How to use any method of org.hamcrest.CoreMatchers class

Best junit code snippet using org.hamcrest.CoreMatchers.any

Source:HamcrestCoreMatchersTest.java Github

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1package com.ymmihw.test.hamcrest;23import static org.hamcrest.CoreMatchers.allOf;4import static org.hamcrest.CoreMatchers.any;5import static org.hamcrest.CoreMatchers.anyOf;6import static org.hamcrest.CoreMatchers.both;7import static org.hamcrest.CoreMatchers.containsString;8import static org.hamcrest.CoreMatchers.containsStringIgnoringCase;9import static org.hamcrest.CoreMatchers.either;10import static org.hamcrest.CoreMatchers.endsWith;11import static org.hamcrest.CoreMatchers.endsWithIgnoringCase;12import static org.hamcrest.CoreMatchers.equalTo;13import static org.hamcrest.CoreMatchers.equalToObject;14import static org.hamcrest.CoreMatchers.everyItem;15import static org.hamcrest.CoreMatchers.hasItem;16import static org.hamcrest.CoreMatchers.hasItems;17import static org.hamcrest.CoreMatchers.instanceOf;18import static org.hamcrest.CoreMatchers.is;19import static org.hamcrest.CoreMatchers.isA;20import static org.hamcrest.CoreMatchers.not;21import static org.hamcrest.CoreMatchers.notNullValue;22import static org.hamcrest.CoreMatchers.nullValue;23import static org.hamcrest.CoreMatchers.sameInstance;24import static org.hamcrest.CoreMatchers.startsWith;25import static org.hamcrest.CoreMatchers.startsWithIgnoringCase;26import static org.hamcrest.CoreMatchers.theInstance;27import static org.hamcrest.MatcherAssert.assertThat;28import java.util.List;29import org.junit.jupiter.api.Test;30import com.google.common.collect.Lists;3132public class HamcrestCoreMatchersTest {3334 @Test35 public void givenTestInput_WhenUsingIsForMatch() {3637 // GIVEN38 String testString = "hamcrest core";3940 // ASSERT41 assertThat(testString, is("hamcrest core"));42 assertThat(testString, is(equalTo("hamcrest core")));43 }4445 @Test46 public void givenDifferentStaticTypeTestInput_WhenUsingEqualToObject_ThenCorrect() {4748 // GIVEN49 Object original = 100;5051 // ASSERT52 assertThat(original, equalToObject(100));53 }5455 @Test56 public void givenTestInput_WhenUsingInstanceOfForClassTypeCheck() {5758 assertThat("hamcrest", is(instanceOf(String.class)));59 }6061 @Test62 public void givenTestInput_WhenUsingIsA_ThenAssertType() {6364 assertThat("hamcrest core", isA(String.class));65 }6667 @Test68 public void givenTestInput_WhenUsingEqualToMatcherForEquality() {6970 // GIVEN71 String actualString = "Hamcrest Core";72 List<String> actualList = Lists.newArrayList("hamcrest", "core");7374 // ASSERT75 assertThat(actualString, is(equalTo("Hamcrest Core")));76 assertThat(actualList, is(equalTo(Lists.newArrayList("hamcrest", "core"))));77 }7879 @Test80 public void givenTestInput_WhenUsingNotForMatch() {8182 // GIVEN83 String testString = "hamcrest";8485 // ASSERT86 assertThat(testString, not("hamcrest core"));87 assertThat(testString, is(not(equalTo("hamcrest core"))));88 assertThat(testString, is(not(instanceOf(Integer.class))));89 }9091 @Test92 public void givenTestInput_WhenUsingNullValueForNullCheck() {9394 // GIVEN95 Integer nullObject = null;9697 // ASSERT98 assertThat(nullObject, is(nullValue()));99 assertThat(nullObject, is(nullValue(Integer.class)));100 }101102 @Test103 public void givenTestInput_WhenUsingNotNullValueForNotNullCheck() {104105 // GIVEN106 Integer testNumber = 123;107108 // ASSERT109 assertThat(testNumber, is(notNullValue()));110 assertThat(testNumber, is(notNullValue(Integer.class)));111 }112113 @Test114 public void givenString_WhenStartsWith_ThenCorrect() {115116 // GIVEN117 String testString = "hamcrest core";118119 // ASSERT120 assertThat(testString, startsWith("hamcrest"));121 }122123 @Test124 public void giveString_WhenStartsWithIgnoringCase_ThenCorrect() {125126 // GIVEN127 String testString = "hamcrest core";128129 // ASSERT130 assertThat(testString, startsWithIgnoringCase("HAMCREST"));131 }132133 @Test134 public void givenString_WhenEndsWith_ThenCorrect() {135136 // GIVEN137 String testString = "hamcrest core";138139 // ASSERT140 assertThat(testString, endsWith("core"));141 }142143 @Test144 public void givenString_WhenEndsWithIgnoringCase_ThenCorrect() {145146 // GIVEN147 String testString = "hamcrest core";148149 // ASSERT150 assertThat(testString, endsWithIgnoringCase("CORE"));151 }152153 @Test154 public void givenString_WhenContainsString_ThenCorrect() {155156 // GIVEN157 String testString = "hamcrest core";158159 // ASSERT160 assertThat(testString, containsString("co"));161 }162163 @Test164 public void givenString_WhenContainsStringIgnoringCase_ThenCorrect() {165166167 // GIVEN168 String testString = "hamcrest core";169170 // ASSERT171 assertThat(testString, containsStringIgnoringCase("CO"));172 }173174 @Test175 public void givenTestInput_WhenUsingHasItemInCollection() {176177 // GIVEN178 List<String> list = Lists.newArrayList("java", "spring", "baeldung");179180 // ASSERT181 assertThat(list, hasItem("java"));182 assertThat(list, hasItem(isA(String.class)));183 }184185186 @Test187 public void givenTestInput_WhenUsingHasItemsInCollection() {188189 // GIVEN190 List<String> list = Lists.newArrayList("java", "spring", "baeldung");191192 // ASSERT193 assertThat(list, hasItems("java", "baeldung"));194 assertThat(list, hasItems(isA(String.class), endsWith("ing")));195 }196197 @Test198 public void givenTestInput_WhenUsingAnyForClassType() {199200 assertThat("hamcrest", is(any(String.class)));201 assertThat("hamcrest", is(any(Object.class)));202 }203204 @Test205 public void givenTestInput_WhenUsingAllOfForAllMatchers() {206207 // GIVEN208 String testString = "Hamcrest Core";209210 // ASSERT211 assertThat(testString, allOf(startsWith("Ham"), endsWith("ore"), containsString("Core")));212 }213214 @Test215 public void givenTestInput_WhenUsingAnyOfForAnyMatcher() {216217 // GIVEN218 String testString = "Hamcrest Core";219220 // ASSERT221 assertThat(testString, anyOf(startsWith("Ham"), containsString("baeldung")));222 }223224 @Test225 public void givenTestInput_WhenUsingBothForMatcher() {226227 // GIVEN228 String testString = "Hamcrest Core Matchers";229230 // ASSERT231 assertThat(testString, both(startsWith("Ham")).and(containsString("Core")));232 }233234 @Test235 public void givenTestInput_WhenUsingEitherForMatcher() { ...

