Map hashmap = new HashMap();
Map map = Collections.SyncronizedMap(hashmap);
Best junit code snippet using org.junit.experimental.categories.ExcludeCategories
Source: ExcludeCategories.java
...11 * given categories.12 *13 * Usage from command line:14 * <code>15 * --filter=org.junit.experimental.categories.ExcludeCategories=pkg.of.Cat1,pkg.of.Cat216 * </code>17 *18 * Usage from API:19 * <code>20 * new ExcludeCategories().createFilter(Cat1.class, Cat2.class);21 * </code>22 */23public final class ExcludeCategories extends CategoryFilterFactory {24 /**25 * Creates a {@link Filter} which is only passed by tests that are26 * not categorized with any of the specified categories.27 *28 * @param categories Category classes.29 */30 @Override31 protected Filter createFilter(List<Class<?>> categories) {32 return new ExcludesAny(categories);33 }34 private static class ExcludesAny extends CategoryFilter {35 public ExcludesAny(List<Class<?>> categories) {36 this(new HashSet<Class<?>>(categories));37 }...
1class org.junit.experimental.categories.ExcludeCategories$ExcludesAny extends org.junit.experimental.categories.Categories$CategoryFilter {2 public org.junit.experimental.categories.ExcludeCategories$ExcludesAny(java.util.List<java.lang.Class<?>>);3 public org.junit.experimental.categories.ExcludeCategories$ExcludesAny(java.util.Set<java.lang.Class<?>>);4 public java.lang.String describe();5}...
ExcludeCategories
Using AI Code Generation
1import org.junit.experimental.categories.Categories;2import org.junit.experimental.categories.Categories.ExcludeCategory;3import org.junit.experimental.categories.Categories.IncludeCategory;4import org.junit.runner.RunWith;5import org.junit.runners.Suite;6import org.junit.runners.Suite.SuiteClasses;7@RunWith(Categories.class)8@IncludeCategory(PositiveTest.class)9@ExcludeCategory(ExcludeCategory.class)10@SuiteClasses({ TestClass1.class, TestClass2.class, TestClass3.class })11public class JunitTestSuite {12}13In the above example, we have used @IncludeCategory(PositiveTest.class) and @ExcludeCategory(ExcludeCategory.class) to include and exclude tests from the JUnit test suite. The @IncludeCategory(PositiveTest.class) annotation will include all the tests in JUnit test suite that are annotated with @PositiveTest annotation. The @ExcludeCategory(ExcludeCategory.class) annotation will exclude all the tests in JUnit test suite that are annotated with @ExcludeCategory annotation. JUnit test suite with multiple categories14import org.junit.experimental.categories.Categories;15import org.junit.experimental.categories.Categories.ExcludeCategory;16import org.junit.experimental.categories.Categories.IncludeCategory;17import org.junit.runner.RunWith;18import org.junit.runners.Suite;19import org.junit.runners.Suite.SuiteClasses;20@RunWith(Categories.class)21@IncludeCategory({ PositiveTest.class, CriticalTest.class })22@ExcludeCategory(ExcludeCategory.class)23@SuiteClasses({ TestClass1.class, TestClass2.class, TestClass3.class })24public class JunitTestSuite {25}26In the above example, we have used @IncludeCategory({PositiveTest.class, CriticalTest.class}) to include all the tests in JUnit test suite that are annotated with @PositiveTest and @
ExcludeCategories
Using AI Code Generation
1import org.junit.experimental.categories.Categories;2import org.junit.experimental.categories.Categories.ExcludeCategory;3import org.junit.runner.RunWith;4import org.junit.runners.Suite;5import org.junit.runners.Suite.SuiteClasses;6@RunWith(Categories.class)7@ExcludeCategory(SlowTests.class)8@SuiteClasses({ TestA.class, TestB.class, TestC.class })9public class JUnit4TestSuite {10}11package com.junit5.suite;12import org.junit.platform.runner.JUnitPlatform;13import org.junit.platform.suite.api.SelectClasses;14import org.junit.runner.RunWith;15@RunWith(JUnitPlatform.class)16@SelectClasses({ TestA.class, TestB.class, TestC.class })17public class JUnit5TestSuite {18}19package com.junit5.suite;20public interface SlowTests {21}22package com.junit5.suite;23import org.junit.jupiter.api.Test;24public class TestA {25 public void testA() {26 System.out.println("Test