(define-module (test datetime) :use-module (srfi srfi-64) :use-module (srfi srfi-64 test-error) :use-module (srfi srfi-71) :use-module (srfi srfi-88) :use-module ((srfi srfi-41) :select (stream->list stream-take)) :use-module (datetime) :use-module ((ice-9 format) :select (format)) :use-module ((ice-9 i18n) :select (make-locale)) :use-module ((guile) :select (LC_CTYPE LC_TIME))) ;;; Skipped since the code generating the (expected) error is disabled, due to ;;; optional fields at the end of string. See the (null? str) case is ;;; datetime->string (test-expect-fail "Premature end of string to parse") ;;; Global locale objects, to save all tests from creating them (define en_US (make-locale (list LC_CTYPE LC_TIME) "en_US.UTF-8")) (define sv_SE (make-locale (list LC_CTYPE LC_TIME) "sv_SE.UTF-8")) ;;; These tests begin by testing the basic objects, ;;; followed by the string parser. ;;; This to finally test the read syntax, to be able to ;;; us it in the rest of the tests. (test-group "Creation of basic objects" (test-group "Date" (test-group "Empty date" (let ((d (date))) (test-assert "Date creates date objects" (date? d)) (test-equal "Year is zero" 0 (year d)) (test-equal "Month is zero" 0 (month d)) (test-equal "Day is zero" 0 (day d)) (test-assert "Date-zero? agrees" (date-zero? d)))) (test-group "Date with keys" ;; Implicitly tests that month and day can go above ;; "regular" bounds (let ((d (date day: 40 month: 20 year: 10))) (test-assert "Date creation still works" (date? d)) (test-equal "Year is stored" 10 (year d)) (test-equal "Month is stored" 20 (month d)) (test-equal "Day is stored" 40 (day d)))) (test-group "Can't create date with non-integer components" (test-error "Invalid year" 'wrong-type-arg (date year: #f)) (test-error "Invalid month" 'wrong-type-arg (date month: #f)) (test-error "Invalid day" 'wrong-type-arg (date day: #f)))) (test-group "Time" (test-group "Empty time" (let ((t (time))) (test-assert "Time creates time objects" (time? t)) (test-equal "hour is zero" 0 (hour t)) (test-equal "minute is zero" 0 (minute t)) (test-equal "second is zero" 0 (second t)) (test-assert "Time zero agrees" (time-zero? t)))) (test-group "Time with keys" (let ((t (time second: 10 minute: 20 hour: 30))) (test-assert "Time creation still works" (time? t)) (test-equal "Hour is stored" 30 (hour t)) (test-equal "Minute is stored" 20 (minute t)) (test-equal "Second is stored" 10 (second t)))) (test-group "Can't create time with non-integer components" (test-error "Invalid hour" 'wrong-type-arg (time hour: #f)) (test-error "Invalid minute" 'wrong-type-arg (time minute: #f)) (test-error "Invalid second" 'wrong-type-arg (time second: #f)))) (test-group "Datetime" (let ((get-time% (@@ (datetime) get-time%))) (test-group "Empty datetime" (let ((dt (datetime))) ;; TODO figure out propper export of get-time% (test-assert "Datetime date is date" (date? (get-date dt))) (test-assert "Datetime date is zero" (date-zero? (get-date dt))) (test-assert "Datetime time is time" (time? (get-time% dt))) (test-assert "Datetime time is zero" (time-zero? (get-time% dt))) (test-eqv "Defalut timezone is #f" #f (get-timezone dt)))) (test-group "Datetime with keys" (let ((dt (datetime date: (date day: 10) time: (time minute: 20)))) (test-equal "Given date is stored" 10 (day (get-date dt))) (test-equal "Given time is stored" 20 (minute (get-time% dt)))) (test-error "Date must be a date" 'wrong-type-arg (datetime date: 1)) (test-error "Date must be a date" 'wrong-type-arg (datetime date: (time))) (test-assert "Date: #f gives still constructs a date" (date? (get-date (datetime date: #f)))) (test-error "Time must be a time" 'wrong-type-arg (datetime time: 1)) (test-error "Time must be a time" 'wrong-type-arg (datetime time: (date))) (test-assert "Time: #f gives still constructs a time" (time? (get-time% (datetime time: #f)))) (let ((dt (datetime hour: 20 day: 30))) (test-equal "Time objects can be implicitly created" 20 (hour (get-time% dt))) (test-equal "Date objects can be implicitly created" 30 (day (get-date dt)))) (let ((dt (datetime day: 30 time: (time hour: 20)))) (test-equal "\"Upper\" and \"lower\" keys can be mixed" 20 (hour (get-time% dt))) (test-equal "\"Upper\" and \"lower\" keys can be mixed" 30 (day (get-date dt)))) (let ((dt (datetime hour: 30 time: (time hour: 20)))) (test-equal "time: has priority over hour: (and the like)" 20 (hour (get-time% dt))))) (let ((dt (datetime day: 30 date: (date day: 20)))) (test-equal "date: has priority over day: (and the like)" 20 (day (get-date dt))))))) ;; Before the general parser, since it's a dependency string->datetime. (test-group "Parse Month" (test-equal "Parse full month name" jan (parse-month "January" en_US)) (test-equal "Parse full weird case" jan (parse-month "jaNuaRy" en_US)) (test-equal "Parse partial month name" jan (parse-month "Jan" en_US)) (test-equal "Failing parse of month name" -1 (parse-month "Unknown" en_US)) (test-equal "Overlap gives earliest month" mar (parse-month "m" en_US)) (test-equal "Parse month with different locale" may (parse-month "maj" sv_SE))) (test-group "Parser" (test-group "Simple individual rules" (test-group "Year" (test-equal "~Y year" (datetime year: 2020) (string->datetime "2020" "~Y")) (test-equal "~Y year single digit" (datetime year: 2) (string->datetime "2" "~Y")) (test-equal "~Y year leading zero" (datetime year: 2) (string->datetime "02" "~Y")) (test-error "~Y parses at max four digits" 'misc-error (string->datetime "14411" "~Y"))) (test-group "Month" (test-equal "~m month" (datetime month: 10) (string->datetime "10" "~m")) (test-equal "~m month single digit" (datetime month: 1) (string->datetime "1" "~m")) (test-equal "~m month leading zero" (datetime month: 1) (string->datetime "01" "~m")) (test-error "~m parses at max two digits" 'misc-error (string->datetime "111" "~m"))) ;; Extra tests are skipped for these, since they are shared with Month (test-equal "~d day" (datetime day: 20) (string->datetime "20" "~d")) (test-equal "~H hour" (datetime hour: 15) (string->datetime "15" "~H")) (test-equal "~M minute" (datetime minute: 30) (string->datetime "30" "~M")) (test-equal "~S second" (datetime second: 59) (string->datetime "59" "~S"))) (test-equal "Literal character" (datetime) (string->datetime "T" "T")) (test-equal "~~ '~'" (datetime) (string->datetime "~" "~~")) (test-error "Mismatched literal ~" 'misc-error (string->datetime "A" "~~")) (test-error "Stray ~ at end of fmt" 'misc-error (string->datetime "~" "~")) (test-error "Stray ~ in middle of fmt" 'misc-error (string->datetime "~ 1" "~ ~d")) (test-error "Unknown escape" 'misc-error (string->datetime "10" "~x")) (test-error "Premature end of string to parse" 'misc-error (string->datetime "" "~Y")) (test-error "Wrong Literal character" 'misc-error (string->datetime "T" "Z")) ;; Does the parser continue correctly (test-group "Tokens following each other" (test-equal "Year indirectly followed by month" (datetime year: 2020 month: 1) (string->datetime "2020-01" "~Y-~m")) ;; Does the parser handle tokens without delimiters, instead going by their max size (test-equal "Year directly follewed by month" (datetime year: 2020 month: 1) (string->datetime "202001" "~Y~m"))) (test-group "Timezone" (test-equal "~Z 'Z'" (datetime tz: "UTC") (string->datetime "Z" "~Z")) (test-equal "~Z Is optional" (datetime) (string->datetime "" "~Z")) (test-equal "~Z Is optional with stuff after" (datetime hour: 20) (string->datetime "20" "~Z~H")) ;; This was earlier a bug (test-equal "Zoneinfo is kept while not at end" (datetime year: 2020 tz: "UTC") (string->datetime "Z2020" "~Z~Y"))) (test-group "Month by name" ;; ~b, ~B, and ~h all does the same thing, and exists for symmetry with ;; datetime->string (where they don't do the exact same thing). Each is used ;; at least once below to ensure that they all work. (test-equal "Standalone month, and at end" (datetime month: 1) (string->datetime "Jan" "~b" en_US)) ;; Separate test from above, since month does the check itself (test-error "Stray ~ after month" 'misc-error (string->datetime "Jan" "~b~" en_US)) (test-equal "Month with explicit ~ after" (datetime month: mar) (string->datetime "M~" "~B~~" en_US)) (test-error "Month with other specifier directly after" 'misc-error (string->datetime "January" "~b~b")) (test-equal "Month with other explict char after" (datetime month: mar) (string->datetime "Mar|" "~h|" en_US)) (test-equal "Locale information is used" (datetime month: may) (string->datetime "Maj" "~h" sv_SE))) ;; TODO AM/PM string ~p (test-group "Complete parses" (test-equal "Parse complete ISO date" (datetime year: 2020 month: 3 day: 10) (string->datetime "2020-03-10" "~Y-~m-~d")) (test-equal "Parse complete ISO time" (datetime hour: 10 minute: 20 second: 30) (string->datetime "10:20:30" "~H:~M:~S")) (test-equal "Parse complete ISO date-time" (datetime year: 2020 month: 3 day: 10 hour: 10 minute: 20 second: 30) (string->datetime "2020-03-10T10:20:30" "~Y-~m-~dT~H:~M:~S"))) (test-group "string->datetime default format-specifier" (test-equal "Default date-time format-specifier takes ISO date-times" (datetime year: 2020 month: 3 day: 10 hour: 10 minute: 20 second: 30) (string->datetime "2020-03-10T10:20:30")) (test-equal "Default date-time format-specifier takes ISO date-times (with zone)" (datetime year: 2020 month: 3 day: 10 hour: 10 minute: 20 second: 30 tz: "UTC") (string->datetime "2020-03-10T10:20:30Z"))) (test-group "string->time" (test-assert "String->time returns time objects" (time? (string->time "10" "~H"))) (test-equal "String->time complete parse" (time hour: 10 minute: 20 second: 30) (string->time "10:20:30" "~H:~M:~S")) (test-equal "String->time complete parse, default format-specifier" (time hour: 10 minute: 20 second: 30) (string->time "10:20:30"))) (test-group "string->date" (test-assert "String->date returns time objects" (date? (string->date "10" "~Y"))) (test-equal "String->date complete parse" (date year: 2020 month: 3 day: 10) (string->date "2020-03-10" "~Y-~m-~d")) (test-equal "String->date complete parse, default format-specifier" (date year: 2020 month: 3 day: 10) (string->date "2020-03-10"))) (test-group "Pre-specified parsers" (test-group "ICS (RFC 5545)" (test-equal "date" (date year: 2020 month: 10 day: 20) (parse-ics-date "20201020")) (test-equal "time" (time hour: 10 minute: 20 second: 30) (parse-ics-time "102030")) (test-equal "datetime" (datetime year: 2020 month: 10 day: 20 hour: 10 minute: 20 second: 30) (parse-ics-datetime "20201020T102030")) (test-equal "datetime (with zone)" (datetime year: 2020 month: 10 day: 20 hour: 10 minute: 20 second: 30 tz: "UTC") (parse-ics-datetime "20201020T102030Z"))) (test-group "ISO" (test-equal "date" (date year: 2020 month: 10 day: 20) (parse-iso-date "2020-10-20")) (test-equal "time" (time hour: 10 minute: 20 second: 30) (parse-iso-time "10:20:30")) (test-equal "datetime" (datetime year: 2020 month: 10 day: 20 hour: 10 minute: 20 second: 30) (parse-iso-datetime "2020-10-20T10:20:30"))) ;; Parse freeform date ) (test-group "string->date/-time" (test-equal "Date like gives date" (date year: 2020 month: 10 day: 20) (string->date/-time "2020-10-20")) (test-equal "Time like gives time" (time hour: 10 minute: 20 second: 30) (string->date/-time "10:20:30")) (test-equal "Datetime like gives datetime" (datetime year: 2020 month: 10 day: 20 hour: 10 minute: 20 second: 30) (string->date/-time "2020-10-20T10:20:30")) ;; These are disabled since trailing fmt is allowed ;; (test-error "Bad date-like crashes" ;; 'misc-error (string->date/-time "2020-10")) ;; (test-error "Bad time-like crashes" ;; 'misc-error (string->date/-time "20:10")) (test-error "Really bad crashes" 'misc-error (string->date/-time "Hello")) )) (test-group "Reader extensions" ;; All tests have a list variant, to ensure that it plays nice with the rest ;; of scheme's syntax (test-equal "Basic time read