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-rw-r--r--tests/utils.scm108
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+;;; ccwl --- Concise Common Workflow Language
+;;; Copyright © 2021 Arun Isaac <arunisaac@systemreboot.net>
+;;;
+;;; This file is part of ccwl.
+;;;
+;;; ccwl is free software: you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation, either version 3 of the License, or
+;;; (at your option) any later version.
+;;;
+;;; ccwl is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+;;; General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with ccwl. If not, see <https://www.gnu.org/licenses/>.
+
+(use-modules (srfi srfi-64)
+ (srfi srfi-71)
+ (ccwl utils))
+
+(test-begin "utils")
+
+(test-equal "pairify"
+ '((1 . 2) (3 . 4) (5 . 6))
+ (pairify (list 1 2 3 4 5 6)))
+
+(test-equal "plist->alist"
+ '((spam . 1) (ham . 2) (eggs . 3))
+ (plist->alist (list #:spam 1 #:ham 2 #:eggs 3)))
+
+(define plist-ref
+ (@@ (ccwl utils) plist-ref))
+
+(test-equal "plist-ref"
+ 2
+ (plist-ref (list #:spam 1 #:ham 2 #:eggs 3)
+ #:ham))
+
+(test-equal "plist-ref with absent key"
+ #f
+ (plist-ref (list #:spam 1 #:ham 2 #:eggs 3)
+ #:foo))
+
+(test-equal "group-keyword-arguments"
+ '(#:spam 1 #:ham (1 2 3) #:eggs (0))
+ ((@@ (ccwl utils) group-keyword-arguments)
+ (list #:spam 1 #:ham 1 2 3 #:eggs 0)
+ (list #:spam)))
+
+;; We cannot use test-equal to compare syntax objects, since
+;; test-equal does not preserve the lexical contexts of the test
+;; expressions.
+(test-assert "unsyntax-keywords"
+ (equal? (list #:ham #'1 #:eggs #'2)
+ ((module-ref (resolve-module '(ccwl utils))
+ 'unsyntax-keywords)
+ (list #'#:ham #'1 #'#:eggs #'2))))
+
+(test-equal "lambda**"
+ '(1 2 123 (1 2 3))
+ ((lambda** (a b #:key foo #:key* bar)
+ (list a b foo bar))
+ 1 2 #:foo 123 #:bar 1 2 3))
+
+(test-assert "syntax-lambda**"
+ (equal? (list #'1 #'2 #'123 (list #'1 #'2 #'3))
+ ((syntax-lambda** (a b #:key foo #:key* bar)
+ (list a b foo bar))
+ #'(foo 1 2 #:foo 123 #:bar 1 2 3))))
+
+(test-equal "filter-mapi"
+ '(1 3 5 7 9)
+ (filter-mapi (lambda (item index)
+ (and (even? index)
+ (1+ item)))
+ (iota 10)))
+
+(test-equal "mapn"
+ '((0 1 4 9 16)
+ (0 1 8 27 64))
+ (let ((squares cubes (mapn (lambda (n)
+ (values (expt n 2)
+ (expt n 3)))
+ (iota 5))))
+ (list squares cubes)))
+
+(test-equal "append-mapn"
+ '((0 0 1 1 2 4 3 9 4 16)
+ (0 0 1 1 2 8 3 27 4 64))
+ (let ((squares cubes (append-mapn (lambda (n)
+ (values (list n (expt n 2))
+ (list n (expt n 3))))
+ (iota 5))))
+ (list squares cubes)))
+
+(test-equal "foldn"
+ '(45 285)
+ (let ((sum sum-of-squares
+ (foldn (lambda (n sum sum-of-squares)
+ (values (+ sum n)
+ (+ sum-of-squares (expt n 2))))
+ (iota 10)
+ 0 0)))
+ (list sum sum-of-squares)))
+
+(test-end "utils")