How to use nullValue method of org.hamcrest.core.IsNull class

Best junit code snippet using org.hamcrest.core.IsNull.nullValue

Source:HamcrestNullAssertions.java Github

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...4import static org.hamcrest.MatcherAssert.assertThat;5class HamcrestNullAssertions {6 @Nested7 class Null {8 private final Object nullValue = null;9 @Test10 void test_nullValue() {11 assertThat(nullValue, org.hamcrest.CoreMatchers.nullValue());12 assertThat(nullValue, org.hamcrest.CoreMatchers.nullValue(Object.class));13 assertThat(nullValue, org.hamcrest.core.IsNull.nullValue());14 assertThat(nullValue, org.hamcrest.core.IsNull.nullValue(Object.class));15 assertThat(nullValue, org.hamcrest.Matchers.nullValue());16 assertThat(nullValue, org.hamcrest.Matchers.nullValue(Object.class));17 }18 @Test19 void test_nullValue_with_reason() {20 assertThat("reason", nullValue, org.hamcrest.CoreMatchers.nullValue());21 assertThat("reason", nullValue, org.hamcrest.CoreMatchers.nullValue(Object.class));22 assertThat("reason", nullValue, org.hamcrest.core.IsNull.nullValue());23 assertThat("reason", nullValue, org.hamcrest.core.IsNull.nullValue(Object.class));24 assertThat("reason", nullValue, org.hamcrest.Matchers.nullValue());25 assertThat("reason", nullValue, org.hamcrest.Matchers.nullValue(Object.class));26 }27 @Test28 void test_isNullValue() {29 assertThat(nullValue, org.hamcrest.CoreMatchers.is(org.hamcrest.CoreMatchers.nullValue()));30 assertThat(nullValue, org.hamcrest.CoreMatchers.is(org.hamcrest.CoreMatchers.nullValue(Object.class)));31 assertThat(nullValue, org.hamcrest.CoreMatchers.is(org.hamcrest.core.IsNull.nullValue()));32 assertThat(nullValue, org.hamcrest.CoreMatchers.is(org.hamcrest.core.IsNull.nullValue(Object.class)));33 assertThat(nullValue, org.hamcrest.CoreMatchers.is(org.hamcrest.Matchers.nullValue()));34 assertThat(nullValue, org.hamcrest.CoreMatchers.is(org.hamcrest.Matchers.nullValue(Object.class)));35 assertThat(nullValue, org.hamcrest.core.Is.is(org.hamcrest.CoreMatchers.nullValue()));36 assertThat(nullValue, org.hamcrest.core.Is.is(org.hamcrest.CoreMatchers.nullValue(Object.class)));37 assertThat(nullValue, org.hamcrest.core.Is.is(org.hamcrest.core.IsNull.nullValue()));38 assertThat(nullValue, org.hamcrest.core.Is.is(org.hamcrest.core.IsNull.nullValue(Object.class)));39 assertThat(nullValue, org.hamcrest.core.Is.is(org.hamcrest.Matchers.nullValue()));40 assertThat(nullValue, org.hamcrest.core.Is.is(org.hamcrest.Matchers.nullValue(Object.class)));41 assertThat(nullValue, org.hamcrest.Matchers.is(org.hamcrest.CoreMatchers.nullValue()));42 assertThat(nullValue, org.hamcrest.Matchers.is(org.hamcrest.CoreMatchers.nullValue(Object.class)));43 assertThat(nullValue, org.hamcrest.Matchers.is(org.hamcrest.core.IsNull.nullValue()));44 assertThat(nullValue, org.hamcrest.Matchers.is(org.hamcrest.core.IsNull.nullValue(Object.class)));45 assertThat(nullValue, org.hamcrest.Matchers.is(org.hamcrest.Matchers.nullValue()));46 assertThat(nullValue, org.hamcrest.Matchers.is(org.hamcrest.Matchers.nullValue(Object.class)));47 }48 @Test49 void test_isNullValue_with_reason() {50 assertThat("reason", nullValue, org.hamcrest.CoreMatchers.is(org.hamcrest.CoreMatchers.nullValue()));51 assertThat("reason", nullValue, org.hamcrest.CoreMatchers.is(org.hamcrest.CoreMatchers.nullValue(Object.class)));52 assertThat("reason", nullValue, org.hamcrest.CoreMatchers.is(org.hamcrest.core.IsNull.nullValue()));53 assertThat("reason", nullValue, org.hamcrest.CoreMatchers.is(org.hamcrest.core.IsNull.nullValue(Object.class)));54 assertThat("reason", nullValue, org.hamcrest.CoreMatchers.is(org.hamcrest.Matchers.nullValue()));55 assertThat("reason", nullValue, org.hamcrest.CoreMatchers.is(org.hamcrest.Matchers.nullValue(Object.class)));56 assertThat("reason", nullValue, org.hamcrest.core.Is.is(org.hamcrest.CoreMatchers.nullValue()));57 assertThat("reason", nullValue, org.hamcrest.core.Is.is(org.hamcrest.CoreMatchers.nullValue(Object.class)));58 assertThat("reason", nullValue, org.hamcrest.core.Is.is(org.hamcrest.core.IsNull.nullValue()));59 assertThat("reason", nullValue, org.hamcrest.core.Is.is(org.hamcrest.core.IsNull.nullValue(Object.class)));60 assertThat("reason", nullValue, org.hamcrest.core.Is.is(org.hamcrest.Matchers.nullValue()));61 assertThat("reason", nullValue, org.hamcrest.core.Is.is(org.hamcrest.Matchers.nullValue(Object.class)));62 assertThat("reason", nullValue, org.hamcrest.Matchers.is(org.hamcrest.CoreMatchers.nullValue()));63 assertThat("reason", nullValue, org.hamcrest.Matchers.is(org.hamcrest.CoreMatchers.nullValue(Object.class)));64 assertThat("reason", nullValue, org.hamcrest.Matchers.is(org.hamcrest.core.IsNull.nullValue()));65 assertThat("reason", nullValue, org.hamcrest.Matchers.is(org.hamcrest.core.IsNull.nullValue(Object.class)));66 assertThat("reason", nullValue, org.hamcrest.Matchers.is(org.hamcrest.Matchers.nullValue()));67 assertThat("reason", nullValue, org.hamcrest.Matchers.is(org.hamcrest.Matchers.nullValue(Object.class)));68 }69 }70 @Nested71 class NotNull {72 private final Object notNullValue = new Object();73 @Test74 void test_notNullValue() {75 assertThat(notNullValue, org.hamcrest.CoreMatchers.notNullValue());76 assertThat(notNullValue, org.hamcrest.CoreMatchers.notNullValue(Object.class));77 assertThat(notNullValue, org.hamcrest.core.IsNull.notNullValue());78 assertThat(notNullValue, org.hamcrest.core.IsNull.notNullValue(Object.class));79 assertThat(notNullValue, org.hamcrest.Matchers.notNullValue());80 assertThat(notNullValue, org.hamcrest.Matchers.notNullValue(Object.class));81 }...

