Best junit code snippet using org.hamcrest.core.IsInstanceOf.matches
Source: DiaryListActivityTest.java
...48 IsInstanceOf.<View>instanceOf(android.view.ViewGroup.class),49 1),50 1),51 isDisplayed()));52 editText.check(matches(withText("Title")));53 pressBack();54 pressBack();55 }56 private static Matcher<View> childAtPosition(57 final Matcher<View> parentMatcher, final int position) {58 return new TypeSafeMatcher<View>() {59 @Override60 public void describeTo(Description description) {61 description.appendText("Child at position " + position + " in parent ");62 parentMatcher.describeTo(description);63 }64 @Override65 public boolean matchesSafely(View view) {66 ViewParent parent = view.getParent();67 return parent instanceof ViewGroup && parentMatcher.matches(parent)68 && view.equals(((ViewGroup) parent).getChildAt(position));69 }70 };71 }72}...
Source: InstanceOf.java
...35 return matcher;36 }37 38 @Override39 public boolean matches(Object o) {40 return matcher().matches(o);41 }42 43 @Override44 public boolean matches(Object item, Description mismatch) {45 return quickMatch(matcher(), item, mismatch);46 }4748 @Override49 public void describeMismatch(Object item, Description description) {50 //if (prependIs) description.appendText("was ");51 matcher().describeMismatch(item, description);52 }5354 @Override55 public void describeTo(Description description) {56 if (prependIs) description.appendText("is ");57 matcher().describeTo(description);58 }
...
Source: Behaviour.java
...11import org.mockito.Mockito;12import org.mockito.internal.progress.OngoingStubbing;13public class Behaviour {14 15 protected <T> void ensureThat(T obj, Matcher<T> matches) {16 MatcherAssert.assertThat(obj, matches);17 }18 protected <T> IsNull<T> isNull() {19 return new IsNull<T>();20 }21 protected <T> Matcher<T> eq(T object) {22 return new IsEqual<T>(object);23 }24 25 protected <T extends Comparable<T>> IsLessThan<T> isLessThan(T object) {26 return new IsLessThan<T>(object);27 }28 29 protected <T extends Comparable<T>> IsGreaterThanOrEq<T> isGreaterThanOrEq(T object) {30 return new IsGreaterThanOrEq<T>(object);31 }32 33 protected <T> T mock(Class<T> classToMock) {34 return Mockito.mock(classToMock);35 }36 protected <T> T verify(T mock) {37 return Mockito.verify(mock);38 }39 protected <T> IsInstanceOf isA(Class<T> clazz) {40 return new IsInstanceOf(clazz);41 }42 43 44 protected <T> OngoingStubbing<T> stub(T methodCall) {45 return Mockito.stub(methodCall);46 }47 protected void ensureThat(boolean expression) {48 Assert.assertTrue(expression);49 }50 protected Matcher<String> contains(String string) {51 return new StringContains(string);52 }53 public class IsGreaterThanOrEq<T extends Comparable<T>> extends TypeSafeMatcher<T> {54 private final Comparable<T> compareTo;55 56 public IsGreaterThanOrEq(Comparable<T> compareTo) {57 this.compareTo = compareTo;58 }59 60 public boolean matchesSafely(T item) {61 return compareTo.compareTo(item) <= 0;62 }63 64 public void describeTo(Description description) {65 description.appendText("a value greater than ");66 description.appendValue(compareTo);67 }68 }69 70 public class IsLessThan<T extends Comparable<T>> extends TypeSafeMatcher<T> {71 private final Comparable<T> compareTo;72 73 public IsLessThan(Comparable<T> compareTo) {74 this.compareTo = compareTo;75 }76 77 public boolean matchesSafely(T item) {78 return compareTo.compareTo(item) > 0;79 }80 81 public void describeTo(Description description) {82 description.appendText("a value greater than ");83 description.appendValue(compareTo);84 }85 }86}...
