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

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

Source:ensureExceptions.java

...20			try {21				TARGET.root();22			} catch (Throwable t) {23				thrown = true;24				org.junit.Assert.assertThat("Verifying root() throws EmptyTreeException", t, org.hamcrest.CoreMatchers.instanceOf(EmptyTreeException.class));25			}26			if(!thrown){27				org.junit.Assert.fail("Verifying root() throws EmptyTreeException: Expected Throwable EmptyTreeException");28			}29		}30	}31	@org.junit.Test()32	@jug.TestName("AddRoot; Ensure insertLeft does not accept null positions")33	public void Test2() throws Throwable {34		TARGET.addRoot( 1 );35		36		{ boolean thrown = false;37			try {38				TARGET.insertLeft( null, 5 );39			} catch (Throwable t) {40				thrown = true;41				org.junit.Assert.assertThat("AddRoot; Ensure insertLeft does not accept null positions", t, org.hamcrest.CoreMatchers.instanceOf(InvalidPositionException.class));42			}43			if(!thrown){44				org.junit.Assert.fail("AddRoot; Ensure insertLeft does not accept null positions: Expected Throwable InvalidPositionException");45			}46		}47	}48	@org.junit.Test()49	@jug.TestName("AddRoot; Ensure insertRight does not accept null positions")50	public void Test3() throws Throwable {51		TARGET.addRoot( 1 );52		53		{ boolean thrown = false;54			try {55				TARGET.insertRight( null, 5 );56			} catch (Throwable t) {57				thrown = true;58				org.junit.Assert.assertThat("AddRoot; Ensure insertRight does not accept null positions", t, org.hamcrest.CoreMatchers.instanceOf(InvalidPositionException.class));59			}60			if(!thrown){61				org.junit.Assert.fail("AddRoot; Ensure insertRight does not accept null positions: Expected Throwable InvalidPositionException");62			}63		}64	}65	@org.junit.Test()66	@jug.TestName("AddRoot; Ensure hasLeft does not accept null positions")67	public void Test4() throws Throwable {68		TARGET.addRoot( 1 );69		70		{ boolean thrown = false;71			try {72				TARGET.hasLeft( null );73			} catch (Throwable t) {74				thrown = true;75				org.junit.Assert.assertThat("AddRoot; Ensure hasLeft does not accept null positions", t, org.hamcrest.CoreMatchers.instanceOf(InvalidPositionException.class));76			}77			if(!thrown){78				org.junit.Assert.fail("AddRoot; Ensure hasLeft does not accept null positions: Expected Throwable InvalidPositionException");79			}80		}81	}82	@org.junit.Test()83	@jug.TestName("AddRoot; Ensure hasRight does not accept null positions")84	public void Test5() throws Throwable {85		TARGET.addRoot( 1 );86		87		{ boolean thrown = false;88			try {89				TARGET.hasRight( null );90			} catch (Throwable t) {91				thrown = true;92				org.junit.Assert.assertThat("AddRoot; Ensure hasRight does not accept null positions", t, org.hamcrest.CoreMatchers.instanceOf(InvalidPositionException.class));93			}94			if(!thrown){95				org.junit.Assert.fail("AddRoot; Ensure hasRight does not accept null positions: Expected Throwable InvalidPositionException");96			}97		}98	}99	@org.junit.Test()100	@jug.TestName("AddRoot; Ensure left() does not accept null positions")101	public void Test6() throws Throwable {102		TARGET.addRoot( 1 );103		104		{ boolean thrown = false;105			try {106				TARGET.left( null );107			} catch (Throwable t) {108				thrown = true;109				org.junit.Assert.assertThat("AddRoot; Ensure left() does not accept null positions", t, org.hamcrest.CoreMatchers.instanceOf(InvalidPositionException.class));110			}111			if(!thrown){112				org.junit.Assert.fail("AddRoot; Ensure left() does not accept null positions: Expected Throwable InvalidPositionException");113			}114		}115	}116	@org.junit.Test()117	@jug.TestName("AddRoot; Ensure right() does not accept null positions")118	public void Test7() throws Throwable {119		TARGET.addRoot( 1 );120		121		{ boolean thrown = false;122			try {123				TARGET.right( null );124			} catch (Throwable t) {125				thrown = true;126				org.junit.Assert.assertThat("AddRoot; Ensure right() does not accept null positions", t, org.hamcrest.CoreMatchers.instanceOf(InvalidPositionException.class));127			