How to use SuppressConstructorDemo class of samples.suppressconstructor package

Best Powermock code snippet using samples.suppressconstructor.SuppressConstructorDemo

Source:SuppressConstructorDemoTest.java

...20import org.powermock.api.support.membermodification.MemberMatcher;21import org.powermock.api.support.membermodification.MemberModifier;22import org.powermock.core.classloader.annotations.PrepareForTest;23import org.powermock.modules.junit4.PowerMockRunner;24import samples.suppressconstructor.SuppressConstructorDemo;25import samples.suppressconstructor.SuppressConstructorSubclassDemo;26/**27 * This test demonstrates how to tell PowerMock to avoid executing constructor28 * code for a certain class. This is crucial in certain tests where the29 * constructor or a subclass's constructor performs operations that are of no30 * concern to the unit test of the actual class or if the constructor performs31 * operations, such as getting services from a runtime environment that has not32 * been initialized. In normal situations you're forced to create an integration33 * or function test for the class instead (and thus the runtime environment is34 * available). This is not particularly good when it comes to testing method35 * logic. PowerMock solves these problems by letting you specify the36 * {@link PowerMock#suppressConstructor(Class...)} method37 */38@RunWith(PowerMockRunner.class)39@PrepareForTest(SuppressConstructorDemo.class)40public class SuppressConstructorDemoTest {41    /**42     * This test makes sure that the real constructor has never been called.43     */44    @Test45    public void testSuppressConstructor() throws Exception {46        MemberModifier.suppress(MemberMatcher.constructor(SuppressConstructorDemo.class));47        final SuppressConstructorDemo tested = new SuppressConstructorDemo("a message");48        Assert.assertNull("Message should have been null since we're skipping the execution of the constructor code.", tested.getMessage());49    }50    /**51     * This test makes sure that the real parent constructor has never been52     * called.53     */54    @Test55    public void testSuppressParentConstructor() throws Exception {56        MemberModifier.suppress(MemberMatcher.constructor(SuppressConstructorSubclassDemo.class));57        final SuppressConstructorDemo tested = new SuppressConstructorDemo("a message");58        Assert.assertNull("Message should have been null since we're skipping the execution of the constructor code.", tested.getMessage());59    }60    /**61     * This test makes sure that it's possible to also mock methods from the62     * class under test at the same time as skipping constructor execution.63     */64    @Test65    public void testPartialMockingAndSuppressParentConstructor() throws Exception {66        MemberModifier.suppress(MemberMatcher.constructor(SuppressConstructorSubclassDemo.class));67        final SuppressConstructorDemo tested = createPartialMock(SuppressConstructorDemo.class, "returnAMessage");68        final String expected = "Hello world!";69        expectPrivate(tested, "returnAMessage").andReturn(expected);70        replay(tested);71        final String actual = tested.getMyOwnMessage();72        verify(tested);73        Assert.assertEquals(expected, actual);74        Assert.assertNull("Message should have been null since we're skipping the execution of the constructor code.", tested.getMessage());75    }76}...

Source:CreateUnmockedTest.java

...19import org.junit.runner.RunWith;20import org.powermock.api.easymock.PowerMock;21import org.powermock.modules.junit4.PowerMockRunner;22import org.powermock.reflect.Whitebox;23import samples.suppressconstructor.SuppressConstructorDemo;24import samples.suppressconstructor.SuppressSpecificConstructorDemo;25@RunWith(PowerMockRunner.class)26public class CreateUnmockedTest {27    @Test28    public void testUnmockedWithNoConstructorAndReplayVerify() throws Exception {29        SuppressSpecificConstructorDemo object = Whitebox.newInstance(SuppressSpecificConstructorDemo.class);30        PowerMock.niceReplayAndVerify();31        PowerMock.replay(object);32        Assert.assertEquals("Hello", object.getHello());33        PowerMock.verify(object);34    }35    @Test36    public void testUnmockedWithConstructorAndAllowReplay() throws Exception {37        PowerMock.niceReplayAndVerify();38        SuppressConstructorDemo object = new SuppressConstructorDemo("Hello");39        PowerMock.replay(object);40        Assert.assertEquals("Hello", object.getMessage());41        PowerMock.verify(object);42    }43    @Test44    public void testUnmockedWithReplayCausesException() throws Exception {45        SuppressConstructorDemo object = new SuppressConstructorDemo("Hello");46        try {47            PowerMock.replay(object);48            Assert.fail("Replay should only work on mocks");49        } catch (RuntimeException e) {50            // ignore51        }52    }53}...

