567 lines
25 KiB
EmacsLisp
567 lines
25 KiB
EmacsLisp
;;; em-pred-tests.el --- em-pred test suite -*- lexical-binding:t -*-
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;; Copyright (C) 2022-2024 Free Software Foundation, Inc.
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
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;;; Commentary:
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;; Tests for Eshell's argument predicates/modifiers.
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;;; Code:
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(require 'ert)
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(require 'esh-mode)
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(require 'eshell)
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(require 'em-glob)
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(require 'em-pred)
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(require 'eshell-tests-helpers
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(expand-file-name "eshell-tests-helpers"
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(file-name-directory (or load-file-name
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default-directory))))
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(defvar eshell-test-value nil)
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(defun eshell-eval-predicate (initial-value predicate)
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"Evaluate PREDICATE on INITIAL-VALUE, returning the result.
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PREDICATE is an Eshell argument predicate/modifier."
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(let ((eshell-test-value initial-value))
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(ignore-errors
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(eshell-test-command-result
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(format "echo $eshell-test-value(%s)" predicate)))))
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(defun eshell-parse-file-name-attributes (file)
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"Parse a fake FILE name to determine its attributes.
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Fake file names are file names beginning with \"/fake/\". This
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allows defining file names for fake files with various properties
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to query via predicates. Attributes are written as a
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comma-separate list of ATTR=VALUE pairs as the file's base name,
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like:
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/fake/type=-,modes=0755.el
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The following attributes are recognized:
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* \"type\": A single character describing the file type;
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accepts the same values as the first character of the file
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modes in `ls -l'.
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* \"modes\": The file's permission modes, in octal.
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* \"links\": The number of links to this file.
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* \"uid\": The UID of the file's owner.
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* \"gid\": The UID of the file's group.
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* \"atime\": The time the file was last accessed, in seconds
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since the UNIX epoch.
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* \"mtime\": As \"atime\", but for modification time.
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* \"ctime\": As \"atime\", but for inode change time.
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* \"size\": The file's size in bytes."
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(mapcar (lambda (i)
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(pcase (split-string i "=")
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(`("modes" ,modes)
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(cons 'modes (string-to-number modes 8)))
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(`(,(and (or "links" "uid" "gid" "size") key) ,value)
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(cons (intern key) (string-to-number value)))
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(`(,(and (or "atime" "mtime" "ctime") key) ,value)
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(cons (intern key) (time-convert (string-to-number value) t)))
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(`(,key ,value)
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(cons (intern key) value))
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(_ (error "invalid format %S" i))))
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(split-string (file-name-base file) ",")))
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(defmacro eshell-partial-let-func (overrides &rest body)
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"Temporarily bind to FUNCTION-NAMEs and evaluate BODY.
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This is roughly analogous to advising functions, but only does so
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while BODY is executing, and only calls NEW-FUNCTION if its first
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argument is a string beginning with \"/fake/\".
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This allows selectively overriding functions to test file
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properties with fake files without altering the functions'
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behavior for real files.
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\(fn ((FUNCTION-NAME NEW-FUNCTION) ...) BODY...)"
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(declare (indent 1))
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`(cl-letf
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,(mapcar
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(lambda (override)
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`((symbol-function #',(car override))
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(let ((orig-function (symbol-function #',(car override))))
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(lambda (file &rest rest)
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(apply
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(if (and (stringp file) (string-prefix-p "/fake/" file))
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,(cadr override)
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orig-function)
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file rest)))))
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overrides)
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,@body))
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(defmacro eshell-with-file-attributes-from-name (&rest body)
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"Temporarily override file attribute functions and evaluate BODY."
