaluateConstructor(ConstructorInstantiator.java:39)12org.mockito.internal.creation.instance.ConstructorInstantiator.evaluateConstructor(ConstructorInstantiator.java:39)13org.mockito.internal.creation.instance.ConstructorInstantiator.evaluateConstructor(ConstructorInstantiator.java:39)14org.mockito.internal.creation.instance.ConstructorInstantiator.evaluateConstructor(ConstructorInstantiator.java:39

evaluateConstructor

Using AI Code Generation

1import org.mockito.internal.creation.instance.ConstructorInstantiator;2public class ConstructorInstantiatorTest {3    public static void main(String[] args) throws Exception {4        ConstructorInstantiator constructorInstantiator = new ConstructorInstantiator();5        ConstructorInstantiatorTest obj = constructorInstantiator.evaluateConstructor(ConstructorInstantiatorTest.class, new Class[]{String.class}, new Object[]{"Hello World"});6        System.out.println(obj);7    }8}

evaluateConstructor

Using AI Code Generation

1Mockito.mock(ClassName.class, Mockito.withSettings().useConstructor("param1", "param2"));2package com.logicbig.example;3import org.junit.Test;4import org.mockito.Mockito;5import java.util.List;6import static org.junit.Assert.assertEquals;7public class MockitoWithConstructorExample {8    public void testMockitoWithConstructor () {9        List mockList = Mockito.mock(List.class,10                                     Mockito.withSettings().useConstructor());11        assertEquals(0, mockList.size());12    }13}14	at org.junit.Assert.fail(Assert.java:88)15	at org.junit.Assert.failNotEquals(Assert.java:834)16	at org.junit.Assert.assertEquals(Assert.java:645)17	at org.junit.Assert.assertEquals(Assert.java:631)18	at com.logicbig.example.MockitoWithConstructorExample.testMockitoWithConstructor(MockitoWithConstructorExample.java:17)

evaluateConstructor

Using AI Code Generation

1import org.mockito.internal.creation.instance.ConstructorInstantiator;2import org.mockito.internal.creation.instance.InstantiatorProvider;3import java.lang.reflect.Constructor;4import java.lang.reflect.Method;5public class Test {6    public static void main(String[] args) throws Exception {7        Class<?> clazz = Class.forName("com.example.MyClass");8        Constructor<?> constructor = clazz.getDeclaredConstructor();9        constructor.setAccessible(true);10        Object instance = new ConstructorInstantiator(InstantiatorProvider.instantiate()).newInstance(constructor, null);11        Method method = clazz.getDeclaredMethod("getHello");12        method.setAccessible(true);13        String hello = (String) method.invoke(instance);14        System.out.println(hello);15    }16}17package com.example;18public class MyClass {19    private MyClass() {20    }21    public static String getHello() {22        return "Hello World!";23    }24}25package com.example;26import org.junit.jupiter.api.Test;27import static org.assertj.core.api.Assertions.assertThat;28public class MyClassTest {29    public void testGetHello() throws Exception {30        Class<?> clazz = Class.forName("com.example.MyClass");31        Constructor<?> constructor = clazz.getDeclaredConstructor();32        constructor.setAccessible(true);33        Object instance = new ConstructorInstantiator(InstantiatorProvider.instantiate()).newInstance(constructor, null);34        Method method = clazz.getDeclaredMethod("getHello");35        method.setAccessible(true);36        String hello = (String) method.invoke(instance);37        assertThat(hello).isEqualTo("Hello World!");38    }39}

evaluateConstructor

Using AI Code Generation

1class MyService {2    private final MyDependency dependency;3    public MyService(MyDependency dependency) {4        this.dependency = dependency;5    }6}7class MyServiceTest {8    private MyDependency dependency;9    void test() {10        MyService service = new MyService(dependency);11        ConstructorInstantiator constructorInstantiator = new ConstructorInstantiator();12        Constructor<MyService> constructor = MyService.class.getConstructor(MyDependency.class);13        MyService service2 = constructorInstantiator.evaluateConstructor(constructor, dependency);14        MyService service3 = constructor.newInstance(dependency);15        MyService service4 = constructor.newInstance(dependency);16        Field mockField = service4.getClass().getDeclaredField("dependency");17        mockField.setAccessible(true);18        mockField.set(service4, dependency);19        Field mockField2 = service2.getClass().getDeclaredField("dependency");20        mockField2.setAccessible(true);21        mockField2.set(service2, dependency);22        Field mockField3 = service3.getClass().getDeclaredField("dependency");23        mockField3.setAccessible(true);24        mockField3.set(service3, dependency);25        Field mockField4 = service.getClass().getDeclaredField("dependency");26        mockField4.setAccessible(true);

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