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Source:CoreMatchers.java Github

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...98 }99 public static <T> Matcher<T> notNullValue(Class<T> type) {100 return IsNull.notNullValue(type);101 }102 public static Matcher<Object> nullValue() {103 return IsNull.nullValue();104 }105 public static <T> Matcher<T> nullValue(Class<T> type) {106 return IsNull.nullValue(type);107 }108 public static <T> Matcher<T> sameInstance(T target) {109 return IsSame.sameInstance(target);110 }111 public static <T> Matcher<T> theInstance(T target) {112 return IsSame.theInstance(target);113 }114 public static Matcher<String> containsString(String substring) {115 return StringContains.containsString(substring);116 }117 public static Matcher<String> containsStringIgnoringCase(String substring) {118 return StringContains.containsStringIgnoringCase(substring);119 }120 public static Matcher<String> startsWith(String prefix) {...

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Source:IsNullTest.java Github

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...3package org.hamcrest.core;4import static org.hamcrest.MatcherAssert.assertThat;5import static org.hamcrest.core.IsNot.not;6import static org.hamcrest.core.IsNull.notNullValue;7import static org.hamcrest.core.IsNull.nullValue;8import java.math.BigDecimal;9import org.hamcrest.AbstractMatcherTest;10import org.hamcrest.Matcher;11public class IsNullTest extends AbstractMatcherTest {12 private static final BigDecimal ANY_NON_NULL_ARGUMENT = new BigDecimal(66);13 @Override14 protected Matcher<?> createMatcher() {15 return nullValue();16 }17 public void testEvaluatesToTrueIfArgumentIsNull() {18 assertThat(null, nullValue());19 assertThat(ANY_NON_NULL_ARGUMENT, not(nullValue()));20 assertThat(ANY_NON_NULL_ARGUMENT, notNullValue());21 assertThat(null, not(notNullValue()));22 }23 public void testSupportsStaticTyping() {24 requiresStringMatcher(nullValue(String.class));25 requiresStringMatcher(notNullValue(String.class));26 }27 private void requiresStringMatcher(@SuppressWarnings("unused") Matcher<String> arg) {28 // no-op29 } 30}...

