[java] JUnit assertEquals(double expected, double actual, double epsilon)

Possible Duplicate:
JUnit: assertEquals for double values

Apparently the assertEquals(double expected, double actual) has been deprecated.

The javadocs for JUnit are surprisingly lacking, considerings its wide use. Can you show me how to use the new assertEquals(double expected, double actual, double epsilon)?

This question is related to java junit

The answer is

Epsilon is your "fuzz factor," since doubles may not be exactly equal. Epsilon lets you describe how close they have to be.

If you were expecting 3.14159 but would take anywhere from 3.14059 to 3.14259 (that is, within 0.001), then you should write something like

double myPi = 22.0d / 7.0d; //Don't use this in real life!
assertEquals(3.14159, myPi, 0.001);

(By the way, 22/7 comes out to 3.1428+, and would fail the assertion. This is a good thing.)

Source: Stackoverflow.com

Examples related to java

• Under what circumstances can I call findViewById with an Options Menu / Action Bar item? • How much should a function trust another function • How to implement a simple scenario the OO way • Two constructors • How do I get some variable from another class in Java? • this in equals method • How to split a string in two and store it in a field • How to do perspective fixing? • String index out of range: 4 • My eclipse won't open, i download the bundle pack it keeps saying error log

Examples related to junit

• Eclipse No tests found using JUnit 5 caused by NoClassDefFoundError for LauncherFactory • How to resolve Unneccessary Stubbing exception • JUnit 5: How to assert an exception is thrown? • How do I mock a REST template exchange? • Class Not Found: Empty Test Suite in IntelliJ • Unable to find a @SpringBootConfiguration when doing a JpaTest • Failed to load ApplicationContext (with annotation) • Example of Mockito's argumentCaptor • Mockito - NullpointerException when stubbing Method • Spring jUnit Testing properties file

[java] JUnit assertEquals(double expected, double actual, double epsilon)

The answer is

Examples related to java

Examples related to junit

Tags