syntax" (time hour: 10 minute: 20 second: 30) (test-read-eval-string "#10:20:30")) (test-equal "Basic time read syntax in list" (list (time hour: 10 minute: 20 second: 30)) (test-read-eval-string "(list #10:20:30)")) (test-equal "Basic date read syntax" (date year: 2020 month: 3 day: 10) (test-read-eval-string "#2020-03-10")) (test-equal "Basic date read syntax in list" (list (date year: 2020 month: 3 day: 10)) (test-read-eval-string "(list #2020-03-10)")) (test-equal "Basic datetime read syntax" (datetime date: (date year: 2020 month: 3 day: 10) time: (time hour: 10 minute: 20 second: 30)) (test-read-eval-string "#2020-03-10T10:20:30")) (test-equal "Basic datetime read syntax in list" (list (datetime date: (date year: 2020 month: 3 day: 10) time: (time hour: 10 minute: 20 second: 30))) (test-read-eval-string "(list #2020-03-10T10:20:30)")) (test-equal "Basic datetime read syntax with Z" (datetime date: (date year: 2020 month: 3 day: 10) time: (time hour: 10 minute: 20 second: 30) tz: "UTC") (test-read-eval-string "#2020-03-10T10:20:30Z")) (test-equal "Basic datetime read syntax with Z in list" (list (datetime date: (date year: 2020 month: 3 day: 10) time: (time hour: 10 minute: 20 second: 30) tz: "UTC")) (test-read-eval-string "(list #2020-03-10T10:20:30Z)")) ) (test-equal "Datetime->unix-time" 1656005146 (datetime->unix-time #2022-06-23T17:25:46Z)) (test-equal "Datetime->unix-time before epoch" -62167219200 (datetime->unix-time #0000-01-01T00:00:00Z)) (test-equal "unix-time->datetime" #2020-09-13T12:26:40Z (unix-time->datetime 1600000000)) (test-equal "unix-time->datetime on epoch" #1970-01-01T00:00:00Z (unix-time->datetime 0)) (test-equal "unix-time->datetime before epoch" #1919-04-20T11:33:20Z (unix-time->datetime -1600000000)) ;; (unix-time->datetime (expt 2 31)) ; => #2038-01-19T03:14:08Z ;; (unix-time->datetime (1+ (expt 2 31))) ; => #2038-01-19T03:14:09Z ;; (unix-time->datetime (- (expt 2 31))) ; => #1901-12-13T20:45:52Z (test-assert "Current datetime returns a datetime" (datetime? (current-datetime))) (test-equal "Current datetime returns with tz: UTC" "UTC" (get-timezone (current-datetime))) (test-assert "Current-date returns a date" (date? (current-date))) ;; TODO write these, also, check connection to get-time% get-datetime as-date as-time as-datetime (test-group "Leap years" (test-assert "Most years are't leap years" (not (leap-year? 1999))) (test-assert "Except if it's divisible by 4" (leap-year? 2020)) (test-assert "But not by 100" (not (leap-year? 1900))) (test-assert "Except if also divisible by 400" (leap-year? 2000))) (test-assert "31 days in most month" (days-in-month (date month: jan))) (test-assert "30 days in some month" (days-in-month (date month: apr))) (test-assert "28 days in februrary on regular year" (days-in-month (date month: feb year: 2022))) (test-assert "29 days in februrary on leap year" (days-in-month (date month: feb year: 2000))) (test-error "To low month" 'out-of-range (days-in-month (date month: 0))) (test-error "To high month" 'out-of-range (days-in-month (date month: 13))) (test-equal "365 days in regular year" 365 (days-in-year (date year: 2022))) (test-equal "366 days in leap year" 366 (days-in-year (date year: 2000))) (test-equal "Start of month" #2020-01-01 (start-of-month #2020-01-15)) (test-equal "End of month" #2000-02-29 (end-of-month #2000-02-01)) (test-equal "Start of year" #2020-01-01 (start-of-year #2020-12-31)) ;; Note that end-of-year (apparently) doesn't exist (test-group "Date streams" (test-equal "Day stream" (list #2020-01-01 #2020-01-02 #2020-01-03 #2020-01-04 #2020-01-05) (stream->list 5 (day-stream #2020-01-01))) (test-equal "Week stream" (list #2020-01-01 #2020-02-01 #2020-03-01 #2020-04-01 #2020-05-01) (stream->list 5 (month-stream #2020-01-01))) (test-equal "Month stream" (list #2020-01-01 #2020-01-08 #2020-01-15 #2020-01-22 #2020-01-29) (stream->list 5 (week-stream #2020-01-01)))) ;; See time< tests for more context (test-group "Min/max" (test-equal "Time min" #07:40:50 (time-min #10:20:30 #07:40:50)) (test-equal "Time max" #10:20:30 (time-max #10:20:30 #07:40:50)) (test-equal "Date min" #2020-02-02 (date-min #2020-02-02 #2020-03-01)) (test-equal "Date max" #2020-03-01 (date-max #2020-02-02 #2020-03-01)) (test-equal "Datetime min" #2020-02-02T10:20:30 (datetime-min #2020-02-02T10:20:30 #2020-03-01T07:40:50)) (test-equal "Datetime max" #2020-03-01T07:40:50 (datetime-max #2020-02-02T10:20:30 #2020-03-01T07:40:50))) (test-equal "Week day" thu (week-day #2022-06-23)) (test-equal "week-1-start" #2019-12-30 (week-1-start #2020-01-01 mon)) ;; Possibly add case where the end of the year uses next years week numbers (test-equal "Week number at end of year" 53 (week-number #2008-12-31 sun)) (test-equal "Week number at start of year" 53 (week-number #2009-01-01 sun)) (test-equal #2008-12-28 (date-starting-week 53 (date year: 2008) sun)) (test-equal #2007-12-30 (date-starting-week 1 (date year: 2008) sun)) (test-group "Week day name" (test-equal "Simple" "Saturday" (week-day-name sat locale: en_US)) (test-equal "Truncated" "Sa" (week-day-name sat 2 locale: en_US)) (test-equal "Other locale" "lördag" (week-day-name sat locale: sv_SE)) (test-equal "Other locale, truncated" "lö" (week-day-name sat 2 locale: sv_SE))) ;; TODO timespans can be both date, times, and datetimes ;; Check those cases? (test-group "Overlapping timespans" ;; A B C D E ¬F ;; |s1| : |s2| : |s1| : |s2| : : |s1| ;; | | : | | : | ||s2| : |s1|| | : |s1||s2| : | | ;; | ||s2| : |s1|| | : | || | : | || | : | || | : ;; | | : | | : | || | : | || | : | || | : |s2| ;; | | : | | : | | : | | : : | | (test-assert "End of S1 overlaps start of S2" (timespan-overlaps? #10:00:00 #12:00:00 #11:00:00 #13:00:00)) (test-assert "Start of S1 overlaps end of S2" (timespan-overlaps? #11:00:00 #13:00:00 #10:00:00 #12:00:00)) (test-assert "S1 complete encompasses S2" (timespan-overlaps? #10:00:00 #13:00:00 #11:00:00 #12:00:00)) (test-assert "S2 complete encompasses S1" (timespan-overlaps? #11:00:00 #12:00:00 #10:00:00 #13:00:00)) (test-assert "S1 is equal to S2" (timespan-overlaps? #11:00:00 #12:00:00 #11:00:00 #12:00:00)) (test-assert "S1 dosesn't overlap S2" (not (timespan-overlaps? #10:00:00 #11:00:00 #12:00:00 #13:00:00))) (test-assert "If the events only share an instant they don't overlap" (not (timespan-overlaps? #10:00:00 #12:00:00 #12:00:00 #14:00:00)))) (test-equal #2022-06-25 (find-first-week-day sat #2022-06-23)) (test-group "All weekdays in <>" (test-equal "month, if starting from beginning of month" (list #2022-06-03 #2022-06-10 #2022-06-17 #2022-06-24) (all-wday-in-month fri #2022-06-01)) (test-equal "month, if starting from the middle" (list #2022-06-24) (all-wday-in-month fri #2022-06-23)) (test-equal "year, if starting from the beggining" (list #2022-01-07 #2022-01-14 #2022-01-21 #2022-01-28 #2022-02-04 #2022-02-11 #2022-02-18 #2022-02-25 #2022-03-04 #2022-03-11 #2022-03-18 #2022-03-25 #2022-04-01 #2022-04-08 #2022-04-15 #2022-04-22 #2022-04-29 #2022-05-06 #2022-05-13 #2022-05-20 #2022-05-27 #2022-06-03 #2022-06-10 #2022-06-17 #2022-06-24 #2022-07-01 #2022-07-08 #2022-07-15 #2022-07-22 #2022-07-29 #2022-08-05 #2022-08-12 #2022-08-19 #2022-08-26 #2022-09-02 #2022-09-09 #2022-09-16 #2022-09-23 #2022-09-30 #2022-10-07 #2022-10-14 #2022-10-21 #2022-10-28 #2022-11-04 #2022-11-11 #2022-11-18 #2022-11-25 #2022-12-02 #2022-12-09 #2022-12-16 #2022-12-23 #2022-12-30) (all-wday-in-year fri #2022-01-01)) (test-equal "year, if starting from the middle" (list #2022-06-03 #2022-06-10 #2022-06-17 #2022-06-24 #2022-07-01 #2022-07-08 #2022-07-15 #2022-07-22 #2022-07-29 #2022-08-05 #2022-08-12 #2022-08-19 #2022-08-26 #2022-09-02 #2022-09-09 #2022-09-16 #2022-09-23 #2022-09-30 #2022-10-07 #2022-10-14 #2022-10-21 #2022-10-28 #2022-11-04 #2022-11-11 #2022-11-18 #2022-11-25 #2022-12-02 #2022-12-09 #2022-12-16 #2022-12-23 #2022-12-30) (all-wday-in-year fri #2022-06-01))) ;; TODO in-date-range? (test-equal "weekday-list" (list wed thu fri sat sun mon tue) (weekday-list wed)) (test-equal "start of week" #2022-06-20 (start-of-week #2022-06-23 mon)) (test-equal "end of week" #2022-06-26 (end-of-week #2022-06-23 mon)) (test-group "month-days" (call-with-values (lambda () (month-days #2022-06-01 mon)) (lambda (before actual after) (test-equal "before" (list #2022-05-30 #2022-05-31) before) (test-equal "actual" (stream->list 30 (day-stream #2022-06-01)) actual) (test-equal "after" (list #2022-07-01 #2022-07-02 #2022-07-03) after)))) (test-group "Days in interval" (test-equal "Steps from start to end of month" 31 (days-in-interval #2022-01-01 #2022-01-31)) (test-error "Negative intervals should fail" 'misc-error (days-in-interval #2022-01-01 #2020-01-31))) (test-equal "Year day" 191 (year-day #2020-07-09)) (test-group "Convertions to decimal time" (test-group "Time->decimal-hour" (test-equal "Exact number of hours is whole number" 5.0 (time->decimal-hour (time hour: 5))) (test-equal "Minutes are \"base\" 60" 5.5 (time->decimal-hour (time hour: 5 minute: 30))) (test-equal "60 Minutes gives a whole hour" 6.0 (time->decimal-hour (time hour: 5 minute: 60))) (test-equal "A second is the right length" (/ 1.0 3600) (time->decimal-hour (time second: 1)))) (test-group "Datetime->decimal-hour" (test-equal "Datetimes without dates work as times" 5.5 (datetime->decimal-hour (datetime hour: 5 minute: 30))) (test-equal "Full day" 24.0 (datetime->decimal-hour (datetime day: 1))) (test-error "Can't get length of month without information about which month" 'misc-error (datetime->decimal-hour (datetime month: 1))) (test-equal "Can get length of month if we have a month" (* 31 24.0) (datetime->decimal-hour (datetime month: 1) #2020-01-01)))) ;; TODO date-range (test-group "To string" (test-group "Datetime->string" (test-equal "A letter becomes itself" "H" (datetime->string (datetime) "H")) (test-group "Single rules" (test-equal "~" (datetime->string (datetime) "~~")) (test-equal "01" (datetime->string (datetime hour: 1) "~H")) (test-equal " 1" (datetime->string (datetime hour: 1) "~k")) (test-equal "02" (datetime->string (datetime minute: 2) "~M")) (test-equal "03" (datetime->string (datetime second: 3) "~S")) (test-equal "0002" (datetime->string (datetime year: 2) "~Y")) (test-equal "02" (datetime->string (datetime month: 2) "~m")) (test-equal "04" (datetime->string (datetime day: 4) "~d")) (test-equal " 4" (datetime->string (datetime day: 4) "~e")) (test-equal "1600000000" (datetime->string #2020-09-13T12:26:40Z "~s")) (test-equal "2022-10-20" (datetime->string (datetime date: #2022-10-20) "~1")) (test-equal "10:20:30" (datetime->string (datetime time: #10:20:30) "~3")) (test-group "Locale dependant (en_US)" (test-equal "Saturday" (datetime->string (datetime date: (find-first-week-day sat #2020-01-01)) "~A" en_US)) (test-equal "Sat" (datetime->string (datetime date: (find-first-week-day sat #2020-01-01)) "~a" en_US)) (test-equal "January" (datetime->string (datetime date: (date month: 1)) "~B" en_US)) (test-equal "Jan" (datetime->string (datetime date: (date month: 1)) "~b" en_US))) (test-group "Locale dependant (sv_SE)" (test-equal "lördag" (datetime->string (datetime date: (find-first-week-day sat #2020-01-01)) "~A" sv_SE)) (test-equal "lör" (datetime->string (datetime date: (find-first-week-day sat #2020-01-01)) "~a" sv_SE)) (test-equal "januari" (datetime->string (datetime date: (date month: 1)) "~B" sv_SE)) (test-equal "jan" (datetime->string (datetime date: (date month: 1)) "~b" sv_SE))) (test-group "Timezone" (test-equal "Z" (datetime->string (datetime tz: "UTC") "~Z")) (test-equal "" (datetime->string (datetime tz: #f) "~Z")) (test-equal "" (datetime->string (datetime tz: "Anything else") "~Z")))) (test-equal "Default fomat specifier gives ISO-formatted date" "2006-01-02T15:04:05" (datetime->string #2006-01-02T15:04:05)) (test-group "Invalid specifiers" (test-equal "" (datetime->string (datetime) "~x" allow-unknown?: #t)) (test-error 'misc-error (datetime->string (datetime) "~x"))) (test-group "Print syntax for datatypes" (test-equal "Date writer" "#2020-01-02" (with-output-to-string (lambda () (write #2020-01-02)))) (test-equal "Time writer" "#20:30:40" (with-output-to-string (lambda () (write #20:30:40)))) (test-equal "Datetime writer" "#2020-01-02T20:30:40" (with-output-to-string (lambda () (write #2020-01-02T20:30:40)))) (test-equal "Datetime writer (with tz)" "#2020-01-02T20:30:40Z" (with-output-to-string (lambda () (write #2020-01-02T20:30:40Z)))))) ;; Really basic tests, since these are rather thin wrappers (test-equal "date->string" "0000-00-00" (date->string (date))) (test-equal "time->string" "00:00:00" (time->string (time)))) (test-group "Equals" ;; date=?, time=?, and datetime=? are alias to their non-question-mark ;; alternatives. Using them interchangably below. (test-group "date" (test-assert "Zero dates are all equal" (date=)) (test-assert "A single date is equal to itself" (date=? #2020-10-20)) (test-assert "Two dates are equal to each other" (date= #2020-10-20 #2020-10-20)) (test-assert "Two dates which are NOT equal to each other" (not (date= #2020-10-20 #2020-10-21))) (test-assert "More than two dates which are all equal" (date=? #2020-10-20 #2020-10-20 #2020-10-20))) (test-group "time" (test-assert "Zero times are all equal" (time=)) (test-assert "A single time is equal to itself" (time=? #20:30:40)) (test-assert "Two times are equal to each other" (time= #20:30:40 #20:30:40)) (test-assert "Two times which are NOT equal to each other" (not (time= #20:30:40 #10:30:40))) (test-assert "More than two times which are all equal" (time=? #20:30:40 #20:30:40 #20:30:40))) (test-group "Datetime" (test-assert "Zero datetimes \"all\" are equal" (datetime=)) (test-assert "A single datetime is equal to itself" (datetime= (datetime))) (test-assert "Two equal datetimes are equal" (datetime= (datetime hour: 1) (datetime hour: 1))) (test-assert "Two dissimmalar datetimes aren't equal" (not (datetime= (datetime hour: 1) (datetime hour: 2)))) ;; NOTE timezone interactions are non-existant (test-assert "Two datetimes are equal, regardless of timezone" (datetime= (datetime) (datetime tz: "Something Else"))) (test-assert "Three equal datetimes are equal" (datetime= (datetime hour: 1) (datetime hour: 1) (datetime hour: 1))))) (test-group "Comparisons" (test-group "Zero arguments" (test-group "Dates" (test-assert "zero dates are greater" (date<)) (test-assert "zero dates are less" (date>))) (test-group "Times" (test-assert "zero times are greater" (time<)) (test-assert "zero times are less" (time>))) (test-group "Datetimes" (test-assert "zero datetimes are greater" (datetime<)) (test-assert "zero datetimes are less" (datetime>)))) (test-group "Single argument" (test-group "Dates" (test-assert "one date are greater" (date< (date))) (test-assert "one date are less" (date> (date)))) (test-group "Times" (test-assert "one time are greater" (time< (time))) (test-assert "one time are less" (time> (time)))) (test-group "Datetimes" (test-assert "one datetime are greater" (datetime< (datetime))) (test-assert "one datetime are less" (datetime> (datetime))))) (test-group "Two arguments" (test-group "Dates" (test-assert "positive comparison" (date< (date day: 1) (date day: 2))) (test-assert "negative comparison" (not (date> (date day: 1) (date day: 2))))) (test-group "Times" (test-assert "positive comparison" (time< (time hour: 1) (time hour: 2))) (test-assert "negative comparison" (not (time> (time hour: 1) (time hour: 2))))) (test-group "Datetimes" (test-assert "positive comparison" (datetime< (datetime day: 1) (datetime day: 2))) (test-assert "negative comparison" (not (datetime> (datetime day: 1) (datetime day: 2)))))) (test-group "Two arguments" (test-group "Dates" (test-assert "positive comparison" (date< (date day: 1) (date day: 2) (date day: 3))) (test-assert "negative comparison" (not (date< (date