Join the 1-day Testing & QA Summit featuring 15+ Expert Speakers.Register for FREE! Join TestMu Conference

How to use ComparisonFailure class of junit.framework package

Best junit code snippet using junit.framework.ComparisonFailure

Source:ComparisonFailureTest.java

1package junit.tests.framework;2import junit.framework.ComparisonFailure;3import junit.framework.TestCase;4public class ComparisonFailureTest extends TestCase {5    // Most of the tests are in ComparisonCompactorTest6    public void testConnection() {7        ComparisonFailure failure = new ComparisonFailure("warning", "Mary had a little lamb", "Mary had the little lamb");8        assertEquals("warning expected:<Mary had [a] little lamb> but was:<Mary had [the] little lamb>", failure.getMessage());9    }10    // This is like an instanceof test.11    public void testThrowing() {12        try {13            assertEquals("a", "b");14        } catch (ComparisonFailure e) {15            return;16        }17        fail();18    }19    public void testExceptionToStringWithMessage() {20        try {21            assertEquals("woops!", "a", "b");22        } catch (ComparisonFailure e) {23            if (!e.toString().startsWith("junit.framework.ComparisonFailure: woops! expected:<")) {24                fail("Unexpected message: " + e);25            }26            return;27        }28        fail();29    }30    public void testExceptionToStringWithoutMessage() {31        try {32            assertEquals("a", "b");33        } catch (ComparisonFailure e) {34            if (!e.toString().startsWith("junit.framework.ComparisonFailure: expected:<")) {35                fail("Unexpected message: " + e);36            }37            return;38        }39        fail();40    }41}

ComparisonFailure

Using AI Code Generation

1import junit.framework.ComparisonFailure;2import org.junit.Assert;3import org.junit.Test;4public class TestJunit {5   public void testAdd() {6      String str= "Junit is working fine";7      Assert.assertEquals("Junit is working fine", str);8   }9   public void testAdd1() {10      String str= "Junit is working fine";11      Assert.assertEquals("Junit is working fine", str);12   }13   public void testAdd2() {14      String str= "Junit is working fine";15      Assert.assertEquals("Junit is working fine", str);16   }17   public void testAdd3() {18      String str= "Junit is working fine";19      Assert.assertEquals("Junit is working fine", str);20   }21   public void testAdd4() {22      String str= "Junit is working fine";23      Assert.assertEquals("Junit is working fine", str);24   }25   public void testAdd5() {26      String str= "Junit is working fine";27      Assert.assertEquals("Junit is working fine", str);28   }29   public void testAdd6() {30      String str= "Junit is working fine";31      Assert.assertEquals("Junit is working fine", str);32   }33   public void testAdd7() {34      String str= "Junit is working fine";35      Assert.assertEquals("Junit is working fine", str);36   }37   public void testAdd8() {38      String str= "Junit is working fine";39      Assert.assertEquals("Junit is working fine", str);40   }41   public void testAdd9() {42      String str= "Junit is working fine";43      Assert.assertEquals("Junit is working fine", str);44   }45   public void testAdd10() {46      String str= "Junit is working fine";47      Assert.assertEquals("Junit is working fine", str);48   }49   public void testAdd11() {50      String str= "Junit is working fine";51      Assert.assertEquals("Junit is working fine", str);52   }53   public void testAdd12() {54      String str= "Junit is working fine";55      Assert.assertEquals("Junit is working fine

ComparisonFailure

Using AI Code Generation

1import junit.framework.ComparisonFailure;2import org.junit.Assert;3import org.junit.Assert.*;4import org.junit.Assert.*;5import org.junit.Assert;6import org.junit.Assert.*;7import org.junit.Assert;8import org.junit.Assert.*;9import org.junit.Assert;10import org.junit.Assert.*;11import org.junit.Assert;12import org.junit.Assert.*;13import org.junit.Assert;14import org.junit.Assert.*;15import org.junit.Assert;16import org.junit.Assert.*;17import org.junit.Assert;18import org.junit.Assert.*;19import org.junit.Assert;20import org.junit.Assert.*;21import org.junit.Assert;22import org.junit.Assert.*;23import org.junit.Assert;24import org.junit.Assert.*;25import org.junit.Assert;26import org.junit.Assert.*;27import org.junit.Assert;28import org.junit.Assert.*;29import org.junit.Assert;30import org.junit.Assert.*;31import

