How to use describeMismatch method of org.hamcrest.Interface Matcher class

Best junit code snippet using org.hamcrest.Interface Matcher.describeMismatch

copy

Full Screen

...46 private class IntMatcherFromInterface extends BaseMatcher<Integer> {47 public boolean matches(Object o) {48 return true;49 }50 public void describeMismatch(Object item, Description mismatchDescription) {}51 public void describeTo(Description description) {}52 }53 /​/​Static Matcher interface implementation (instead of the BaseMatcher)54 private static class StaticIntMatcherFromInterface extends BaseMatcher<Integer> {55 public boolean matches(Object o) {56 return true;57 }58 public void describeMismatch(Object item, Description mismatchDescription) {}59 public void describeTo(Description description) {}60 }61 /​/​non-generic matcher implementing the interface62 @SuppressWarnings("rawtypes")63 private static class NonGenericMatcherFromInterface extends BaseMatcher {64 public boolean matches(Object o) {65 return true;66 }67 public void describeMismatch(Object item, Description mismatchDescription) {}68 public void describeTo(Description description) {}69 }70 private interface IMatcher extends Matcher<Integer> {}71 /​/​non-generic matcher implementing the interface72 private static class SubclassGenericMatcherFromInterface extends BaseMatcher<Integer> implements Serializable, Cloneable, IMatcher {73 public boolean matches(Object o) {74 return true;75 }76 public void describeMismatch(Object item, Description mismatchDescription) {}77 public void describeTo(Description description) {}78 }79 /​/​I refuse to comment on the sanity of this case80 private static class InsaneEdgeCase extends SubclassGenericMatcherFromInterface {}81 @Test82 public void findsGenericType() {83 assertEquals(Integer.class, genericTypeOfMatcher(IntMatcher.class));84 assertEquals(Integer.class, genericTypeOfMatcher(StaticIntMatcher.class));85 assertEquals(Integer.class, genericTypeOfMatcher(IntMatcherFromInterface.class));86 assertEquals(Integer.class, genericTypeOfMatcher(StaticIntMatcherSubclass.class));87 assertEquals(Integer.class, genericTypeOfMatcher(IntMatcherFromInterface.class));88 assertEquals(Integer.class, genericTypeOfMatcher(StaticIntMatcherFromInterface.class));89 assertEquals(Integer.class, genericTypeOfMatcher(SubclassGenericMatcherFromInterface.class));90 assertEquals(Integer.class, genericTypeOfMatcher(InsaneEdgeCase.class));91 assertEquals(Integer.class, genericTypeOfMatcher(new BaseMatcher<Integer>() {92 public void describeTo(Description description) {93 }94 public boolean matches(Object o) {95 return false;96 }97 }.getClass()));98 assertEquals(Integer.class, genericTypeOfMatcher(new BaseMatcher<Integer>() {99 public void describeTo(Description description) {100 }101 public boolean matches(Object o) {102 return false;103 }104 public void describeMismatch(Object item, Description mismatchDescription) {105 }106 }.getClass()));107 assertEquals(Object.class, genericTypeOfMatcher(Object.class));108 assertEquals(Object.class, genericTypeOfMatcher(String.class));109 assertEquals(Object.class, genericTypeOfMatcher(HashMap.class));110 assertEquals(Object.class, genericTypeOfMatcher(new HashMap<String, String>() {111 }.getClass()));112 assertEquals(Object.class, genericTypeOfMatcher(NonGenericMatcher.class));113 assertEquals(Object.class, genericTypeOfMatcher(NonGenericMatcherFromInterface.class));114 }115}...

