How to use assertNull method of junit.framework.TestCase class

...110    final org.apache.sling.serviceusermapping.Mapping mapping = new org.apache.sling.serviceusermapping.Mapping(spec.toString());111    junit.framework.TestCase.assertEquals(serviceName, getField(mapping, "serviceName"));112    junit.framework.TestCase.assertEquals(subServiceName, getField(mapping, "subServiceName"));113    if (expectedUserName == null) {114        junit.framework.TestCase.assertNull(getField(mapping, "userName"));115    } else {116        junit.framework.TestCase.assertEquals(expectedUserName, getField(mapping, "userName"));117    }118    if (principalNames == null) {119        junit.framework.TestCase.assertNull(getSetField(mapping, "principalNames"));120    } else {121        junit.framework.TestCase.assertEquals(expectedPrincipalsNames, getSetField(mapping, "principalNames"));122    }123    // mapping124    if (expectedUserName == null) {125        junit.framework.TestCase.assertNull(mapping.map(serviceName, subServiceName));126    } else {127        junit.framework.TestCase.assertEquals(userName, mapping.map(serviceName, subServiceName));128    }129    if (expectedPrincipalsNames == null) {130        junit.framework.TestCase.assertNull(mapping.mapPrincipals(serviceName, subServiceName));131    } else {132        junit.framework.TestCase.assertEquals(expectedPrincipalsNames, mapping.mapPrincipals(serviceName, subServiceName));133    }134    if (subServiceName == null) {135        // Mapping without subServiceName must not match request with any136        // subServiceName137        junit.framework.TestCase.assertNull(mapping.map(serviceName, subServiceName + "-garbage"));138        junit.framework.TestCase.assertNull(mapping.mapPrincipals(serviceName, subServiceName + "-garbage"));139    } else {140        // Mapping with subServiceName must not match request without141        // subServiceName142        junit.framework.TestCase.assertNull(mapping.map(serviceName, null));143        junit.framework.TestCase.assertNull(mapping.mapPrincipals(serviceName, null));144    }145    // no match for different service name146    junit.framework.TestCase.assertNull(mapping.map(serviceName + "-garbage", subServiceName));147    junit.framework.TestCase.assertNull(mapping.mapPrincipals(serviceName + "-garbage", subServiceName));148    // no match for null service name149    junit.framework.TestCase.assertNull(mapping.map(null, subServiceName));150    junit.framework.TestCase.assertNull(mapping.mapPrincipals(null, subServiceName));151}152    private String getField(final Object object, final String fieldName) {153        try {154            Field f = object.getClass().getDeclaredField(fieldName);155            f.setAccessible(true);156            return (String) f.get(object);157        } catch (Exception e) {158            TestCase.fail("Cannot get field " + fieldName + ": " + e.toString());159            return null; // will not get here, quiesce compiler160        }161    }162    private Set<String> getSetField(final Object object, final String fieldName) {163        try {164            Field f = object.getClass().getDeclaredField(fieldName);...

...10import org.junit.Test;11import static junit.framework.TestCase.assertEquals;12import static junit.framework.TestCase.assertFalse;13import static junit.framework.TestCase.assertNotNull;14import static junit.framework.TestCase.assertNull;15import static junit.framework.TestCase.assertTrue;16/**17 * <p>Integration tests for the debug-related operations on the Vault HTTP API's.</p>18 */19public class DebugTests {20    @ClassRule21    public static final VaultContainer container = new VaultContainer();22    private Vault vault;23    @BeforeClass24    public static void setupClass() throws IOException, InterruptedException {25        container.initAndUnsealVault();26    }27    @Before28    public void setup() throws VaultException {29        vault = container.getRootVault();30    }31    @Test32    public void testHealth_Plain() throws VaultException {33        final HealthResponse response = vault.debug().health();34        assertTrue(response.getInitialized());35        assertFalse(response.getSealed());36        assertFalse(response.getStandby());37        assertNotNull(response.getServerTimeUTC());38        assertEquals(200, response.getRestResponse().getStatus());39    }40    @Test41    public void testHealth_WithParams() throws VaultException {42        final HealthResponse response = vault.debug().health(null, 212, null, null);43        assertTrue(response.getInitialized());44        assertFalse(response.getSealed());45        assertFalse(response.getStandby());46        assertNotNull(response.getServerTimeUTC());47        assertEquals(212, response.getRestResponse().getStatus());48    }49    /**50     * <p>Altering the default HTTP status codes with optional parameters can cause Vault to return an empty JSON51     * payload, depending on which replacement HTTP status code you specify.</p>52     *53     * <p>For example... Vault still returns a valid JSON payload when you change activeCode to 212 (see test above),54     * but returns an empty payload when you set it to use 204.</p>55     *56     * @throws VaultException57     */58    @Test59    public void testHealth_WonkyActiveCode() throws VaultException {60        final HealthResponse response = vault.debug().health(null, 204, null,61                null);62        assertNull(response.getInitialized());63        assertNull(response.getSealed());64        assertNull(response.getStandby());65        assertNull(response.getServerTimeUTC());66        assertEquals(204, response.getRestResponse().getStatus());67    }68}...

