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;;; em-script-tests.el --- em-script test suite -*- lexical-binding:t -*-
;; Copyright (C) 2022-2025 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/>.
;;; Commentary:
;; Tests for Eshell's script module.
;;; Code:
(require 'ert)
(require 'ert-x)
(require 'esh-mode)
(require 'eshell)
(require 'em-script)
(require 'eshell-tests-helpers
(expand-file-name "eshell-tests-helpers"
(file-name-directory (or load-file-name
default-directory))))
(defvar eshell-execute-file-output)
;;; Tests:
(ert-deftest em-script-test/source-script ()
"Test sourcing a simple script."
(ert-with-temp-file temp-file :text "echo hi"
(with-temp-eshell
(eshell-match-command-output (format "source %s" temp-file)
"hi\n"))))
(ert-deftest em-script-test/source-script/redirect ()
"Test sourcing a script and redirecting its output."
(ert-with-temp-file temp-file
:text "echo hi\necho bye"
(eshell-with-temp-buffer bufname "old"
(with-temp-eshell
(eshell-match-command-output
(format "source %s > #<%s>" temp-file bufname)
"\\`\\'"))
(should (equal (buffer-string) "hibye")))))
(ert-deftest em-script-test/source-script/redirect/dev-null ()
"Test sourcing a script and redirecting its output, including to /dev/null."
(ert-with-temp-file temp-file
:text "echo hi\necho bad > /dev/null\necho bye"
(eshell-with-temp-buffer bufname "old"
(with-temp-eshell
(eshell-match-command-output
(format "source %s > #<%s>" temp-file bufname)
"\\`\\'"))
(should (equal (buffer-string) "hibye")))))
(ert-deftest em-script-test/source-script/background ()
"Test sourcing a script in the background."
(skip-unless (executable-find "echo"))
(ert-with-temp-file temp-file
:text "*echo hi\nif {[ foo = foo ]} {*echo bye}"
(eshell-with-temp-buffer bufname "old"
(with-temp-eshell
(eshell-match-command-output
(format "source %s > #<%s> &" temp-file bufname)
"\\`\\'")
(eshell-wait-for-subprocess t))
(should (equal (buffer-string) "hi\nbye\n")))))
(ert-deftest em-script-test/source-script/arg-vars ()
"Test sourcing script with $0, $1, ... variables."
(ert-with-temp-file temp-file :text "printnl $0 \"$1 $2\""
(with-temp-eshell
(eshell-match-command-output (format "source %s one two" temp-file)
(format "%s\none two\n" temp-file)))))
(ert-deftest em-script-test/source-script/all-args-var ()
"Test sourcing script with the $* variable."
(ert-with-temp-file temp-file :text "printnl $*"
(with-temp-eshell
(eshell-match-command-output (format "source %s" temp-file)
"\\`\\'")
(eshell-match-command-output (format "source %s a" temp-file)
"a\n")
(eshell-match-command-output (format "source %s a b c" temp-file)
"a\nb\nc\n"))))
(ert-deftest em-script-test/execute-file ()
"Test running an Eshell script file via `eshell-execute-file'."
(ert-with-temp-file temp-file
:text "echo hi\necho bye"
(with-temp-buffer
(with-temp-eshell-settings
(eshell-execute-file temp-file nil t))
(should (equal (buffer-string) "hibye")))))
(ert-deftest em-script-test/execute-file/args ()
"Test running an Eshell script file with args via `eshell-execute-file'."
(ert-with-temp-file temp-file
:text "+ $@*"
(with-temp-buffer
(with-temp-eshell-settings
(eshell-execute-file temp-file '(1 2 3) t))
(should (equal (buffer-string) "6")))))
(ert-deftest em-script-test/execute-file/output-file ()
"Test `eshell-execute-file' redirecting to a file."
(ert-with-temp-file temp-file :text "echo more"
(ert-with-temp-file output-file :text "initial"
(with-temp-eshell-settings
(eshell-execute-file temp-file nil output-file))
(should (equal (eshell-test-file-string output-file) "moreinitial")))))
(ert-deftest em-script-test/execute-file/output-symbol ()
"Test `eshell-execute-file' redirecting to a symbol."
(ert-with-temp-file temp-file :text "echo hi\necho bye"
(with-temp-eshell-settings
(eshell-execute-file temp-file nil 'eshell-execute-file-output))
(should (equal eshell-execute-file-output "hibye"))))
(ert-deftest em-script-test/batch-file ()
"Test running an Eshell script file as a batch script."
(ert-with-temp-file temp-file
:text "echo hi"
(with-temp-buffer
(with-temp-eshell-settings
(call-process (expand-file-name invocation-name invocation-directory)
nil '(t nil) nil
"--batch" "-f" "eshell-batch-file" temp-file))
(should (equal (buffer-string) "hi\n")))))
(ert-deftest em-script-test/batch-file/shebang ()
"Test running an Eshell script file as a batch script via a shebang."
(skip-unless (not (memq system-type '(windows-nt ms-dos))))
(ert-with-temp-file temp-file
:text (format
"#!/usr/bin/env -S %s --batch -f eshell-batch-file\necho hi"
(expand-file-name invocation-name invocation-directory))
(set-file-modes temp-file #o744)
(with-temp-buffer
(with-temp-eshell-settings
(call-process temp-file nil '(t nil)))
(should (equal (buffer-string) "hi\n")))))
;; em-script-tests.el ends here
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