Full Screen

Full Screen
copy

Full Screen

...16 * <pre>{@code 17 * if (matches(item)) {18 * return true;19 * } else {20 * describeMismatch(item, description);21 * return false;22 * }23 * }</​pre>24 * <p>25 * If you want to override {@link #matches(java.lang.Object, org.hamcrest.Description)},26 * extend {@link QuickDiagnosingMatcherBase} instead.27 * @param <T>28 */​29public abstract class QuickMatcherBase<T> 30 extends BaseMatcher<T> 31 implements QuickDiagnosingMatcher<T> {3233 /​** {@inheritDoc} */​34 @Override35 public abstract boolean matches(Object item);3637 /​** {@inheritDoc} */​38 @Override39 public abstract void describeMismatch(Object item, Description description);4041 /​**42 * <pre>{@code 43 * if (matches(item)) {44 * return true;45 * } else {46 * describeMismatch(item, description);47 * return false;48 * }49 * }</​pre>50 * @param item51 * @param mismatch52 * @return match 53 */​54 @Override55 public final boolean matches(Object item, Description mismatch) {56 if (matches(item)) {57 return true;58 } else {59 describeMismatch(item, mismatch);60 return false;61 }62 }6364 @Override65 public <I> MatchResult<I> matchResult(I item) {66 StringDescription mismatch = new StringDescription();67 if (matches(item, mismatch)) {68 return new MatchResultSuccess<>(item, this);69 } else {70 return new MatchResultMismatch<>(item, this, mismatch.toString());71 }72 }73} ...

Full Screen

Full Screen
copy

Full Screen

...18 matcher.describeTo(description);19 return description.toString();20 }21 /​**22 * Shorthand function to calling {@link Matcher#describeMismatch(Object, Description)} and getting23 * the String representation of that description.24 *25 * @param matcher The matcher which we want the mismatch description for.26 * @param actual The actual value that triggered the mismatch.27 * @return The string set by {@link Matcher#describeMismatch(Object, Description)}.28 */​29 public static String getMismatchDescription(Matcher<?> matcher, Object actual) {30 Description description = new StringDescription();31 matcher.describeMismatch(actual, description);32 return description.toString();33 }34 /​** Object transformer used for various overloads of the {@code join} method. */​35 interface Transformer<F, T> {36 T transform(F original);37 }38 /​**39 * Similar implementation to {@link android.text.TextUtils#join(CharSequence, Object[])} but40 * allows for object transformations on each element.41 */​42 public static <T> String join(CharSequence delimiter, T[] tokens, Transformer<T, ?> transformer) {43 StringBuilder sb = new StringBuilder();44 for (int i = 0; i < tokens.length; ++i) {45 if (i != 0) {...

Full Screen

Full Screen
copy

Full Screen

...15 /​/​---------------------------------------------------------------------16 /​/​ Static definitions, members, initialization and constructors17 /​/​---------------------------------------------------------------------18 private DescribeTo describeTo;19 private DescribeMismatch describeMismatch;20 DescribingMatcher()21 {22 super();23 }24 /​/​endregion25 @Override26 public final void describeTo( Description description )27 {28 describeTo.describeTo( description );29 }30 @Override31 protected final void describeMismatchSafely( T item, Description mismatchDescription )32 {33 describeMismatch.describeMismatch( mismatchDescription );34 }35 protected final void assignDescribers( DescribingMatcher.DescribeTo describeTo,36 DescribingMatcher.DescribeMismatch describeMismatch )37 {38 this.describeTo = describeTo;39 this.describeMismatch = describeMismatch;40 }41 protected interface DescribeTo42 {43 void describeTo( Description description );44 }45 protected interface DescribeMismatch46 {47 void describeMismatch( Description description );48 }49}...

Full Screen

Full Screen

describeMismatch

Using AI Code Generation

copy

Full Screen

1import org.hamcrest.Description;2import org.hamcrest.Matcher;3import org.hamcrest.TypeSafeMatcher;4public class MyMatcher extends TypeSafeMatcher<String> {5 public void describeTo(Description description) {6 description.appendText("MyMatcher");7 }8 protected boolean matchesSafely(String item) {9 return true;10 }11 protected void describeMismatchSafely(String item, Description mismatchDescription) {12 mismatchDescription.appendText("MyMatcher mismatch");13 }14}15public class MyMatcherTest {16 public void testMyMatcher() {17 Matcher<String> myMatcher = new MyMatcher();18 assertThat("test", myMatcher);19 }20}21import static org.hamcrest.CoreMatchers.*;22import static org.hamcrest.MatcherAssert.assertThat;23public class MyMatcherTest {24 public void testMyMatcher() {25 Matcher<String> myMatcher = (s) -> s.length() > 3;26 assertThat("test", myMatcher);27 }28}29import static org.hamcrest.CoreMatchers.*;30import static org.hamcrest.MatcherAssert.assertThat;31public class MyMatcherTest {32 public void testMyMatcher() {33 Matcher<String> myMatcher = equalTo("test");34 assertThat("test", myMatcher);35 }36}37import static org.hamcrest.CoreMatchers.*;38import static org.hamcrest.MatcherAssert.assertThat;39public class MyMatcherTest {

