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| | ;;; em-hist-tests.el --- em-hist test suite -*- lexical-binding:t -*-
;; Copyright (C) 2017-2024 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 'ert-x)
(require 'em-hist)
(ert-deftest eshell-write-readonly-history ()
"Test that having read-only strings in history is okay."
(ert-with-temp-file histfile
(let ((eshell-history-ring (make-ring 2)))
(ring-insert eshell-history-ring
(propertize "echo foo" 'read-only t))
(ring-insert eshell-history-ring
(propertize "echo bar" 'read-only t))
(eshell-write-history histfile))))
(ert-deftest eshell-add-history-element-to-empty-ring-with-erase-dups ()
"Test that we add a new history item to an empty history ring with `eshell-hist-ignoredups' set to 'erase."
(ert-with-test-buffer (:name "eshell-hist-test")
(let ((eshell-history-ring (make-ring 2))
(eshell-hist-ignoredups 'erase))
(eshell-add-input-to-history "echo foo")
(should (= (ring-length eshell-history-ring) 1))
(should (= (ring-member eshell-history-ring "echo foo") 0)))))
(ert-deftest eshell-add-history-element-to-non-empty-ring-with-erase-dups-erases-duplicate ()
"Test that when we add an existing history item to a non empty history ring with `eshell-hist-ignoredups' set to 'erase the existing element is erased."
(ert-with-test-buffer (:name "eshell-hist-test")
(let ((eshell-history-ring (make-ring 2))
(eshell-hist-ignoredups 'erase))
(eshell-add-input-to-history "echo foo")
(eshell-add-input-to-history "echo foo")
(should (= (ring-length eshell-history-ring) 1))
(should (= (ring-member eshell-history-ring "ls") 0)))))
(ert-deftest eshell-add-history-element-to-non-empty-ring-with-erase-dups-erases-duplicates ()
"Test that when we add an existing history item to a non empty history ring with `eshell-hist-ignoredups' set to 'erase the existing elements are erased."
(ert-with-test-buffer (:name "eshell-hist-test")
(let ((eshell-history-ring (make-ring 5))
(eshell-hist-ignoredups nil))
(eshell-add-input-to-history "echo foo")
(eshell-add-input-to-history "echo bar")
(eshell-add-input-to-history "echo foo")
(should (= (ring-length eshell-history-ring) 3))
(setq eshell-hist-ignoredups 'erase)
(eshell-add-input-to-history "echo foo")
(should (= (ring-length eshell-history-ring) 2))
(should (= (ring-member eshell-history-ring "echo foo") 0))
(should (= (ring-member eshell-history-ring "echo bar") 1))))))
(ert-deftest eshell-add-history-element-to-non-empty-ring-with-erase-dups-keeps-non-duplicates ()
"Test that when we add a new history item to a non empty history ring with `eshell-hist-ignoredups' set to 'erase the existing elements are not erased."
(ert-with-test-buffer (:name "eshell-hist-test")
(let ((eshell-history-ring (make-ring 2))
(eshell-hist-ignoredups 'erase))
(eshell-add-input-to-history "echo foo")
(eshell-add-input-to-history "echo bar")
(should (= (ring-length eshell-history-ring) 2))
(should (= (ring-member eshell-history-ring "echo foo") 1))
(should (= (ring-member eshell-history-ring "echo bar") 0)))))
(provide 'em-hist-test)
;;; em-hist-tests.el ends here
|