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cl-dates/test-dates.lisp

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;;; Copyright (c) 2017, Sudhir Shenoy. All rights reserved.
;;; Redistribution and use in source and binary forms, with or without
;;; modification, are permitted provided that the following conditions
;;; are met:
;;; * Redistributions of source code must retain the above copyright
;;; notice, this list of conditions and the following disclaimer.
;;; * Redistributions in binary form must reproduce the above
;;; copyright notice, this list of conditions and the following
;;; disclaimer in the documentation and/or other materials
;;; provided with the distribution.
;;; THIS SOFTWARE IS PROVIDED BY THE AUTHOR 'AS IS' AND ANY EXPRESSED
;;; OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
;;; WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
;;; ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
;;; DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
;;; DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
;;; GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
;;; INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
;;; WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
;;; NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
;;; SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
(in-package :cl-dates-test)
(deftest julian ()
(check
(= (ymd->date 2017 2 5) 2457789.5)
(= (ymd->date 1959 12 29) 2436931.5)
(= (ymd->date 1959 12 29 18 12 26.3) 2436932.2586376667d0)
(equal '(2017 2 5) (multiple-value-call #'list (date->ymd 2457789.5)))
(= (ymd->date 1600 2 29) 2305506.5)
(= (ymd->date 1600 2 29 9 31 23.5) 2305506.896799773d0)
(equal '(1600 2 29 9 31 23.500385284423828d0)
(multiple-value-call #'list (date->ymd 2305506.896799773d0 :want-time t)))
(= (date->javascript-time (ymd->date 2017 6 18)) 1497744000000)
(= (jday-number (ymd->date 2017 6 18)) 2457923)))
(deftest misc-fns ()
(check
(valid-date-p 2000 2 29)
(null (valid-date-p 1900 2 29))
(null (valid-date-p 1234 65 789))
(null (leap-year-p 1900))
(leap-year-p 2000)
(null (leap-year-p 2001))
(leap-year-p 2004)
(eq :monday (day-of-week (ymd->date 2017 2 6)))
(eq :wednesday (day-of-week (ymd->date 1959 9 23)))
(= (nth-day-of-week (ymd->date 2017 2 5) :tuesday 3) (ymd->date 2017 2 21))
(= (nth-day-of-week (ymd->date 2017 2 5) :thursday 3) (ymd->date 2017 2 16))
;; overflow month - returns last tuesday
(= (nth-day-of-week (ymd->date 2017 2 5) :tuesday 7) (ymd->date 2017 2 28))
;; any number <= 1 should return 1st tuesday
(= (nth-day-of-week (ymd->date 2017 2 5) :tuesday -7) (ymd->date 2017 2 7))
(date= (ymd->date 2007 2 3 10 35 42) (ymd->date 2007 2 3 11 30 20) (ymd->date 2007 2 3 12 45 12))
(date/= (ymd->date 2007 2 4) (ymd->date 2007 2 3) (ymd->date 2007 2 3))
(date< (ymd->date 2007 2 3 10 35 42) (ymd->date 2007 2 4 11 30 20) (ymd->date 2007 2 5 12 45 12))
(not (date< (ymd->date 2007 2 3 10 35 42) (ymd->date 2007 2 3 11 30 20) (ymd->date 2007 2 5 12 45 12)))
(date<= (ymd->date 2007 2 3 10 35 42) (ymd->date 2007 2 3 11 30 20) (ymd->date 2007 2 5 12 45 12))))
(deftest print-fns ()
(let ((dt1 (ymd->date 2017 2 16))
(dt2 (ymd->date 2017 2 16 17 30 25 +9)))
(check
(string= (dow->string :monday) "Monday")
(string= (dow->string :tuesday) "Tuesday")
(string= (dow->string :wednesday) "Wednesday")
(string= (dow->string :thursday) "Thursday")
(string= (dow->string :friday) "Friday")
(string= (dow->string :saturday) "Saturday")
(string= (dow->string :sunday) "Sunday")
(string= (month->string 1) "January")
(string= (month->string 2) "February")
(string= (month->string 3) "March")
(string= (month->string 4) "April")