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nullValue

Using AI Code Generation

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1assertThat(null, is(nullValue()));2assertThat("not null", is(notNullValue()));3assertThat(null, is(nullValue()));4assertThat("not null", is(notNullValue()));5assertThat(null, is(nullValue()));6assertThat("not null", is(notNullValue()));7assertThat(null, is(nullValue()));8assertThat("not null", is(notNullValue()));9assertThat(null, is(nullValue()));10assertThat("not null", is(notNullValue()));11assertThat(null, is(nullValue()));12assertThat("not null", is(notNullValue()));13assertThat(null, is(nullValue()));14assertThat("not null", is(notNullValue()));15assertThat(null, is(nullValue()));16assertThat("not null", is(notNullValue()));17assertThat(null, is(nullValue()));18assertThat("not null", is(notNullValue()));19assertThat(null, is(nullValue()));20assertThat("not null", is(notNullValue()));21assertThat(null, is(nullValue()));

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nullValue

Using AI Code Generation

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1assertThat(null, nullValue());2assertThat("not null", notNullValue());3import static org.hamcrest.core.IsNull.nullValue;4import static org.hamcrest.core.IsNull.notNullValue;5import static org.hamcrest.MatcherAssert.assertThat;6import org.junit.Test;7public class IsNullTest {8 public void testIsNull() {9 assertThat(null, nullValue());10 }11 public void testIsNotNull() {12 assertThat("not null", notNullValue());13 }14}15 at org.junit.Assert.assertEquals(Assert.java:115)16 at org.junit.Assert.assertEquals(Assert.java:144)17 at com.journaldev.junit.hamcrest.IsNullTest.testIsNull(IsNullTest.java:17)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:44)23 at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)24 at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)25 at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)26 at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)27 at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263)28 at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:68)29 at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:47)30 at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231)31 at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60)32 at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229)33 at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50)34 at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222)35 at org.junit.runners.ParentRunner.run(ParentRunner.java:292)36 at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(J

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nullValue

Using AI Code Generation

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1assertThat(1, is(nullValue()));2assertThat(null, is(nullValue()));3assertThat(1, is(nullValue()));4assertThat(null, is(nullValue()));5assertThat(1, is(notNullValue()));6assertThat(null, is(notNullValue()));7assertThat(1, is(notNullValue()));8assertThat(null, is(notNullValue()));9assertThat(1, is(not(2)));10assertThat(null, is(not(1)));11assertThat(1, is(not(2)));12assertThat(null, is(not(1)));13assertThat("Hello World", allOf(startsWith("Hello"), endsWith("World")));14assertThat("Hello World", allOf(startsWith("Hello"), endsWith("World")));15assertThat("Hello World", containsString("Hello"));16assertThat("Hello World", containsString("Hello"));17assertThat("Hello World", containsString("Hello"));18assertThat("Hello World", containsString("Hello"));19assertThat("Hello World", containsString("Hello

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nullValue

Using AI Code Generation

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1assertThat(null, is(nullValue()))2assertThat("test", is(equalTo("test")))3assertThat("test", is("test"))4assertThat("test", isA(String.class))5assertThat("test", anything())6assertThat("test", anything("test"))7assertThat("test", anything(String.class))8assertThat("test", anything(String.class, "test"))9assertThat("test", anything(String.class, "test", "test"))10assertThat(null, is(nullValue()))11assertThat("test", is(equalTo("test")))12assertThat("test", is("test"))13assertThat("test", isA(String.class))14assertThat("test", anything())15assertThat("test", anything("test"))16assertThat("test", anything(String.class))17assertThat("test", anything(String.class, "test"))18assertThat("test", anything(String.class, "test", "test"))

