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| | ;;; format-spec-tests.el --- tests for format-spec.el -*- lexical-binding: t -*-
;; Copyright (C) 2019-2022 Free Software Foundation, Inc.
;; This file is part of GNU Emacs.
;; GNU Emacs 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.
;; GNU Emacs 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 GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
;;; Code:
(require 'ert)
(require 'format-spec)
(ert-deftest format-spec-make ()
"Test `format-spec-make'."
(should-not (format-spec-make))
(should-error (format-spec-make ?b))
(should (equal (format-spec-make ?b "b") '((?b . "b"))))
(should-error (format-spec-make ?b "b" ?a))
(should (equal (format-spec-make ?b "b" ?a 'a)
'((?b . "b")
(?a . a)))))
(ert-deftest format-spec-parse-flags ()
"Test `format-spec--parse-flags'."
(should-not (format-spec--parse-flags nil))
(should-not (format-spec--parse-flags ""))
(should (equal (format-spec--parse-flags "-") '(:pad-right)))
(should (equal (format-spec--parse-flags " 0") '(:pad-zero)))
(should (equal (format-spec--parse-flags " -x0y< >^_z ")
'(:pad-right :pad-zero :chop-left :chop-right
:upcase :downcase))))
(ert-deftest format-spec-do-flags ()
"Test `format-spec--do-flags'."
(should (equal (format-spec--do-flags "" () nil nil) ""))
(dolist (flag '(:pad-zero :pad-right :upcase :downcase
:chop-left :chop-right))
(should (equal (format-spec--do-flags "" (list flag) nil nil) "")))
(should (equal (format-spec--do-flags "FOOBAR" '(:downcase :chop-right) 5 2)
" fo"))
(should (equal (format-spec--do-flags
"foobar" '(:pad-zero :pad-right :upcase :chop-left) 5 2)
"AR000")))
(ert-deftest format-spec-do-flags-truncate ()
"Test `format-spec--do-flags' truncation."
(let ((flags nil))
(should (equal (format-spec--do-flags "" flags nil 0) ""))
(should (equal (format-spec--do-flags "" flags nil 1) ""))
(should (equal (format-spec--do-flags "a" flags nil 0) ""))
(should (equal (format-spec--do-flags "a" flags nil 1) "a"))
(should (equal (format-spec--do-flags "a" flags nil 2) "a"))
(should (equal (format-spec--do-flags "asd" flags nil 0) ""))
(should (equal (format-spec--do-flags "asd" flags nil 1) "a")))
(let ((flags '(:chop-left)))
(should (equal (format-spec--do-flags "" flags nil 0) ""))
(should (equal (format-spec--do-flags "" flags nil 1) ""))
(should (equal (format-spec--do-flags "a" flags nil 0) ""))
(should (equal (format-spec--do-flags "a" flags nil 1) "a"))
(should (equal (format-spec--do-flags "a" flags nil 2) "a"))
(should (equal (format-spec--do-flags "asd" flags nil 0) ""))
(should (equal (format-spec--do-flags "asd" flags nil 1) "d"))))
(ert-deftest format-spec-do-flags-pad ()
"Test `format-spec--do-flags' padding."
(let ((flags nil))
(should (equal (format-spec--do-flags "" flags 0 nil) ""))
(should (equal (format-spec--do-flags "" flags 1 nil) " "))
(should (equal (format-spec--do-flags "a" flags 0 nil) "a"))
(should (equal (format-spec--do-flags "a" flags 1 nil) "a"))
(should (equal (format-spec--do-flags "a" flags 2 nil) " a")))
(let ((flags '(:pad-zero)))
(should (equal (format-spec--do-flags "" flags 0 nil) ""))
(should (equal (format-spec--do-flags "" flags 1 nil) "0"))
(should (equal (format-spec--do-flags "a" flags 0 nil) "a"))
(should (equal (format-spec--do-flags "a" flags 1 nil) "a"))
(should (equal (format-spec--do-flags "a" flags 2 nil) "0a")))
(let ((flags '(:pad-right)))
(should (equal (format-spec--do-flags "" flags 0 nil) ""))
(should (equal (format-spec--do-flags "" flags 1 nil) " "))
(should (equal (format-spec--do-flags "a" flags 0 nil) "a"))
(should (equal (format-spec--do-flags "a" flags 1 nil) "a"))
(should (equal (format-spec--do-flags "a" flags 2 nil) "a ")))
(let ((flags '(:pad-right :pad-zero)))
(should (equal (format-spec--do-flags "" flags 0 nil) ""))
(should (equal (format-spec--do-flags "" flags 1 nil) "0"))
(should (equal (format-spec--do-flags "a" flags 0 nil) "a"))
(should (equal (format-spec--do-flags "a" flags 1 nil) "a"))
(should (equal (format-spec--do-flags "a" flags 2 nil) "a0"))))
(ert-deftest format-spec-do-flags-chop ()
"Test `format-spec--do-flags' chopping."