day: 1) (date day: 2) (date day: 1))))) (test-group "Times" (test-assert "positive comparison" (time< (time hour: 1) (time hour: 2) (time hour: 3))) (test-assert "negative comparison" (not (date< (date day: 1) (date day: 2) (date day: 1))))) (test-group "Datetimes" (test-assert "positive comparison" (datetime< (datetime day: 1) (datetime day: 2) (datetime day: 3))) (test-assert "negative comparison" (not (datetime< (datetime day: 1) (datetime day: 2) (datetime day: 1))))))) ;; TODO date/-time< date/-time date/-time>? date/-time>= date/-time>=? (test-group "Arithmetic" (test-group "Date" (test-group "Unary application" (test-equal "Date+ single argument returns itself" (date) (date+ (date))) (test-equal "Date- single argument returns itself" (date) (date- (date)))) (test-group "Simple cases" (test-group "Days" (test-equal "Add" #2020-01-06 (date+ #2020-01-01 (date day: 5))) (test-equal "Remove" #2020-01-01 (date- #2020-01-06 (date day: 5)))) (test-group "Months" (test-equal "Add" #2020-06-01 (date+ #2020-01-01 (date month: 5))) (test-equal "Remove" #2020-01-01 (date- #2020-06-01 (date month: 5)))) (test-group "Years" (test-equal "Add" #2022-01-01 (date+ #2020-01-01 (date year: 2))) (test-equal "Remove" #2020-01-01 (date- #2022-01-01 (date year: 2))))) (test-group "Many operands" (test-equal #2021-02-02 (date+ #2020-01-01 (date day: 1) (date month: 1) (date year: 1)))) (test-group "Overflow" ;; Years don't overflow, so no need to test (test-equal "Day overflow" #2022-02-01 (date+ #2022-01-31 (date day: 1))) (test-equal "Month overflow" #2023-01-01 (date+ #2022-12-01 (date month: 1))) (test-equal "Date+Month overflow" #2023-01-01 (date+ #2022-12-31 (date day: 1)))) ;; NOTE (test-equal #2020-02-31 (date+ #2020-01-31 (date month: 1))) ) (test-group "Time" (test-group "Unary application" (test-equal "Time+ single argument returns itself" (time) (time+ (time))) (test-equal "Time- single argument returns itself" (time) (time- (time)))) (test-group "Simple cases" (test-group "Seconds" (test-equal "Add" #20:00:40 (time+ #20:00:00 (time second: 40))) (test-equal "Remove" #20:00:00 (time- #20:00:40 (time second: 40)))) (test-group "Minutes" (test-equal "Add" #20:10:00 (time+ #20:00:00 (time minute: 10))) (test-equal "Remove" #20:00:00 (time- #20:10:00 (time minute: 10)))) (test-group "Hours" (test-equal "Add" #22:00:00 (time+ #20:00:00 (time hour: 2))) (test-equal "Remove" #20:00:00 (time- #22:00:00 (time hour: 2))))) (test-group "Overflowing cases" (test-group "Addition" (test-group "Single overflow" (call-with-values (lambda () (time+ #20:00:00 (time hour: 5))) (lambda (result overflow) (test-equal "Time" (time hour: 1) result) (test-equal "Overflow" 1 overflow)))) (test-group "Mulitple overflows" (call-with-values (lambda () (time+ #20:00:00 (time hour: 5) (time hour: 24))) (lambda (result overflow) (test-equal "Time" (time hour: 1) result) (test-equal "Overflow" 2 overflow))))) (test-group "Subtraction" (test-group "Single overflow" (call-with-values (lambda () (time- #20:00:00 (time hour: 25))) (lambda (result overflow) (test-equal "Time" (time hour: 19) result) (test-equal "Overflow" 1 overflow)))) (test-group "Mulitple overflows" (call-with-values (lambda () (time- (time hour: 4) (time hour: 10) (time hour: 24))) (lambda (result overflow) (test-equal "Time" (time hour: 18) result) (test-equal "Overflow" 2 overflow)))))))) ;; TODO datetime+ datetime- (test-group "Date difference" (test-assert "The differente between a date and itself is zero" (date-zero? (date-difference #2022-02-02 #2022-02-02))) (test-error "Later date must be first" 'misc-error (date-difference #2020-01-01 #2021-01-01)) (test-error "Negative months are invalid" 'misc-error (date-difference (date) (date month: -1))) (test-error "Negative days are invalid" 'misc-error (date-difference (date) (date day: -1))) (test-equal "Negative years ARE valid" (date year: 1) (date-difference (date) (date year: -1)))) ;; TODO datetime-difference