Full Screen

Full Screen

describeMismatch

Using AI Code Generation

copy

Full Screen

1Matcher<T> {2 public void describeMismatch(Object item, Description mismatchDescription) {3 mismatchDescription.appendText("was ").appendValue(item);4 }5}6 public void describeMismatchSafely(T item, Description mismatchDescription) {7 mismatchDescription.appendText("was ").appendValue(item);8 }9}10 public void describeMismatchSafely(T item, Description mismatchDescription) {11 mismatchDescription.appendText("was ").appendValue(item);12 }13}14 public void describeMismatchSafely(T item, Description mismatchDescription) {15 mismatchDescription.appendText("was ").appendValue(item);16 }17}18 public void describeMismatchSafely(T item, Description mismatchDescription) {19 mismatchDescription.appendText("was ").appendValue(item);20 }21}22 public void describeMismatchSafely(T item, Description mismatchDescription) {23 mismatchDescription.appendText("was ").appendValue(item);24 }25}26 public void describeMismatchSafely(T item, Description mismatchDescription) {27 mismatchDescription.appendText("was ").appendValue(item);28 }29}30 public void describeMismatchSafely(T item, Description mismatchDescription) {31 mismatchDescription.appendText("was ").appendValue(item);32 }33}

Full Screen

Full Screen

describeMismatch

Using AI Code Generation

copy

Full Screen

1import org.hamcrest.Description;2import org.hamcrest.Matcher;3import org.hamcrest.TypeSafeDiagnosingMatcher;4public class IsIn<T> extends TypeSafeDiagnosingMatcher<Iterable<? super T>> {5 private final Matcher<? super T> elementMatcher;6 public static <T> Matcher<Iterable<? super T>> isIn(Matcher<? super T> elementMatcher) {7 return new IsIn<T>(elementMatcher);8 }9 public IsIn(Matcher<? super T> elementMatcher) {10 this.elementMatcher = elementMatcher;11 }12 public void describeTo(Description description) {13 description.appendText("an iterable containing ").appendDescriptionOf(elementMatcher);14 }15 protected boolean matchesSafely(Iterable<? super T> item, Description mismatchDescription) {16 for (Object actualElement : item) {17 if (elementMatcher.matches(actualElement)) {18 return true;19 }20 }21 mismatchDescription.appendText("no item in iterable ");22 elementMatcher.describeMismatch(item, mismatchDescription);23 return false;24 }25}26import static org.hamcrest.MatcherAssert.assertThat;27import static org.hamcrest

Full Screen

Full Screen

describeMismatch

Using AI Code Generation

copy

Full Screen

1import org.hamcrest.Matcher2import org.hamcrest.StringDescription3import org.hamcrest.core.IsEqual4import org.hamcrest.core.IsNot5def matcher = new IsEqual(expectedValue)6def mismatchDescription = new StringDescription()7matcher.describeMismatch(actualValue, mismatchDescription)8println mismatchDescription.toString()9def matcher = new IsNot(expectedValue)10def mismatchDescription = new StringDescription()11matcher.describeMismatch(actualValue, mismatchDescription)12println mismatchDescription.toString()13import org.hamcrest.Matcher14import org.hamcrest.StringDescription15import org.hamcrest.core.IsEqual16import org.hamcrest.core.IsNot17def matcher = new IsEqual(expectedValue)18def mismatchDescription = new StringDescription()19matcher.describeMismatch(actualValue, mismatchDescription)20println mismatchDescription.toString()21def matcher = new IsNot(expectedValue)22def mismatchDescription = new StringDescription()23matcher.describeMismatch(actualValue, mismatchDescription)24println mismatchDescription.toString()25import org.hamcrest.Matcher26import org.hamcrest.StringDescription27import org.hamcrest.core.IsEqual28import org.hamcrest.core.IsNot29def matcher = new IsEqual(expectedValue)30def mismatchDescription = new StringDescription()31matcher.describeMismatch(actualValue, mismatchDescription)32println mismatchDescription.toString()33def matcher = new IsNot(expectedValue)34def mismatchDescription = new StringDescription()35matcher.describeMismatch(actualValue, mismatchDescription)36println mismatchDescription.toString()37import org.hamcrest.Matcher38import org.hamcrest.StringDescription39import org.hamcrest.core.IsEqual40import org.hamcrest.core.IsNot41def matcher = new IsEqual(expectedValue)42def mismatchDescription = new StringDescription()43matcher.describeMismatch(actualValue, mismatchDescription)

