問題描述
我有一個關于 JUnit assertEquals 以測試 double 值的問題.閱讀 API 文檔 我可以看到:
@Deprecatedpublic static void assertEquals(預期雙倍，實際雙倍)已棄用.請改用 assertEquals(double expected, double actual, double delta).
(注意:在舊的文檔版本中，delta 參數稱為 epsilon)
delta(或epsilon)參數是什么意思?
Epsilon 是兩個數字可以關閉的值.所以只要 Math.abs(expected - actual) <= epsilon
I have a question about JUnit assertEquals to test double values. Reading the API doc I can see:
@Deprecated public static void assertEquals(double expected, double actual)Deprecated. Use
assertEquals(double expected, double actual, double delta)instead.
(Note: in older documentation versions, the delta parameter is called epsilon)
What does the delta (or epsilon) parameter mean?
Epsilon is the value that the 2 numbers can be off by. So it will assert to true as long as Math.abs(expected - actual) <= epsilon
這篇關于對于 double 值，assertEquals 的 delta 或 epsilon 參數的含義的文章就介紹到這了，希望我們推薦的答案對大家有所幫助，也希望大家多多支持html5模板網！