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ivy-test.el
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;;; ivy-test.el --- tests for ivy
;; Copyright (C) 2015-2017 Free Software Foundation, Inc.
;; Author: Oleh Krehel
;; This file is part of GNU Emacs.
;; This file 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, or (at your option)
;; any later version.
;; This program 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.
;; For a full copy of the GNU General Public License
;; see <http://www.gnu.org/licenses/>.
;;; Commentary:
;;
;; This packages provides the tests for `ert'. They can be executed
;; from the command line as well by calling "make test".
;;; Code:
(require 'ert)
(require 'colir)
;; useful for #'ivy-read-remap. It must arrive before (require 'ivy)
(define-key global-map (kbd "<S-right>") #'end-of-buffer)
(require 'ivy)
(require 'counsel)
(defvar ivy-expr nil
"Holds a test expression to evaluate with `ivy-eval'.")
(defvar ivy-result nil
"Holds the eval result of `ivy-expr' by `ivy-eval'.")
(defun ivy-eval ()
"Evaluate `ivy-expr'."
(interactive)
(setq ivy-result (eval ivy-expr)))
(global-set-key (kbd "C-c e") 'ivy-eval)
(defun ivy-with (expr keys)
"Evaluate EXPR followed by KEYS."
(let ((ivy-expr expr))
(execute-kbd-macro
(vconcat (kbd "C-c e")
(kbd keys)))
ivy-result))
(defun command-execute-setting-this-command (cmd &rest args)
"Like `command-execute' but sets `this-command' first."
(setq this-command cmd)
(apply #'command-execute cmd args))
(defadvice symbol-function (around no-void-function activate)
"Suppress void-function errors.
This advice makes `symbol-function' return nil when called on a
symbol with no function rather than throwing a void-fucntion
error. On Emacs 24.4 and above, this has no effect, because
`symbol-function' already does this, but on 24.3 and earlier, it
will bring the behavior in line with the newer Emacsen."
(condition-case nil
ad-do-it
(void-function nil)))
(ert-deftest ivy-partial ()
(should (equal
(ivy-with '(ivy-read "test: " '("case" "Case"))
"ca TAB C-m")
"case"))
(should (equal
(ivy-with '(ivy-read "test: " '("case" "Case"))
"Ca TAB C-m")
"Case")))
(ert-deftest ivy-read ()
(should (equal
(ivy-with '(ivy-read "pattern: " '("blue" "yellow"))
"C-m")
"blue"))
(should (equal
(ivy-with '(ivy-read "pattern: " '("blue" "yellow"))
"y C-m")
"yellow"))
(should (equal
(ivy-with '(ivy-read "pattern: " '("blue" "yellow"))
"y DEL b C-m")
"blue"))
(should (equal
(ivy-with '(ivy-read "pattern: " '("blue" "yellow"))
"z C-m")
"z"))
(should (equal
(ivy-with '(ivy-read "pattern: " '("blue" "yellow"))
"y <backspace> C-m")
"blue"))
(should (equal
(ivy-with '(let ((ivy-re-builders-alist '((t . ivy--regex-fuzzy))))
(ivy-read "pattern: " '("package-list-packages" "something-else")))
"plp C-m")
"package-list-packages"))
(should (equal
(ivy-with '(ivy-read "test" '("aaab" "aaac"))
"a C-n <tab> C-m")
"aaac"))
(should (equal
(ivy-with '(ivy-read "test" '(("foo" . "bar")))
"asdf C-m")
"asdf"))
(should (equal
(ivy-with
'(with-output-to-string
(ivy-read "test" '(("foo" . "bar"))
:action (lambda (x) (prin1 x))))
"f C-m")
"(#(\"foo\" 0 1 (idx 0)) . \"bar\")"))
(should (equal
(ivy-with
'(with-output-to-string
(ivy-read "test" '(("foo" . "bar"))
:action (lambda (x) (prin1 x))))
"asdf C-m")
"\"asdf\""))
(should (equal
(ivy-with '(ivy-read "pattern: " '("can do" "can" "can't do"))
"can C-m")
"can")))
(ert-deftest ivy-read-remap ()
(should (equal
(ivy-with '(ivy-read "pattern: " '("blue" "yellow" "red"))
"<S-right> C-m")
"red")))
(ert-deftest swiper--re-builder ()
(setq swiper--width 4)
(should (string= (swiper--re-builder "^")
"."))