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Source:JUnitMatchers.java Github

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...11 * @since 4.412 */13public class JUnitMatchers {14 /**15 * @return A matcher matching any collection containing element16 * @deprecated Please use {@link CoreMatchers#hasItem(Object)} instead.17 */18 @Deprecated19 public static <T> Matcher<Iterable<? super T>> hasItem(T element) {20 return CoreMatchers.hasItem(element);21 }22 /**23 * @return A matcher matching any collection containing an element matching elementMatcher24 * @deprecated Please use {@link CoreMatchers#hasItem(Matcher)} instead.25 */26 @Deprecated27 public static <T> Matcher<Iterable<? super T>> hasItem(Matcher<? super T> elementMatcher) {28 return CoreMatchers.<T>hasItem(elementMatcher);29 }30 /**31 * @return A matcher matching any collection containing every element in elements32 * @deprecated Please use {@link CoreMatchers#hasItems(Object...)} instead.33 */34 @Deprecated35 public static <T> Matcher<Iterable<T>> hasItems(T... elements) {36 return CoreMatchers.hasItems(elements);37 }38 /**39 * @return A matcher matching any collection containing at least one element that matches40 * each matcher in elementMatcher (this may be one element matching all matchers,41 * or different elements matching each matcher)42 * @deprecated Please use {@link CoreMatchers#hasItems(Matcher...)} instead.43 */44 @Deprecated45 public static <T> Matcher<Iterable<T>> hasItems(Matcher<? super T>... elementMatchers) {46 return null;47 }48 /**49 * @return A matcher matching any collection in which every element matches elementMatcher50 * @deprecated Please use {@link CoreMatchers#everyItem(Matcher)} instead.51 */52 @Deprecated53 public static <T> Matcher<Iterable<T>> everyItem(final Matcher<T> elementMatcher) {54 return CoreMatchers.everyItem(elementMatcher);55 }56 /**57 * @return a matcher matching any string that contains substring58 * @deprecated Please use {@link CoreMatchers#containsString(String)} instead.59 */60 @Deprecated61 public static Matcher<java.lang.String> containsString(java.lang.String substring) {62 return CoreMatchers.containsString(substring);63 }64 /**65 * This is useful for fluently combining matchers that must both pass. For example:66 * <pre>67 * assertThat(string, both(containsString("a")).and(containsString("b")));68 * </pre>69 *70 * @deprecated Please use {@link CoreMatchers#both(Matcher)} instead.71 */...

