JUnit assertEquals double expected double actual double epsilon

Question

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

User · Accepted Answer

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

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

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