}128			if(!thrown){129				org.junit.Assert.fail("AddRoot; Ensure right() does not accept null positions: Expected Throwable InvalidPositionException");130			}131		}132	}133	@org.junit.Test()134	@jug.TestName("Ensure left( addRoot( 1 ) ) throws BoundaryViolationException")135	public void Test8() throws Throwable {136		137		{ boolean thrown = false;138			try {139                                Position r = TARGET.addRoot( 1 );140				TARGET.left( r );141			} catch (Throwable t) {142                                t.printStackTrace();143				thrown = true;144				org.junit.Assert.assertThat("Ensure left( addRoot( 1 ) ) throws BoundaryViolationException", t, org.hamcrest.CoreMatchers.instanceOf(BoundaryViolationException.class));145			}146			if(!thrown){147				org.junit.Assert.fail("Ensure left( addRoot( 1 ) ) throws BoundaryViolationException: Expected Throwable BoundaryViolationException");148			}149		}150	}151	@org.junit.Test()152	@jug.TestName("Ensure right( addRoot( 1 ) ) throws BoundaryViolationException")153	public void Test9() throws Throwable {154		155		{ boolean thrown = false;156			try {157				TARGET.right( TARGET.addRoot( 1 ) );158			} catch (Throwable t) {159				thrown = true;160				org.junit.Assert.assertThat("Ensure right( addRoot( 1 ) ) throws BoundaryViolationException", t, org.hamcrest.CoreMatchers.instanceOf(BoundaryViolationException.class));161			}162			if(!thrown){163				org.junit.Assert.fail("Ensure right( addRoot( 1 ) ) throws BoundaryViolationException: Expected Throwable BoundaryViolationException");164			}165		}166	}167	@org.junit.Test()168	@jug.TestName("AddRoot; Ensure remove does not allow null positions")169	public void Test10() throws Throwable {170		171		{ boolean thrown = false;172			try {173				TARGET.remove( null );174			} catch (Throwable t) {175				thrown = true;176				org.junit.Assert.assertThat("AddRoot; Ensure remove does not allow null positions", t, org.hamcrest.CoreMatchers.instanceOf(InvalidPositionException.class));177			}178			if(!thrown){179				org.junit.Assert.fail("AddRoot; Ensure remove does not allow null positions: Expected Throwable InvalidPositionException");180			}181		}182	}183	@org.junit.Test()184	@jug.TestName("AddRoot; AddRoot should throw NonEmptyTreeException")185	public void Test11() throws Throwable {186		TARGET.addRoot( 1 );187		188		{ boolean thrown = false;189			try {190				TARGET.addRoot( 2 );191			} catch (Throwable t) {192				thrown = true;193				org.junit.Assert.assertThat("AddRoot; AddRoot should throw NonEmptyTreeException", t, org.hamcrest.CoreMatchers.instanceOf(NonEmptyTreeException.class));194			}195			if(!thrown){196				org.junit.Assert.fail("AddRoot; AddRoot should throw NonEmptyTreeException: Expected Throwable NonEmptyTreeException");197			}198		}199	}200	@org.junit.Test()201	@jug.TestName("AddRoot; Ensure children() does not accept null positions")202	public void Test12() throws Throwable {203		TARGET.addRoot( 1 );204		205		{ boolean thrown = false;206			try {207				TARGET.children( null );208			} catch (Throwable t) {209				thrown = true;210				org.junit.Assert.assertThat("AddRoot; Ensure children() does not accept null positions", t, org.hamcrest.CoreMatchers.instanceOf(InvalidPositionException.class));211			}212			if(!thrown){213				org.junit.Assert.fail("AddRoot; Ensure children() does not accept null positions: Expected Throwable InvalidPositionException");214			}215		}216	}217	@org.junit.Test()218	@jug.TestName("AddRoot; Ensure isExternal() does not accept null positions")219	public void Test13() throws Throwable {220		TARGET.addRoot( 1 );221		222		{ boolean thrown = false;223			try {224				TARGET.isExternal( null );225			} catch (Throwable t) {226				thrown = true;227				org.junit.Assert.assertThat("AddRoot; Ensure isExternal() does not accept null positions", t, org.hamcrest.CoreMatchers.instanceOf(InvalidPositionException.class));228			}229			if(!thrown){230				org.junit.Assert.fail("AddRoot; Ensure isExternal() does not accept null positions: Expected Throwable InvalidPositionException");231			}232		}233	}234	@org.junit.Test()235	