A");27 }28}29package com.junit5.suite;30import org.junit.jupiter.api.Test;31import org.junit.jupiter.api.Tag;32@Tag("slow")33public class TestB {34 public void testB() {35 System.out.println("Test B");36 }37}38package com.junit5.suite;39import org.junit.jupiter.api.Test;40import org.junit.jupiter.api.Tag;41@Tag("slow")42public class TestC {43 public void testC() {44 System.out.println("Test C");45 }46}47package com.junit5.suite;48import org.junit.platform.runner.JUnitPlatform;49import org.junit.platform.suite.api.SelectClasses;50import org.junit.platform.suite.api.SelectPackages;51import org.junit.runner.RunWith;52@RunWith(JUnitPlatform.class)
ExcludeCategories
Using AI Code Generation
1import org.junit.experimental.categories.Categories;2import org.junit.experimental.categories.Categories.ExcludeCategories;3import org.junit.experimental.categories.Categories.IncludeCategories;4import org.junit.runner.RunWith;5import org.junit.runners.Suite;6import org.junit.runners.Suite.SuiteClasses;7@RunWith(Categories.class)8@IncludeCategories(PerformanceTest.class)9@ExcludeCategories(SlowTest.class)10@SuiteClasses({ TestA.class, TestB.class, TestC.class })11public class TestSuite {12}
ExcludeCategories
Using AI Code Generation
1import org.junit.experimental.categories.Categories;2import org.junit.runner.RunWith;3import org.junit.runners.Suite.SuiteClasses;4import org.junit.runners.Suite;5import org.junit.experimental.categories.Categories.ExcludeCategories;6@RunWith(Categories.class)7@ExcludeCategories(RegressionTests.class)8@SuiteClasses({ TestClass1.class, TestClass2.class, TestClass3.class })9public class TestSuiteClass {10}11import org.junit.experimental.categories.Categories;12import org.junit.runner.RunWith;13import org.junit.runners.Suite.SuiteClasses;14import org.junit.runners.Suite;15import org.junit.experimental.categories.Categories.IncludeCategories;16@RunWith(Categories.class)17@IncludeCategories(RegressionTests.class)18@SuiteClasses({ TestClass1.class, TestClass2.class, TestClass3.class })19public class TestSuiteClass {20}21import org.junit.experimental.categories.Category;22import org.junit.Test;23@Category(RegressionTests.class)24public class TestClass1 {25 public void testMethod1() {26 System.out.println("Running test method 1");27 }28 public void testMethod2() {29 System.out.println("Running test method 2");30 }31}32@Category(RegressionTests.class)33public class TestClass2 {34 public void testMethod1() {35 System.out.println("Running test method 1");36 }37 public void testMethod2() {38 System.out.println("Running test method 2");39 }40}41@Category(RegressionTests.class)42public class TestClass3 {43 public void testMethod1() {44 System.out.println("Running test method 1");45 }46 public void testMethod2() {47 System.out.println("Running test method 2");48 }49}50public interface RegressionTests {51}
ExcludeCategories
Using AI Code Generation
1import org.junit.experimental.categories.Categories;2import org.junit.experimental.categories.Categories.ExcludeCategory;3import org.junit.runner.RunWith;4import org.junit.runners.Suite;5@RunWith(Categories.class)6@ExcludeCategory(ExcludeCategoryTest.class)7@Suite.SuiteClasses({ CategoryTest.class, CategoryTest2.class })8public class ExcludeCategoryTest {9}
ExcludeCategories
Using AI Code Generation
1@Category(ExcludeCategories.class)2@ExcludeCategories(ExcludeCategories.class)3public class ExcludeCategoriesTest {4 @Category(ExcludeCategories.class)5 public void test1() {6 System.out.println("test1");7 }8 @Category(ExcludeCategories.class)9 public void test2() {10 System.out.println("test2");11 }12}
ExcludeCategories
Using AI Code Generation
1package com.mkyong.core;2import org.junit.experimental.categories.Categories;3import org.junit.runner.RunWith;4import org.junit.runners.Suite.SuiteClasses;5@RunWith(Categories.class)6@Categories.ExcludeCategory(UnitTest.class)7@SuiteClasses({TestJunit1.class, TestJunit2.class})8public class JUnit4TestSuite {9}
1Map hashmap = new HashMap();23Map map = Collections.SyncronizedMap(hashmap);4
JUnit 4 Expected Exception type
java: how to mock Calendar.getInstance()?