SuppressConstructorDemo

Using AI Code Generation

1import samples.suppressconstructor.SuppressConstructorDemo;2public class SuppressConstructorDemoUser {3    public static void main(String[] args) {4        SuppressConstructorDemo scd = new SuppressConstructorDemo();5        System.out.println(scd);6    }7}8import samples.suppressconstructor.SuppressConstructorDemo;9public class SuppressConstructorDemoUser {10    public static void main(String[] args) {11        SuppressConstructorDemo scd = new SuppressConstructorDemo();12        System.out.println(scd);13    }14}15import samples.suppressconstructor.SuppressConstructorDemo;16public class SuppressConstructorDemoUser {17    public static void main(String[] args) {18        SuppressConstructorDemo scd = new SuppressConstructorDemo();19        System.out.println(scd);20    }21}22import samples.suppressconstructor.SuppressConstructorDemo;23public class SuppressConstructorDemoUser {24    public static void main(String[] args) {25        SuppressConstructorDemo scd = new SuppressConstructorDemo();26        System.out.println(scd);27    }28}29import samples.suppressconstructor.SuppressConstructorDemo;30public class SuppressConstructorDemoUser {31    public static void main(String[] args) {32        SuppressConstructorDemo scd = new SuppressConstructorDemo();33        System.out.println(scd);34    }35}36import samples.suppressconstructor.SuppressConstructorDemo;37public class SuppressConstructorDemoUser {38    public static void main(String[] args) {39        SuppressConstructorDemo scd = new SuppressConstructorDemo();40        System.out.println(scd);41    }42}43import samples.suppressconstructor.SuppressConstructorDemo;44public class SuppressConstructorDemoUser {45    public static void main(String[] args) {46        SuppressConstructorDemo scd = new SuppressConstructorDemo();47        System.out.println(scd);48    }49}50import samples.suppressconstructor.SuppressConstructorDemo

SuppressConstructorDemo

Using AI Code Generation

1package samples.suppressconstructor;2import samples.suppressconstructor.SuppressConstructorDemo;3public class SuppressConstructorDemo1 {4    public static void main(String[] args) {5        SuppressConstructorDemo obj = new SuppressConstructorDemo();6        obj.show();7    }8}9package samples.suppressconstructor;10import samples.suppressconstructor.SuppressConstructorDemo;11public class SuppressConstructorDemo2 {12    public static void main(String[] args) {13        SuppressConstructorDemo obj = new SuppressConstructorDemo();14        obj.show();15    }16}17Exception in thread "main" java.lang.NoSuchMethodError: samples.suppressconstructor.SuppressConstructorDemo.<init>()V18    at samples.suppressconstructor.SuppressConstructorDemo1.main(SuppressConstructorDemo1.java:8)19Exception in thread "main" java.lang.NoSuchMethodError: samples.suppressconstructor.SuppressConstructorDemo.<init>()V20    at samples.suppressconstructor.SuppressConstructorDemo2.main(SuppressConstructorDemo2.java:8)

SuppressConstructorDemo

Using AI Code Generation

1import samples.suppressconstructor.*;2{3	public static void main(String[] args)4	{5		SuppressConstructorDemo obj = new SuppressConstructorDemo();6		obj.display();7	}8}9package samples.suppressconstructor;10{11	private String name;12	private int age;13	public SuppressConstructorDemo()14	{15		this.name = "John";16		this.age = 25;17	}18	public void display()19	{20		System.out.println("Name: " + this.name + " Age: " + this.age);21	}22}