@jug.TestName("AddRoot; Ensure isInternal() does not accept null positions")236	public void Test14() throws Throwable {237		TARGET.addRoot( 1 );238		239		{ boolean thrown = false;240			try {241				TARGET.isInternal( null );242			} catch (Throwable t) {243				thrown = true;244				org.junit.Assert.assertThat("AddRoot; Ensure isInternal() does not accept null positions", t, org.hamcrest.CoreMatchers.instanceOf(InvalidPositionException.class));245			}246			if(!thrown){247				org.junit.Assert.fail("AddRoot; Ensure isInternal() does not accept null positions: Expected Throwable InvalidPositionException");248			}249		}250	}251	@org.junit.Test()252	@jug.TestName("AddRoot; Ensure isRoot() does not accept null positions")253	public void Test15() throws Throwable {254		TARGET.addRoot( 1 );255		256		{ boolean thrown = false;257			try {258				TARGET.isRoot( null );259			} catch (Throwable t) {260				thrown = true;261				org.junit.Assert.assertThat("AddRoot; Ensure isRoot() does not accept null positions", t, org.hamcrest.CoreMatchers.instanceOf(InvalidPositionException.class));262			}263			if(!thrown){264				org.junit.Assert.fail("AddRoot; Ensure isRoot() does not accept null positions: Expected Throwable InvalidPositionException");265			}266		}267	}268	@org.junit.Test()269	@jug.TestName("AddRoot; Ensure parent() does not accept null positions")270	public void Test16() throws Throwable {271		TARGET.addRoot( 1 );272		273		{ boolean thrown = false;274			try {275				TARGET.parent( null );276			} catch (Throwable t) {277				thrown = true;278				org.junit.Assert.assertThat("AddRoot; Ensure parent() does not accept null positions", t, org.hamcrest.CoreMatchers.instanceOf(InvalidPositionException.class));279			}280			if(!thrown){281				org.junit.Assert.fail("AddRoot; Ensure parent() does not accept null positions: Expected Throwable InvalidPositionException");282			}283		}284	}285	@org.junit.Test()286	@jug.TestName("AddRoot; Ensure parent( addRoot( 1 ) ) throws BoundaryViolationException")287	public void Test17() throws Throwable {288		289		{ boolean thrown = false;290			try {291				TARGET.parent( TARGET.addRoot( 1 ) );292			} catch (Throwable t) {293				thrown = true;294				org.junit.Assert.assertThat("AddRoot; Ensure parent( addRoot( 1 ) ) throws BoundaryViolationException", t, org.hamcrest.CoreMatchers.instanceOf(BoundaryViolationException.class));295			}296			if(!thrown){297				org.junit.Assert.fail("AddRoot; Ensure parent( addRoot( 1 ) ) throws BoundaryViolationException: Expected Throwable BoundaryViolationException");298			}299		}300	}301	@org.junit.Test()302	@jug.TestName("AddRoot; Ensure replace() does not accept null positions")303	public void Test18() throws Throwable {304		TARGET.addRoot( 1 );305		306		{ boolean thrown = false;307			try {308				TARGET.replace( null, 5 );309			} catch (Throwable t) {310				thrown = true;311				org.junit.Assert.assertThat("AddRoot; Ensure replace() does not accept null positions", t, org.hamcrest.CoreMatchers.instanceOf(InvalidPositionException.class));312			}313			if(!thrown){314				org.junit.Assert.fail("AddRoot; Ensure replace() does not accept null positions: Expected Throwable InvalidPositionException");315			}316		}317	}318	@org.junit.Test()319	@jug.TestName("AddRoot; Ensure attach does not allow null positions")320	public void Test19() throws Throwable {321		TARGET.addRoot( 1 );322		Position<Integer> lNullPosition = null;323		LinkedBinaryTree<Integer> T1 = new LinkedBinaryTree<Integer>();324		T1.addRoot( 1 );325		LinkedBinaryTree<Integer> T2 = new LinkedBinaryTree<Integer>();326		T2.addRoot( 2 );327		328		{ boolean thrown = false;329			try {330				TARGET.attach( lNullPosition, T1, T2 );331			} catch (Throwable t) {332				thrown = true;333				org.junit.Assert.assertThat("AddRoot; Ensure attach does not allow null positions", t, org.hamcrest.CoreMatchers.instanceOf(InvalidPositionException.class));334			}335			if(!thrown){336				org.junit.Assert.fail("AddRoot; Ensure attach does not allow null positions: Expected Throwable InvalidPositionException");337			}338		}339	}340}...