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Source:AssertThatTest.java Github

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2import org.junit.Test;3import java.util.Arrays;4import java.util.List;5import static org.hamcrest.CoreMatchers.allOf;6import static org.hamcrest.CoreMatchers.anyOf;7import static org.hamcrest.CoreMatchers.anything;8import static org.hamcrest.CoreMatchers.both;9import static org.hamcrest.CoreMatchers.containsString;10import static org.hamcrest.CoreMatchers.describedAs;11import static org.hamcrest.CoreMatchers.either;12import static org.hamcrest.CoreMatchers.endsWith;13import static org.hamcrest.CoreMatchers.equalTo;14import static org.hamcrest.CoreMatchers.everyItem;15import static org.hamcrest.CoreMatchers.hasItem;16import static org.hamcrest.CoreMatchers.hasItems;17import static org.hamcrest.CoreMatchers.is;18import static org.hamcrest.CoreMatchers.isA;19import static org.hamcrest.CoreMatchers.not;20import static org.hamcrest.CoreMatchers.nullValue;21import static org.hamcrest.CoreMatchers.sameInstance;22import static org.hamcrest.CoreMatchers.startsWith;23import static org.hamcrest.CoreMatchers.theInstance;24import static org.junit.Assert.assertThat;25/**26 * Exploring assertThat assertion using Harmcrest matchers27 */28public class AssertThatTest {29 @Test30 public void testAssertThat() {31 String string = "String";32 assertThat(string, is("String")); // This assertions does the same33 assertThat(string, equalTo("String"));34 assertThat(string, is(equalTo("String")));35 }36 @Test37 public void testAssertThatChain() {38 String string = "String";39 assertThat(string, allOf(containsString("ing"), startsWith("S"), endsWith("g")));40 assertThat(string, anyOf(containsString("tr"), startsWith("A"), endsWith("g")));41 assertThat(string, not(allOf(containsString("tr"), startsWith("A"), endsWith("g"))));42 assertThat(string, both(startsWith("S")).and(endsWith("g")));43 assertThat(string, both(startsWith("S")).and(endsWith("s")).or(endsWith("g")));44 assertThat(string, either(startsWith("X")).or(startsWith("S")).or(endsWith("g")));45 }46 @Test47 public void testVerboseHamcrestMatcher() {48 String string = "S";49 // This assertion if fails return a better description as:50 // java.lang.AssertionError: Expected: a String that start with "S" but: was "Foo"51 assertThat(string, describedAs("a String that start with %0", startsWith("S"), "S"));52 }53 @Test54 public void testSimpleHamcrestMatcher() {55 // Creates a matcher that always matches, regardless of the examined object.56 assertThat(null, anything());57 assertThat(null, nullValue());58 assertThat(null, is(nullValue()));59 Object actual = new Object();60 Object expected = actual;61 assertThat(actual, isA(Object.class));62 assertThat(actual, sameInstance(expected));63 assertThat(actual, theInstance(expected));64 assertThat(actual, not(sameInstance(new Object())));65 }66 @Test67 public void testArrayHamcrestMatcher() {68 List<String> strings = Arrays.asList("String", "Strong", "Street");69 assertThat(strings, everyItem(isA(String.class)));70 assertThat(strings, everyItem(startsWith("S")));...