Source: IsInstanceOfTest.java
...27 describesActualClassInMismatchMessage() {28 assertMismatchDescription("\"some text\" is a java.lang.String", instanceOf(Number.class), "some text");29 }30 @Test public void31 matchesPrimitiveTypes() {32 assertMatches(any(boolean.class), true);33 assertMatches(any(byte.class), (byte)1);34 assertMatches(any(char.class), 'x');35 assertMatches(any(double.class), 5.0);36 assertMatches(any(float.class), 5.0f);37 assertMatches(any(int.class), 2);38 assertMatches(any(long.class), 4L);39 assertMatches(any(short.class), (short)1);40 }41 @Test public void42 instanceOfRequiresACastToReturnTheCorrectTypeForUseInJMock() {43 @SuppressWarnings("unused")44 Integer anInteger = (Integer)with(instanceOf(Integer.class));45 }...
Source: Is.java
...40 public void describeTo(Description description) {41 description.appendText("is ").appendDescriptionOf(this.matcher);42 }43 @Override44 public boolean matches(Object object) {45 return this.matcher.matches(object);46 }47}
Source: C1304Is.java
...8 private final Matcher<T> matcher;9 public C1304Is(Matcher<T> matcher2) {10 this.matcher = matcher2;11 }12 public boolean matches(Object arg) {13 return this.matcher.matches(arg);14 }15 public void describeTo(Description description) {16 description.appendText("is ").appendDescriptionOf(this.matcher);17 }18 public void describeMismatch(Object item, Description mismatchDescription) {19 this.matcher.describeMismatch(item, mismatchDescription);20 }21 @Factory22 /* renamed from: is */23 public static <T> Matcher<T> m63is(Matcher<T> matcher2) {24 return new C1304Is(matcher2);25 }26 @Factory27 /* renamed from: is */...
Source: IsInstanceOf.java
...14/* 14: */ {15/* 15:24 */ this.theClass = theClass;16/* 16: */ }17/* 17: */ 18/* 18: */ public boolean matches(Object item)19/* 19: */ {20/* 20:28 */ return this.theClass.isInstance(item);21/* 21: */ }22/* 22: */ 23/* 23: */ public void describeTo(Description description)24/* 24: */ {25/* 25:32 */ description.appendText("an instance of ").appendText(this.theClass.getName());26/* 26: */ }27/* 27: */ 28/* 28: */ @Factory29/* 29: */ public static Matcher<Object> instanceOf(Class<?> type)30/* 30: */ {31/* 31:41 */ return new IsInstanceOf(type);32/* 32: */ }
...
Source: IsNotTest.java
1package org.hamcrest.core;2import org.hamcrest.Matcher;3import org.junit.Test;4import static org.hamcrest.AbstractMatcherTest.*;5import static org.hamcrest.core.IsEqual.equalTo;6import static org.hamcrest.core.IsInstanceOf.instanceOf;7import static org.hamcrest.core.IsNot.not;8public final class IsNotTest {9 @Test public void10 copesWithNullsAndUnknownTypes() {11 Matcher<String> matcher = not("something");12 assertNullSafe(matcher);13 assertUnknownTypeSafe(matcher);14 }15 @Test public void16 evaluatesToTheTheLogicalNegationOfAnotherMatcher() {17 final Matcher<String> matcher = not(equalTo("A"));18 assertMatches(matcher, "B");19 assertDoesNotMatch(matcher, "A");20 }21 @Test public void22 providesConvenientShortcutForNotEqualTo() {23 final Matcher<String> matcher = not("A");24 assertMatches(matcher, "B");25 assertDoesNotMatch(matcher, "A");26 }27 @Test public void28 usesDescriptionOfNegatedMatcherWithPrefix() {29 assertDescription("not an instance of java.lang.String", not(instanceOf(String.class)));30 assertDescription("not \"A\"", not("A"));31 }32}...