Source:HamcrestCoreMatchersTest.java

...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  @Test
...

Source:ListExceptions.java

...24			try {25				T.before(p);26			} catch (Throwable t) {27				thrown = true;28				org.junit.Assert.assertThat("T.before(p) throws exception", t, org.hamcrest.CoreMatchers.instanceOf(IllegalArgumentException.class));29			}30			if(!thrown){31				org.junit.Assert.fail("T.before(p) throws exception: Expected Throwable IllegalArgumentException");32			}33		}34	}35	@org.junit.Test()36	@jug.TestName("T.after(p) throws exception")37	public void Test2() throws Throwable {38		Position<String> p = new TestNode<String>("Hi");39		40		{ boolean thrown = false;41			try {42				T.after(p);43			} catch (Throwable t) {44				thrown = true;45				org.junit.Assert.assertThat("T.after(p) throws exception", t, org.hamcrest.CoreMatchers.instanceOf(IllegalArgumentException.class));46			}47			if(!thrown){48				org.junit.Assert.fail("T.after(p) throws exception: Expected Throwable IllegalArgumentException");49			}50		}51	}52	@org.junit.Test()53	@jug.TestName("T.addBefore(p,\"hi\")) throws exception")54	public void Test3() throws Throwable {55		Position<String> p = new TestNode<String>("Hi");56		57		{ boolean thrown = false;58			try {59				T.addBefore(p, "hi");60			} catch (Throwable t) {61				thrown = true;62				org.junit.Assert.assertThat("T.addBefore(p,\"hi\")) throws exception", t, org.hamcrest.CoreMatchers.instanceOf(IllegalArgumentException.class));63			}64			if(!thrown){65				org.junit.Assert.fail("T.addBefore(p,\"hi\")) throws exception: Expected Throwable IllegalArgumentException");66			}67		}68	}69	@org.junit.Test()70	@jug.TestName("T.addAfter(p,\"hi\")) throws exception")71	public void Test4() throws Throwable {72		Position<String> p = new TestNode<String>("Hi");73		74		{ boolean thrown = false;75			try {76				T.addAfter(p, "hi");77			} catch (Throwable t) {78				thrown = true;79				org.junit.Assert.assertThat("T.addAfter(p,\"hi\")) throws exception", t, org.hamcrest.CoreMatchers.instanceOf(IllegalArgumentException.class));80			}81			if(!thrown){82				org.junit.Assert.fail("T.addAfter(p,\"hi\")) throws exception: Expected Throwable IllegalArgumentException");83			}84		}85	}86	@org.junit.Test()87	@jug.TestName("T.set(p,\"hi you\")) throws exception")88	public void Test5() throws Throwable {89		Position<String> p = new TestNode<String>("Hi");90		91		{ boolean thrown = false;92			try {93				T.set(p, "hi you");94			} catch (Throwable t) {95				thrown = true;96				org.junit.Assert.assertThat("T.set(p,\"hi you\")) throws exception", t, org.hamcrest.CoreMatchers.instanceOf(IllegalArgumentException.class));97			}98			if(!thrown){99				org.junit.Assert.fail("T.set(p,\"hi you\")) throws exception: Expected Throwable IllegalArgumentException");100			}101		}102	}103	@org.junit.Test()104	@jug.TestName("T.remove(p)) throws exception")105	public void Test6() throws Throwable {106		Position<String> p = new TestNode<String>("Hi");107		108		{ boolean thrown = false;109			try {110				T.remove(p);111			} catch (Throwable t) {112				thrown = true;113				org.junit.Assert.assertThat("T.remove(p)) throws exception", t, org.hamcrest.CoreMatchers.instanceOf(IllegalArgumentException.class));114			}115			if(!thrown){116				org.junit.Assert.fail("T.remove(p)) throws exception: Expected Throwable IllegalArgumentException");117			}118		}119	}120}...

