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+;;; esh-cmd-tests.el --- esh-cmd 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 <https://www.gnu.org/licenses/>.
+
+;;; Commentary:
+
+;; Tests for Eshell's command invocation.
+
+;;; 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))))
+
+(defvar eshell-test-value nil)
+
+;;; Tests:
+
+
+;; Command invocation
+
+(ert-deftest esh-cmd-test/simple-command-result ()
+ "Test invocation with a simple command."
+ (should (equal (eshell-test-command-result "+ 1 2") 3)))
+
+(ert-deftest esh-cmd-test/lisp-command ()
+ "Test invocation with an elisp command."
+ (should (equal (eshell-test-command-result "(+ 1 2)") 3)))
+
+(ert-deftest esh-cmd-test/lisp-command-with-quote ()
+ "Test invocation with an elisp command containing a quote."
+ (should (equal (eshell-test-command-result "(eq 'foo nil)") nil)))
+
+(ert-deftest esh-cmd-test/lisp-command-args ()
+ "Test invocation 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 esh-cmd-test/subcommand ()
+ "Test invocation with a simple subcommand."
+ (should (equal (eshell-test-command-result "{+ 1 2}") 3)))
+
+(ert-deftest esh-cmd-test/subcommand-args ()
+ "Test invocation 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 esh-cmd-test/subcommand-lisp ()
+ "Test invocation 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)))
+
+
+;; Logical operators
+
+(ert-deftest esh-cmd-test/and-operator ()
+ "Test logical && operator."
+ (skip-unless (executable-find "["))
+ (with-temp-eshell
+ (eshell-command-result-p "[ foo = foo ] && echo hi"
+ "hi\n")
+ (eshell-command-result-p "[ foo = bar ] && echo hi"
+ "\\`\\'")))
+
+(ert-deftest esh-cmd-test/or-operator ()
+ "Test logical || operator."
+ (skip-unless (executable-find "["))
+ (with-temp-eshell
+ (eshell-command-result-p "[ foo = foo ] || echo hi"
+ "\\`\\'")
+ (eshell-command-result-p "[ foo = bar ] || echo hi"
+ "hi\n")))
+
+
+;; Control flow statements
+
+(ert-deftest esh-cmd-test/for-loop ()
+ "Test invocation of a for loop."
+ (with-temp-eshell
+ (eshell-command-result-p "for i in 5 { echo $i }"
+ "5\n")))
+
+(ert-deftest esh-cmd-test/for-loop-list ()
+ "Test invocation of a for loop iterating over a list."
+ (with-temp-eshell
+ (eshell-command-result-p "for i in (list 1 2 (list 3 4)) { echo $i }"
+ "1\n2\n(3 4)\n")))
+
+(ert-deftest esh-cmd-test/for-loop-multiple-args ()
+ "Test invocation of a for loop iterating over multiple arguments."
+ (with-temp-eshell
+ (eshell-command-result-p "for i in 1 2 (list 3 4) { echo $i }"
+ "1\n2\n3\n4\n")))
+
+(ert-deftest esh-cmd-test/for-name-loop () ; bug#15231
+ "Test invocation of 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 esh-cmd-test/for-name-shadow-loop () ; bug#15372
+ "Test invocation of 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 esh-cmd-test/while-loop ()
+ "Test invocation of a while loop."
+ (skip-unless (executable-find "["))
+ (with-temp-eshell
+ (let ((eshell-test-value 0))
+ (eshell-command-result-p
+ (concat "while {[ $eshell-test-value -ne 3 ]} "
+ "{ setq eshell-test-value (1+ eshell-test-value) }")
+ "1\n2\n3\n"))))
+
+(ert-deftest esh-cmd-test/until-loop ()
+ "Test invocation of an until loop."
+ (skip-unless (executable-find "["))
+ (with-temp-eshell
+ (let ((eshell-test-value 0))
+ (eshell-command-result-p
+ (concat "until {[ $eshell-test-value -eq 3 ]} "
+ "{ setq eshell-test-value (1+ eshell-test-value) }")
+ "1\n2\n3\n"))))
+
+(ert-deftest esh-cmd-test/if-statement ()
+ "Test invocation of an if statement."
+ (skip-unless (executable-find "["))
+ (with-temp-eshell
+ (eshell-command-result-p "if {[ foo = foo ]} {echo yes}"
+ "yes\n")
+ (eshell-command-result-p "if {[ foo = bar ]} {echo yes}"
+ "\\`\\'")))
+
+(ert-deftest esh-cmd-test/if-else-statement ()
+ "Test invocation of an if/else statement."
+ (skip-unless (executable-find "["))
+ (with-temp-eshell
+ (eshell-command-result-p "if {[ foo = foo ]} {echo yes} {echo no}"
+ "yes\n")
+ (eshell-command-result-p "if {[ foo = bar ]} {echo yes} {echo no}"
+ "no\n")))
+
+(ert-deftest esh-cmd-test/unless-statement ()
+ "Test invocation of an unless statement."
+ (skip-unless (executable-find "["))
+ (with-temp-eshell
+ (eshell-command-result-p "unless {[ foo = foo ]} {echo no}"
+ "\\`\\'")
+ (eshell-command-result-p "unless {[ foo = bar ]} {echo no}"
+ "no\n")))
+
+(ert-deftest esh-cmd-test/unless-else-statement ()
+ "Test invocation of an unless/else statement."
+ (skip-unless (executable-find "["))
+ (with-temp-eshell
+ (eshell-command-result-p "unless {[ foo = foo ]} {echo no} {echo yes}"
+ "yes\n")
+ (eshell-command-result-p "unless {[ foo = bar ]} {echo no} {echo yes}"
+ "no\n")))
+
+;; esh-cmd-tests.el ends here