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154 lines
6.1 KiB
EmacsLisp
154 lines
6.1 KiB
EmacsLisp
;;; vtable-tests.el --- Tests for vtable.el -*- lexical-binding: t; -*-
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;; Copyright (C) 2022-2026 Free Software Foundation, Inc.
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
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;;; Commentary:
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;;
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;;; Code:
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(require 'vtable)
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(require 'ert)
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(require 'ert-x)
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(defun vtable-tests--make-no-header-2-object-table ()
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(make-vtable :columns '("a" "b" "c")
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:objects '(("foo" 1 2)
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("bar" 3 :zot))
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:insert nil))
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(ert-deftest test-vtable-compute-columns ()
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(should
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(equal (mapcar
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(lambda (column)
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(vtable-column-align column))
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(vtable--compute-columns
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(vtable-tests--make-no-header-2-object-table)))
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'(left right left))))
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(ert-deftest test-vtable-insert-object ()
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(should
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(equal (let ((buffer (get-buffer-create " *vtable-test*")))
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(pop-to-buffer buffer)
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(erase-buffer)
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(let* ((object1 '("Foo" 3))
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(object2 '("Gazonk" 8))
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(table (make-vtable
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:columns '("Name" (:name "Rank" :width 5))
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:objects (list object1 object2))))
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(mapc (lambda (args)
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(pcase-let ((`(,object ,location ,before) args))
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(vtable-insert-object table object location before)))
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`( ; Some correct inputs.
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;; object location before
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(("Fizz" 4) ,object1 nil)
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(("Bop" 7) ,object2 t)
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(("Zat" 5) 2 nil)
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(("Dib" 6) 3 t)
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(("Wup" 9) nil nil)
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(("Quam" 2) nil t)
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;; And some faulty inputs.
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(("Yat" 1) -1 nil) ; non-existing index, `before' is ignored.
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(("Vop" 10) 100 t) ; non-existing index, `before' is ignored.
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(("Jib" 11) ("Bleh" 0) nil) ; non-existing object.
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(("Nix" 0) ("Ugh" 0) t) ; non-existing object.
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))
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(mapcar #'cadr (vtable-objects table))))
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(number-sequence 0 11))))
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(ert-deftest test-vtable-unique-buffer ()
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(let ((table (vtable-tests--make-no-header-2-object-table)))
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(with-temp-buffer
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(vtable-insert table)
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(with-temp-buffer
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(should-error (vtable-insert table)))
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(with-temp-buffer
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(vtable-set-buffer table (current-buffer))
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(vtable-insert table)))))
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(ert-deftest test-vtable-read-only-buffer ()
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(let ((table (vtable-tests--make-no-header-2-object-table)))
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(with-temp-buffer
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(setq buffer-read-only t)
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(vtable-insert table))))
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(ert-deftest test-vtable-non-current-buffer-insert-object ()
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(let ((table (vtable-tests--make-no-header-2-object-table))
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(obj '("baz" 4 5)))
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(with-temp-buffer
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(vtable-insert table)
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(should (= (count-lines (point-min) (point-max)) 2))
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(with-temp-buffer
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(vtable-insert-object table obj))
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(should (= (count-lines (point-min) (point-max)) 3)))))
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(ert-deftest test-vtable-non-current-buffer-remove-object ()
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(let ((table (vtable-tests--make-no-header-2-object-table))
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(obj '("baz" 4 5)))
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(with-temp-buffer
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(vtable-insert table)
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(vtable-insert-object table obj)
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(should (= (count-lines (point-min) (point-max)) 3))
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(with-temp-buffer
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(vtable-remove-object table obj))
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(should (= (count-lines (point-min) (point-max)) 2)))))
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(ert-deftest test-vtable-non-current-buffer-update-object ()
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(let ((table (vtable-tests--make-no-header-2-object-table))
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(obj '("baz" 4 5))
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(obj-2 '("qux" 6 7)))
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(with-temp-buffer
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(vtable-insert table)
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(vtable-insert-object table obj)
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(should (= (count-lines (point-min) (point-max)) 3))
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(let ((line-2 (progn
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(goto-char (point-min))
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(forward-line 2)
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(buffer-substring (point) (point-max)))))
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(with-temp-buffer
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(vtable-update-object table obj-2 obj))
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(let ((line-2-new (progn
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(goto-char (point-min))
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(forward-line 2)
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(buffer-substring (point) (point-max)))))
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(should (= (count-lines (point-min) (point-max)) 3))
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(should (not (string= line-2 line-2-new))))))))
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(ert-deftest test-vtable--limit-string-with-face-remapped-buffer ()
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(with-temp-buffer
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(let ((text (propertize "XXXXX"
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'face 'variable-pitch)))
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(face-remap-add-relative 'default :height 1.5)
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;; TODO: Remove the pre-31 test, eventually.
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(cond ((eval-when-compile (< emacs-major-version 31))
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(let* ((x-width (string-pixel-width (substring text 0 1)))
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(char-limit 2)
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(pixel-limit (* char-limit x-width)))
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(should (eq
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char-limit
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(length (vtable--limit-string text pixel-limit))))))
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(t
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(let* ((x-width (string-pixel-width (substring text 0 1) (current-buffer)))
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(char-limit 2)
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(pixel-limit (* char-limit x-width)))
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(should (eq
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char-limit
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(length (vtable--limit-string text pixel-limit (current-buffer)))))))))))
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;;; vtable-tests.el ends here
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