1 files changed, 252 insertions, 0 deletions
diff --git a/test/lisp/eshell/eshell.el b/test/lisp/eshell/eshell.el
new file mode 100644
index 00000000000..81898db79a7
--- /dev/null
+++ b/test/lisp/eshell/eshell.el
@@ -0,0 +1,252 @@
+;;; tests/eshell.el --- Eshell test suite
+
+;; Copyright (C) 1999-2015 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 <http://www.gnu.org/licenses/>.
+
+;;; Commentary:
+
+;; Eshell test suite.
+
+;;; Code:
+
+(require 'ert)
+(require 'eshell)
+
+(defmacro with-temp-eshell (&rest body)
+  "Evaluate BODY in a temporary Eshell buffer."
+  `(let* ((eshell-directory-name (make-temp-file "eshell" t))
+          (eshell-history-file-name nil)
+          (eshell-buffer (eshell t)))
+     (unwind-protect
+         (with-current-buffer eshell-buffer
+           ,@body)
+       (let (kill-buffer-query-functions)
+         (kill-buffer eshell-buffer)
+         (delete-directory eshell-directory-name t)))))
+
+(defun eshell-insert-command (text &optional func)
+  "Insert a command at the end of the buffer."
+  (goto-char eshell-last-output-end)
+  (insert-and-inherit text)
+  (funcall (or func 'eshell-send-input)))
+
+(defun eshell-match-result (regexp)
+  "Check that text after `eshell-last-input-end' matches REGEXP."
+  (goto-char eshell-last-input-end)
+  (should (string-match-p regexp (buffer-substring-no-properties
+                                  (point) (point-max)))))
+
+(defun eshell-command-result-p (text regexp &optional func)
+  "Insert a command at the end of the buffer."
+  (eshell-insert-command text func)
+  (eshell-match-result regexp))
+
+(defun eshell-test-command-result (command)
+  "Like `eshell-command-result', but not using HOME."
+  (let ((eshell-directory-name (make-temp-file "eshell" t))
+        (eshell-history-file-name nil))
+    (unwind-protect
+        (eshell-command-result command)
+      (delete-directory eshell-directory-name t))))
+
+;;; Tests:
+
+(ert-deftest eshell-test/simple-command-result ()
+  "Test `eshell-command-result' with a simple command."
+  (should (equal (eshell-test-command-result "+ 1 2") 3)))
+
+(ert-deftest eshell-test/lisp-command ()
+  "Test `eshell-command-result' with an elisp command."
+  (should (equal (eshell-test-command-result "(+ 1 2)") 3)))
+
+(ert-deftest eshell-test/for-loop ()
+  "Test `eshell-command-result' with a for loop.."
+  (let ((process-environment (cons "foo" process-environment)))
+    (should (equal (eshell-test-command-result
+                    "for foo in 5 { echo $foo }") 5))))
+
+(ert-deftest eshell-test/for-name-loop () ;Bug#15231
+  "Test `eshell-command-result' with a for loop using `name'."
+  (let ((process-environment (cons "name" process-environment)))
+    (should (equal (eshell-test-command-result
+                    "for name in 3 { echo $name }") 3))))
+
+(ert-deftest eshell-test/for-name-shadow-loop () ; bug#15372
+  "Test `eshell-command-result' with a for loop using an env-var."
+  (let ((process-environment (cons "name=env-value" process-environment)))
+    (with-temp-eshell
+     (eshell-command-result-p "echo $name; for name in 3 { echo $name }; echo $name"
+                              "env-value\n3\nenv-value\n"))))
+
+(ert-deftest eshell-test/lisp-command-args ()
+  "Test `eshell-command-result' with elisp and trailing args.
+Test that trailing arguments outside the S-expression are
+ignored.  e.g. \"(+ 1 2) 3\" => 3"
+  (should (equal (eshell-test-command-result "(+ 1 2) 3") 3)))
+
+(ert-deftest eshell-test/subcommand ()
+  "Test `eshell-command-result' with a simple subcommand."
+  (should (equal (eshell-test-command-result "{+ 1 2}") 3)))
+
+(ert-deftest eshell-test/subcommand-args ()
+  "Test `eshell-command-result' with a subcommand and trailing args.
+Test that trailing arguments outside the subcommand are ignored.
+e.g. \"{+ 1 2} 3\" => 3"
+  (should (equal (eshell-test-command-result "{+ 1 2} 3") 3)))
+
+(ert-deftest eshell-test/subcommand-lisp ()
+  "Test `eshell-command-result' with an elisp subcommand and trailing args.