1package dockerController;2import static junit.framework.TestCase.assertNotNull;3import static junit.framework.TestCase.assertNull;4import static junit.framework.TestCase.assertTrue;5import org.junit.Test;6/**7 *8 * @author cicciog9 */10public class TestDockerImageBuild {11    DockerImageBuild dockerImageBuild = new DockerImageBuild();12    String name = "nginx";13    String buildCommand = "sudo docker build -t ningx .";14    int numberOfExecution = 10;15    String buildable = "true";16    @Test17    public void testAdd() {18        //check for not null value19        assertNotNull(dockerImageBuild);20        //check for null value21        assertNull(dockerImageBuild.getName());22        //check for null value23        assertNull(dockerImageBuild.getBuildCommand());24        //check for null value25        assertNull(dockerImageBuild.getNumberOfExecution());26        //check for null value27        assertNull(dockerImageBuild.getBuildable());28        //check for null value29        assertNull(dockerImageBuild.getAverage());30        //check for null value31        assertNull(dockerImageBuild.getBuild());32        dockerImageBuild.setName(name);33        //check for not null value34        assertNotNull(dockerImageBuild.getName());35        //test getName length method36        assertTrue(dockerImageBuild.getName().length() > 0);37        dockerImageBuild.setBuildCommand(buildCommand);38        //check for not null value39        assertNotNull(dockerImageBuild.getBuildCommand());40        //test getBuildCommand length method41        assertTrue(dockerImageBuild.getBuildCommand().length() > 0);42        dockerImageBuild.setNumberOfExecution(Integer.toString(numberOfExecution));43        //check for not null value44        assertNotNull(dockerImageBuild.getNumberOfExecution());45        //test getNumberOfExecution length method...

...23        a.setZip("20171");24        a.setCity("Herndon");25        a.setStreet("Sunrise Valley Dr");26        a.clear();27        assertNull(a.getStreet());28        assertNull(a.getCity());29        assertNull(a.getState());30        assertNull(a.getZip());31        assertNull(a.getCountry());32    }33    public void testSync(){34        Address a = new Address();35        a.setCountry("US");36        a.setState("VA");37        a.setZip("20171");38        a.setCity("Herndon");39        a.setStreet("Sunrise Valley Dr");40        Address a2 = new Address();41        a2.setCountry("IN");42        a2.setState("Kerala");43        a2.setZip("688013");44        a2.setCity("Alappuzha");45        a2.setStreet("Thathampally");46        a2.sync(a);47        assertEquals("US", a2.getCountry());48        assertEquals("VA", a2.getState());49        assertEquals("20171", a2.getZip());50        assertEquals("Herndon", a2.getCity());51        assertEquals("Sunrise Valley Dr", a2.getStreet());52        a2.sync(null);53        assertNull(a2.getStreet());54        assertNull(a2.getCity());55        assertNull(a2.getState());56        assertNull(a2.getZip());57        assertNull(a2.getCountry());58    }59}...

...49  /**50   * Test method for {@link org.melati.poem.util.CachedIndexFactory#get(int)}.51   */52  public void testGet() {53    assertNull(it.get(3)); // Really get it - it is null54    assertNull(it.get(3)); // Get it from cache - it is null55    it.invalidate(3);56    assertNull(it.get(3)); // Really get it - it is null    57  }58  /**59   * Test method for {@link org.melati.poem.util.CachedIndexFactory#invalidate(int)}.60   */61  public void testInvalidateInt() {62    63  }64  /**65   * Test method for {@link org.melati.poem.util.CachedIndexFactory#invalidate()}.66   */67  public void testInvalidate() {68    69  }70}...