(should (string= (swiper--re-builder "^a")
"^ ?\\(a\\)"))
(should (string= (swiper--re-builder "^a b")
"^ \\(a\\).*?\\(b\\)")))
(ert-deftest ivy--split ()
(should (equal (ivy--split "King of the who?")
'("King" "of" "the" "who?")))
(should (equal (ivy--split "The Brittons.")
'("The Brittons.")))
(should (equal (ivy--split "Who are the Brittons?")
'("Who are" "the Brittons?")))
(should (equal (ivy--split "We're all Britons and I am your king.")
'("We're all Britons"
"and I am"
"your king.")))
(should (equal (ivy--split "^[^ ]") '("^[^ ]")))
(should (equal (ivy--split "^[^ ] bar") '("^[^ ]" "bar"))))
(ert-deftest ivy--regex ()
(should (equal (ivy--regex
"\\(?:interactive\\|swiper\\) \\(?:list\\|symbol\\)")
"\\(\\(?:interactive\\|swiper\\)\\).*?\\(\\(?:list\\|symbol\\)\\)")))
(ert-deftest ivy--regex-fuzzy ()
(should (string= (ivy--regex-fuzzy "tmux")
"\\(t\\).*?\\(m\\).*?\\(u\\).*?\\(x\\)"))
(should (string= (ivy--regex-fuzzy "^tmux")
"^\\(t\\).*?\\(m\\).*?\\(u\\).*?\\(x\\)"))
(should (string= (ivy--regex-fuzzy "^tmux$")
"^\\(t\\).*?\\(m\\).*?\\(u\\).*?\\(x\\)$"))
(should (string= (ivy--regex-fuzzy "")
""))
(should (string= (ivy--regex-fuzzy "^")
"^"))
(should (string= (ivy--regex-fuzzy "$")
"$")))
(ert-deftest ivy--regex-ignore-order ()
(should (equal (ivy--regex-ignore-order "tmux")
'(("tmux" . t))))
(should (equal (ivy--regex-ignore-order "^tmux")
'(("^tmux" . t))))
(should (equal (ivy--regex-ignore-order "^tmux$")
'(("^tmux$" . t))))
(should (equal (ivy--regex-ignore-order "")
""))
(should (equal (ivy--regex-ignore-order "^")
'(("^" . t))))
(should (equal (ivy--regex-ignore-order "$")
'(("$" . t))))
(should (equal (ivy--regex-ignore-order "one two")
'(("one" . t) ("two" . t))))
(should (equal (ivy--regex-ignore-order "one two !three")
'(("one" . t) ("two" . t) ("three"))))
(should (equal (ivy--regex-ignore-order "one two !three four")
'(("one" . t) ("two" . t) ("three") ("four"))))
(should (equal (ivy--regex-ignore-order "!three four")
'(("" . t) (("three") ("four")))))
(should (equal (ivy--regex-ignore-order "foo[ bar[xy]")
'(("foo\\[" . t) ("bar[xy]" . t)))))
(ert-deftest ivy--format ()
(should (string= (let ((ivy--index 10)
(ivy-format-function (lambda (x) (mapconcat #'identity x "\n")))
(cands '("NAME"
"SYNOPSIS"
"DESCRIPTION"
"FUNCTION LETTERS"
"SWITCHES"
"DIAGNOSTICS"
"EXAMPLE 1"
"EXAMPLE 2"
"EXAMPLE 3"
"SEE ALSO"
"AUTHOR")))
(ivy--format cands))
#("\nDESCRIPTION\nFUNCTION LETTERS\nSWITCHES\nDIAGNOSTICS\nEXAMPLE 1\nEXAMPLE 2\nEXAMPLE 3\nSEE ALSO\nAUTHOR"
0 90 (read-only nil)
90 96 (face ivy-current-match read-only nil)))))
(ert-deftest ivy--filter ()
(setq ivy-last (make-ivy-state))
(should (equal (ivy--filter "the" '("foo" "the" "The"))
'("the" "The")))
(should (equal (ivy--filter "The" '("foo" "the" "The"))
'("The"))))
(ert-deftest counsel-unquote-regex-parens ()
(should (equal (counsel-unquote-regex-parens
(ivy--regex "foo bar"))
"(foo).*?(bar)"))
(should (equal (counsel-unquote-regex-parens
(ivy--regex "(foo bar"))
"(\\(foo).*?(bar)")))
(ert-deftest colir-color-parse ()
(should (equal (colir-color-parse "#ab1234")
;; (color-name-to-rgb "#ab1234")
'(0.6705882352941176
0.07058823529411765
0.20392156862745098))))
;;* prefix arg tests
;;** tests with no prefix
(ert-deftest ivy-no-prefix-arg ()
"Tests with no prefix arg."