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(declare (indent 0))
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`(eshell-partial-let-func
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((file-attributes
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(lambda (file &optional _id-format)
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(let ((attrs (eshell-parse-file-name-attributes file)))
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(list (equal (alist-get 'type attrs) "d")
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(or (alist-get 'links attrs) 1)
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(or (alist-get 'uid attrs) 0)
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(or (alist-get 'gid attrs) 0)
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(or (alist-get 'atime attrs) nil)
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(or (alist-get 'mtime attrs) nil)
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(or (alist-get 'ctime attrs) nil)
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(or (alist-get 'size attrs) 0)
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(format "%s---------" (or (alist-get 'type attrs) "-"))
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nil 0 0))))
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(file-modes
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(lambda (file _nofollow)
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(let ((attrs (eshell-parse-file-name-attributes file)))
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(or (alist-get 'modes attrs) 0))))
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(file-exists-p #'always)
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(file-regular-p
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(lambda (file)
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(let ((attrs (eshell-parse-file-name-attributes file)))
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(member (or (alist-get 'type attrs) "-") '("-" "l")))))
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(file-symlink-p
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(lambda (file)
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(let ((attrs (eshell-parse-file-name-attributes file)))
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(equal (alist-get 'type attrs) "l"))))
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(file-executable-p
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(lambda (file)
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(let ((attrs (eshell-parse-file-name-attributes file)))
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;; For simplicity, just return whether the file is
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;; world-executable.
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(= (logand (or (alist-get 'modes attrs) 0) 1) 1)))))
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,@body))
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;;; Tests:
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;; Argument predicates
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(ert-deftest em-pred-test/predicate-file-types ()
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"Test file type predicates."
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(eshell-with-file-attributes-from-name
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(let ((files (mapcar (lambda (i) (format "/fake/type=%s" i))
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'("b" "c" "d/" "p" "s" "l" "-"))))
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(should (equal (eshell-eval-predicate files "%")
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'("/fake/type=b" "/fake/type=c")))
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(should (equal (eshell-eval-predicate files "%b") '("/fake/type=b")))
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(should (equal (eshell-eval-predicate files "%c") '("/fake/type=c")))
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(should (equal (eshell-eval-predicate files "/") '("/fake/type=d/")))
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(should (equal (eshell-eval-predicate files ".") '("/fake/type=-")))
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(should (equal (eshell-eval-predicate files "p") '("/fake/type=p")))
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(should (equal (eshell-eval-predicate files "=") '("/fake/type=s")))
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(should (equal (eshell-eval-predicate files "@") '("/fake/type=l"))))))
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(ert-deftest em-pred-test/predicate-executable ()
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"Test that \"*\" matches only regular, non-symlink executable files."
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(eshell-with-file-attributes-from-name
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(let ((files '("/fake/modes=0777" "/fake/modes=0666"
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"/fake/type=d,modes=0777" "/fake/type=l,modes=0777")))
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(should (equal (eshell-eval-predicate files "*")
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'("/fake/modes=0777"))))))
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(defmacro em-pred-test--file-modes-deftest (name mode-template predicates
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&optional docstring)
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"Define NAME as a file-mode test.
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MODE-TEMPLATE is a format string to convert an integer from 0 to
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7 to an octal file mode. PREDICATES is a list of strings for the
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read, write, and execute predicates to query the file's modes."
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(declare (indent 4) (doc-string 4))
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`(ert-deftest ,name ()
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,docstring
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(eshell-with-file-attributes-from-name
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(let ((file-template (concat "/fake/modes=" ,mode-template)))
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(cl-flet ((make-files (perms)
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(mapcar (lambda (i) (format file-template i))
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perms)))
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(pcase-let ((files (make-files (number-sequence 0 7)))
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(`(,read ,write ,exec) ,predicates))
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(should (equal (eshell-eval-predicate files read)
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(make-files '(4 5 6 7))))
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(should (equal (eshell-eval-predicate files (concat "^" read))
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(make-files '(0 1 2 3))))
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(should (equal (eshell-eval-predicate files write)
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(make-files '(2 3 6 7))))
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(should (equal (eshell-eval-predicate files (concat "^" write))
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(make-files '(0 1 4 5))))
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(should (equal (eshell-eval-predicate files exec)
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(make-files '(1 3 5 7))))
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(should (equal (eshell-eval-predicate files (concat "^" exec))
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(make-files '(0 2 4 6))))))))))
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(em-pred-test--file-modes-deftest em-pred-test/predicate-file-modes-owner
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"0%o00" '("r" "w" "x")
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"Test predicates for file permissions for the owner.")