matches
Using AI Code Generation
1import org.hamcrest.core.IsInstanceOf2assertThat x, instanceOf(Integer)3assertThat y, instanceOf(Integer)4assertThat x, instanceOf(Number)5assertThat y, instanceOf(Number)6assertThat x, instanceOf(IsInstanceOf.class)7assertThat y, instanceOf(IsInstanceOf.class)8assertThat x, instanceOf(Object)9assertThat y, instanceOf(Object)10assertThat x, instanceOf(Object.class)11assertThat y, instanceOf(Object.class)12assertThat x, instanceOf(String)13assertThat y, instanceOf(String)14assertThat x, instanceOf(String.class)15assertThat y, instanceOf(String.class)16assertThat x, instanceOf(String)17assertThat y, instanceOf(String)18assertThat x, instanceOf(String.class)19assertThat y, instanceOf(String.class)20assertThat x, instanceOf(CharSequence.class)21assertThat y, instanceOf(CharSequence.class)22assertThat x, instanceOf(CharSequence)23assertThat y, instanceOf(CharSequence)24assertThat x, instanceOf(Number)25assertThat y, instanceOf(Number)26assertThat x, instanceOf(Number.class)27assertThat y, instanceOf(Number.class)28assertThat x, instanceOf(Number)29assertThat y, instanceOf(Number)30assertThat x, instanceOf(Number.class)31assertThat y, instanceOf(Number.class)32assertThat x, instanceOf(Integer)33assertThat y, instanceOf(Integer)34assertThat x, instanceOf(Integer.class)35assertThat y, instanceOf(Integer.class)36assertThat x, instanceOf(Integer)37assertThat y, instanceOf(Integer)38assertThat x, instanceOf(Integer.class)39assertThat y, instanceOf(Integer.class)40assertThat x, instanceOf(CharSequence.class)41assertThat y, instanceOf(CharSequence.class)42assertThat x, instanceOf(CharSequence)43assertThat y, instanceOf(CharSequence)44assertThat x, instanceOf(CharSequence.class)45assertThat y, instanceOf(CharSequence.class)46assertThat x, instanceOf(CharSequence)47assertThat y, instanceOf(CharSequence)48assertThat x, instanceOf(CharSequence.class)49assertThat y, instanceOf(CharSequence.class)50assertThat x, instanceOf(CharSequence)51assertThat y, instanceOf(CharSequence)52assertThat x, instanceOf(CharSequence.class)53assertThat y, instanceOf(CharSequence.class)54assertThat x, instanceOf(CharSequence)55assertThat y, instanceOf(CharSequence)56assertThat x, instanceOf(CharSequence.class)
matches
Using AI Code Generation
1import static org.hamcrest.CoreMatchers.*;2import static org.hamcrest.MatcherAssert.assertThat;3public class IsInstanceOfTest {4 public static void main(String[] args) {5 assertThat(4, instanceOf(Integer.class));6 assertThat("Hello", instanceOf(String.class));7 assertThat(4, not(instanceOf(String.class)));8 }9}10org.hamcrest.CoreMatchers.instanceOf(java.lang.Integer)11org.hamcrest.CoreMatchers.instanceOf(java.lang.String)12org.hamcrest.core.IsNot.instanceOf(java.lang.String)13org.hamcrest.CoreMatchers.instanceOf(java.lang.Integer)14org.hamcrest.CoreMatchers.instanceOf(java.lang.String)15org.hamcrest.core.IsNot.instanceOf(java.lang.String)
matches
Using AI Code Generation
1import org.hamcrest.core.IsInstanceOf2import org.hamcrest.core.IsNot3import org.hamcrest.core.StringContains4import org.junit.Assert.assertThat5import org.junit.Test6class AssertThatTest {7 fun testAssertThat() {8 assertThat("abc", IsInstanceOf(String::class.java))9 assertThat("abc", IsNot(IsInstanceOf(Integer::class.java)))10 assertThat("abc", StringContains("a"))11 assertThat("abc", IsNot(StringContains("d")))12 }13}
matches
Using AI Code Generation