(string= (month->string 5) "May")
(string= (month->string 6) "June")
(string= (month->string 7) "July")
(string= (month->string 8) "August")
(string= (month->string 9) "September")
(string= (month->string 10) "October")
(string= (month->string 11) "November")
(string= (month->string 12) "December")
(string= (date->string dt1) "2017-02-16")
(string= (date->string dt1 :format :iso-8601) "2017-02-16")
(string= (date->string dt1 :format :asctime) "Thu Feb 16 2017")
(string= (date->string dt1 :format :rfc-822) "Thu, 16 Feb 2017")
(string= (date->string dt1 :format :rfc-850) "Thu, 16-Feb-2017")
(string= (date->string dt2) "2017-02-16 08:30:25 UTC")
(string= (date->string dt2 :format :iso-8601) "2017-02-16T08:30:25Z")
(string= (date->string dt2 :format :asctime) "Thu Feb 16 08:30:25 GMT 2017")
(string= (date->string dt2 :format :rfc-822) "Thu, 16 Feb 2017 08:30:25 GMT")
(string= (date->string dt2 :format :rfc-850) "Thu, 16-Feb-2017 08:30:25 GMT")
(string= (date->string dt2 :zone "JST") "2017-02-16 17:30:25 +09:00")
(string= (date->string dt2 :zone "JST" :format :iso-8601) "2017-02-16T17:30:25+09:00")
(string= (date->string dt2 :zone "JST" :format :asctime) "Thu Feb 16 17:30:25 +0900 2017")
(string= (date->string dt2 :zone "JST" :format :rfc-822) "Thu, 16 Feb 2017 17:30:25 +0900")
(string= (date->string dt2 :zone "JST" :format :rfc-850) "Thu, 16-Feb-2017 17:30:25 +0900"))))
(deftest special-dates ()
(check
(= (easter-day 2001) (ymd->date 2001 4 15))
(= (easter-day 2002) (ymd->date 2002 3 31))
(= (easter-day 2005) (ymd->date 2005 3 27))
(= (easter-day 2011) (ymd->date 2011 4 24))
(= (vernal-equinox 2017)
(ymd->date 2017 3 20 10 28 32.05221712589264d0))
(= (summer-solstice 2017)
(ymd->date 2017 6 21 4 23 43.49940687417984d0))
(= (autumnal-equinox 2017)
(ymd->date 2017 9 22 20 1 8.430179357528687D0))
(= (winter-solstice 2017)
(ymd->date 2017 12 21 16 27 51.39586955308914d0))
(= (vernal-equinox 1959)
(ymd->date 1959 3 21 8 55 7.991203665733337d0))
(= (summer-solstice 1959)
(ymd->date 1959 6 22 3 49 50.55352360010147d0))
(= (autumnal-equinox 1959)
(ymd->date 1959 9 23 19 8 29.363870322704315D0))
(= (winter-solstice 1959)
(ymd->date 1959 12 22 14 34 33.68946969509125d0))))
(deftest date-arith ()
(check
(= (date+ (ymd->date 2016 2 28) 1) (ymd->date 2016 2 29))
(= (date+ (ymd->date 2016 2 28) 2) (ymd->date 2016 3 1))
(= (date- (ymd->date 2016 3 1) 2) (ymd->date 2016 2 28))
(= (date- (ymd->date 2016 3 1) 1) (ymd->date 2016 2 29))
(= (add-months (ymd->date 2016 2 29) 6) (ymd->date 2016 8 29))
(= (add-months (ymd->date 2016 2 29) 6 :eom-rule :eom-normal) (ymd->date 2016 8 31))
(= (add-months (ymd->date 2016 2 29) 6 :eom-rule :eom-no-leap-day) (ymd->date 2016 8 31))
(= (add-months (ymd->date 2016 2 28) 6 :eom-rule :eom-normal) (ymd->date 2016 8 28))
(= (add-months (ymd->date 2016 2 28) 6 :eom-rule :eom-no-leap-day) (ymd->date 2016 8 31))
(= (add-months (ymd->date 2016 2 29) 12) (ymd->date 2017 2 28))
(= (add-months (ymd->date 2016 2 29) 48) (ymd->date 2020 2 29))
(= (add-years (ymd->date 2016 2 29) 4) (add-months (ymd->date 2016 2 29) 48))
(= (add-months (ymd->date 2016 1 31) 1) (ymd->date 2016 2 29))
(= (add-months (ymd->date 2016 1 31) 2) (ymd->date 2016 3 31))
(= (add-months (ymd->date 2016 1 31) 3) (ymd->date 2016 4 30))
(= (add-months (ymd->date 2016 4 30) 1) (ymd->date 2016 5 30))
(= (add-months (ymd->date 2016 4 30) 1 :eom-rule :eom-normal) (ymd->date 2016 5 31))
(= (add-months (ymd->date 2016 4 30) 1 :eom-rule :eom-no-leap-day) (ymd->date 2016 5 31))
(= (add-months (ymd->date 2016 4 30) 46 :eom-rule :eom-normal) (ymd->date 2020 2 29))
(= (add-months (ymd->date 2016 4 30) 46 :eom-rule :eom-no-leap-day) (ymd->date 2020 2 28))