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Source:AssertTest.java Github

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1package com.clonegod.unittest.junit;2import static org.hamcrest.CoreMatchers.allOf;3import static org.hamcrest.CoreMatchers.anyOf;4import static org.hamcrest.CoreMatchers.both;5import static org.hamcrest.CoreMatchers.containsString;6import static org.hamcrest.CoreMatchers.equalTo;7import static org.hamcrest.CoreMatchers.everyItem;8import static org.hamcrest.CoreMatchers.hasItems;9import static org.hamcrest.CoreMatchers.not;10import static org.hamcrest.CoreMatchers.sameInstance;11import static org.hamcrest.CoreMatchers.startsWith;12import static org.junit.Assert.assertArrayEquals;13import static org.junit.Assert.assertEquals;14import static org.junit.Assert.assertFalse;15import static org.junit.Assert.assertNotNull;16import static org.junit.Assert.assertNotSame;17import static org.junit.Assert.assertNull;18import static org.junit.Assert.assertSame;19import static org.junit.Assert.assertThat;20import static org.junit.Assert.assertTrue;21import java.util.Arrays;22import org.hamcrest.core.CombinableMatcher;23import org.junit.Test;24/**25 * 原始类型的断言26 * 对象的断言27 * 数组的断言28 * 集合的断言29 * 30 * assertXXX(failtureMessage, expectedValue, actualValue)31 * assertThat(failtureMessage, actualValue, Matcher)32 * 33 * @author Administrator34 *35 */36public class AssertTest {37 38 @Test39 public void testAssertTrue() {40 assertTrue("failure - should be true", true);41 }42 43 @Test44 public void testAssertFalse() {45 assertFalse("failure - should be false", false);46 }47 48 @Test49 public void testAssertArrayEquals() {50 byte[] expected = "trial".getBytes();51 byte[] actual = "trial".getBytes();52 assertArrayEquals("failure - byte arrays not same", expected, actual);53 }54 @Test55 public void testAssertEquals() {56 assertEquals("failure - strings are not equal", "text", "text");57 }58 @Test59 public void testAssertNull() {60 assertNull("should be null", null);61 }62 63 @Test64 public void testAssertNotNull() {65 assertNotNull("should not be null", new Object());66 }67 @Test68 public void testAssertSame() {69 Integer aNumber = Integer.valueOf(768);70 assertSame("should be same", aNumber, aNumber);71 }72 73 @Test74 public void testAssertNotSame() {75 assertNotSame("should not be same Object", new Object(), new Object());76 }77 78 /*********************************************************79 assertTaht + Matcher80 *********************************************************/81 // >>> JUnit Matchers assertThat 82 @Test83 public void testAssertThatBothContainsString() {84 assertThat("albumen", both(containsString("a")).and(containsString("b")));85 }86 @Test87 public void testAssertThatHasItems() {88 assertThat(Arrays.asList("one", "two", "three"), hasItems("one", "three"));89 }90 @Test91 public void testAssertThatEveryItemContainsString() {92 assertThat(Arrays.asList(new String[] { "fun", "ban", "net" }), everyItem(containsString("n")));93 }94 // Core Hamcrest Matchers with assertThat95 @Test96 public void testAssertThatHamcrestCoreMatchers() {97 assertThat("good", allOf(equalTo("good"), startsWith("good")));98 assertThat("good", not(allOf(equalTo("bad"), equalTo("good"))));99 assertThat("good", anyOf(equalTo("bad"), equalTo("good")));100 assertThat(7, not(CombinableMatcher.<Integer> either(equalTo(3)).or(equalTo(4))));101 assertThat(new Object(), not(sameInstance(new Object())));102 }103}...

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Source:AssertTests.java Github