SuppressConstructorDemo

Using AI Code Generation

1import samples.suppressconstructor.SuppressConstructorDemo;2{3public static void main(String args[])4{5SuppressConstructorDemo obj=new SuppressConstructorDemo();6}7}8import samples.suppressconstructor.SuppressConstructorDemo;9{10public static void main(String args[])11{12SuppressConstructorDemo obj=new SuppressConstructorDemo();13}14}151.java:5: error: SuppressConstructorDemo() has private access in16SuppressConstructorDemo obj=new SuppressConstructorDemo();172.java:5: error: SuppressConstructorDemo() has private access in18SuppressConstructorDemo obj=new SuppressConstructorDemo();

SuppressConstructorDemo

Using AI Code Generation

1package samples.suppressconstructor;2public class SuppressConstructorDemo {3    public static void main(String[] args) {4        SuppressConstructorDemo obj = new SuppressConstructorDemo();5        System.out.println(obj);6    }7}8Exception in thread "main" java.lang.NoSuchMethodError: samples.suppressconstructor.SuppressConstructorDemo.<init>()V9        at samples.suppressconstructor.SuppressConstructorDemo.main(SuppressConstructorDemo.java:7)10public class samples.suppressconstructor.SuppressConstructorDemo {11  public samples.suppressconstructor.SuppressConstructorDemo();12}13public class samples.suppressconstructor.SuppressConstructorDemo {14  public samples.suppressconstructor.SuppressConstructorDemo();15}16Exception in thread "main" java.lang.NoSuchMethodError: samples.suppressconstructor.SuppressConstructorDemo.<init>()V17        at samples.suppressconstructor.SuppressConstructorDemo.main(SuppressConstructorDemo.java:7)18public class samples.suppressconstructor.SuppressConstructorDemo {19  public samples.suppressconstructor.SuppressConstructorDemo();20}

SuppressConstructorDemo

Using AI Code Generation

1package samples.suppressconstructor;2public class SuppressConstructorDemo {3    public static void main(String[] args) {4        SuppressConstructorDemo obj = new SuppressConstructorDemo();5        System.out.println("Object created");6    }7}8Exception in thread "main" java.lang.NoSuchMethodError: samples.suppressconstructor.SuppressConstructorDemo.<init>()V9        at samples.suppressconstructor.SuppressConstructorDemo.main(1.java:9)

SuppressConstructorDemo

Using AI Code Generation

1package samples.suppressconstructor;2import java.lang.reflect.Constructor;3{4    private SuppressConstructorDemo()5    {6        System.out.println("SuppressConstructorDemo Constructor invoked");7    }8    public static void main(String[] args) throws Exception9    {10        SuppressConstructorDemo demo = new SuppressConstructorDemo();11        Class classObj = demo.getClass();12        Constructor[] cons = classObj.getDeclaredConstructors();13        for (int i = 0; i < cons.length; i++)14        {15            cons[i].setAccessible(true);16            SuppressConstructorDemo demoObj = (SuppressConstructorDemo) cons[i].newInstance();17        }18    }19}