(= 0 (diff-days (ymd->date 2007 2 3 10 35 42) (ymd->date 2007 2 3 11 30 20)))
(= 2 (diff-days (ymd->date 2008 2 28 10 35 42) (ymd->date 2008 3 1 11 30 20)))
(= 366 (diff-days (ymd->date 2008 1 1 10 35 42) (ymd->date 2009 1 1 11 30 20)))
(= 365 (diff-days (ymd->date 2007 1 1 10 35 42) (ymd->date 2008 1 1 11 30 20)))))
(deftest date-arith-360 ()
(let ((test-cases
;; Start date End Date Bond Basis 30E/360 30E/360 ISDA Act/360
'(("2007-01-15" "2007-01-30" 0.041666667 0.041666667 0.041666667 0.041666667)
("2007-01-15" "2007-02-15" 0.083333333 0.083333333 0.083333333 0.086111111)
("2007-01-15" "2007-07-15" 0.5 0.5 0.5 0.502777778)
("2007-09-30" "2008-03-31" 0.5 0.5 0.5 0.508333333)
("2007-09-30" "2007-10-31" 0.083333333 0.083333333 0.083333333 0.086111111)
("2007-09-30" "2008-09-30" 1 1 1 1.016666667)
("2007-01-15" "2007-01-31" 0.044444444 0.041666667 0.041666667 0.044444444)
("2007-01-31" "2007-02-28" 0.077777778 0.077777778 0.083333333 0.077777778)
("2006-08-31" "2007-02-28" 0.494444444 0.494444444 0.5 0.502777778)
("2007-02-28" "2007-08-31" 0.508333333 0.505555556 0.5 0.511111111)
("2007-02-14" "2007-02-28" 0.038888889 0.038888889 0.044444444 0.038888889)
("2007-02-26" "2008-02-29" 1.008333333 1.008333333 1.011111111 1.022222222)
("2008-02-29" "2009-02-28" 0.997222222 0.997222222 0.994444444 1.013888889)
("2008-02-29" "2008-03-30" 0.086111111 0.086111111 0.083333333 0.083333333)
("2008-02-29" "2008-03-31" 0.088888889 0.086111111 0.083333333 0.086111111)
("2007-02-28" "2007-03-05" 0.019444444 0.019444444 0.013888889 0.013888889)
("2007-10-31" "2007-11-28" 0.077777778 0.077777778 0.077777778 0.077777778)
("2007-08-31" "2008-02-29" 0.497222222 0.497222222 0.5 0.505555556)
("2008-02-29" "2008-08-31" 0.505555556 0.502777778 0.5 0.511111111)
("2008-08-31" "2009-02-28" 0.494444444 0.494444444 0.494444444 0.502777778)
("2009-02-28" "2009-08-31" 0.508333333 0.505555556 0.5 0.511111111)))
(term-date (ymd->date 2009 2 28)))
(labels ((a= (a b)
(< (abs (- a b)) 0.000001)))
(combine-results
(loop for test in test-cases
collect (let ((d1 (string->date (first test)))
(d2 (string->date (second test)))
(bond-basis (third test))
(euro-basis (fourth test))
(german (fifth test))
(actual (sixth test)))
(check
(a= (diff-years d1 d2 :30a-360) bond-basis)
(a= (diff-years d1 d2 :30e-360) euro-basis)
(a= (diff-years d1 d2 :30e-360-isda :termination-date term-date) german)
(a= (diff-years d1 d2 :act-360) actual))))))))
(deftest date-arith-act-act ()
(let ((test-cases
(list
;; Start End Date F LC AFB ISDA ISMA
(list "2003-11-01" "2004-05-01" 2 nil 182/366 (+ 61/365 121/366) (/ 182 (* 2 182)))
(list "1999-02-01" "1999-07-01" 1 nil 150/365 150/365 (/ 150 (* 1 365)))
(list "1999-07-01" "2000-07-01" 1 nil 1 (+ 184/365 182/366) (/ 366 (* 1 366)))
(list "2002-08-15" "2003-07-15" 2 nil 334/365 334/365 (+ (/ 181 (* 2 181))
(/ 153 (* 2 184))))
(list "2003-07-15" "2004-01-15" 2 nil 184/365 (+ 170/365 14/366) (/ 184 (* 2 184)))
(list "1999-07-30" "2000-01-30" 2 t 184/365 (+ 155/365 29/366) (/ 184 (* 2 184)))
(list "2000-01-30" "2000-06-30" 2 t 152/366 152/366 (/ 152 (* 2 182)))
(list "1999-11-30" "2000-04-30" 4 t 152/366 (+ 32/365 120/366) (+ (/ 91 (* 4 91))
(/ 61 (* 4 92)))))))
(combine-results
(loop for test in test-cases
collect (let ((d1 (string->date (first test)))
(d2 (string->date (second test)))
(freq (third test))
(last-cpn (fourth test))
(afb (fifth test))
(isda (sixth test))
(isma (seventh test)))
(check
(= (diff-years d1 d2 :act-act-afb) afb)
(= (diff-years d1 d2 :act-act) isda)
(= (diff-years d1 d2 :act-act-isma :frequency freq :is-last-coupon last-cpn) isma)))))))
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