24 lines
572 B
Common Lisp
24 lines
572 B
Common Lisp
(defpackage lizfcm/tests.approx
|
|
(:use :cl
|
|
:fiveam
|
|
:lizfcm.approx
|
|
:lizfcm.utils
|
|
:lizfcm/tests)
|
|
(:export :approx-suite))
|
|
(in-package :lizfcm/tests.approx)
|
|
|
|
(def-suite approx-suite
|
|
:in lizfcm-test-suite)
|
|
(in-suite approx-suite)
|
|
|
|
(test derivative-at
|
|
:description "derivative at is within bounds"
|
|
(let ((f (lambda (x) (* x x)))
|
|
(x 2)
|
|
(f-prime-at-x 4)
|
|
(delta 0.01))
|
|
(is (within-range-p
|
|
(derivative-at f x delta)
|
|
f-prime-at-x
|
|
0.1))))
|