SuppressConstructorDemo

Using AI Code Generation

1package samples.suppressconstructor;2public class SuppressConstructorDemo{3    public SuppressConstructorDemo(){4        System.out.println("This is a constructor of SuppressConstructorDemo class");5    }6}7package samples.suppressconstructor;8public class SuppressConstructorDemo2{9    public SuppressConstructorDemo2(){10        System.out.println("This is a constructor of SuppressConstructorDemo2 class");11    }12}13package samples.suppressconstructor;14public class SuppressConstructorDemo3{15    public SuppressConstructorDemo3(){16        System.out.println("This is a constructor of SuppressConstructorDemo3 class");17    }18}19package samples.suppressconstructor;20public class SuppressConstructorDemo4{21    public SuppressConstructorDemo4(){22        System.out.println("This is a constructor of SuppressConstructorDemo4 class");23    }24}25package samples.suppressconstructor;26public class SuppressConstructorDemo5{27    public SuppressConstructorDemo5(){28        System.out.println("This is a constructor of SuppressConstructorDemo5 class");29    }30}31package samples.suppressconstructor;32public class SuppressConstructorDemo6{33    public SuppressConstructorDemo6(){34        System.out.println("This is a constructor of SuppressConstructorDemo6 class");35    }36}37package samples.suppressconstructor;38public class SuppressConstructorDemo7{39    public SuppressConstructorDemo7(){40        System.out.println("This is a constructor of SuppressConstructorDemo7 class");41    }42}43package samples.suppressconstructor;44public class SuppressConstructorDemo8{45    public SuppressConstructorDemo8(){46        System.out.println("This is a constructor of SuppressConstructorDemo8 class");47    }48}49package samples.suppressconstructor;50public class SuppressConstructorDemo9{51    public SuppressConstructorDemo9(){52        System.out.println("This is a constructor of SuppressConstructorDemo9 class");53    }54}

SuppressConstructorDemo

Using AI Code Generation

1package com.java2novice.suppressconstructor;2import java.lang.reflect.Constructor;3import java.lang.reflect.InvocationTargetException;4import java.lang.reflect.Modifier;5import java.lang.reflect.Type;6import java.util.Arrays;7public class SuppressConstructorDemo {8    public static void main(String a[]){9        Class<SuppressConstructor> clazz = SuppressConstructor.class;10        Constructor[] allConstructors = clazz.getDeclaredConstructors();11        System.out.println("Total constructors: "+allConstructors.length);12        for (Constructor constructor : allConstructors) {13            System.out.println("Constructor name: "+constructor.getName());14            int modifiers = constructor.getModifiers();15            System.out.println("Is public: "+Modifier.isPublic(modifiers));16            System.out.println("Is private: "+Modifier.isPrivate(modifiers));17            System.out.println("Is protected: "+Modifier.isProtected(modifiers));18            System.out.println("Is static: "+Modifier.isStatic(modifiers));19            System.out.println("Is final: "+Modifier.isFinal(modifiers));20            System.out.println("Is abstract: "+Modifier.isAbstract(modifiers));21            System.out.println("Is native: "+Modifier.isNative(modifiers));22            System.out.println("Is strict: "+Modifier.isStrict(modifiers));23            System.out.println("Is synthetic: "+constructor.isSynthetic());24            System.out.println("Parameter types: "+Arrays.toString(constructor.getParameterTypes()));25            System.out.println("Exception types: "+Arrays.toString(constructor.getExceptionTypes()));26            System.out.println("Generic parameter types: "+Arrays.toString(constructor.getGenericParameterTypes()));27            System.out.println("Generic exception types: "+Arrays.toString(constructor.getGenericExceptionTypes()));28            System.out.println("Annotations: "+Arrays.toString(constructor.getAnnotations()));29            System.out.println("Declared annotations: "+Arrays.toString(constructor.getDeclaredAnnotations()));30            System.out.println("Annotated parameter types: "+Arrays.toString(constructor.getAnnotatedParameterTypes()));31            System.out.println("Annotated exception types: "+Arrays.toString(constructor.getAnnotatedExceptionTypes()));32            System.out.println("Annotated generic parameter types: "+Arrays.toString(constructor.getAnnotatedGenericParameterTypes()));33            System.out.println("Annotated generic exception types: "+Arrays.toString(constructor.getAnnotatedGenericExceptionTypes()));34            System.out.println("Declaring class: "+constructor.getDeclaringClass());35            System.out.println("Declaring class name: "+constructor.getDeclaringClass().getName());36            System.out.println("Declaring class simple name: "+constructor

SuppressConstructorDemo

Using AI Code Generation

1package samples.suppressconstructor;2public class SuppressConstructorDemo {3private SuppressConstructorDemo() {4}5public static void main(String args[]) {6System.out.println("Hello World");7}8}

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