Source:AssertThatDemoTest.java

...11import static org.hamcrest.CoreMatchers.endsWith;12import static org.hamcrest.CoreMatchers.equalTo;13import static org.hamcrest.CoreMatchers.everyItem;14import static org.hamcrest.CoreMatchers.hasItem;15import static org.hamcrest.CoreMatchers.instanceOf;16import static org.hamcrest.CoreMatchers.is;17import static org.hamcrest.CoreMatchers.isA;18import static org.hamcrest.CoreMatchers.not;19import static org.hamcrest.CoreMatchers.sameInstance;20import static org.hamcrest.CoreMatchers.startsWith;21import static org.junit.Assert.assertThat;22public class AssertThatDemoTest {23    @Test24    public void testAssertThat() {25        // assertThatçåºæ¬åçæ¯ï¼ç¨æå®çå¹éå¨å¹éæå®çå®éå¼ãå¦æä¸å¹éï¼åçæéè¯¯ä¿¡æ¯ï¼å¹¶æåºAssertionErrorå¼å¸¸ã26        // public static <T> void assertThat(String reason, T actual, Matcher<? super T> matcher) {27        //     if (!matcher.matches(actual)) {28        //         Description description = new StringDescription();29        //         description.appendText(reason)30        //                    .appendText("\nExpected: ")31        //                    .appendDescriptionOf(matcher)32        //                    .appendText("\n     but: ");33        //         matcher.describeMismatch(actual, description);34        //35        //         throw new AssertionError(description.toString());36        //     }37        // }38        assertThat("Hello, World!", is("Hello, World!"));39        assertThat("Hello, World!", equalTo("Hello, World!"));40        assertThat("Hello, World!", startsWith("Hello"));41        assertThat("Hello, World!", endsWith("World!"));42        assertThat("Hello, World!", containsString("llo, Wor"));43        assertThat(6, not(8));44        assertThat("Hello, World!", anyOf(startsWith("Hello"), endsWith("Welcome")));45        assertThat("Hello, World!", either(startsWith("Hello")).or(endsWith("Welcome")));46        assertThat("Hello, World!", allOf(startsWith("Hello"), endsWith("World!")));47        assertThat("Hello, World!", both(startsWith("Hello")).and(endsWith("World!")));48        assertThat("Hello, World!", isA(String.class));49        assertThat("Hello, World!", anything());50        assertThat("Hello, World!", instanceOf(String.class));51        Object o = new Object();52        assertThat(o, sameInstance(o));53        assertThat(asList(1, 2, 3), hasItem(3));54        assertThat(asList(1, 2, 3), everyItem(not(8)));55        // èªå®ä¹MatcheråèassertThat("Is fails", "Hello, World!", is("Hi, World!"))çå®ä¹åå¤±è´¥æ¥åã56        // å¯ä»¥å¨ä¸ä¸ªç±»æ¯org.hamcrest.CoreMatchersçå·¥å·ç±»ä¸æä¾éææ¹æ³ï¼è¯¥æ¹æ³è¿åèªå®ä¹Matcherã57        assertThat(Set.of(1, 2, 3), new HasElement<>(2));58    }59}...

Source:AssertionTest.java

...11import static org.hamcrest.CoreMatchers.containsString;12import static org.hamcrest.CoreMatchers.equalTo;13import static org.hamcrest.CoreMatchers.everyItem;14import static org.hamcrest.CoreMatchers.hasItems;15import static org.hamcrest.CoreMatchers.instanceOf;16import static org.hamcrest.CoreMatchers.is;17import static org.hamcrest.CoreMatchers.isA;18import static org.hamcrest.CoreMatchers.not;19import static org.hamcrest.CoreMatchers.sameInstance;20import static org.hamcrest.CoreMatchers.startsWith;21import static org.junit.Assert.assertArrayEquals;22import static org.junit.Assert.assertEquals;23import static org.junit.Assert.assertFalse;24import static org.junit.Assert.assertNotNull;25import static org.junit.Assert.assertNotSame;26import static org.junit.Assert.assertNull;27import static org.junit.Assert.assertSame;28import static org.junit.Assert.assertThat;29import static org.junit.Assert.assertTrue;30import static org.junit.Assert.fail;31public class AssertionTest {32    @Test33    public void testWithEquals() {34        // Given35        // When36        String substring = "test".substring(1);37        // Then38        assertTrue(substring.equals("est"));39        assertEquals(substring, "est");40        assertThat(substring, equalTo("est"));41    }42    @Test43    public void testInstance() {44        // Given45        int[] first = new int[0];46        int[] second = new int[0];47        // When48        // Then49        assertTrue(first == first);50        assertSame(first, first);51        assertNotSame(first, second);52        assertThat(first, sameInstance(first));53        assertThat(first, instanceOf(int[].class));54    }55    @Test56    public void testArray() {57        // Given58        int[] first = new int[]{1, 2, 3};59        int[] second = new int[]{1, 2, 3};60        int[] third = new int[]{1, 2};61        // When62        // Then63        assertTrue(Arrays.equals(first, second));64        assertArrayEquals(first, second);65    }66    @Test67    public void testList() {...

