-;;; company-tests.el --- company-mode tests
+;;; company-tests.el --- company-mode tests -*- lexical-binding: t -*-
-;; Copyright (C) 2011, 2013 Free Software Foundation, Inc.
+;; Copyright (C) 2011, 2013-2014 Free Software Foundation, Inc.
;; Author: Nikolaj Schumacher
(require 'ert)
(require 'company)
(require 'company-keywords)
+(require 'company-clang)
+
+;;; Core
(ert-deftest company-sorted-keywords ()
"Test that keywords in `company-keywords-alist' are in alphabetical order."
(ert-deftest company-good-prefix ()
(let ((company-minimum-prefix-length 5)
- company--explicit-action)
+ company-abort-manual-when-too-short
+ company--manual-action ;idle begin
+ (company-selection-changed t)) ;has no effect
(should (eq t (company--good-prefix-p "!@#$%")))
(should (eq nil (company--good-prefix-p "abcd")))
(should (eq nil (company--good-prefix-p 'stop)))
(should (eq t (company--good-prefix-p '("foo" . 5))))
- (should (eq nil (company--good-prefix-p '("foo" . 4))))))
+ (should (eq nil (company--good-prefix-p '("foo" . 4))))
+ (should (eq t (company--good-prefix-p '("foo" . t))))))
+
+(ert-deftest company--manual-prefix-set-and-unset ()
+ (with-temp-buffer
+ (insert "ab")
+ (company-mode)
+ (let (company-frontends
+ (company-backends
+ (list (lambda (command &optional arg)
+ (cl-case command
+ (prefix (buffer-substring (point-min) (point)))
+ (candidates '("abc" "abd")))))))
+ (company-manual-begin)
+ (should (equal "ab" company--manual-prefix))
+ (company-abort)
+ (should (null company--manual-prefix)))))
+
+(ert-deftest company-abort-manual-when-too-short ()
+ (let ((company-minimum-prefix-length 5)
+ (company-abort-manual-when-too-short t)
+ (company-selection-changed t)) ;has not effect
+ (let ((company--manual-action nil)) ;idle begin
+ (should (eq t (company--good-prefix-p "!@#$%")))
+ (should (eq t (company--good-prefix-p '("foo" . 5))))
+ (should (eq t (company--good-prefix-p '("foo" . t)))))
+ (let ((company--manual-action t)
+ (company--manual-prefix "abc")) ;manual begin from this prefix
+ (should (eq t (company--good-prefix-p "!@#$")))
+ (should (eq nil (company--good-prefix-p "ab")))
+ (should (eq nil (company--good-prefix-p 'stop)))
+ (should (eq t (company--good-prefix-p '("foo" . 4))))
+ (should (eq t (company--good-prefix-p "abcd")))
+ (should (eq t (company--good-prefix-p "abc")))
+ (should (eq t (company--good-prefix-p '("bar" . t)))))))
(ert-deftest company-multi-backend-with-lambdas ()
(let ((company-backend
(list (lambda (command &optional arg &rest ignore)
- (case command
+ (cl-case command
(prefix "z")
(candidates '("a" "b"))))
(lambda (command &optional arg &rest ignore)
- (case command
+ (cl-case command
(prefix "z")
(candidates '("c" "d")))))))
(should (equal (company-call-backend 'candidates "z") '("a" "b" "c" "d")))))
+(ert-deftest company-multi-backend-remembers-candidate-backend ()
+ (let ((company-backend
+ (list (lambda (command &optional arg)
+ (cl-case command
+ (ignore-case nil)
+ (annotation "1")
+ (candidates '("a" "c"))
+ (post-completion "13")))
+ (lambda (command &optional arg)
+ (cl-case command
+ (ignore-case t)
+ (annotation "2")
+ (candidates '("b" "d"))
+ (post-completion "42")))
+ (lambda (command &optional arg)
+ (cl-case command
+ (annotation "3")
+ (candidates '("e"))
+ (post-completion "74"))))))
+ (let ((candidates (company-calculate-candidates nil)))
+ (should (equal candidates '("a" "b" "c" "d" "e")))