(let ((flags '(:chop-left)))
(should (equal (format-spec--do-flags "a" flags 0 nil) ""))
(should (equal (format-spec--do-flags "a" flags 1 nil) "a"))
(should (equal (format-spec--do-flags "asd" flags 0 nil) ""))
(should (equal (format-spec--do-flags "asd" flags 1 nil) "d")))
(let ((flags '(:chop-right)))
(should (equal (format-spec--do-flags "a" flags 0 nil) ""))
(should (equal (format-spec--do-flags "a" flags 1 nil) "a"))
(should (equal (format-spec--do-flags "asd" flags 0 nil) ""))
(should (equal (format-spec--do-flags "asd" flags 1 nil) "a"))))
(ert-deftest format-spec-do-flags-case ()
"Test `format-spec--do-flags' case fiddling."
(dolist (flag '(:pad-zero :pad-right :chop-left :chop-right))
(let ((flags (list flag)))
(should (equal (format-spec--do-flags "a" flags nil nil) "a"))
(should (equal (format-spec--do-flags "A" flags nil nil) "A")))
(let ((flags (list flag :downcase)))
(should (equal (format-spec--do-flags "a" flags nil nil) "a"))
(should (equal (format-spec--do-flags "A" flags nil nil) "a")))
(let ((flags (list flag :upcase)))
(should (equal (format-spec--do-flags "a" flags nil nil) "A"))
(should (equal (format-spec--do-flags "A" flags nil nil) "A")))))
(ert-deftest format-spec ()
(should (equal (format-spec "" ()) ""))
(should (equal (format-spec "a" ()) "a"))
(should (equal (format-spec "b" '((?b . "bar"))) "b"))
(should (equal (format-spec "%%%b%%b%b%%" '((?b . "bar"))) "%bar%bbar%"))
(should (equal (format-spec "foo %b zot" `((?b . "bar")))
"foo bar zot"))
(should (equal (format-spec "foo %-10b zot" '((?b . "bar")))
"foo bar zot"))
(should (equal (format-spec "foo %10b zot" '((?b . "bar")))
"foo bar zot"))
(should (equal-including-properties
(format-spec (propertize "a" 'a 'b) '((?a . "foo")))
#("a" 0 1 (a b))))
(let ((fmt (concat (propertize "%a" 'a 'b)
(propertize "%%" 'c 'd)
"%b"
(propertize "%b" 'e 'f))))
(should (equal-including-properties
(format-spec fmt '((?b . "asd") (?a . "fgh")))
#("fgh%asdasd" 0 3 (a b) 3 4 (c d) 7 10 (e f))))))
(ert-deftest format-spec/function ()
(let* (called
(spec `((?a . "foo")
(?f . ,(lambda ()
(setq called t)
"bar")))))
(should (equal (format-spec "%a" spec) "foo"))
(should-not called)
(should (equal (format-spec "%f" spec) "bar"))
(should called)))
(ert-deftest format-spec-unknown ()
(should-error (format-spec "foo %b %z zot" '((?b . "bar"))))
(should-error (format-spec "foo %b %%%z zot" '((?b . "bar"))))
(should (equal (format-spec "foo %b %z zot" '((?b . "bar")) t)
"foo bar %z zot"))
(should (equal (format-spec "foo %4b %%%4z %%4 zot" '((?b . "bar")) t)
"foo bar %%%4z %%4 zot"))
(should (equal (format-spec "foo %4b %%%4z %%4 zot" '((?b . "bar")) 'ignore)
"foo bar %%4z %4 zot"))
(should (equal (format-spec "foo %4b %%%4z %%4 zot" '((?b . "bar")) 'delete)
"foo bar % %4 zot")))
(ert-deftest format-spec-flags ()
(should (equal (format-spec "foo %10b zot" '((?b . "bar")))
"foo bar zot"))
(should (equal (format-spec "foo % 10b zot" '((?b . "bar")))
"foo bar zot"))
(should (equal (format-spec "foo %-010b zot" '((?b . "bar")))
"foo bar0000000 zot"))
(should (equal (format-spec "foo %0-10b zot" '((?b . "bar")))
"foo bar0000000 zot"))
(should (equal (format-spec "foo %^10b zot" '((?b . "bar")))
"foo BAR zot"))
(should (equal (format-spec "foo %_10b zot" '((?b . "BAR")))
"foo bar zot"))
(should (equal (format-spec "foo %<4b zot" '((?b . "longbar")))
"foo gbar zot"))
(should (equal (format-spec "foo %>4b zot" '((?b . "longbar")))
"foo long zot")))
(ert-deftest format-spec-split ()
(should (equal (format-spec "foo %b bar" '((?b . "zot")) nil t)
'("foo " "zot" " bar")))
(should (equal (format-spec "%b bar" '((?b . "zot")) nil t)
'("zot" " bar")))
(should (equal (format-spec "%b" '((?b . "zot")) nil t)
'("zot")))
(should (equal (format-spec "foo %b" '((?b . "zot")) nil t)
'("foo " "zot"))))
;;; format-spec-tests.el ends here
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