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;;; eshell-tests.el --- Eshell test suite -*- lexical-binding:t -*-
;; Copyright (C) 1999-2023 Free Software Foundation, Inc.
;; Author: John Wiegley <johnw@gnu.org>
;; 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/>.
;;; Commentary:
;; Eshell test suite.
;;; Code:
(require 'ert)
(require 'ert-x)
(require 'esh-mode)
(require 'eshell)
(require 'eshell-tests-helpers
(expand-file-name "eshell-tests-helpers"
(file-name-directory (or load-file-name
default-directory))))
;;; Tests:
(ert-deftest eshell-test/pipe-headproc ()
"Check that piping a non-process to a process command waits for the process"
(skip-unless (executable-find "cat"))
(with-temp-eshell
(eshell-match-command-output "echo hi | *cat"
"hi")))
(ert-deftest eshell-test/pipe-tailproc ()
"Check that piping a process to a non-process command waits for the process"
(skip-unless (executable-find "echo"))
(with-temp-eshell
(eshell-match-command-output "*echo hi | echo bye"
"bye\nhi\n")))
(ert-deftest eshell-test/pipe-headproc-stdin ()
"Check that standard input is sent to the head process in a pipeline"
(skip-unless (and (executable-find "tr")
(executable-find "rev")))
(with-temp-eshell
(eshell-insert-command "tr a-z A-Z | rev")
(eshell-insert-command "hello")
(eshell-send-eof-to-process)
(eshell-wait-for-subprocess)
(should (eshell-match-output "OLLEH\n"))))
(ert-deftest eshell-test/pipe-subcommand ()
"Check that piping with an asynchronous subcommand works"
(skip-unless (and (executable-find "echo")
(executable-find "cat")))
(with-temp-eshell
(eshell-match-command-output "echo ${*echo hi} | *cat"
"hi")))
(ert-deftest eshell-test/pipe-subcommand-with-pipe ()
"Check that piping with an asynchronous subcommand with its own pipe works"
(skip-unless (and (executable-find "echo")
(executable-find "cat")))
(with-temp-eshell
(eshell-match-command-output "echo ${*echo hi | *cat} | *cat"
"hi")))
(ert-deftest eshell-test/subcommand-reset-in-pipeline ()
"Check that subcommands reset `eshell-in-pipeline-p'."
(skip-unless (executable-find "cat"))
(dolist (template '("echo {%s} | *cat"
"echo ${%s} | *cat"
"*cat $<%s> | *cat"))
(eshell-command-result-equal
(format template "echo $eshell-in-pipeline-p")
nil)
(eshell-command-result-equal
(format template "echo | echo $eshell-in-pipeline-p")
"last")
(eshell-command-result-equal
(format template "echo $eshell-in-pipeline-p | echo")
"first")
(eshell-command-result-equal
(format template "echo | echo $eshell-in-pipeline-p | echo")
"t")))
(ert-deftest eshell-test/lisp-reset-in-pipeline ()
"Check that interpolated Lisp forms reset `eshell-in-pipeline-p'."
(skip-unless (executable-find "cat"))
(dolist (template '("echo (%s) | *cat"
"echo $(%s) | *cat"))
(eshell-command-result-equal
(format template "format \"%s\" eshell-in-pipeline-p")
"nil")))
(ert-deftest eshell-test/eshell-command/simple ()
"Test that the `eshell-command' function writes to the current buffer."
(skip-unless (executable-find "echo"))
(ert-with-temp-directory eshell-directory-name
(let ((eshell-history-file-name nil))
(with-temp-buffer
(eshell-command "*echo hi" t)
(should (equal (buffer-string) "hi\n"))))))
(ert-deftest eshell-test/eshell-command/pipeline ()
"Test that the `eshell-command' function writes to the current buffer.
This test uses a pipeline for the command."
(skip-unless (and (executable-find "echo")
(executable-find "cat")))
(ert-with-temp-directory eshell-directory-name
(let ((eshell-history-file-name nil))
(with-temp-buffer
(eshell-command "*echo hi | *cat" t)
(should (equal (buffer-string) "hi\n"))))))
(ert-deftest eshell-test/eshell-command/background ()
"Test that `eshell-command' works for background commands."
(skip-unless (executable-find "echo"))
(ert-with-temp-directory eshell-directory-name
(let ((eshell-history-file-name nil))
;; XXX: We can't write to the current buffer here, since
;; `eshell-command' will produce an invalid command in that
;; case. Just make sure the command runs and produces an output
;; buffer.
(eshell-command "*echo hi &")
(with-current-buffer "*Eshell Async Command Output*"
(while (get-buffer-process (current-buffer))
(accept-process-output))
(goto-char (point-min))
(should (looking-at "\\[echo\\(\\.exe\\)?\\(<[0-9]+>\\)?\\]"))))))
(ert-deftest eshell-test/eshell-command/background-pipeline ()
"Test that `eshell-command' works for background commands.
This test uses a pipeline for the command."
(skip-unless (and (executable-find "echo")
(executable-find "cat")))
(ert-with-temp-directory eshell-directory-name
(let ((eshell-history-file-name nil))
;; XXX: As above, we can't write to the current buffer here.
(eshell-command "*echo hi | *cat &")
(with-current-buffer "*Eshell Async Command Output*"
(while (get-buffer-process (current-buffer))
(accept-process-output))
(goto-char (point-min))
(should (looking-at "\\[cat\\(\\.exe\\)?\\(<[0-9]+>\\)?\\]"))))))
(ert-deftest eshell-test/command-running-p ()
"Modeline should show no command running"
(with-temp-eshell
(let ((eshell-status-in-mode-line t))
(should (memq 'eshell-command-running-string mode-line-format))
(should (equal eshell-command-running-string "--")))))
(ert-deftest eshell-test/forward-arg ()
"Test moving across command arguments"
(with-temp-eshell
(eshell-insert-command "echo $(+ 1 (- 4 3)) \"alpha beta\" file" 'ignore)
(let ((here (point)) begin valid)
(eshell-bol)
(setq begin (point))
(eshell-forward-argument 4)
(setq valid (= here (point)))
(eshell-backward-argument 4)
(prog1
(and valid (= begin (point)))
(eshell-bol)
(delete-region (point) (point-max))))))
(ert-deftest eshell-test/queue-input ()
"Test queuing command input"
(with-temp-eshell
(eshell-insert-command "sleep 2")
(eshell-insert-command "echo alpha" 'eshell-queue-input)
(let ((count 10))
(while (and eshell-current-command
(> count 0))
(sit-for 1)
(setq count (1- count))))
(should (eshell-match-output "alpha\n"))))
(ert-deftest eshell-test/flush-output ()
"Test flushing of previous output"
(with-temp-eshell
(eshell-insert-command "echo alpha")
(eshell-kill-output)
(should (eshell-match-output
(concat "^" (regexp-quote "*** output flushed ***\n") "$")))))
(ert-deftest eshell-test/run-old-command ()
"Re-run an old command"
(with-temp-eshell
(eshell-insert-command "echo alpha")
(goto-char eshell-last-input-start)
(string= (eshell-get-old-input) "echo alpha")))
(provide 'eshell-tests)
;;; eshell-tests.el ends here
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