(should (equal
(ivy-with
'(let (res)
(ivy-read "pattern: " '("blue" "yellow")
:action (lambda (x)
(setq res ivy-current-prefix-arg)))
res)
"C-m")
nil))
(should (equal
(ivy-with
'(let (res)
(ivy-read "pattern: " '("blue" "yellow")
:action (lambda (x)
(setq res ivy-current-prefix-arg)))
res)
"C-j")
nil))
(should (equal
(ivy-with
'(let (res)
(ivy-read "pattern: " '("blue" "yellow")
:action (lambda (x)
(setq res ivy-current-prefix-arg)))
res)
"C-M-j")
nil))
(should (equal
(ivy-with
'(let (res)
(ivy-read "pattern: " '("blue" "yellow")
:action (lambda (x)
(setq res ivy-current-prefix-arg)))
res)
"C-M-m")
nil))
(should (equal
(ivy-with
'(let (res)
(ivy-read "pattern: " '("blue" "yellow")
:action (lambda (x)
(setq res ivy-current-prefix-arg)))
res)
"C-M-n")
nil))
(should (equal
(ivy-with
'(let (res)
(ivy-read "pattern: " '("blue" "yellow")
:action (lambda (x)
(setq res ivy-current-prefix-arg)))
res)
"C-M-p")
nil))
(should (equal
(ivy-with
'(let (res)
(ivy-read "pattern: " '("blue" "yellow")
:action (lambda (x)
(setq res ivy-current-prefix-arg)))
res)
"M-o o")
nil))
(should (equal
(ivy-with
'(let (res)
(ivy-read "pattern: " '("blue" "yellow")
:action (lambda (x)
(setq res ivy-current-prefix-arg)))
res)
"TAB TAB")
nil)))
;;** tests with one prefix
(ert-deftest ivy-one-prefix-arg ()
"Tests with no prefix arg."
(should (equal
(ivy-with
'(let (res)
(ivy-read "pattern: " '("blue" "yellow")
:action (lambda (x)
(setq res ivy-current-prefix-arg)))
res)
"C-u C-m")
'(4)))
(should (equal
(ivy-with
'(let (res)
(ivy-read "pattern: " '("blue" "yellow")
:action (lambda (x)
(setq res ivy-current-prefix-arg)))
res)
"C-u C-j")
'(4)))
;; C-M-j does not pass a prefix on.