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(em-pred-test--file-modes-deftest em-pred-test/predicate-file-modes-group
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"00%o0" '("A" "I" "E")
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"Test predicates for file permissions for the group.")
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(em-pred-test--file-modes-deftest em-pred-test/predicate-file-modes-world
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"000%o" '("R" "W" "X")
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"Test predicates for file permissions for the world.")
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(em-pred-test--file-modes-deftest em-pred-test/predicate-file-modes-flags
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"%o000" '("s" "S" "t")
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"Test predicates for \"s\" (setuid), \"S\" (setgid), and \"t\" (sticky).")
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(ert-deftest em-pred-test/predicate-effective-uid ()
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"Test that \"U\" matches files owned by the effective UID."
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(eshell-with-file-attributes-from-name
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(cl-letf (((symbol-function 'user-uid) (lambda () 1)))
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(let ((files '("/fake/uid=1" "/fake/uid=2")))
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(should (equal (eshell-eval-predicate files "U")
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'("/fake/uid=1")))))))
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(ert-deftest em-pred-test/predicate-effective-gid ()
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"Test that \"G\" matches files owned by the effective GID."
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(eshell-with-file-attributes-from-name
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(cl-letf (((symbol-function 'group-gid) (lambda () 1)))
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(let ((files '("/fake/gid=1" "/fake/gid=2")))
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(should (equal (eshell-eval-predicate files "G")
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'("/fake/gid=1")))))))
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(ert-deftest em-pred-test/predicate-links ()
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"Test that \"l\" filters by number of links."
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(eshell-with-file-attributes-from-name
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(let ((files '("/fake/links=1" "/fake/links=2" "/fake/links=3")))
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(should (equal (eshell-eval-predicate files "l1")
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'("/fake/links=1")))
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(should (equal (eshell-eval-predicate files "l+1")
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'("/fake/links=2" "/fake/links=3")))
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(should (equal (eshell-eval-predicate files "l-3")
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'("/fake/links=1" "/fake/links=2"))))))
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(ert-deftest em-pred-test/predicate-uid ()
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"Test that \"u\" filters by UID/user name."
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(eshell-with-file-attributes-from-name
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(let ((files '("/fake/uid=1" "/fake/uid=2"))
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(user-names '("root" "one" "two")))
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(should (equal (eshell-eval-predicate files "u1")
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'("/fake/uid=1")))
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(cl-letf (((symbol-function 'eshell-user-id)
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(lambda (name) (seq-position user-names name))))
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(should (equal (eshell-eval-predicate files "u'one'")
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'("/fake/uid=1")))))))
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(ert-deftest em-pred-test/predicate-gid ()
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"Test that \"g\" filters by GID/group name."
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(eshell-with-file-attributes-from-name
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(let ((files '("/fake/gid=1" "/fake/gid=2"))
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(group-names '("root" "one" "two")))
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(should (equal (eshell-eval-predicate files "g1")
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'("/fake/gid=1")))
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(cl-letf (((symbol-function 'eshell-group-id)
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(lambda (name) (seq-position group-names name))))
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(should (equal (eshell-eval-predicate files "g'one'")
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'("/fake/gid=1")))))))
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(defmacro em-pred-test--time-deftest (name file-attribute predicate
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&optional docstring)
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"Define NAME as a file-time test.
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FILE-ATTRIBUTE is the file's attribute to set (e.g. \"atime\").
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PREDICATE is the predicate used to query that attribute."
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(declare (indent 4) (doc-string 4))
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`(ert-deftest ,name ()
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,docstring
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(eshell-with-file-attributes-from-name
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(cl-flet ((make-file (time)
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(format "/fake/%s=%d" ,file-attribute time)))
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(let* ((now (time-convert nil 'integer))
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(yesterday (- now 86400))
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(files (mapcar #'make-file (list now yesterday))))
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;; Test comparison against a number of days.
