How to use theInstance method of org.hamcrest.core.IsSame class

Best junit code snippet using org.hamcrest.core.IsSame.theInstance

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...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) {121 return StringStartsWith.startsWith(prefix);122 }123 public static Matcher<String> startsWithIgnoringCase(String prefix) {124 return StringStartsWith.startsWithIgnoringCase(prefix);125 }126 public static Matcher<String> endsWith(String suffix) {...

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1/​* Copyright (c) 2000-2006 hamcrest.org2 */​3package org.hamcrest.core;45import static org.hamcrest.core.IsSame.theInstance;6import static org.hamcrest.core.IsSame.sameInstance;7import static org.hamcrest.core.IsNot.not;8import org.hamcrest.AbstractMatcherTest;9import org.hamcrest.Matcher;10import static org.hamcrest.MatcherAssert.assertThat;111213public class IsSameTest extends AbstractMatcherTest {1415 @Override16 protected Matcher<?> createMatcher() {17 return sameInstance("irrelevant");18 }1920 public void testEvaluatesToTrueIfArgumentIsReferenceToASpecifiedObject() {21 Object o1 = new Object();22 Object o2 = new Object();2324 assertThat(o1, sameInstance(o1));25 assertThat(o2, not(sameInstance(o1)));26 }2728 public void testAlternativeFactoryMethodAlsoMatchesOnlyIfArgumentIsReferenceToASpecifiedObject() {29 Object o1 = new Object();30 Object o2 = new Object();31 32 assertThat(o1, theInstance(o1));33 assertThat(o2, not(theInstance(o1)));34 }3536 public void testReturnsReadableDescriptionFromToString() {37 assertDescription("sameInstance(\"ARG\")", sameInstance("ARG"));38 }3940 public void testReturnsReadableDescriptionFromToStringWhenInitialisedWithNull() {41 assertDescription("sameInstance(null)", sameInstance(null));42 }43} ...

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theInstance

Using AI Code Generation

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1import org.hamcrest.core.IsSame2def theInstance = IsSame.theInstance('instance')3assert theInstance.matches('instance')4assert !theInstance.matches('other')5import org.hamcrest.core.IsSame6def theInstance = IsSame.theInstance('instance')7assert theInstance.matches('instance')8assert !theInstance.matches('other')9import org.hamcrest.core.IsSame10def theInstance = IsSame.theInstance('instance')11assert theInstance.matches('instance')12assert !theInstance.matches('other')13import org.hamcrest.core.IsSame14def theInstance = IsSame.theInstance('instance')15assert theInstance.matches('instance')16assert !theInstance.matches('other')17import org.hamcrest.core.IsSame18def theInstance = IsSame.theInstance('instance')19assert theInstance.matches('instance')20assert !theInstance.matches('other')21import org.hamcrest.core.IsSame22def theInstance = IsSame.theInstance('instance')23assert theInstance.matches('instance')24assert !theInstance.matches('other')25import org.hamcrest.core.IsSame26def theInstance = IsSame.theInstance('instance')27assert theInstance.matches('instance')28assert !theInstance.matches('other')29import org.hamcrest.core.IsSame30def theInstance = IsSame.theInstance('instance')31assert theInstance.matches('instance')32assert !theInstance.matches('other')33import org.hamcrest.core.IsSame34def theInstance = IsSame.theInstance('instance')35assert theInstance.matches('instance')36assert !theInstance.matches('other')37import org.hamcrest.core.IsSame38def theInstance = IsSame.theInstance('instance')39assert theInstance.matches('instance')40assert !theInstance.matches('other')41import org.hamcrest.core.IsSame42def theInstance = IsSame.theInstance('instance')

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theInstance

Using AI Code Generation

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1import org.hamcrest.core.IsSame2def obj1 = new Object()3def obj2 = new Object()4assertThat obj1, isSame(obj1)5assertThat obj1, isNot(isSame(obj2))6import org.hamcrest.core.IsEqual7def obj1 = new Object()8def obj2 = new Object()9assertThat obj1, isEqual(obj1)10assertThat obj1, isNot(isEqual(obj2))11import org.hamcrest.core.Is12def obj1 = new Object()13def obj2 = new Object()14assertThat obj1, is(obj1)15assertThat obj1, isNot(is(obj2))16import org.hamcrest.core.IsSame17def obj1 = new Object()18def obj2 = new Object()19assertThat obj1, isSame(obj1)20assertThat obj1, isNot(isSame(obj2))21import org.hamcrest.core.IsEqual22def obj1 = new Object()23def obj2 = new Object()24assertThat obj1, isEqual(obj1)25assertThat obj1, isNot(isEqual(obj2))26import org.hamcrest.core.Is27def obj1 = new Object()28def obj2 = new Object()29assertThat obj1, is(obj1)30assertThat obj1, isNot(is(obj2))31import org.hamcrest.core.IsSame32def obj1 = new Object()33def obj2 = new Object()34assertThat obj1, isSame(obj1)35assertThat obj1, isNot(isSame(obj2))36import org.hamcrest.core.IsEqual37def obj1 = new Object()

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theInstance

Using AI Code Generation

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1import org.hamcrest.core.IsSame;2import org.junit.Test;3import static org.hamcrest.MatcherAssert.assertThat;4public class IsSameTest {5 public void testIsSame() {6 String str1 = "Hello";7 String str2 = "Hello";8 assertThat(str1, IsSame.theInstance(str2));9 }10}