1import org.hamcrest.core.IsInstanceOf2import org.hamcrest.core.IsNot3assertThat(42, IsInstanceOf(Integer))4assertThat(42, IsNot(IsInstanceOf(String)))5assertThat("42", IsNot(IsInstanceOf(Integer)))6assertThat("42", IsInstanceOf(String))7import org.hamcrest.core.IsNot8import org.hamcrest.core.IsInstanceOf9assertThat(42, IsInstanceOf(Integer))10assertThat(42, IsNot(IsInstanceOf(String)))11assertThat("42", IsNot(IsInstanceOf(Integer)))12assertThat("42", IsInstanceOf(String))13import org.hamcrest.core.IsNot14import org.hamcrest.core.IsInstanceOf15assertThat(42, IsInstanceOf(Integer))16assertThat(42, IsNot(IsInstanceOf(String)))17assertThat("42", IsNot(IsInstanceOf(Integer)))18assertThat("42", IsInstanceOf(String))19import org.hamcrest.core.IsNot20import org.hamcrest.core.IsInstanceOf21assertThat(42, IsInstanceOf(Integer))22assertThat(42, IsNot(IsInstanceOf(String)))23assertThat("42", IsNot(IsInstanceOf(Integer)))24assertThat("42", IsInstanceOf(String))25import org.hamcrest.core.IsNot26import org.hamcrest.core.IsInstanceOf27assertThat(42, IsInstanceOf(Integer))28assertThat(42, IsNot(IsInstanceOf(String)))29assertThat("42", IsNot(IsInstanceOf(Integer)))30assertThat("42", IsInstanceOf(String))31import org.hamcrest.core.IsNot32import org.hamcrest.core.IsInstanceOf33assertThat(42, IsInstanceOf(Integer))34assertThat(42, IsNot(IsInstanceOf(String)))35assertThat("42", IsNot(IsInstanceOf(Integer)))36assertThat("42", IsInstanceOf(String))37import org.hamcrest.core.IsNot38import org.hamcrest.core.IsInstanceOf39assertThat(42, IsInstanceOf(Integer))40assertThat(42, IsNot(IsInstanceOf(String)))41assertThat("42", IsNot(IsInstanceOf(Integer)))42assertThat("42", IsInstanceOf(String))43import org.hamcrest.core.IsNot44import org.hamcrest.core.IsInstanceOf45assertThat(42, IsInstanceOf(Integer))46assertThat(42, IsNot(IsInstanceOf(String)))47assertThat("42", IsNot(IsInstanceOf(Integer)))48assertThat("42", IsInstanceOf(String))49import org.hamcrest.core.IsNot50import org.hamcrest.core.IsInstanceOf51assertThat(42, IsInstanceOf(Integer))52assertThat(42, IsNot(IsInstanceOf(String)))53assertThat("42", IsNot(IsInstanceOf(Integer)))54assertThat("42", IsInstanceOf(String))55import org.hamcrest.core.IsNot56import org.hamcrest.core.IsInstanceOf
matches
Using AI Code Generation
1import static org.hamcrest.CoreMatchers.instanceOf2import static org.hamcrest.MatcherAssert.assertThat3assertThat(result, instanceOf(String))4assertThat(result, instanceOf(Object))5import static org.hamcrest.CoreMatchers.is6import static org.hamcrest.MatcherAssert.assertThat7assertThat(result, is(String))8assertThat(result, is(Object))9import static org.hamcrest.CoreMatchers.isA10import static org.hamcrest.MatcherAssert.assertThat11assertThat(result, isA(String))12assertThat(result, isA(Object))13import static org.hamcrest.CoreMatchers.allOf14import static org.hamcrest.MatcherAssert.assertThat15assertThat(result, allOf(instanceOf(String), instanceOf(Object)))16import static org.hamcrest.CoreMatchers.anyOf17import static org.hamcrest.MatcherAssert.assertThat18assertThat(result, anyOf(instanceOf(String), instanceOf(Object)))19import static org.hamcrest.CoreMatchers.not20import static org.hamcrest.MatcherAssert.assertThat21assertThat(result, not(instanceOf(Object)))22import static org.hamcrest.CoreMatchers.equalTo23import static org.hamcrest.MatcherAssert.assertThat24assertThat(result, equalTo("abc"))25import static org.hamcrest.CoreMatchers.equalToIgnoringCase26import static org.hamcrest.MatcherAssert.assertThat27assertThat(result, equalToIgnoringCase("ABC"))28import static org.hamcrest.CoreMatchers.equalToIgnoringWhiteSpace29import static org.hamcrest.MatcherAssert.assertThat30assertThat(result, equalToIgnoringWhiteSpace("abc"))31import static org.hamcrest.CoreMatchers.sameInstance32import static org.hamcrest.MatcherAssert.assertThat33assertThat(result, sameInstance("abc"))34import static
matches
Using AI Code Generation