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(should (equal (eshell-eval-predicate
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files (concat ,predicate "-1"))
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(mapcar #'make-file (list now))))
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(should (equal (eshell-eval-predicate
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files (concat ,predicate "+1"))
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(mapcar #'make-file (list yesterday))))
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(should (equal (eshell-eval-predicate
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files (concat ,predicate "+2"))
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nil))
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;; Test comparison against a number of hours.
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(should (equal (eshell-eval-predicate
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files (concat ,predicate "h-1"))
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(mapcar #'make-file (list now))))
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(should (equal (eshell-eval-predicate
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files (concat ,predicate "h+1"))
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(mapcar #'make-file (list yesterday))))
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(should (equal (eshell-eval-predicate
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files (concat ,predicate "+48"))
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nil))
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;; Test comparison against another file.
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(should (equal (eshell-eval-predicate
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files (format "%s-'%s'" ,predicate (make-file now)))
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nil))
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(should (equal (eshell-eval-predicate
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files (format "%s+'%s'" ,predicate (make-file now)))
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(mapcar #'make-file (list yesterday)))))))))
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(em-pred-test--time-deftest em-pred-test/predicate-access-time
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"atime" "a"
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"Test that \"a\" filters by access time.")
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(em-pred-test--time-deftest em-pred-test/predicate-modification-time
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"mtime" "m"
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"Test that \"m\" filters by change time.")
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(em-pred-test--time-deftest em-pred-test/predicate-change-time
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"ctime" "c"
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"Test that \"c\" filters by change time.")
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(ert-deftest em-pred-test/predicate-size ()
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"Test that \"L\" filters by file size."
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(eshell-with-file-attributes-from-name
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(let ((files '("/fake/size=0"
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;; 1 and 2 KiB.
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"/fake/size=1024" "/fake/size=2048"
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;; 1 and 2 MiB.
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"/fake/size=1048576" "/fake/size=2097152")))
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;; Size in bytes.
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(should (equal (eshell-eval-predicate files "L2048")
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'("/fake/size=2048")))
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(should (equal (eshell-eval-predicate files "L+2048")
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'("/fake/size=1048576" "/fake/size=2097152")))
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(should (equal (eshell-eval-predicate files "L-2048")
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'("/fake/size=0" "/fake/size=1024")))
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;; Size in blocks.
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(should (equal (eshell-eval-predicate files "Lp4")
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'("/fake/size=2048")))
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(should (equal (eshell-eval-predicate files "Lp+4")
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'("/fake/size=1048576" "/fake/size=2097152")))
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(should (equal (eshell-eval-predicate files "Lp-4")
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'("/fake/size=0" "/fake/size=1024")))
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;; Size in KiB.
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(should (equal (eshell-eval-predicate files "Lk2")
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'("/fake/size=2048")))
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(should (equal (eshell-eval-predicate files "Lk+2")
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'("/fake/size=1048576" "/fake/size=2097152")))
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(should (equal (eshell-eval-predicate files "Lk-2")
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'("/fake/size=0" "/fake/size=1024")))
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;; Size in MiB.
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(should (equal (eshell-eval-predicate files "LM1")
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'("/fake/size=1048576")))
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(should (equal (eshell-eval-predicate files "LM+1")
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'("/fake/size=2097152")))
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(should (equal (eshell-eval-predicate files "LM-1")
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'("/fake/size=0" "/fake/size=1024" "/fake/size=2048"))))))
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;; Argument modifiers
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(ert-deftest em-pred-test/modifier-eval ()
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"Test that \":E\" re-evaluates the value."
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(should (equal (eshell-eval-predicate "${echo hi}" ":E") "hi"))
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(should (equal (eshell-eval-predicate
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'("${echo hi}" "$(upcase \"bye\")") ":E")
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'("hi" "BYE"))))
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(ert-deftest em-pred-test/modifier-downcase ()
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"Test that \":L\" downcases values."