Source:JavaLocalClassTest.java

1package org.jboss.forge.test.roaster.model;2import static org.hamcrest.CoreMatchers.allOf;3import static org.hamcrest.CoreMatchers.equalTo;4import static org.hamcrest.CoreMatchers.everyItem;5import static org.hamcrest.CoreMatchers.instanceOf;6import java.util.List;7import org.hamcrest.BaseMatcher;8import org.hamcrest.CoreMatchers;9import org.hamcrest.Description;10import org.jboss.forge.roaster.Roaster;11import org.jboss.forge.roaster.model.JavaClass;12import org.jboss.forge.roaster.model.JavaInterface;13import org.jboss.forge.roaster.model.source.JavaClassSource;14import org.jboss.forge.roaster.model.source.JavaSource;15import org.junit.Assert;16import org.junit.Test;17public class JavaLocalClassTest18{19   @Test20   public void testLocalClassMatch()21   {22      JavaClassSource source = Roaster.parse(JavaClassSource.class,23               getClass().getResourceAsStream("/org/jboss/forge/grammar/java/MockLocalClass.java"));24      Assert.assertFalse(source.isLocalClass());25      List<JavaSource<?>> nestedTypes = source.getNestedTypes();26      Assert.assertThat(nestedTypes.size(), equalTo(17));27      Assert.assertThat(nestedTypes.get(0), instanceOf(JavaInterface.class));28      Assert.assertThat(nestedTypes.subList(1, 17),29               everyItem(allOf(CoreMatchers.<JavaSource<?>> instanceOf(JavaClass.class), new IsLocalMatcher())));30   }31   private class IsLocalMatcher extends BaseMatcher<JavaSource<?>>32   {33      @Override34      public boolean matches(Object item)35      {36         if (item instanceof JavaClass)37         {38            return ((JavaClass<?>) item).isLocalClass();39         }40         return false;41      }42      @Override43      public void describeTo(Description description)...

Source:MatcherExample.java

1package com.onlyfullstack.unittesting;2import org.junit.Test;3import static org.hamcrest.CoreMatchers.containsString;4import static org.hamcrest.CoreMatchers.endsWith;5import static org.hamcrest.CoreMatchers.instanceOf;6import static org.hamcrest.CoreMatchers.is;7import static org.hamcrest.CoreMatchers.not;8import static org.hamcrest.CoreMatchers.notNullValue;9import static org.hamcrest.CoreMatchers.sameInstance;10import static org.hamcrest.CoreMatchers.startsWith;11import static org.junit.Assert.assertThat;12/**13 * TODO: Javadoc14 */15public final class MatcherExample {16    @Test17    public void compare2Strings_with_is_matcher() {18        String name = "Saurabh";19        String newName = "Saurabh";20        assertThat(name, is(newName));21    }22    @Test23    public void compare2Strings_notEquals_with_not_Matcher() {24        String name = "Saurabh";25        String newName = "OnlyFullstack";26        assertThat(name, not(newName));27    }28    @Test29    public void startsWith_example() {30        String name = "OnlyFullstack";31        String newName = "Only";32        assertThat(name, startsWith(newName));33    }34    @Test35    public void endsWith_example() {36        String name = "OnlyFullstack";37        String newName = "stack";38        assertThat(name, endsWith(newName));39    }40    @Test41    public void containsString_example() {42        String name = "OnlyFullstack";43        String newName = "Full";44        assertThat(name, containsString(newName));45    }46    @Test47    public void notNullValue_example() {48        String name = "OnlyFullstack";49        assertThat(name, notNullValue());50    }51    @Test52    public void sameInstance_instanceOf_example() {53        String name = "OnlyFullstack";54        assertThat(name, sameInstance(name));55        assertThat(name, instanceOf(String.class));56    }57}...