Changing names of parameterized tests
Mocking a class vs. mocking its interface
jUnit ignore @Test methods from base class
Important frameworks/tools to learn
Unit testing a Java Servlet
Meaning of delta or epsilon argument of assertEquals for double values
Different teardown for each @Test in jUnit
Best way to automagically migrate tests from JUnit 3 to JUnit 4?
There's actually an alternative to the @Test(expected=Xyz.class)
in JUnit 4.7 using Rule
and ExpectedException
In your test case you declare an ExpectedException
annotated with @Rule
, and assign it a default value of ExpectedException.none()
. Then in your test that expects an exception you replace the value with the actual expected value. The advantage of this is that without using the ugly try/catch method, you can further specify what the message within the exception was
@Rule public ExpectedException thrown= ExpectedException.none();
@Test
public void myTest() {
thrown.expect( Exception.class );
thrown.expectMessage("Init Gold must be >= 0");
rodgers = new Pirate("Dread Pirate Rodgers" , -100);
}
Using this method, you might be able to test for the message in the generic exception to be something specific.
ADDITION
Another advantage of using ExpectedException
is that you can more precisely scope the exception within the context of the test case. If you are only using @Test(expected=Xyz.class)
annotation on the test, then the Xyz exception can be thrown anywhere in the test code -- including any test setup or pre-asserts within the test method. This can lead to a false positive.
Using ExpectedException, you can defer specifying the thrown.expect(Xyz.class)
until after any setup and pre-asserts, just prior to actually invoking the method under test. Thus, you more accurately scope the exception to be thrown by the actual method invocation rather than any of the test fixture itself.
JUnit 5 NOTE:
JUnit 5 JUnit Jupiter has removed @Test(expected=...)
, @Rule
and ExpectedException
altogether. They are replaced with the new assertThrows()
, which requires the use of Java 8 and lambda syntax. ExpectedException
is still available for use in JUnit 5 through JUnit Vintage. Also JUnit Jupiter will also continue to support JUnit 4 ExpectedException
through use of the junit-jupiter-migrationsupport module, but only if you add an additional class-level annotation of @EnableRuleMigrationSupport
.
Check out the latest blogs from LambdaTest on this topic:
This article is a part of our Content Hub. For more in-depth resources, check out our content hub on Selenium NUnit Tutorial.
There are various CI/CD tools such as CircleCI, TeamCity, Bamboo, Jenkins, GitLab, Travis CI, GoCD, etc., that help companies streamline their development process and ensure high-quality applications. If we talk about the top CI/CD tools in the market, Jenkins is still one of the most popular, stable, and widely used open-source CI/CD tools for building and automating continuous integration, delivery, and deployment pipelines smoothly and effortlessly.
This article is a part of our Content Hub. For more in-depth resources, check out our content hub on Selenium pytest Tutorial.
The Selenium automation framework supports many programming languages such as Python, PHP, Perl, Java, C#, and Ruby. But if you are looking for a server-side programming language for automation testing, Selenium WebDriver with PHP is the ideal combination.
While working on a project for test automation, you’d require all the Selenium dependencies associated with it. Usually these dependencies are downloaded and upgraded manually throughout the project lifecycle, but as the project gets bigger, managing dependencies can be quite challenging. This is why you need build automation tools such as Maven to handle them automatically.
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!!