+Test that trailing arguments outside the subcommand are ignored.
+e.g. \"{(+ 1 2)} 3\" => 3"
+  (should (equal (eshell-test-command-result "{(+ 1 2)} 3") 3)))
+
+(ert-deftest eshell-test/interp-cmd ()
+  "Interpolate command result"
+  (should (equal (eshell-test-command-result "+ ${+ 1 2} 3") 6)))
+
+(ert-deftest eshell-test/interp-lisp ()
+  "Interpolate Lisp form evaluation"
+  (should (equal (eshell-test-command-result "+ $(+ 1 2) 3") 6)))
+
+(ert-deftest eshell-test/interp-concat ()
+  "Interpolate and concat command"
+  (should (equal (eshell-test-command-result "+ ${+ 1 2}3 3") 36)))
+
+(ert-deftest eshell-test/interp-concat-lisp ()
+  "Interpolate and concat Lisp form"
+  (should (equal (eshell-test-command-result "+ $(+ 1 2)3 3") 36)))
+
+(ert-deftest eshell-test/interp-concat2 ()
+  "Interpolate and concat two commands"
+  (should (equal (eshell-test-command-result "+ ${+ 1 2}${+ 1 2} 3") 36)))
+
+(ert-deftest eshell-test/interp-concat-lisp2 ()
+  "Interpolate and concat two Lisp forms"
+  (should (equal (eshell-test-command-result "+ $(+ 1 2)$(+ 1 2) 3") 36)))
+
+(ert-deftest eshell-test/window-height ()
+  "$LINES should equal (window-height)"
+  (should (eshell-test-command-result "= $LINES (window-height)")))
+
+(ert-deftest eshell-test/window-width ()
+  "$COLUMNS should equal (window-width)"
+  (should (eshell-test-command-result "= $COLUMNS (window-width)")))
+
+(ert-deftest eshell-test/last-result-var ()
+  "Test using the \"last result\" ($$) variable"
+  (with-temp-eshell
+   (eshell-command-result-p "+ 1 2; + $$ 2"
+                            "3\n5\n")))
+
+(ert-deftest eshell-test/last-result-var2 ()
+  "Test using the \"last result\" ($$) variable twice"
+  (with-temp-eshell
+   (eshell-command-result-p "+ 1 2; + $$ $$"
+                             "3\n6\n")))
+
+(ert-deftest eshell-test/last-arg-var ()
+  "Test using the \"last arg\" ($_) variable"
+  (with-temp-eshell
+   (eshell-command-result-p "+ 1 2; + $_ 4"
+                             "3\n6\n")))
+
+(ert-deftest eshell-test/escape-nonspecial ()
+  "Test that \"\\c\" and \"c\" are equivalent when \"c\" is not a
+special character."
+  (with-temp-eshell
+   (eshell-command-result-p "echo he\\llo"
+                            "hello\n")))
+
+(ert-deftest eshell-test/escape-nonspecial-unicode ()
+  "Test that \"\\c\" and \"c\" are equivalent when \"c\" is a
+unicode character (unicode characters are nonspecial by
+definition)."
+  (with-temp-eshell
+   (eshell-command-result-p "echo Vid\\éos"
+                            "Vidéos\n")))
+
+(ert-deftest eshell-test/escape-nonspecial-quoted ()
+  "Test that the backslash is preserved for escaped nonspecial
+chars"
+  (with-temp-eshell
+   (eshell-command-result-p "echo \"h\\i\""
+                            ;; Backslashes are doubled for regexp.
+                            "h\\\\i\n")))
+
+(ert-deftest eshell-test/escape-special-quoted ()
+  "Test that the backslash is not preserved for escaped special
+chars"
+  (with-temp-eshell
+   (eshell-command-result-p "echo \"h\\\\i\""
+                            ;; Backslashes are doubled for regexp.
+                            "h\\\\i\n")))
+
+(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))))
+   (eshell-match-result "alpha\n")))
+
+(ert-deftest eshell-test/flush-output ()
+  "Test flushing of previous output"
+  (with-temp-eshell
+   (eshell-insert-command "echo alpha")
+   (eshell-kill-output)
+   (eshell-match-result (regexp-quote "*** output flushed ***\n"))
+   (should (forward-line))
+   (should (= (point) eshell-last-output-start))))
+
+(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 'esh-test)
+
+;;; tests/eshell.el ends here