1package com.team11.ditto;2import static junit.framework.TestCase.assertEquals;3import static junit.framework.TestCase.assertNotNull;4import static junit.framework.TestCase.assertNull;5import static junit.framework.TestCase.assertTrue;6import com.team11.ditto.profile_details.User;7import org.junit.Test;8/**9 * Tests for the User Class functionalities10 * @author Courtenay Laing-Kobe11 */12public class UserUnitTests {13    @Test14    /**15     * Creates a sample User for testing16     * @return sample User17     */18    public User mockUser(){19        User user = new User("universalwonder", "notAPassword", 26);20        return user;21    }22    @Test23    /**24     * Tests User constructor25     */26    public void testUserInitialization(){27        User courtenay = mockUser();28        assertEquals(courtenay.getUsername(), "universalwonder");29        assertEquals(courtenay.getPassword(), "notAPassword");30        assertNull(courtenay.getID());31        assertNotNull(courtenay.getFollowMe());32        assertNotNull(courtenay.getIFollow());33        assertNotNull(courtenay.getHabits());34        assertNotNull(courtenay.getProfilePhoto());35    }36    @Test37    /**38     * Test changing User attributes39     */40    public void testUserSetters(){41    }42}...

1package org.onosproject.store.consistent.impl;2import static junit.framework.TestCase.assertEquals;3import static junit.framework.TestCase.assertFalse;4import static junit.framework.TestCase.assertNull;5import static junit.framework.TestCase.assertTrue;6import org.junit.Test;7/**8 * Unit tests for Result.9 */10public class ResultTest {11    @Test12    public void testLocked() {13        Result<String> r = Result.locked();14        assertFalse(r.success());15        assertNull(r.value());16        assertEquals(Result.Status.LOCKED, r.status());17    }18    @Test19    public void testOk() {20        Result<String> r = Result.ok("foo");21        assertTrue(r.success());22        assertEquals("foo", r.value());23        assertEquals(Result.Status.OK, r.status());24    }25    @Test26    public void testEquality() {27        Result<String> r1 = Result.ok("foo");28        Result<String> r2 = Result.locked();29        Result<String> r3 = Result.ok("bar");...

1package gitCloner;2import junit.framework.TestCase;3import static junit.framework.TestCase.assertEquals;4import static junit.framework.TestCase.assertNotNull;5import static junit.framework.TestCase.assertNull;6import org.junit.Test;7/**8 *9 * @author cicciog10 */11public class TestRepository {12    //test data13    Repository repository = new Repository();14    String link = "/home/Documenti/repositories/";15    String name = "repos";16    @Test17    public void testAdd() {18        //check for not null value19        assertNotNull(repository);20        //test setLink method21        assertNull(repository.getLink());22        repository.setLink(link);23        assertEquals(link, repository.getLink());24        //test setName method25        assertNull(repository.getName());26        repository.setName(name);27        assertEquals(name, repository.getName());28    }29}...

1import static org.junit.Assert.assertNull;2import org.junit.Test;3public class TestJunit1 {4   String message = "Robert";	5   MessageUtil messageUtil = new MessageUtil(message);6   public void testPrintMessage() {	7      System.out.println("Inside testPrintMessage()");    8      assertNull(messageUtil.printMessage());9   }10}11Inside testPrintMessage()12OK (1 test)13package com.journaldev.junit;14import org.junit.Test;15import org.junit.Ignore;16import static org.junit.Assert.assertEquals;17public class TestJunit2 {18   String message = "Robert";	19   MessageUtil messageUtil = new MessageUtil(message);20   @Test(expected = ArithmeticException.class)21   public void testPrintMessage() {	22      System.out.println("Inside testPrintMessage()");    23      messageUtil.printMessage();24   }25}26Inside testPrintMessage()27OK (1 test)28package com.journaldev.junit;29import org.junit.Test;30import org.junit.Ignore;31import static org.junit.Assert.assertEquals;32public class TestJunit3 {33   String message = "Robert";	34   MessageUtil messageUtil = new MessageUtil(message);35   public void testPrintMessage() {	36      System.out.println("Inside testPrintMessage()");    37      assertEquals(message,messageUtil.printMessage());38   }39   public void testSalutationMessage() {40      System.out.println("Inside testSalutationMessage()");41      message = "Hi!" + "Robert";42      assertEquals(message,messageUtil.salutationMessage());43   }44}45Inside testPrintMessage()46OK (1 test)