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1package junit;2import static org.hamcrest.CoreMatchers.allOf;3import static org.hamcrest.CoreMatchers.anyOf;4import static org.hamcrest.CoreMatchers.both;5import static org.hamcrest.CoreMatchers.containsString;6import static org.hamcrest.CoreMatchers.equalTo;7import static org.hamcrest.CoreMatchers.everyItem;8import static org.hamcrest.CoreMatchers.hasItems;9import static org.hamcrest.CoreMatchers.not;10import static org.hamcrest.CoreMatchers.sameInstance;11import static org.hamcrest.CoreMatchers.startsWith;12import static org.junit.Assert.assertArrayEquals;13import static org.junit.Assert.assertEquals;14import static org.junit.Assert.assertFalse;15import static org.junit.Assert.assertNotNull;16import static org.junit.Assert.assertNotSame;17import static org.junit.Assert.assertNull;18import static org.junit.Assert.assertSame;19import static org.junit.Assert.assertThat;20import static org.junit.Assert.assertTrue;21import java.util.Arrays;22import org.hamcrest.core.CombinableMatcher;23import org.junit.Ignore;24import org.junit.Test;25public class AssertTests {26 @Test27 public void testAssertArrayEquals() {28 byte[] expected = "trial".getBytes();29 byte[] actual = "trial".getBytes();30 assertArrayEquals("failure - byte arrays not same", expected, actual);31 }32 @Test33 public void testAssertEquals() {34 assertEquals("failure - strings are not equal", "text", "text");35 }36 @Test37 public void testAssertFalse() {38 assertFalse("failure - should be false", false);39 }40 @Test41 public void testAssertNotNull() {42 assertNotNull("should not be null", new Object());43 }44 @Test45 public void testAssertNotSame() {46 assertNotSame("should not be same Object", new Object(), new Object());47 }48 @Test49 public void testAssertNull() {50 assertNull("should be null", null);51 }52 @Test53 public void testAssertSame() {54 Integer aNumber = 768;55 assertSame("should be same", aNumber, aNumber);56 }57 // JUnit Matchers assertThat58 @Test59 public void testAssertThatBothContainsString() {60 assertThat("albumen", both(containsString("a")).and(containsString("b")));61 }62 @Test63 public void testAssertThatHasItems() {64 assertThat(Arrays.asList("one", "two", "three"), hasItems("one", "three"));65 }66 @Test67 public void testAssertThatEveryItemContainsString() {68 assertThat(Arrays.asList("fun", "ban", "net"), everyItem(containsString("n")));69 }70 // Core Hamcrest Matchers with assertThat71 @Test72 public void testAssertThatHamcrestCoreMatchers() {73 assertThat("good", allOf(equalTo("good"), startsWith("good")));74 assertThat("good", not(allOf(equalTo("bad"), equalTo("good"))));75 assertThat("good", anyOf(equalTo("bad"), equalTo("good")));76 assertThat(7, not(CombinableMatcher.<Integer> either(equalTo(3)).or(equalTo(4))));77 assertThat(new Object(), not(sameInstance(new Object())));78 }79 @Test80 public void testAssertTrue() {81 assertTrue("failure - should be true", true);82 }83}...

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Source:ExampleJunitAssertions.java Github

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1package edu.nyu.oop;2import static org.hamcrest.CoreMatchers.allOf;3import static org.hamcrest.CoreMatchers.anyOf;4import static org.hamcrest.CoreMatchers.equalTo;5import static org.hamcrest.CoreMatchers.not;6import static org.hamcrest.CoreMatchers.sameInstance;7import static org.hamcrest.CoreMatchers.startsWith;8import static org.junit.Assert.assertThat;9import static org.hamcrest.CoreMatchers.both;10import static org.hamcrest.CoreMatchers.containsString;11import static org.hamcrest.CoreMatchers.everyItem;12import static org.hamcrest.CoreMatchers.hasItems;13import java.util.Arrays;14import org.hamcrest.core.CombinableMatcher;15import org.junit.Test;16public class ExampleJunitAssertions {17 @Test18 public void testAssertArrayEquals() {19 byte[] expected = "trial".getBytes();20 byte[] actual = "trial".getBytes();21 org.junit.Assert.assertArrayEquals("failure - byte arrays not same", expected, actual);22 }23 @Test24 public void testAssertEquals() {25 org.junit.Assert.assertEquals("failure - strings are not equal", "text", "text");26 }27 @Test28 public void testAssertFalse() {29 org.junit.Assert.assertFalse("failure - should be false", false);30 }31 @Test32 public void testAssertNotNull() {33 org.junit.Assert.assertNotNull("should not be null", new Object());34 }35 @Test36 public void testAssertNotSame() {37 org.junit.Assert.assertNotSame("should not be same Object", new Object(), new Object());38 }39 @Test40 public void testAssertNull() {41 org.junit.Assert.assertNull("should be null", null);42 }43 @Test44 public void testAssertSame() {45 Integer aNumber = 768;46 org.junit.Assert.assertSame("should be same", aNumber, aNumber);47 }48 // JUnit Matchers assertThat49 @Test50 public void testAssertThatBothContainsString() {51 org.junit.Assert.assertThat("albumen", both(containsString("a")).and(containsString("b")));52 }53 @Test54 public void testAssertThathasItemsContainsString() {55 org.junit.Assert.assertThat(Arrays.asList("one", "two", "three"), hasItems("one", "three"));56 }57 @Test58 public void testAssertThatEveryItemContainsString() {59 org.junit.Assert.assertThat(Arrays.asList("fun", "ban", "net"), everyItem(containsString("n")));60 }61 @Test62 public void testAssertThatHamcrestCoreMatchers() {63 assertThat("good", allOf(equalTo("good"), startsWith("good")));64 assertThat("good", not(allOf(equalTo("bad"), equalTo("good"))));65 assertThat("good", anyOf(equalTo("bad"), equalTo("good")));66 assertThat(7, not(CombinableMatcher.<Integer> either(equalTo(3)).or(equalTo(4))));67 assertThat(new Object(), not(sameInstance(new Object())));68 }69 @Test70 public void testAssertTrue() {71 org.junit.Assert.assertTrue("failure - should be true", true);72 }73}...

