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;;;; -*- Mode: LISP; Syntax: ANSI-Common-Lisp; Package: rsm.finance.test -*-
;;;; *************************************************************************
;;;; FILE IDENTIFICATION
;;;;
;;;; Name: finance-test.lisp
;;;; Purpose: Regression testing for financial loan utilities.
;;;; Author: R. Scott McIntire
;;;; Date Started: Aug 2003
;;;;
;;;; $Id: finance-test.lisp,v 1.2 2003/09/10 22:19:24 rscottmcintire Exp $
;;;; *************************************************************************
(in-package #:cl-user)
(defpackage rsm.finance.test
(:use #:cl rsm.finance #:ptester)
(:documentation
"Provides a test harness for financial loan utilities.")
)
(in-package rsm.finance.test)
;;;; INFRASTRUCTURE FUNCTIONS AND VARIABLES.
(defvar *tolerance* 1.0d-5
"The tolerance used to decide floating point equality.")
(defun float-equal (x y)
"Equal if relative of x and y is less than +tolerance+.
When +tolerance+ is 1.0d-4, then equality means that <x> and <y>
are equal with a relative error of a hundredth of a percent."
(if (and (= 0.0d0 x) (= 0.0d0 y))
t
(let ((max (max (abs x) (abs y))))
(< (/ (abs (- x y)) max) *tolerance*))))
;;;; RUN THE TESTS.
(defun run-finance-tests ()
(with-tests (:name "LOAN FINANCE TESTS")
;; Group 1
(test 1330.60d0
(calc-monthly-payment 200000.0 30 7.0)
:test #'float-equal
:fail-info "Test 1")
(test 200000.0d0
(calc-initial-debt 30 7.0 1330.60)
:test #'float-equal
:fail-info "Test 2")
(test 7.0d0
(calc-interest-rate 200000.0 1330.60 30)
:test #'float-equal
:fail-info "Test 3")
(test '(361 30 1 479022.11787691835d0 6.117876918363281d0)
(calc-num-payments 200000.0 7.0 1330.60)
:test #'float-equal
:multiple-values t
:fail-info "Test 4")
;; Group 2
(test 716.43d0
(calc-monthly-payment 100000.0 20 6.0)
:test #'float-equal
:fail-info "Test 5")
(test 100000.0d0
(calc-initial-debt 20 6.0 716.43)
:test #'float-equal
:fail-info "Test 6")
(test 6.0d0
(calc-interest-rate 100000.0 716.43 20)
:test #'float-equal
:fail-info "Test 7")
(test '(241 20 1 171943.69556928397d0 0.4924442839637882d0)
(calc-num-payments 100000.0 6.0 716.43)
:test #'float-equal
:multiple-values t
:fail-info "Test 8")
;; Group 3
(test 278.49d0
(calc-monthly-payment 15000.0 5 4.33d0)
:test #'float-equal
:fail-info "Test 9")
(test 15000.0d0
(calc-initial-debt 5 4.33 278.49)
:test #'float-equal
:fail-info "Test 10")
(let ((*tolerance* 1.0d-4))
(test 4.33d0
(calc-interest-rate 15000.0 278.49 5)
:test #'float-equal
:fail-info "Test 11")
(test '(60 5 0 16708.217007688505d0 277.30685143850604d0)
(calc-num-payments 15000.0 4.33 278.49)
:test #'float-equal
:multiple-values t
:fail-info "Test 12")
;; Group 4
(test 0.0054549d0
(calc-interest-rate 200000.0 556.00 30)
:test #'float-equal
:fail-info "Test 13")
(test 556.0d0
(calc-monthly-payment 200000.0 30 0.0054549)
:test #'float-equal
:fail-info "Test 14")
(test 200000.0d0
(calc-initial-debt 30 0.0054549 556.00)
:test #'float-equal
:fail-info "Test 15")
(test '(361 30 1 200164.14959972943d0 4.149599729439264d0)
(calc-num-payments 200000.0 0.0054549 556.00)
:test #'float-equal
:multiple-values t
:fail-info "Test 16")
)
;; Group 5
(test nil
(calc-interest-rate 200000.0 555.00 30)
:fail-info "Test 17")
;; Group 6
(test-error
(calc-interest-rate 200000.0 555.00 -30)
:fail-info "Test 18")
(test-error
(calc-interest-rate 200000.0 -555.00 30)
:fail-info "Test 19")
(test-error
(calc-interest-rate -200000.0 555.00 30)
:fail-info "Test 20")
(test-error
(calc-interest-rate -200000.0 555.00 -30)
:fail-info "Test 21")
(test-error
(calc-interest-rate -200000.0 -555.00 30)
:fail-info "Test 22")
(test-error
(calc-interest-rate -200000.0 -555.00 -30)
:fail-info "Test 23")
;; Group 7
(test-error
(calc-num-payments -15000.0 4.33 278.49)
:fail-info "Test 24")
(test-error
(calc-num-payments 15000.0 -4.33 278.49)
:fail-info "Test 25")
(test-error
(calc-num-payments 15000.0 4.33 -278.49)
:fail-info "Test 26")
(test-error
(calc-num-payments -15000.0 -4.33 278.49)
:fail-info "Test 27")
(test-error
(calc-num-payments -15000.0 -4.33 -278.49)
:fail-info "Test 28")
;; Group 8
(test-error
(calc-monthly-payment -15000.0 5 4.33d0)
:fail-info "Test 29")
(test-error
(calc-monthly-payment 15000.0 -5 4.33d0)
:fail-info "Test 30")
(test-error
(calc-monthly-payment 15000.0 5 -4.33d0)
:fail-info "Test 31")
(test-error
(calc-monthly-payment -15000.0 -5 4.33d0)
:fail-info "Test 32")
(test-error
(calc-monthly-payment -15000.0 5 -4.33d0)
:fail-info "Test 33")
(test-error
(calc-monthly-payment -15000.0 -5 -4.33d0)
:fail-info "Test 34")
;; Group 9
(test-error
(calc-initial-debt -30 7.0 1330.60)
:fail-info "Test 35")
(test-error
(calc-initial-debt 30 -7.0 1330.60)
:fail-info "Test 36")
(test-error
(calc-initial-debt 30 7.0 -1330.60)
:fail-info "Test 37")
(test-error
(calc-initial-debt -30 7.0 -1330.60)
:fail-info "Test 38")
(test-error
(calc-initial-debt -30 -7.0 1330.60)
:fail-info "Test 39")
(test-error
(calc-initial-debt 30 -7.0 -1330.60)
:fail-info "Test 40")
(test-error
(calc-initial-debt -30 -7.0 -1330.60)
:fail-info "Test 41")
)
t
)
|