1import junit.framework.TestCase;2public class AssertNullExample extends TestCase {3  public void testAssertNull() {4    String str1 = "Junit";5    String str2 = null;6    String str3 = "Junit";7    String str4 = null;8    assertNull(str1);9    assertNull(str2);10    assertNull("failure - strings are not null", str3);11    assertNull("failure - strings are not null", str4);12  }13}14	at junit.framework.Assert.fail(Assert.java:47)15	at junit.framework.Assert.assertTrue(Assert.java:20)16	at junit.framework.Assert.assertNull(Assert.java:233)17	at junit.framework.Assert.assertNull(Assert.java:229)18	at AssertNullExample.testAssertNull(AssertNullExample.java:16)19	at junit.framework.TestCase.runTest(TestCase.java:154)20	at junit.framework.TestCase.runBare(TestCase.java:127)21	at junit.framework.TestResult$1.protect(TestResult.java:106)22	at junit.framework.TestResult.runProtected(TestResult.java:124)23	at junit.framework.TestResult.run(TestResult.java:109)24	at junit.framework.TestCase.run(TestCase.java:118)25	at junit.framework.TestSuite.runTest(TestSuite.java:208)26	at junit.framework.TestSuite.run(TestSuite.java:203)27	at org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:86)28	at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)29	at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)30	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)31	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)32	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)33	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)34	at junit.framework.Assert.fail(Assert.java:47)35	at junit.framework.Assert.assertTrue(Assert.java:20)36	at junit.framework.Assert.assertNull(Assert.java:233)37	at junit.framework.Assert.assertNull(Assert.java:229)38	at AssertNullExample.testAssertNull(AssertNullExample.java:17)

1import junit.framework.TestCase;2public class TestAssertNull extends TestCase {3   protected Object val;4   protected void setUp(){5      val = new Object();6   }7   public void testAssertNull() {8      assertNull("val is not null", val);9   }10}

1import static org.junit.Assert.*;2import org.junit.Test;3public class TestClass {4   public void test() {5      String str = "Junit is working fine";6      assertNull("string is not null", str);7   }8}9JUnit Test Case with assertNull() method10JUnit Test Case with assertNotNull() method11assertNotNull(object);12import static org.junit.Assert.*;13import org.junit.Test;14public class TestClass {15   public void test() {16      String str = "Junit is working fine";17      assertNotNull("string is null", str);18   }19}20JUnit Test Case with assertNotNull() method21JUnit Test Case with assertSame() method22assertSame(expected, actual);23import static org.junit.Assert.*;24import org.junit.Test;25public class TestClass {26   public void test() {27      String str1 = "Junit";28      String str2 = "Junit";29      assertSame(str1, str2);30   }31}32JUnit Test Case with assertSame() method33JUnit Test Case with assertNotSame() method34assertNotSame(expected, actual);35import static org.junit.Assert.*;36import org

1import org.junit.Test;2import static org.junit.Assert.*;3public class JUnit4Test {4   public void testAssertNull() {5      String str = "Not Null";6      assertNull("String should be null", str);7   }8}9	at org.junit.Assert.fail(Assert.java:88)10	at org.junit.Assert.assertTrue(Assert.java:41)11	at org.junit.Assert.assertNull(Assert.java:617)12	at org.junit.Assert.assertNull(Assert.java:602)13	at JUnit4Test.testAssertNull(JUnit4Test.java:11)14	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)15	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)16	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)17	at java.lang.reflect.Method.invoke(Method.java:606)18	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)19	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)20	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)21	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)22	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)23	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:76)24	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)25	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)26	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)27	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)28	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)29	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)30	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)

1import org.junit.Test;2import static org.junit.Assert.*;3public class TestAssertNull {4   public void testAssertNull() {5      String str1 = "Junit is working fine";6      String str2 = null;7      System.out.println("TestAssertNull -> testAssertNull()");8      assertNull("str1 is not null", str1);9      assertNull("str2 is not null", str2);10   }11}12TestAssertNull -> testAssertNull()13	at org.junit.Assert.fail(Assert.java:88)14	at org.junit.Assert.assertTrue(Assert.java:41)15	at org.junit.Assert.assertNull(Assert.java:619)16	at org.junit.Assert.assertNull(Assert.java:630)17	at TestAssertNull.testAssertNull(TestAssertNull.java:16)18	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)19	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)20	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)21	at java.lang.reflect.Method.invoke(Method.java:606)22	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)23	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)24	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)25	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)26	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)27	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)28	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)29	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)30	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)31	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)32	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)33	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)34	at org.junit.runners.ParentRunner.run(ParentRunner.java:363)35	at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86)