1package org.apache.commons.math3.analysis.function;2import static org.junit.Assert.assertThat;3import static org.hamcrest.core.IsInstanceOf.instanceOf;4import org.junit.Test;5public class CosTest {6 public void testEvaluate() {7 Cos cos = new Cos();8 assertThat(cos.evaluate(0), instanceOf(Double.class));9 assertThat(cos.evaluate(1), instanceOf(Double.class));10 assertThat(cos.evaluate(-1), instanceOf(Double.class));11 }12}13import static org.junit.Assert.assertThat;14import static org.hamcrest.core.IsInstanceOf.instanceOf;15import org.junit.Test;16public class CosTest {17 public void testEvaluate() {18 Cos cos = new Cos();19 assertThat(cos.evaluate(0), instanceOf(Double.class));20 assertThat(cos.evaluate(1), instanceOf(Double.class));21 assertThat(cos.evaluate(-1), instanceOf(Double.class));22 }23}24package org.apache.commons.math3.analysis.function;25import static org.junit.Assert.assertThat;26import static org.hamcrest.core.IsInstanceOf.instanceOf;27import org.junit.Test;28public class CosTest {29 public void testEvaluate() {30 Cos cos = new Cos();31 assertThat(cos.evaluate(0), instanceOf(Double.class));32 assertThat(cos.evaluate(1), instanceOf(Double.class));33 assertThat(cos.evaluate(-1), instanceOf(Double.class));34 }35}
AssertContains on strings in jUnit
junit assertEquals ignore case
Difference between junit-vintage-engine and junit-jupiter-engine?
Mock a constructor with parameter
Can Selenium take a screenshot on test failure with JUnit?
How to run JUnit tests by category in Maven?
Testing for multiple exceptions with JUnit 4 annotations
Exception in thread "main" java.lang.NoClassDefFoundError: junit/textui/ResultPrinter
How do I ignore certain elements when comparing XML?
Java JUnit: The method X is ambiguous for type Y
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;
Check out the latest blogs from LambdaTest on this topic:
In today’s digital age, product teams must build products at a brisk pace while maintaining the best quality. Therefore, the methodology to follow and the tool selection to accomplish this can be paramount to get better results. Moreover, software applications don’t just support businesses now; rather, they have become an integral part of a business. Hence, it’s obvious that the product teams deliver a product with speed, reliability, scale, security, quality, and improved collaboration. So companies started following the DevOps model, which is a combination of Development (Dev) and Operations (Ops) teams.
So you are at the beginning of 2020 and probably have committed a new year resolution as a tester to take a leap from Manual Testing To Automation . However, to automate your test scripts you need to get your hands dirty on a programming language and that is where you are stuck! Or you are already proficient in automation testing through a single programming language and are thinking about venturing into new programming languages for automation testing, along with their respective frameworks. You are bound to be confused about picking your next milestone. After all, there are numerous programming languages to choose from.
Both JUnit and TestNG are popular unit testing frameworks that have been widely accepted by Java developers. JUnit was introduced as an open-source unit testing framework for Java way back in 1997. In fact, JUnit is one of the widely used test automation frameworks for test automation. TestNG is another Java-based test automation framework that is not only open-source but also offers awesome features that are best suited for large-scale web automation testing. TestNG was created for a range of testing categories, including (but not limited to) unit testing, functional testing, end-to-end testing, and integration testing.
CI/CD pipelines are here to stay and contribute tremendously to continuous integration and delivery across all global projects. This article will be a guide to configure, set up builds and tests with “GitHub Actions”, primarily using Selenium WebDriver. This article shall also cover some of the most generic GitHub Actions examples, and user flows.
This article is a part of our Content Hub. For more in-depth resources, check out our content hub on 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.
Here are the detailed JUnit testing chapters to help you get started:
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.
Get 100 minutes of automation test minutes FREE!!