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(should (equal (eshell-eval-predicate "FOO" ":L") "foo"))
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(should (equal (eshell-eval-predicate '("FOO" "BAR") ":L")
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'("foo" "bar"))))
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(ert-deftest em-pred-test/modifier-upcase ()
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"Test that \":U\" upcases values."
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(should (equal (eshell-eval-predicate "foo" ":U") "FOO"))
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(should (equal (eshell-eval-predicate '("foo" "bar") ":U")
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'("FOO" "BAR"))))
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(ert-deftest em-pred-test/modifier-capitalize ()
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"Test that \":C\" capitalizes values."
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(should (equal (eshell-eval-predicate "foo bar" ":C") "Foo Bar"))
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(should (equal (eshell-eval-predicate '("foo bar" "baz") ":C")
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'("Foo Bar" "Baz"))))
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(ert-deftest em-pred-test/modifier-dirname ()
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"Test that \":h\" returns the dirname."
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(should (equal (eshell-eval-predicate "/path/to/file.el" ":h") "/path/to/"))
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(should (equal (eshell-eval-predicate
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'("/path/to/file.el" "/other/path/") ":h")
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'("/path/to/" "/other/path/"))))
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(ert-deftest em-pred-test/modifier-basename ()
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"Test that \":t\" returns the basename."
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(should (equal (eshell-eval-predicate "/path/to/file.el" ":t") "file.el"))
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(should (equal (eshell-eval-predicate
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'("/path/to/file.el" "/other/path/") ":t")
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'("file.el" ""))))
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(ert-deftest em-pred-test/modifier-extension ()
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"Test that \":e\" returns the extension."
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(should (equal (eshell-eval-predicate "/path/to/file.el" ":e") "el"))
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(should (equal (eshell-eval-predicate
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'("/path/to/file.el" "/other/path/") ":e")
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'("el" nil))))
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(ert-deftest em-pred-test/modifier-sans-extension ()
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"Test that \":r\" returns the file name san extension."
|
||
(should (equal (eshell-eval-predicate "/path/to/file.el" ":r")
|
||
"/path/to/file"))
|
||
(should (equal (eshell-eval-predicate
|
||
'("/path/to/file.el" "/other/path/") ":r")
|
||
'("/path/to/file" "/other/path/"))))
|
||
|
||
(ert-deftest em-pred-test/modifier-quote ()
|
||
"Test that \":q\" quotes arguments."
|
||
(should (equal-including-properties
|
||
(eshell-eval-predicate '("foo" "bar") ":q")
|
||
(list (eshell-escape-arg "foo") (eshell-escape-arg "bar")))))
|
||
|
||
(ert-deftest em-pred-test/modifier-substitute ()
|
||
"Test that \":s/PAT/REP/\" replaces PAT with REP once."
|
||
(should (equal (eshell-eval-predicate "bar" ":s/a/*/") "b*r"))
|
||
(should (equal (eshell-eval-predicate "bar" ":s|a|*|") "b*r"))
|
||
(should (equal (eshell-eval-predicate "bar" ":s{a}{*}") "b*r"))
|
||
(should (equal (eshell-eval-predicate "bar" ":s{a}'*'") "b*r"))
|
||
(should (equal (eshell-eval-predicate '("foo" "bar" "baz") ":s/[ao]/*/")
|
||
'("f*o" "b*r" "b*z")))
|
||
(should (equal (eshell-eval-predicate '("foo" "bar" "baz") ":s|[ao]|*|")
|
||
'("f*o" "b*r" "b*z"))))
|
||
|
||
(ert-deftest em-pred-test/modifier-global-substitute ()
|
||
"Test that \":s/PAT/REP/\" replaces PAT with REP for all occurrences."