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Source:AssertionsShowTest.java Github

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1package com.airhacks;2import java.util.Arrays;3import java.util.List;4import static org.hamcrest.CoreMatchers.allOf;5import static org.hamcrest.CoreMatchers.anyOf;6import static org.hamcrest.CoreMatchers.both;7import static org.hamcrest.CoreMatchers.containsString;8import static org.hamcrest.CoreMatchers.either;9import static org.hamcrest.CoreMatchers.everyItem;10import static org.hamcrest.CoreMatchers.hasItem;11import static org.hamcrest.CoreMatchers.hasItems;12import static org.hamcrest.CoreMatchers.not;13import org.hamcrest.CustomMatcher;14import org.hamcrest.Matcher;15import static org.junit.Assert.assertThat;16import org.junit.Before;17import org.junit.Test;18/**19 *20 * @author airhacks.com21 */22public class AssertionsShowTest {23 private List<String> stringList;24 @Before25 public void init() {26 this.stringList = Arrays.asList("java", "javaee", "joker");27 }28 @Test29 public void lists() {30 assertThat(stringList, hasItem("java"));31 assertThat(stringList, hasItem("javaee"));32 assertThat(stringList, hasItems("javaee", "joker"));33 assertThat(stringList, everyItem(containsString("j")));34 }35 @Test36 public void combinableMathers() {37 assertThat(stringList, both(hasItem("java")).and(hasItem("javaee")));38 assertThat(stringList, either(hasItem("java")).or(hasItem("javascript")));39 assertThat(stringList, anyOf(hasItem("javascript"), hasItem("javaee")));40 assertThat(stringList, allOf(hasItem("java"), not(hasItem("erlang"))));41 }42 @Test43 public void customMatcher() {44 Matcher<String> containsJ = new CustomMatcher<String>("contains j") {45 @Override46 public boolean matches(Object item) {47 if (!(item instanceof String)) {48 return false;49 }50 String content = (String) item;51 return content.contains("j");52 }53 };...

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Source:HamcrestTest.java Github

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1package lectures.unittesting;23import static org.hamcrest.CoreMatchers.anyOf;4import static org.hamcrest.CoreMatchers.anything;5import static org.hamcrest.CoreMatchers.describedAs;6import static org.hamcrest.CoreMatchers.equalTo;7import static org.hamcrest.CoreMatchers.instanceOf;8import static org.hamcrest.CoreMatchers.is;9import static org.hamcrest.CoreMatchers.nullValue;10import static org.hamcrest.CoreMatchers.sameInstance;11import static org.junit.Assert.assertThat;1213import org.hamcrest.Description;14import org.hamcrest.Matcher;15import org.hamcrest.StringDescription;16import org.junit.Test;1718public class HamcrestTest {19 20 // Feels very esoteric and not for typical usage used to override the21 // description22 @Test23 public void describedAsExample() throws Exception {24 Matcher<?> matcher = describedAs("My Description", anything());25 Description description = new StringDescription()26 .appendDescriptionOf(matcher);27 assertThat("My Description", is(description.toString()));28 }29 30 @SuppressWarnings("unchecked")31 @Test32 public void anyOfExampleReturnsTrueIfOneMatches() throws Exception {33 assertThat(34 "Hello",35 is(anyOf(nullValue(), instanceOf(String.class),36 equalTo("Goodbye"))));37 }38 39 @Test40 public void sameInstanceExample() throws Exception {41 Object object = new Object();42 Object sameObject = object;43 assertThat(object, is(sameInstance(sameObject)));44 }4546} ...