+ (should (equal t (company-call-backend 'ignore-case)))
+ (should (equal "1" (company-call-backend 'annotation (nth 0 candidates))))
+ (should (equal "2" (company-call-backend 'annotation (nth 1 candidates))))
+ (should (equal "13" (company-call-backend 'post-completion (nth 2 candidates))))
+ (should (equal "42" (company-call-backend 'post-completion (nth 3 candidates))))
+ (should (equal "3" (company-call-backend 'annotation (nth 4 candidates))))
+ (should (equal "74" (company-call-backend 'post-completion (nth 4 candidates)))))))
+
+(ert-deftest company-multi-backend-handles-keyword-with ()
+ (let ((primo (lambda (command &optional arg)
+ (cl-case command
+ (prefix "a")
+ (candidates '("abb" "abc" "abd")))))
+ (secundo (lambda (command &optional arg)
+ (cl-case command
+ (prefix "a")
+ (candidates '("acc" "acd"))))))
+ (let ((company-backend (list 'ignore 'ignore :with secundo)))
+ (should (null (company-call-backend 'prefix))))
+ (let ((company-backend (list 'ignore primo :with secundo)))
+ (should (equal "a" (company-call-backend 'prefix)))
+ (should (equal '("abb" "abc" "abd" "acc" "acd")
+ (company-call-backend 'candidates "a"))))))
+
(ert-deftest company-begin-backend-failure-doesnt-break-company-backends ()
(with-temp-buffer
(insert "a")
(company-mode)
(should-error
(company-begin-backend (lambda (command &rest ignore))))
- (let ((company-backends
+ (let (company-frontends
+ (company-backends
(list (lambda (command &optional arg)
- (case command
+ (cl-case command
(prefix "a")
(candidates '("a" "ab" "ac")))))))
- (company-complete)
- (setq this-command 'company-complete)
+ (let (this-command)
+ (company-call 'complete))
(should (eq 3 company-candidates-length)))))
+
+(ert-deftest company-require-match-explicit ()
+ (with-temp-buffer
+ (insert "ab")
+ (company-mode)
+ (let (company-frontends
+ (company-require-match 'company-explicit-action-p)
+ (company-backends
+ (list (lambda (command &optional arg)
+ (cl-case command
+ (prefix (buffer-substring (point-min) (point)))
+ (candidates '("abc" "abd")))))))
+ (let (this-command)
+ (company-complete))
+ (let ((last-command-event ?e))
+ (company-call 'self-insert-command 1))
+ (should (eq 2 company-candidates-length))
+ (should (eq 3 (point))))))
+
+(ert-deftest company-dont-require-match-when-idle ()
+ (with-temp-buffer
+ (insert "ab")
+ (company-mode)
+ (let (company-frontends
+ (company-require-match 'company-explicit-action-p)
+ (company-backends
+ (list (lambda (command &optional arg)
+ (cl-case command
+ (prefix (buffer-substring (point-min) (point)))
+ (candidates '("abc" "abd")))))))
+ (company-idle-begin (current-buffer) (selected-window)
+ (buffer-chars-modified-tick) (point))
+ (let ((last-command-event ?e))
+ (company-call 'self-insert-command 1))
+ (should (eq nil company-candidates-length))
+ (should (eq 4 (point))))))
+
+(ert-deftest company-should-complete-whitelist ()
+ (with-temp-buffer
+ (insert "ab")
+ (company-mode)
+ (let (company-frontends
+ company-begin-commands
+ (company-backends
+ (list (lambda (command &optional arg)
+ (cl-case command
+ (prefix (buffer-substring (point-min) (point)))
+ (candidates '("abc" "abd")))))))
+ (let ((company-continue-commands nil))
+ (let (this-command)
+ (company-complete))
+ (company-call 'backward-delete-char 1)
+ (should (null company-candidates-length)))
+ (let ((company-continue-commands '(backward-delete-char)))
+ (let (this-command)
+ (company-complete))
+ (company-call 'backward-delete-char 1)