|
||
(should (equal (eshell-eval-predicate "foo" ":gs/a/*/") "foo"))
|
||
(should (equal (eshell-eval-predicate "foo" ":gs|a|*|") "foo"))
|
||
(should (equal (eshell-eval-predicate "bar" ":gs/a/*/") "b*r"))
|
||
(should (equal (eshell-eval-predicate "bar" ":gs|a|*|") "b*r"))
|
||
(should (equal (eshell-eval-predicate "foo" ":gs/o/O/") "fOO"))
|
||
(should (equal (eshell-eval-predicate '("foo" "bar" "baz") ":gs/[aeiou]/*/")
|
||
'("f**" "b*r" "b*z")))
|
||
(should (equal (eshell-eval-predicate '("foo" "bar" "baz") ":gs|[aeiou]|*|")
|
||
'("f**" "b*r" "b*z"))))
|
||
|
||
(ert-deftest em-pred-test/modifier-include ()
|
||
"Test that \":i/PAT/\" filters elements to include only ones matching PAT."
|
||
(should (equal (eshell-eval-predicate "foo" ":i/a/") nil))
|
||
(should (equal (eshell-eval-predicate "bar" ":i/a/") "bar"))
|
||
(should (equal (eshell-eval-predicate '("foo" "bar" "baz") ":i/a/")
|
||
'("bar" "baz"))))
|
||
|
||
(ert-deftest em-pred-test/modifier-exclude ()
|
||
"Test that \":x/PAT/\" filters elements to exclude any matching PAT."
|
||
(should (equal (eshell-eval-predicate "foo" ":x/a/") "foo"))
|
||
(should (equal (eshell-eval-predicate "bar" ":x/a/") nil))
|
||
(should (equal (eshell-eval-predicate '("foo" "bar" "baz") ":x/a/")
|
||
'("foo"))))
|
||
|
||
(ert-deftest em-pred-test/modifier-split ()
|
||
"Test that \":S\" and \":S/PAT/\" split elements by spaces (or PAT)."
|
||
(should (equal (eshell-eval-predicate "foo bar baz" ":S")
|
||
'("foo" "bar" "baz")))
|
||
(should (equal (eshell-eval-predicate '("foo bar" "baz") ":S")
|
||
'(("foo" "bar") ("baz"))))
|
||
(should (equal (eshell-eval-predicate "foo-bar-baz" ":S/-/")
|
||
'("foo" "bar" "baz")))
|
||
(should (equal (eshell-eval-predicate '("foo-bar" "baz") ":S/-/")
|
||
'(("foo" "bar") ("baz")))))
|
||
|
||
(ert-deftest em-pred-test/modifier-join ()
|
||
"Test that \":j\" and \":j/DELIM/\" join elements by spaces (or DELIM)."
|
||
(should (equal (eshell-eval-predicate "foo" ":j") "foo"))
|
||
(should (equal (eshell-eval-predicate '("foo" "bar" "baz") ":j")
|
||
"foo bar baz"))
|
||
(should (equal (eshell-eval-predicate "foo" ":j/-/") "foo"))
|
||
(should (equal (eshell-eval-predicate '("foo" "bar" "baz") ":j/-/")
|
||
"foo-bar-baz")))
|
||
|
||
(ert-deftest em-pred-test/modifier-sort ()
|
||
"Test that \":o\" sorts elements in lexicographic order."
|
||
(should (equal (eshell-eval-predicate "foo" ":o") "foo"))
|
||
(should (equal (eshell-eval-predicate '("foo" "bar" "baz") ":o")
|
||
'("bar" "baz" "foo"))))
|
||
|
||
(ert-deftest em-pred-test/modifier-sort-reverse ()
|
||
"Test that \":o\" sorts elements in reverse lexicographic order."
|
||
(should (equal (eshell-eval-predicate "foo" ":O") "foo"))
|
||
(should (equal (eshell-eval-predicate '("foo" "bar" "baz") ":O")
|
||
'("foo" "baz" "bar"))))
|
||
|
||
(ert-deftest em-pred-test/modifier-unique ()
|
||
"Test that \":u\" filters out duplicate elements."