(should (equal
(ivy-with
'(let (res)
(ivy-read "pattern: " '("blue" "yellow")
:action (lambda (x)
(setq res ivy-current-prefix-arg)))
res)
"C-u C-M-j")
nil))
(should (equal
(ivy-with
'(let (res)
(ivy-read "pattern: " '("blue" "yellow")
:action (lambda (x)
(setq res ivy-current-prefix-arg)))
res)
"C-u C-M-m")
'(4)))
(should (equal
(ivy-with
'(let (res)
(ivy-read "pattern: " '("blue" "yellow")
:action (lambda (x)
(setq res ivy-current-prefix-arg)))
res)
"C-u C-M-n")
'(4)))
(should (equal
(ivy-with
'(let (res)
(ivy-read "pattern: " '("blue" "yellow")
:action (lambda (x)
(setq res ivy-current-prefix-arg)))
res)
"C-u C-M-p")
'(4)))
(should (equal
(ivy-with
'(let (res)
(ivy-read "pattern: " '("blue" "yellow")
:action (lambda (x)
(setq res ivy-current-prefix-arg)))
res)
"C-u M-o o")
'(4)))
(should (equal
(ivy-with
'(let (res)
(ivy-read "pattern: " '("blue" "yellow")
:action
'(1 ("o" (lambda (x)
(setq res ivy-current-prefix-arg)))
("p" (lambda (x)
(setq res ivy-current-prefix-arg)))))
res)
"C-u M-o p")
'(4)))
;; TAB TAB does not pass prefix arg
(should (equal
(ivy-with
'(let (res)
(ivy-read "pattern: " '("blue" "yellow")
:action (lambda (x)
(setq res ivy-current-prefix-arg)))
res)
"TAB TAB")
nil)))
(ert-deftest ivy-numeric-prefix-arg ()
(should (equal
(ivy-with
'(let (res)
(ivy-read "pattern: " '("blue" "yellow")
:action (lambda (x)
(setq res ivy-current-prefix-arg)))
res)
"M-1 M-2 M-3 C-m")
123))
(should (equal
(ivy-with
'(let (res)
(ivy-read "pattern: " '("blue" "yellow")
:action (lambda (x)
(setq res ivy-current-prefix-arg)))
res)
"C-u 123 C-m")
123)))
(ert-deftest ivy-re-match ()
(should (ivy-re-match '(("counsel" . t)) "(defun counsel"))
(should (ivy-re-match '(("defun" . t) ("counsel" . t)) "(defun counsel"))
(should (ivy-re-match '(("counsel" . t) ("defun" . t)) "(defun counsel"))
(should (not (ivy-re-match '(("counsel" . nil) ("defun" . t)) "(defun counsel")))
(should (not (ivy-re-match '(("defun" . t) ("counsel" . nil)) "(defun counsel"))))
(ert-deftest ivy-read-preselect ()
(should (equal
(ivy-with
'(ivy-read "test: "
(list "abc" "default" "def")
:preselect 1)
"RET")
"default"))
(should (equal
(ivy-with
'(ivy-read "test: "
(list "abc" "default" "def")
:preselect "defa")
"RET")
"default")))
(ert-deftest ivy-read-prompt ()
(let ((prompt "pattern: ")
(collection '("blue" "yellow")))
(should (equal
(ivy-with
'(let ((ivy-use-selectable-prompt nil))
(ivy-read prompt collection))
"bl C-m")
"blue"))
(should (equal
(ivy-with
'(let ((ivy-use-selectable-prompt nil))
(ivy-read prompt collection))
"bl C-p C-m")
"blue"))
(should (equal
(ivy-with
'(let ((ivy-use-selectable-prompt nil))
(ivy-read prompt collection))
"bl C-j")
"blue"))
(should (equal
(ivy-with
'(let ((ivy-use-selectable-prompt nil))
(ivy-read prompt collection))
"bl C-p C-j")
"blue"))
(should (equal
(ivy-with
'(let ((ivy-use-selectable-prompt nil))
(ivy-read prompt collection))
"bl C-M-j")
"bl"))
(should (equal
(ivy-with
'(let ((ivy-use-selectable-prompt nil))
(ivy-read prompt collection))
"bl C-p C-M-j")
"bl"))
(should (equal
(ivy-with
'(let ((ivy-use-selectable-prompt t))
(ivy-read prompt collection))
"bl C-m")
"blue"))
(should (equal
(ivy-with
'(let ((ivy-use-selectable-prompt t))
(ivy-read prompt collection))
"bl C-p C-m")
"bl"))
(should (equal
(ivy-with
'(let ((ivy-use-selectable-prompt t))
(ivy-read prompt collection))
"bl C-j")
"blue"))
(should (equal
(ivy-with
'(let ((ivy-use-selectable-prompt t))
(ivy-read prompt collection))
