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;;; citar-format-test.el --- Tests for citar-format.el -*- lexical-binding: t; -*-
;;; Commentary:
;;; Code:
(require 'ert)
(require 'citar-format)
(ert-deftest citar-format-test--star-widths ()
"Test `citar-format--star-widths'."
(should (string-empty-p (citar-format--star-widths 80 nil)))
;; For single string, return the original string; not a copy
(let ((strings '("foo")))
(should (eq (car strings) (citar-format--star-widths 80 strings))))
(let ((strings '("foo" "bar" "baz")))
(should (equal "foobaz" (citar-format--star-widths 0 strings)))
(should (equal "foobabaz" (citar-format--star-widths 2 strings)))
(should (equal "foob…baz" (citar-format--star-widths 2 strings nil "…")))
(should (equal "foobarbaz" (citar-format--star-widths 3 strings)))
(should (equal "foobar baz" (citar-format--star-widths 4 strings)))
;; When hide-elided is t, the actual string contents should be equal
(cl-loop for w from 0 to 3
do (should (equal "foobarbaz" (citar-format--star-widths w strings t))))
;; ...unless the allocated width is greater than the string length
(should (equal "foobar baz" (citar-format--star-widths 4 strings)))
;; When hide-elided is t, the hidden text should have the 'display ""
;; property. N.B. equal-including-properties is slightly broken; see
;; https://debbugs.gnu.org/cgi/bugreport.cgi?bug=6581
(should (ert-equal-including-properties #("foobarbaz" 5 6 (display ""))
(citar-format--star-widths 2 strings t)))
;; Test with ellipsis
(should (ert-equal-including-properties #("foobarbaz" 4 6 (display "…"))
(citar-format--star-widths 2 strings t "…"))))
(let ((strings '("foo" "bar" "baz" "qux")))
(should (equal "foobaz" (citar-format--star-widths 0 strings)))
(should (equal "foobbaz" (citar-format--star-widths 1 strings)))
(should (equal "foobbazq" (citar-format--star-widths 2 strings)))
(should (equal "foobabazq" (citar-format--star-widths 3 strings)))
(should (equal "foobabazqu" (citar-format--star-widths 4 strings)))
;; Test with ellipsis
(should (equal "foob…baz…" (citar-format--star-widths 3 strings nil "…")))
(should (ert-equal-including-properties
#("foobarbazqux" 4 6 (display "…") 9 12 (display "…"))
(citar-format--star-widths 3 strings t "…")))))
(provide 'citar-format-test)
;;; citar-format-test.el ends here
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