Full Screen

Full Screen

StackOverFlow community discussions

Questions
Discussion

How should I test private methods in Java?

How to test validation annotations of a class using JUnit?

How to mock getApplicationContext

Populating Spring @Value during Unit Test

Selenium 2.53 not working on Firefox 47

JUnit won&#39;t stop at breakpoints in Eclipse (using JDK 1.6.0.20)

annotation to make a private method public only for test classes

Populating Spring @Value during Unit Test

JUNIT Test class in Eclipse - java.lang.ClassNotFoundException

How to simulate throwing an exception only once in retry with JUnit/Mockito test?

You should not need to test private methods.

  • A private method is specifically part of the implementation. You should not test the implemenation, but the functionality. If you test the functionality a class exposes, you can change the implementation while depending on the unit test.
  • If you feel the need to test a private method, this is a good sign that you should move the private method to another class and make the method public. By doing this, you get smaller classes and you can test the methods easily. If you do not want to expose this new class, you can make it package-private (the default access modifier).
https://stackoverflow.com/questions/3299405/how-should-i-test-private-methods-in-java

Blogs

Check out the latest blogs from LambdaTest on this topic:

Top Selenium C# Frameworks For Automation Testing In 2020

With the ever-increasing number of languages and frameworks, it’s quite easy to get lost and confused in this huge sea of all these frameworks. Popular languages like C# provide us with a lot of frameworks and it’s quite essential to know which particular framework would be best suited for our needs.

Gauge Framework – How to Perform Test Automation

Gauge is a free open source test automation framework released by creators of Selenium, ThoughtWorks. Test automation with Gauge framework is used to create readable and maintainable tests with languages of your choice. Users who are looking for integrating continuous testing pipeline into their CI-CD(Continuous Integration and Continuous Delivery) process for supporting faster release cycles. Gauge framework is gaining the popularity as a great test automation framework for performing cross browser testing.

TestNG Listeners In Selenium WebDriver With Examples

There are different interfaces provided by Java that allows you to modify TestNG behaviour. These interfaces are further known as TestNG Listeners in Selenium WebDriver. TestNG Listeners also allows you to customize the tests logs or report according to your project requirements.

Why Selenium WebDriver Should Be Your First Choice for Automation Testing

Developed in 2004 by Thoughtworks for internal usage, Selenium is a widely used tool for automated testing of web applications. Initially, Selenium IDE(Integrated Development Environment) was being used by multiple organizations and testers worldwide, benefits of automation testing with Selenium saved a lot of time and effort. The major downside of automation testing with Selenium IDE was that it would only work with Firefox. To resolve the issue, Selenium RC(Remote Control) was used which enabled Selenium to support automated cross browser testing.

How To Build CI/CD Pipeline With TeamCity For Selenium Test Automation

Continuous Integration/Continuous Deployment (CI/CD) has become an essential part of modern software development cycles. As a part of continuous integration, the developer should ensure that the Integration should not break the existing code because this could lead to a negative impact on the overall quality of the project. In order to show how the integration process works, we’ll take an example of a well-known continuous integration tool, TeamCity. In this article, we will learn TeamCity concepts and integrate our test suites with TeamCity for test automation by leveraging LambdaTest cloud-based Selenium grid.

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.

Run junit automation tests on LambdaTest cloud grid

Perform automation testing on 3000+ real desktop and mobile devices online.

Try LambdaTest Now !!

Get 100 minutes of automation test minutes FREE!!

Next-Gen App & Browser Testing Cloud

Was this article helpful?

Helpful

NotHelpful