"bl C-p C-j")
"bl"))
(should (equal
(ivy-with
'(let ((ivy-use-selectable-prompt t))
(ivy-read prompt collection))
"bl C-M-j")
"bl"))
(should (equal
(ivy-with
'(let ((ivy-use-selectable-prompt t))
(ivy-read prompt collection))
"bl C-p C-M-j")
"bl"))))
(ert-deftest ivy-completing-read-def-handling ()
;; DEF in COLLECTION
(should
(equal "b"
(ivy-with '(ivy-completing-read "Pick: " '("a" "b" "c") nil t nil nil "b")
"RET")))
;; Also make sure that choosing a non-default item works
(should
(equal "c"
(ivy-with '(ivy-completing-read "Pick: " '("a" "b" "c") nil t nil nil "b")
"c RET")))
;; DEF not in COLLECTION
(should
(equal "d"
(ivy-with '(ivy-completing-read "Pick: " '("a" "b" "c") nil t nil nil "d")
"RET")))
(should
(equal "c"
(ivy-with '(ivy-completing-read "Pick: " '("a" "b" "c") nil t nil nil "d")
"c RET")))
;; DEF list, some in COLLECTION
(should
(equal "e"
(ivy-with '(ivy-completing-read "Pick: " '("a" "b" "c") nil t nil nil '("e" "b"))
"RET")))
(should
(equal "c"
(ivy-with '(ivy-completing-read "Pick: " '("a" "b" "c") nil t nil nil '("e" "b"))
"c RET")))
;; DEF nil
(should
(equal "a"
(ivy-with '(ivy-completing-read "Pick: " '("a" "b" "c") nil t nil nil nil)
"RET")))
(should
(equal "c"
(ivy-with '(ivy-completing-read "Pick: " '("a" "b" "c") nil t nil nil nil)
"c RET")))
;; DEF nil, and called via `ivy-completing-read-with-empty-string-def'
(should
(equal ""
(ivy-with '(ivy-completing-read-with-empty-string-def
"Pick: " '("a" "b" "c") nil t nil nil nil)
"RET")))
(should
(equal "c"
(ivy-with '(ivy-completing-read-with-empty-string-def
"Pick: " '("a" "b" "c") nil t nil nil nil)
"c RET"))))
(ert-deftest ivy-completing-read-handlers ()
(cl-letf* ((ivy-mode-reset-arg (if ivy-mode 1 0))
;; Let-bind this so changes are reset after test
(ivy-completing-read-handlers-alist
'((test-command-default-handler . completing-read-default)
(test-command-recursive-handler . ivy-completing-read-with-empty-string-def)))
;; Temporarily define several identical commands
((symbol-function 'test-command-no-handler)
(lambda (arg)
"Read and arg and return it"
(interactive
(list
(completing-read "Pick: " '("a" "b" "c") nil t nil nil nil)))
arg))
((symbol-function 'test-command-default-handler)
(symbol-function 'test-command-no-handler))
((symbol-function 'test-command-recursive-handler)
(symbol-function 'test-command-no-handler)))
(unwind-protect
(progn
;; Activate ivy-mode
(ivy-mode 1)
;; No handler
(should
(equal "a"
(ivy-with
'(command-execute-setting-this-command
'test-command-no-handler)
"RET")))
(should
(equal "c"
(ivy-with
'(command-execute-setting-this-command
'test-command-no-handler)
"c RET")))
;; Handler = `completing-read-default'; make sure ivy-read
;; is never called
(cl-letf (((symbol-function 'ivy-read)
(lambda (&rest args) (error "`ivy-read' should not be called"))))
(should
(equal ""
(ivy-with
'(command-execute-setting-this-command
'test-command-default-handler)
"RET")))
(should
(equal "c"
(ivy-with
'(command-execute-setting-this-command
'test-command-default-handler)
"c RET"))))
;; Handler = `ivy-completing-read-with-empty-string-def';
;; make sure infinite recursion does not occur
(should
(equal ""
(ivy-with
'(command-execute-setting-this-command
'test-command-recursive-handler)
"RET")))
(should
(equal "c"
(ivy-with
'(command-execute-setting-this-command
'test-command-recursive-handler)
"c RET"))))
(ivy-mode ivy-mode-reset-arg))))
(provide 'ivy-test)
;;; ivy-test.el ends here