|
||
(should (equal (eshell-eval-predicate "foo" ":u") "foo"))
|
||
(should (equal (eshell-eval-predicate '("foo" "bar" "baz") ":u")
|
||
'("foo" "bar" "baz")))
|
||
(should (equal (eshell-eval-predicate '("foo" "bar" "baz" "foo") ":u")
|
||
'("foo" "bar" "baz"))))
|
||
|
||
(ert-deftest em-pred-test/modifier-reverse ()
|
||
"Test that \":r\" reverses the order of elements."
|
||
(should (equal (eshell-eval-predicate "foo" ":R") "foo"))
|
||
(should (equal (eshell-eval-predicate '("foo" "bar" "baz") ":R")
|
||
'("baz" "bar" "foo"))))
|
||
|
||
|
||
;; Miscellaneous
|
||
|
||
(ert-deftest em-pred-test/combine-predicate-and-modifier ()
|
||
"Test combination of predicates and modifiers."
|
||
(eshell-with-file-attributes-from-name
|
||
(let ((files '("/fake/type=-.el" "/fake/type=-.txt" "/fake/type=s.el"
|
||
"/fake/subdir/type=-.el")))
|
||
(should (equal (eshell-eval-predicate files ".:e:u")
|
||
'("el" "txt"))))))
|
||
|
||
(ert-deftest em-pred-test/predicate-delimiters ()
|
||
"Test various delimiter pairs with predicates and modifiers."
|
||
(dolist (delims eshell-pred-delimiter-pairs)
|
||
(eshell-with-file-attributes-from-name
|
||
(let ((files '("/fake/uid=1" "/fake/uid=2"))
|
||
(user-names '("root" "one" "two")))
|
||
(cl-letf (((symbol-function 'eshell-user-id)
|
||
(lambda (name) (seq-position user-names name))))
|
||
(should (equal (eshell-eval-predicate
|
||
files (format "u%cone%c" (car delims) (cdr delims)))
|
||
'("/fake/uid=1"))))))
|
||
(should (equal (eshell-eval-predicate
|
||
'("foo" "bar" "baz")
|
||
(format ":j%c-%c" (car delims) (cdr delims)))
|
||
"foo-bar-baz"))))
|
||
|
||
(ert-deftest em-pred-test/predicate-escaping ()
|
||
"Test string escaping in predicate and modifier parameters."
|
||
;; Escaping the delimiter should remove the backslash.
|
||
(should (equal (eshell-eval-predicate '("foo" "bar" "baz") ":j'\\''")
|
||
"foo'bar'baz"))
|
||
;; Escaping a backlash should remove the first backslash.
|
||
(should (equal (eshell-eval-predicate '("foo" "bar" "baz") ":j'\\\\'")
|
||
"foo\\bar\\baz"))
|
||
;; Escaping a different character should keep the backslash.
|
||
(should (equal (eshell-eval-predicate '("foo" "bar" "baz") ":j'\\\"'")
|
||
"foo\\\"bar\\\"baz")))
|
||
|
||
(ert-deftest em-pred-test/no-matches ()
|
||
"Test behavior when a predicate fails to match any files."
|
||
(eshell-with-file-attributes-from-name
|
||
(let ((files '("/fake/modes=0666" "/fake/type=d,modes=0777"
|
||
"/fake/type=l,modes=0777")))
|
||
(should (equal (eshell-eval-predicate files "*") nil))
|
||
(let ((eshell-error-if-no-glob t))
|
||
;; Don't signal an error if the original list is empty.
|
||
(should (equal (eshell-eval-predicate nil "*") nil))
|
||
;; Ensure this signals an error. This test case is a bit
|
||
;; clumsy, since `eshell-do-eval' makes it hard to catch
|
||
;; errors otherwise.
|
||
(let ((modifiers (with-temp-eshell
|
||
(eshell-with-temp-command "*"
|
||
(eshell-parse-modifiers)))))
|
||
(should-error (eshell-apply-modifiers files (car modifiers)
|
||
(cdr modifiers) "*")))))))
|
||
|
||
;; em-pred-tests.el ends here
|