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theInstance

Using AI Code Generation

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1import org.hamcrest.core.IsSame2import org.hamcrest.MatcherAssert.assertThat3import org.hamcrest.Matchers.equalTo4import org.hamcrest.Matchers.is5import org.hamcrest.Matchers.not6def a = new String("a")7def b = new String("b")8assertThat(a, is(not(equalTo(b))))9assertThat(a, is(new IsSame(a)))10assertThat(a, is(not(new IsSame(b))))11import static org.hamcrest.CoreMatchers.*12import static org.hamcrest.MatcherAssert.assertThat13def a = new String("a")14def b = new String("b")15assertThat(a, is(not(equalTo(b))))16assertThat(a, is(sameInstance(a)))17assertThat(a, is(not(sameInstance(b))))18import static org.hamcrest.CoreMatchers.*19import static org.hamcrest.MatcherAssert.assertThat20def a = new String("a")21def b = new String("b")22assertThat(a, is(not(equalTo(b))))23assertThat(a, is(sameInstance(a)))24assertThat(a, is(not(sameInstance(b))))25import org.hamcrest.core.IsSame;26import org.hamcrest.MatcherAssert;27import org.hamcrest.Matchers;28import org.hamcrest.Matchers;29{30 public static void main(String args[])31 {32 String a = new String("a");33 String b = new String("b");34 MatcherAssert.assertThat(a, Matchers.is(Matchers.not(Matchers.equalTo(b))));35 MatcherAssert.assertThat(a, Matchers.is(new IsSame(a)));36 MatcherAssert.assertThat(a, Matchers.is(Matchers.not(new IsSame(b))));37 }38}39import static org.hamcrest.CoreMatchers.*;40import static org.hamcrest.MatcherAssert.assertThat;41{42 public static void main(String args[])43 {44 String a = new String("a");45 String b = new String("b");46 assertThat(a, is(not(equalTo(b))));47 assertThat(a, is(sameInstance(a)));48 assertThat(a, is(not(sameInstance(b))));49 }50}

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theInstance

Using AI Code Generation

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1import static org.hamcrest.core.Is.theInstance;2import static org.hamcrest.MatcherAssert.assertThat;3import static org.hamcrest.core.Is.is;4import static org.hamcrest.core.IsNot.not;5import static org.hamcrest.core.IsNull.nullValue;6import static org.hamcrest.core.IsNull.notNullValue;7public class IsSameTest {8 public static void main(String[] args) {9 Object obj1 = new Object();10 Object obj2 = new Object();11 assertThat(obj1, is(not(obj2)));12 assertThat(obj1, is(notNullValue()));13 assertThat(obj2, is(notNullValue()));14 assertThat(obj1, is(not(nullValue())));15 assertThat(obj2, is(not(nullValue())));16 assertThat(obj1, is(theInstance(obj1)));17 assertThat(obj2, is(not(theInstance(obj1))));18 }19}20 at org.hamcrest.core.IsNot.matchesSafely(IsNot.java:30)21 at org.hamcrest.core.IsNot.matchesSafely(IsNot.java:19)22 at org.hamcrest.TypeSafeMatcher.matches(TypeSafeMatcher.java:58)23 at org.hamcrest.MatcherAssert.assertThat(MatcherAssert.java:20)24 at org.hamcrest.MatcherAssert.assertThat(MatcherAssert.java:8)25 at IsSameTest.main(IsSameTest.java:34)26 at org.hamcrest.core.IsNot.matchesSafely(IsNot.java:30)27 at org.hamcrest.core.IsNot.matchesSafely(IsNot.java:19)28 at org.hamcrest.TypeSafeMatcher.matches(TypeSafeMatcher.java:58)29 at org.hamcrest.MatcherAssert.assertThat(MatcherAssert.java:20)30 at org.hamcrest.MatcherAssert.assertThat(MatcherAssert.java:8)31 at IsSameTest.main(IsSameTest.java:35)

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theInstance

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1import org.hamcrest.core.IsSame2import spock.lang.Specification3class IsSameTest extends Specification {4 def "test IsSame"() {5 def expected = new String("Hello")6 def actual = new String("Hello")7 IsSame.theInstance(expected).matches(actual)8 }9}

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theInstance

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1import org.hamcrest.core.IsSame;2import org.hamcrest.core.IsInstanceOf;3import org.hamcrest.core.IsNot;4import org.hamcrest.core.Is;5import org.hamcrest.core.IsEqual;6public class HamcrestExample {7 public static void main(String[] args) {8 Object obj = new Object();9 Object obj2 = new Object();10 Object obj3 = new Object();11 Object obj4 = new Object();12 Object obj5 = new Object();13 Object obj6 = new Object();14 Object obj7 = new Object();15 Object obj8 = new Object();16 Object obj9 = new Object();17 Object obj10 = new Object();18 assertThat(obj, is(sameInstance(obj)));19 assertThat(obj, is(instanceOf(Object.class)));20 assertThat(obj, is(not(sameInstance(obj2))));21 assertThat(obj, is(sameInstance(obj)));22 assertThat(obj, is(equalTo(obj5)));23 assertThat(obj, is(not(sameInstance(obj6))));24 assertThat(obj, is(not(equalTo(obj7))));25 assertThat(obj, is(not(instanceOf(String.class))));26 assertThat(obj, is(not(sameInstance(obj8))));27 assertThat(obj, is(not(equalTo(obj9))));28 assertThat(obj, is(not(equalTo(obj10))));29 }30}

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If you add in Hamcrest and JUnit4, you could do:

String x = "foo bar";
Assert.assertThat(x, CoreMatchers.containsString("foo"));

With some static imports, it looks a lot better:

assertThat(x, containsString("foo"));

The static imports needed would be:

import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.CoreMatchers.containsString;
https://stackoverflow.com/questions/1092219/assertcontains-on-strings-in-junit

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