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1import static org.hamcrest.CoreMatchers.*;2import static org.hamcrest.Matchers.*;3import static org.hamcrest.text.IsEqualIgnoringCase.*;4import static org.hamcrest.collection.IsIterableContainingInOrder.*;5import static org.hamcrest.collection.IsIterableContainingInAnyOrder.*;6import static org.hamcrest.collection.IsIterableWithSize.*;7import static org.hamcrest.collection.IsEmptyCollection.*;8import static org.hamcrest.collection.IsIn.*;9import static org.hamcrest.collection.IsMapContaining.*;10import static org.hamcrest.collection.IsMapWithSize.*;11import static org.hamcrest.collection.IsArrayContainingInOrder.*;12import static org.hamcrest.collection.IsArrayContainingInAnyOrder.*;13import static org.hamcrest.collection.IsArrayWithSize.*;14import static org.hamcrest.collection.IsEmptyArray.*;15import static org.hamcrest.collection.IsArrayContaining.*;16import static org.hamcrest.collection.IsCollectionWithSize.*;17import static org.hamcrest.collection.IsEmptyCollection.*;18import static org.hamcrest.collection.IsArrayContainingInOrder.*;19import static org.hamcrest.collection.IsArrayContainingInAnyOrder.*;20import static org.hamcrest.collection.IsArrayWithSize.*;

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1import static org.hamcrest.CoreMatchers.*;2import static org.hamcrest.MatcherAssert.*;3import static org.hamcrest.Matchers.*;4import static org.hamcrest.beans.HasProperty.*;5import static org.hamcrest.core.AllOf.*;6import static org.hamcrest.core.AnyOf.*;7import static org.hamcrest.core.Anything.*;8import static org.hamcrest.core.CombinableMatcher.*;9import static org.hamcrest.core.DescribedAs.*;10import static org.hamcrest.core.Every.*;11import static org.hamcrest.core.Is.*;12import static org.hamcrest.core.IsCollectionContaining.*;13import static org.hamcrest.core.IsEqual.*;14import static org.hamcrest.core.IsInstanceOf.*;15import static org.hamcrest.core.IsNot.*;16import static org.hamcrest.core.IsNull.*;17import static org.hamcrest.core.IsSame.*;18import static org.hamcrest.core.StringContains.*;19import static org.hamcrest.core.StringEndsWith.*;20import static org.hamcrest.core.StringStartsWith.*;21import static org.hamcrest.number.BigDecimalCloseTo.*;22import static org.hamcrest.number.IsCloseTo.*;23import static org.hamcrest.object.HasToString

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1import static org.hamcrest.CoreMatchers.*2import static org.hamcrest.Matchers.*3import static org.hamcrest.core.Is.*4import static org.hamcrest.core.IsNot.*5import static org.hamcrest.core.IsEqual.*6import static org.hamcrest.core.IsNotEqual.*7import static org.hamcrest.core.IsSame.*8import static org.hamcrest.core.IsNotSame.*9import static org.hamcrest.core.IsInstanceOf.*10import static org.hamcrest.core.IsNotInstanceOf.*11import static org.hamcrest.core.IsNull.*12import static org.hamcrest.core.IsNotNull.*13import static org.hamcrest.core.IsCollectionContaining.*14import static org.hamcrest.core.IsNotCollectionContaining.*15import static org.hamcrest.core.IsArrayContaining.*16import static org.hamcrest.core.IsNotArrayContaining.*17import static org.hamcrest.core.IsArrayContainingInOrder.*18import static org.hamcrest.core.IsNotArrayContainingInOrder.*19import static org.hamcrest.core.IsArrayContainingInAnyOrder.*20import static org.hamcrest.core.IsNotArrayContainingInAnyOrder.*21import static org.hamcrest.core.IsIterableContainingInOrder.*

