;;; esh-var-tests.el --- esh-var test suite -*- lexical-binding:t -*-
;; Copyright (C) 2022 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 .
;;; Commentary:
;; Tests for Eshell's variable handling.
;;; Code:
(require 'ert)
(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:
;; Variable interpolation
(ert-deftest esh-var-test/interp-var ()
"Interpolate variable"
(should (equal (eshell-test-command-result "echo $user-login-name")
user-login-name)))
(ert-deftest esh-var-test/interp-quoted-var ()
"Interpolate quoted variable"
(should (equal (eshell-test-command-result "echo $'user-login-name'")
user-login-name))
(should (equal (eshell-test-command-result "echo $\"user-login-name\"")
user-login-name)))
(ert-deftest esh-var-test/interp-quoted-var-concat ()
"Interpolate and concat quoted variable"
(should (equal (eshell-test-command-result "echo $'user-login-name'-foo")
(concat user-login-name "-foo")))
(should (equal (eshell-test-command-result "echo $\"user-login-name\"-foo")
(concat user-login-name "-foo"))))
(ert-deftest esh-var-test/interp-lisp ()
"Interpolate Lisp form evaluation"
(should (equal (eshell-test-command-result "+ $(+ 1 2) 3") 6)))
(ert-deftest esh-var-test/interp-cmd ()
"Interpolate command result"
(should (equal (eshell-test-command-result "+ ${+ 1 2} 3") 6)))
(ert-deftest esh-var-test/interp-cmd-external ()
"Interpolate command result from external command"
(skip-unless (executable-find "echo"))
(with-temp-eshell
(eshell-command-result-p "echo ${*echo hi}"
"hi\n")))
(ert-deftest esh-var-test/interp-temp-cmd ()
"Interpolate command result redirected to temp file"
(should (equal (eshell-test-command-result "cat $") "hi")))
(ert-deftest esh-var-test/interp-concat-lisp ()
"Interpolate and concat Lisp form"
(should (equal (eshell-test-command-result "+ $(+ 1 2)3 3") 36)))
(ert-deftest esh-var-test/interp-concat-lisp2 ()
"Interpolate and concat two Lisp forms"
(should (equal (eshell-test-command-result "+ $(+ 1 2)$(+ 1 2) 3") 36)))
(ert-deftest esh-var-test/interp-concat-cmd ()
"Interpolate and concat command"
(should (equal (eshell-test-command-result "+ ${+ 1 2}3 3") 36)))
(ert-deftest esh-var-test/interp-concat-cmd2 ()
"Interpolate and concat two commands"
(should (equal (eshell-test-command-result "+ ${+ 1 2}${+ 1 2} 3") 36)))
(ert-deftest esh-var-test/interp-concat-cmd-external ()
"Interpolate command result from external command with concatenation"
(skip-unless (executable-find "echo"))
(with-temp-eshell
(eshell-command-result-p "echo ${echo hi}-${*echo there}"
"hi-there\n")))
(ert-deftest esh-var-test/quoted-interp-var ()
"Interpolate variable inside double-quotes"
(should (equal (eshell-test-command-result "echo \"$user-login-name\"")
user-login-name)))
(ert-deftest esh-var-test/quoted-interp-quoted-var ()
"Interpolate quoted variable inside double-quotes"
(should (equal (eshell-test-command-result
"echo \"hi, $'user-login-name'\"")
(concat "hi, " user-login-name)))
(should (equal (eshell-test-command-result
"echo \"hi, $\\\"user-login-name\\\"\"")
(concat "hi, " user-login-name))))
(ert-deftest esh-var-test/quoted-interp-lisp ()
"Interpolate Lisp form evaluation inside double-quotes"
(should (equal (eshell-test-command-result
"echo \"hi $(concat \\\"the\\\" \\\"re\\\")\"")
"hi there")))
(ert-deftest esh-var-test/quoted-interp-cmd ()
"Interpolate command result inside double-quotes"
(should (equal (eshell-test-command-result
"echo \"hi ${echo \\\"there\\\"}\"")
"hi there")))
(ert-deftest esh-var-test/quoted-interp-temp-cmd ()
"Interpolate command result redirected to temp file inside double-quotes"
(should (equal (eshell-test-command-result "cat \"$\"") "hi")))
;; Built-in variables
(ert-deftest esh-var-test/window-height ()
"$LINES should equal (window-height)"
(should (eshell-test-command-result "= $LINES (window-height)")))
(ert-deftest esh-var-test/window-width ()
"$COLUMNS should equal (window-width)"
(should (eshell-test-command-result "= $COLUMNS (window-width)")))
(ert-deftest esh-var-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 esh-var-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 esh-var-test/last-arg-var ()
"Test using the \"last arg\" ($_) variable"
(with-temp-eshell
(eshell-command-result-p "+ 1 2; + $_ 4"
"3\n6\n")))
;; esh-var-tests.el ends here