+ (should (eq 2 company-candidates-length))))))
+
+(ert-deftest company-should-complete-blacklist ()
+ (with-temp-buffer
+ (insert "ab")
+ (company-mode)
+ (let (company-frontends
+ company-begin-commands
+ (company-backends
+ (list (lambda (command &optional arg)
+ (cl-case command
+ (prefix (buffer-substring (point-min) (point)))
+ (candidates '("abc" "abd")))))))
+ (let ((company-continue-commands '(not backward-delete-char)))
+ (let (this-command)
+ (company-complete))
+ (company-call 'backward-delete-char 1)
+ (should (null company-candidates-length)))
+ (let ((company-continue-commands '(not backward-delete-char-untabify)))
+ (let (this-command)
+ (company-complete))
+ (company-call 'backward-delete-char 1)
+ (should (eq 2 company-candidates-length))))))
+
+(ert-deftest company-auto-complete-explicit ()
+ (with-temp-buffer
+ (insert "ab")
+ (company-mode)
+ (let (company-frontends
+ (company-auto-complete 'company-explicit-action-p)
+ (company-auto-complete-chars '(? ))
+ (company-backends
+ (list (lambda (command &optional arg)
+ (cl-case command
+ (prefix (buffer-substring (point-min) (point)))
+ (candidates '("abcd" "abef")))))))
+ (let (this-command)
+ (company-complete))
+ (let ((last-command-event ? ))
+ (company-call 'self-insert-command 1))
+ (should (string= "abcd " (buffer-string))))))
+
+(ert-deftest company-no-auto-complete-when-idle ()
+ (with-temp-buffer
+ (insert "ab")
+ (company-mode)
+ (let (company-frontends
+ (company-auto-complete 'company-explicit-action-p)
+ (company-auto-complete-chars '(? ))
+ (company-backends
+ (list (lambda (command &optional arg)
+ (cl-case command
+ (prefix (buffer-substring (point-min) (point)))
+ (candidates '("abcd" "abef")))))))
+ (company-idle-begin (current-buffer) (selected-window)
+ (buffer-chars-modified-tick) (point))
+ (let ((last-command-event ? ))
+ (company-call 'self-insert-command 1))
+ (should (string= "ab " (buffer-string))))))
+
+(ert-deftest company-clears-explicit-action-when-no-matches ()
+ (with-temp-buffer
+ (company-mode)
+ (let (company-frontends
+ company-backends)
+ (company-call 'manual-begin) ;; fails
+ (should (null company-candidates))
+ (should (null (company-explicit-action-p))))))
+
+(ert-deftest company-ignore-case-replaces-prefix ()
+ (with-temp-buffer
+ (company-mode)
+ (let (company-frontends
+ company-end-of-buffer-workaround
+ (company-backends
+ (list (lambda (command &optional arg)
+ (cl-case command
+ (prefix (buffer-substring (point-min) (point)))
+ (candidates '("abcd" "abef"))
+ (ignore-case t))))))
+ (insert "A")
+ (let (this-command)
+ (company-complete))
+ (should (string= "ab" (buffer-string)))
+ (delete-char -2)
+ (insert "A") ; hack, to keep it in one test
+ (company-complete-selection)
+ (should (string= "abcd" (buffer-string))))))
+
+(ert-deftest company-ignore-case-with-keep-prefix ()
+ (with-temp-buffer
+ (insert "AB")
+ (company-mode)
+ (let (company-frontends
+ (company-backends
+ (list (lambda (command &optional arg)
+ (cl-case command
+ (prefix (buffer-substring (point-min) (point)))
+ (candidates '("abcd" "abef"))
+ (ignore-case 'keep-prefix))))))
+ (let (this-command)
+ (company-complete))
+ (company-complete-selection)
+ (should (string= "ABcd" (buffer-string))))))
+
+(ert-deftest company-non-prefix-completion ()
+ (with-temp-buffer
+ (insert "tc")
+ (company-mode)
+ (let (company-frontends
+ company-end-of-buffer-workaround
+ (company-backends