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1assertThat(1, is(1))2assertThat(1, not(2))3assertThat(1, is(not(2)))4assertThat(1, is(equalTo(1)))5assertThat(1, is(not(equalTo(2))))6assertThat(1, isA(Integer.class))7assertThat(1, instanceOf(Integer.class))8assertThat(1, is(instanceOf(Integer.class)))9assertThat(1, is(instanceOf(Integer.class)))10assertThat(1, is(any(Integer.class)))11assertThat(1, is(anything()))12assertThat(1, is(anything()))13assertThat(1, is(notNullValue()))14assertThat(1, is(notNullValue()))15assertThat(1, is(nullValue()))16assertThat(1, is(nullValue()))17assertThat(1, is(notNullValue()))18assertThat(1, is(notNullValue()))19assertThat(1, is(not(nullValue())))20assertThat(1, is(not(nullValue())))21assertThat(1, is(nullValue()))22assertThat(1, is(nullValue()))23assertThat(1, is(not(nullValue())))24assertThat(1, is(not(nullValue())))25assertThat(1, is(nullValue()))26assertThat(1, is(nullValue()))27assertThat(1, is(not(nullValue())))28assertThat(1, is(not(nullValue())))29assertThat(1, is(nullValue()))30assertThat(1, is(nullValue()))31assertThat(1, is(not(nullValue())))32assertThat(1, is(not(nullValue())))33assertThat(1, is(nullValue()))34assertThat(1, is(nullValue()))35assertThat(1, is(not(nullValue())))36assertThat(1, is(not(nullValue())))37assertThat(1, is(nullValue()))38assertThat(1, is(nullValue()))39assertThat(1, is(not(nullValue())))40assertThat(1, is(not(nullValue())))41assertThat(1, is(nullValue()))42assertThat(1, is(nullValue()))43assertThat(1, is(not(nullValue())))44assertThat(1, is(not(nullValue())))45assertThat(1, is(nullValue()))46assertThat(1, is(nullValue()))47assertThat(1, is(not(nullValue())))48assertThat(1, is(not(nullValue())))49assertThat(1, is(nullValue()))50assertThat(1, is(nullValue()))51assertThat(1, is(not(nullValue())))52assertThat(1, is(not

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1import static org.hamcrest.CoreMatchers.containsString;2import static org.hamcrest.CoreMatchers.equalTo;3import static org.junit.Assert.assertThat;4import static org.junit.Assert.assertTrue;5import org.junit.Test;6import com.jayway.restassured.RestAssured;7import com.jayway.restassured.response.Response;8public class HelloWorldTest {9 public void shouldReturnHelloWorld() {10 assertThat(response.getStatusCode(), equalTo(200));11 assertThat(response.asString(), containsString("Hello World"));12 }13}

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JUnit Tutorial:

LambdaTest also has a detailed JUnit tutorial explaining its features, importance, advanced use cases, best practices, and more to help you get started with running your automation testing scripts.

JUnit Tutorial Chapters:

Here are the detailed JUnit testing chapters to help you get started:

  • Importance of Unit testing - Learn why Unit testing is essential during the development phase to identify bugs and errors.
  • Top Java Unit testing frameworks - Here are the upcoming JUnit automation testing frameworks that you can use in 2023 to boost your unit testing.
  • What is the JUnit framework
  • Why is JUnit testing important - Learn the importance and numerous benefits of using the JUnit testing framework.
  • Features of JUnit - Learn about the numerous features of JUnit and why developers prefer it.
  • JUnit 5 vs. JUnit 4: Differences - Here is a complete comparison between JUnit 5 and JUnit 4 testing frameworks.
  • Setting up the JUnit environment - Learn how to set up your JUnit testing environment.
  • Getting started with JUnit testing - After successfully setting up your JUnit environment, this chapter will help you get started with JUnit testing in no time.
  • Parallel testing with JUnit - Parallel Testing can be used to reduce test execution time and improve test efficiency. Learn how to perform parallel testing with JUnit.
  • Annotations in JUnit - When writing automation scripts with JUnit, we can use JUnit annotations to specify the type of methods in our test code. This helps us identify those methods when we run JUnit tests using Selenium WebDriver. Learn in detail what annotations are in JUnit.
  • Assertions in JUnit - Assertions are used to validate or test that the result of an action/functionality is the same as expected. Learn in detail what assertions are and how to use them while performing JUnit testing.
  • Parameterization in JUnit - Parameterized Test enables you to run the same automated test scripts with different variables. By collecting data on each method's test parameters, you can minimize time spent on writing tests. Learn how to use parameterization in JUnit.
  • Nested Tests In JUnit 5 - A nested class is a non-static class contained within another class in a hierarchical structure. It can share the state and setup of the outer class. Learn about nested annotations in JUnit 5 with examples.
  • Best practices for JUnit testing - Learn about the best practices, such as always testing key methods and classes, integrating JUnit tests with your build, and more to get the best possible results.
  • Advanced Use Cases for JUnit testing - Take a deep dive into the advanced use cases, such as how to run JUnit tests in Jupiter, how to use JUnit 5 Mockito for Unit testing, and more for JUnit testing.

JUnit Certification:

You can also check out our JUnit certification if you wish to take your career in Selenium automation testing with JUnit to the next level.

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