Source:HamcrestTest.java

...3import 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}
...

instanceOf

Using AI Code Generation

1import static org.hamcrest.CoreMatchers.instanceOf;2import static org.hamcrest.MatcherAssert.assertThat;3import static org.hamcrest.Matchers.anyOf;4import static org.hamcrest.Matchers.anything;5import static org.hamcrest.Matchers.both;6import static org.hamcrest.Matchers.containsString;7import static org.hamcrest.Matchers.either;8import static org.hamcrest.Matchers.equalTo;9import static org.hamcrest.Matchers.everyItem;10import static org.hamcrest.Matchers.hasEntry;11import static org.hamcrest.Matchers.hasItem;12import static org.hamcrest.Matchers.hasItems;13import static org.hamcrest.Matchers.hasKey;14import static org.hamcrest.Matchers.hasValue;15import static org.hamcrest.Matchers.is;16import static org.hamcrest.Matchers.not;17import static org.hamcrest.Matchers.nullValue;18import static org.hamcrest.Matchers.sameInstance;19import static org.hamcrest.Matchers.startsWith;20import java.util.Arrays;21import java.util.HashMap;22import java.util.List;23import java.util.Map;24import java.util.stream.Collectors;25import java.util.stream.Stream;26import org.junit.Test;27public class HamcrestMatchersTest {28	public void test() {

instanceOf

Using AI Code Generation

1import static org.hamcrest.CoreMatchers.instanceOf;2import static org.hamcrest.MatcherAssert.assertThat;3import java.util.ArrayList;4import java.util.List;5public class InstanceOfExample {6	public static void main(String[] args) {7		List<String> list = new ArrayList<String>();8		assertThat(list, instanceOf(ArrayList.class));9	}10}11How to use is() method of org.hamcrest.CoreMatchers class in Java - August 4, 201912How to use anyOf() method of org.hamcrest.CoreMatchers class in Java - August 4, 2019

instanceOf

Using AI Code Generation

1import static org.hamcrest.CoreMatchers.instanceOf;2import static org.junit.Assert.assertThat;3import org.junit.Test;4public class InstanceOfTest {5    public void testInstanceOf() {6        assertThat("java", instanceOf(String.class));7    }8}9    at org.junit.Assert.assertEquals(Assert.java:115)10    at org.junit.Assert.assertEquals(Assert.java:144)11    at org.hamcrest.MatcherAssert.assertThat(MatcherAssert.java:20)12    at org.hamcrest.MatcherAssert.assertThat(MatcherAssert.java:8)13    at com.journaldev.junit.InstanceOfTest.testInstanceOf(InstanceOfTest.java:11)14import static org.hamcrest.CoreMatchers.instanceOf;15import static org.junit.Assert.assertThat;16import org.junit.Test;17public class InstanceOfTest {18    public void testInstanceOf() {19        assertThat("java", instanceOf(Object.class));20    }21}22    at org.junit.Assert.assertEquals(Assert.java:115)23    at org.junit.Assert.assertEquals(Assert.java:144)24    at org.hamcrest.MatcherAssert.assertThat(MatcherAssert.java:20)25    at org.hamcrest.MatcherAssert.assertThat(MatcherAssert.java:8)26    at com.journaldev.junit.InstanceOfTest.testInstanceOf(InstanceOfTest.java:11)27import static org.hamcrest.CoreMatchers.is;28import static org.junit.Assert.assertThat;29import org.junit.Test;30public class InstanceOfTest {31    public void testInstanceOf() {32        assertThat("java", is(instanceOf(String.class