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nullValue

Using AI Code Generation

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1assertThat(“”, nullValue());2assertThat(null, nullValue());3assertThat(“”, not(nullValue()));4assertThat(null, not(nullValue()));5assertThat(“”, notNullValue());6assertThat(null, notNullValue());7assertThat(“”, not(notNullValue()));8assertThat(null, not(notNullValue()));9assertThat(“”, not(not(notNullValue())));10assertThat(null, not(not(notNullValue())));11assertThat(“”, nullValue());12assertThat(null, nullValue());13assertThat(“”, not(nullValue()));14assertThat(null, not(nullValue()));15assertThat(“”, notNullValue());16assertThat(null, notNullValue());17assertThat(“”, not(notNullValue()));18assertThat(null, not(notNullValue()));19assertThat(“”, not(not(notNullValue())));20assertThat(null, not(not(notNullValue())));21assertThat(“”, nullValue());22assertThat(null, nullValue());23assertThat(“”, not(nullValue()));24assertThat(null, not(nullValue()));25assertThat(“”, notNullValue());26assertThat(null, notNullValue());27assertThat(“”, not(notNullValue()));28assertThat(null, not(notNullValue()));29assertThat(“”, not(not(notNullValue())));30assertThat(null, not(not(notNullValue())));31assertThat(“”, nullValue());32assertThat(null, nullValue());33assertThat(“”, not(nullValue()));34assertThat(null, not(nullValue()));35assertThat(“”, notNullValue());36assertThat(null, notNullValue());37assertThat(“”, not(notNullValue()));38assertThat(null, not(notNullValue()));39assertThat(“”, not(not(notNullValue())));40assertThat(null, not(not(notNullValue())));41assertThat(“”, nullValue());42assertThat(null, nullValue());43assertThat(

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nullValue

Using AI Code Generation

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1import static org.hamcrest.core.IsNull.nullValue;2import static org.hamcrest.MatcherAssert.assertThat;3import org.junit.Test;4public class IsNullExample {5public void testIsNull() {6assertThat("abc",nullValue());7}8}9Let’s see another example of isNull() method of IsNull class:10Example 2: Using isNull() method of IsNull class11package com.journaldev.junit.hamcrest;12import static org.hamcrest.core.IsNull.nullValue;13import static org.hamcrest.MatcherAssert.assertThat;14import org.junit.Test;15public class IsNullExample2 {16public void testIsNull() {17assertThat(null,nullValue());18}19}20Let’s see another example of isNull() method of IsNull class:21Example 3: Using isNull() method of IsNull class22package com.journaldev.junit.hamcrest;23import static org.hamcrest.core.IsNull.nullValue;24import static org.hamcrest.MatcherAssert.assertThat;25import org.junit.Test;26public class IsNullExample3 {27public void testIsNull() {28assertThat(nullValue(),nullValue());29}30}31Let’s see another example of isNull() method of IsNull class:32Example 4: Using isNull() method of IsNull class33package com.journaldev.junit.hamcrest;34import static org.hamcrest.core.IsNull.nullValue;35import static org.hamcrest.MatcherAssert.assertThat;36import org.junit.Test;37public class IsNullExample4 {38public void testIsNull() {39assertThat(nullValue(),null);40}41}42Let’s see another example of isNull() method of IsNull class:43Example 5: Using isNull() method of IsNull class44package com.journaldev.junit.hamcrest;45import static org.hamcrest.core.IsNull.nullValue;46import static org.hamcrest.MatcherAssert.assertThat;47import org.junit.Test;48public class IsNullExample5 {49public void testIsNull() {50assertThat(null,null);51}52}

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nullValue

Using AI Code Generation

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1assertThat(null, is(nullValue()));2assertThat(null, nullValue());3assertThat("Hello", is(notNullValue()));4assertThat("Hello", notNullValue());5assertThat("Hello", is(sameInstance("Hello")));6assertThat("Hello", sameInstance("Hello"));7assertThat("Hello", is(not("Hi")));8assertThat("Hello", not("Hi"));9assertThat("Hello", is(equalTo("Hello")));10assertThat("Hello", equalTo("Hello"));11assertThat("Hello", is(equalToIgnoringCase("hello")));12assertThat("Hello", equalToIgnoringCase("hello"));13assertThat("Hello", is(equalToIgnoringWhiteSpace("Hello ")));

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nullValue

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1assertThat(null, nullValue());2assertThat("not null", nullValue());3assertThat(null, notNullValue());4assertThat("not null", notNullValue());5assertThat("not null", not(nullValue()));6assertThat(null, not(nullValue()));7assertThat(null, is(nullValue()));8assertThat("not null", is(nullValue()));9assertThat("not null", is(notNullValue()));10assertThat(null, is(notNullValue()));11assertThat(null, is(not(nullValue())));12assertThat("not null", is(not(nullValue())));13assertThat("not null", is(not(nullValue())));14assertThat(null, is(not(nullValue())));15assertThat(null, is(not(nullValue())));16assertThat("not null", is(not(nullValue())));17assertThat("not null", is(not(nullValue())));18assertThat(null, is(not(nullValue())));19assertThat(null, is(not(nullValue())));20assertThat("not null", is(not(nullValue())));21assertThat("not null", is(not(nullValue())));22assertThat(null, is(not(nullValue())));23assertThat(null, is(not(nullValue())));24assertThat("not null", is(not(nullValue())));25assertThat("not null", is(not(nullValue())));

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