+ (list (lambda (command &optional arg)
+ (cl-case command
+ (prefix (buffer-substring (point-min) (point)))
+ (candidates '("tea-cup" "teal-color")))))))
+ (let (this-command)
+ (company-complete))
+ (should (string= "tc" (buffer-string)))
+ (company-complete-selection)
+ (should (string= "tea-cup" (buffer-string))))))
+
+(ert-deftest company-pseudo-tooltip-does-not-get-displaced ()
+ :tags '(interactive)
+ (with-temp-buffer
+ (save-window-excursion
+ (set-window-buffer nil (current-buffer))
+ (save-excursion (insert " ff"))
+ (company-mode)
+ (let ((company-frontends '(company-pseudo-tooltip-frontend))
+ (company-begin-commands '(self-insert-command))
+ (company-backends
+ (list (lambda (c &optional arg)
+ (cl-case c (prefix "") (candidates '("a" "b" "c")))))))
+ (let (this-command)
+ (company-call 'complete))
+ (company-call 'open-line 1)
+ (should (eq 2 (overlay-start company-pseudo-tooltip-overlay)))))))
+
+(ert-deftest company-pseudo-tooltip-show ()
+ :tags '(interactive)
+ (with-temp-buffer
+ (save-window-excursion
+ (set-window-buffer nil (current-buffer))
+ (insert "aaaa\n bb\nccccccc\nddd")
+ (search-backward "bb")
+ (let ((col (company--column))
+ (company-candidates-length 2)
+ (company-candidates '("123" "45"))
+ (company-backend 'ignore))
+ (company-pseudo-tooltip-show (company--row) col 0)
+ (let ((ov company-pseudo-tooltip-overlay))
+ ;; With margins.
+ (should (eq (overlay-get ov 'company-width) 5))
+ ;; FIXME: Make it 2?
+ (should (eq (overlay-get ov 'company-height) company-tooltip-limit))
+ (should (eq (overlay-get ov 'company-column) col))
+ (should (string= (overlay-get ov 'company-after)
+ " 123 \nc 45 c\nddd\n")))))))
+
+(ert-deftest company-preview-show-with-annotations ()
+ :tags '(interactive)
+ (with-temp-buffer
+ (save-window-excursion
+ (set-window-buffer nil (current-buffer))
+ (save-excursion (insert "\n"))
+ (let ((company-candidates-length 1)
+ (company-candidates '("123")))
+ (company-preview-show-at-point (point))
+ (let ((ov company-preview-overlay))
+ (should (string= (overlay-get ov 'display) "123\n")))))))
+
+(ert-deftest company-pseudo-tooltip-show-with-annotations ()
+ :tags '(interactive)
+ (with-temp-buffer
+ (save-window-excursion
+ (set-window-buffer nil (current-buffer))
+ (insert " ")
+ (save-excursion (insert "\n"))
+ (let ((company-candidates-length 2)
+ (company-backend (lambda (action &optional arg &rest _ignore)
+ (when (eq action 'annotation)
+ (cdr (assoc arg '(("123" . "(4)")))))))
+ (company-candidates '("123" "45"))
+ company-tooltip-align-annotations)
+ (company-pseudo-tooltip-show-at-point (point))
+ (let ((ov company-pseudo-tooltip-overlay))
+ ;; With margins.
+ (should (eq (overlay-get ov 'company-width) 8))
+ (should (string= (overlay-get ov 'company-after)
+ " 123(4) \n 45 \n")))))))
+
+(ert-deftest company-pseudo-tooltip-show-with-annotations-right-aligned ()
+ :tags '(interactive)
+ (with-temp-buffer
+ (save-window-excursion
+ (set-window-buffer nil (current-buffer))
+ (insert " ")
+ (save-excursion (insert "\n"))
+ (let ((company-candidates-length 3)
+ (company-backend (lambda (action &optional arg &rest _ignore)
+ (when (eq action 'annotation)
+ (cdr (assoc arg '(("123" . "(4)")
+ ("67" . "(891011)")))))))
+ (company-candidates '("123" "45" "67"))
+ (company-tooltip-align-annotations t))
+ (company-pseudo-tooltip-show-at-point (point))
+ (let ((ov company-pseudo-tooltip-overlay))
+ ;; With margins.