ComparisonFailure

Using AI Code Generation

1import junit.framework.ComparisonFailure;2import org.junit.Test;3import static org.junit.Assert.*;4public class TestAssert {5    public void testAssertions() {6        String str1 = new String ("abc");7        String str2 = new String ("abc");8        String str3 = null;9        String str4 = "abc";10        String str5 = "abc";11        int val1 = 5;12        int val2 = 6;13        String[] expectedArray = {"one", "two", "three"};14        String[] resultArray = {"one", "two", "three"};15        assertEquals(str1, str2);16        assertTrue (val1 < val2);17        assertFalse(val1 > val2);18        assertNotNull(str1);19        assertSame(str4,str5);20        assertNotSame(str1,str3);21        assertArrayEquals(expectedArray, resultArray);22    }23}

ComparisonFailure

Using AI Code Generation

1package com.example;2import junit.framework.ComparisonFailure;3import org.junit.Test;4import static org.junit.Assert.assertEquals;5public class ExampleTest {6    public void test() {7        assertEquals("expected", "actual");8    }9}10package com.example;11import org.junit.ComparisonFailure;12import org.junit.Test;13import static org.junit.Assert.assertEquals;14public class ExampleTest {15    public void test() {16        assertEquals("expected", "actual");17    }18}19package com.example;20import org.junit.jupiter.api.Test;21import static org.junit.jupiter.api.Assertions.assertEquals;22public class ExampleTest {23    public void test() {24        assertEquals("expected", "actual");25    }26}27package com.example;28import org.junit.jupiter.api.Test;29import static org.junit.jupiter.api.Assertions.assertEquals;30import static org.junit.jupiter.api.Assertions.assertThrows;31public class ExampleTest {32    public void test() {33        assertThrows(ComparisonFailure.class, () -> {34            assertEquals("expected", "actual");35        });36    }37}38package com.example;39import org.junit.jupiter.api.Test;40import static org.junit.jupiter.api.Assertions.assertEquals;41import static org.junit.jupiter.api.Assertions.assertThrows;42import org.opentest4j.ComparisonFailure;43public class ExampleTest {44    public void test() {45        assertThrows(ComparisonFailure.class, () -> {46            assertEquals("expected", "actual");47        });48    }49}50package com.example;51import org.junit.jupiter.api.Test;52import static org.junit.jupiter.api.Assertions.assertEquals;53import static org.junit.jupiter.api.Assertions.assertThrows;54import org.opentest4j.ComparisonFailure;55public class ExampleTest {56    public void test() {57        assertThrows(ComparisonFailure.class, () -> {58            assertEquals("expected", "actual");59        });60    }61}62package com.example;

ComparisonFailure

Using AI Code Generation

1import org.junit.Assert;2import org.junit.Test;3public class ArrayCompareTest {4	public void testArraySort_RandomArray() {5		int[] numbers = {12,3,4,1};6		int[] expected = {1,3,4,12};7		Assert.assertArrayEquals(expected, numbers);8	}9}10at org.junit.Assert.assertEquals(Assert.java:115)11at org.junit.Assert.assertEquals(Assert.java:144)12at com.in28minutes.junit.ArrayCompareTest.testArraySort_RandomArray(ArrayCompareTest.java:14)13at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)14at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)15at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)16at java.lang.reflect.Method.invoke(Method.java:497)17at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)18at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)19at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)20at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)21at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)22at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)23at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)24at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)25at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)26at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)27at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)28at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)29at org.junit.runners.ParentRunner.run(ParentRunner.java:363)

ComparisonFailure

Using AI Code Generation

1import junit.framework.ComparisonFailure;2public class Test {3    public void test() {4        assertEquals("Hello", "Hello");5    }6}7import org.junit.ComparisonFailure;8public class Test {9    public void test() {10        assertEquals("Hello", "Hello");11    }12}

Source: AssertEquals(String, String) ComparisonFailure when contents are identical

1jrunscript -e 'java.lang.System.out.println(java.lang.System.getProperty("java.home"));'2

Source: Why junit ComparisonFailure is not used by assertEquals(Object, Object)?

1<target name="build-java" depends="prepare-build">2    <echo message="Compiling java files"/>3    <javac ....4           target="1.5"...5    </javac>6</target>7

Source:Why junit ComparisonFailure is not used by assertEquals(Object, Object)?

<target name="build-java" depends="prepare-build">
    <echo message="Compiling java files"/>
    <javac ....
           target="1.5"...
    </javac>
</target>

Source: AssertEquals(String, String) ComparisonFailure when contents are identical

1public void method(Object object) {2 if (object == null) {3 throw new IllegalArgumentException("...");4 }5

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.