instanceOf

Using AI Code Generation

1import org.hamcrest.CoreMatchers2assertThat 1, CoreMatchers.instanceOf(Integer)3assertThat 1, CoreMatchers.instanceOf(Number)4assertThat 1, CoreMatchers.instanceOf(Object)5assertThat 1, CoreMatchers.instanceOf(Serializable)6assertThat 1, CoreMatchers.instanceOf(Comparable)7assertThat 1, CoreMatchers.instanceOf(Comparable.class)8assertThat 1, CoreMatchers.instanceOf(Number.class)9assertThat 1, CoreMatchers.instanceOf(Object.class)10assertThat 1, CoreMatchers.instanceOf(Serializable.class)11assertThat 1, CoreMatchers.instanceOf(Comparable.class)12assertThat 1, CoreMatchers.instanceOf(Integer.class)13assertThat 1, instanceOf(Integer)14assertThat 1, instanceOf(Number)15assertThat 1, instanceOf(Object)16assertThat 1, instanceOf(Serializable)17assertThat 1, instanceOf(Comparable)18assertThat 1, instanceOf(Comparable.class)19assertThat 1, instanceOf(Number.class)20assertThat 1, instanceOf(Object.class)21assertThat 1, instanceOf(Serializable.class)22assertThat 1, instanceOf(Comparable.class)23assertThat 1, instanceOf(Integer.class)24assertThat 1, CoreMatchers.not(CoreMatchers.instanceOf(String))25assertThat 1, CoreMatchers.not(CoreMatchers.instanceOf(Number))26assertThat 1, CoreMatchers.not(CoreMatchers.instanceOf(Object))27assertThat 1, CoreMatchers.not(CoreMatchers.instanceOf(Serializable))28assertThat 1, CoreMatchers.not(CoreMatchers.instanceOf(Comparable))29assertThat 1, CoreMatchers.not(CoreMatchers.instanceOf(Comparable.class))30assertThat 1, CoreMatchers.not(CoreMatchers.instanceOf(Number.class))31assertThat 1, CoreMatchers.not(CoreMatchers.instanceOf(Object.class))32assertThat 1, CoreMatchers.not(CoreMatchers.instanceOf(Serializable.class))33assertThat 1, CoreMatchers.not(CoreMatchers.instanceOf(Comparable.class))34assertThat 1, CoreMatchers.not(CoreMatchers.instanceOf(Integer.class))35assertThat 1, not(instanceOf(String))36assertThat 1, not(instanceOf(Number))37assertThat 1, not(instanceOf(Object))

instanceOf

Using AI Code Generation

1import org.hamcrest.CoreMatchers.instanceOf2import org.hamcrest.MatcherAssert.assertThat3def "test instanceOf"() {4    assertThat(1, instanceOf(Integer))5}6import org.hamcrest.CoreMatchers.isA7import org.hamcrest.MatcherAssert.assertThat8def "test isA"() {9    assertThat(1, isA(Integer))10}11import org.hamcrest.CoreMatchers.is12import org.hamcrest.MatcherAssert.assertThat13def "test is"() {14    assertThat(1, is(1))15}16import org.hamcrest.CoreMatchers.equalTo17import org.hamcrest.MatcherAssert.assertThat18def "test equalTo"() {19    assertThat(1, equalTo(1))20}21import org.hamcrest.CoreMatchers.equalToIgnoringCase22import org.hamcrest.MatcherAssert.assertThat23def "test equalToIgnoringCase"() {24    assertThat("abc", equalToIgnoringCase("ABC"))25}26import org.hamcrest.CoreMatchers.equalToIgnoringWhiteSpace27import org.hamcrest.MatcherAssert.assertThat28def "test equalToIgnoringWhiteSpace"() {29    assertThat("abc", equalToIgnoringWhiteSpace("a b c"))30}31import org.hamcrest.CoreMatchers.equalToObject32import org.hamcrest.MatcherAssert.assertThat33def "test equalToObject"() {34    assertThat("abc", equalToObject("abc"))35}36import org.hamcrest.CoreMatchers.isSameAs37import org.hamcrest.MatcherAssert.assertThat38def "test isSameAs"() {39    assertThat("abc", isSameAs("abc"))40}41import org.hamcrest.CoreMatchers.isNotSameAs42import org.hamcrest.MatcherAssert.assertThat43def "test isNotSameAs"() {44    assertThat("abc", isNotSameAs("abc"))45}46import org.hamcrest.CoreMatchers.nullValue47import org.hamcrest.MatcherAssert.assertThat48def "test isNullValue"() {

instanceOf

Using AI Code Generation

1assertThat("Object is not of the expected class", object, instanceOf(expectedClass));2assertThat("Object is not of the expected class", object, isA(expectedClass));3assertThat("Object is not of the expected class", object, is(expectedClass));4assertThat("Object is not of the expected class", expectedClass.isInstance(object), is(true));5assertThat("Object is not of the expected class", expectedClass.isAssignableFrom(object.getClass()), is(true));6assertThat("Object is not of the expected class", object.getClass().isAssignableFrom(expectedClass), is(true));7assertThat("Object is not of the expected class", object.getClass().isAssignableFrom(expectedClass), is(true));8assertThat("Object is not of the expected class", object.getClass().isAssignableFrom(expectedClass), is(true));9assertThat("Object is not of the expected class", object.getClass().isAssignableFrom(expectedClass), is(true));10assertThat("Object is not of the expected class", object.getClass().isAssignableFrom(expectedClass), is(true));11assertThat("Object is not of the expected class", object.getClass().isAssignableFrom(expectedClass), is(true));12assertThat("Object is not of the

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.