+ (should (eq (overlay-get ov 'company-width) 13))
+ (should (string= (overlay-get ov 'company-after)
+ " 123 (4) \n 45 \n 67 (891011) \n")))))))
+
+(ert-deftest company-create-lines-shows-numbers ()
+ (let ((company-show-numbers t)
+ (company-candidates '("x" "y" "z"))
+ (company-candidates-length 3)
+ (company-backend 'ignore))
+ (should (equal '(" x 1 " " y 2 " " z 3 ")
+ (company--create-lines 0 999)))))
+
+(ert-deftest company-create-lines-truncates-annotations ()
+ (let* ((ww (company--window-width))
+ (data `(("1" . "(123)")
+ ("2" . nil)
+ ("3" . ,(concat "(" (make-string (- ww 2) ?4) ")"))
+ (,(make-string ww ?4) . "<4>")))
+ (company-candidates (mapcar #'car data))
+ (company-candidates-length 4)
+ (company-tooltip-margin 1)
+ (company-backend (lambda (cmd &optional arg)
+ (when (eq cmd 'annotation)
+ (cdr (assoc arg data)))))
+ company-tooltip-align-annotations)
+ (should (equal (list (format " 1(123)%s " (company-space-string (- ww 8)))
+ (format " 2%s " (company-space-string (- ww 3)))
+ (format " 3(444%s " (make-string (- ww 7) ?4))
+ (format " %s " (make-string (- ww 2) ?4)))
+ (company--create-lines 0 999)))
+ (let ((company-tooltip-align-annotations t))
+ (should (equal (list (format " 1%s(123) " (company-space-string (- ww 8)))
+ (format " 2%s " (company-space-string (- ww 3)))
+ (format " 3 (444%s " (make-string (- ww 8) ?4))
+ (format " %s " (make-string (- ww 2) ?4)))
+ (company--create-lines 0 999))))))
+
+(ert-deftest company-column-with-composition ()
+ (with-temp-buffer
+ (insert "lambda ()")
+ (compose-region 1 (1+ (length "lambda")) "\\")
+ (should (= (company--column) 4))))
+
+(ert-deftest company-column-with-line-prefix ()
+ (with-temp-buffer
+ (insert "foo")
+ (put-text-property (point-min) (point) 'line-prefix " ")
+ (should (= (company--column) 5))))
+
+(ert-deftest company-column-wth-line-prefix-on-empty-line ()
+ (with-temp-buffer
+ (insert "\n")
+ (forward-char -1)
+ (put-text-property (point-min) (point-max) 'line-prefix " ")
+ (should (= (company--column) 2))))
+
+(ert-deftest company-plainify ()
+ (let ((tab-width 8))
+ (should (equal-including-properties
+ (company-plainify "\tabc\td\t")
+ (concat " "
+ "abc "
+ "d "))))
+ (should (equal-including-properties
+ (company-plainify (propertize "foobar" 'line-prefix "-*-"))
+ "-*-foobar")))
+
+(ert-deftest company-modify-line ()
+ (let ((str "-*-foobar"))
+ (should (equal-including-properties
+ (company-modify-line str "zz" 4)
+ "-*-fzzbar"))
+ (should (equal-including-properties
+ (company-modify-line str "xx" 0)
+ "xx-foobar"))
+ (should (equal-including-properties
+ (company-modify-line str "zz" 10)
+ "-*-foobar zz"))))
+
+(ert-deftest company-scrollbar-bounds ()
+ (should (equal nil (company--scrollbar-bounds 0 3 3)))
+ (should (equal nil (company--scrollbar-bounds 0 4 3)))
+ (should (equal '(0 . 0) (company--scrollbar-bounds 0 1 2)))
+ (should (equal '(1 . 1) (company--scrollbar-bounds 2 2 4)))
+ (should (equal '(2 . 3) (company--scrollbar-bounds 7 4 12)))
+ (should (equal '(1 . 2) (company--scrollbar-bounds 3 4 12)))
+ (should (equal '(1 . 3) (company--scrollbar-bounds 4 5 11))))
+
+;;; Async
+
+(defun company-async-backend (command &optional arg)
+ (pcase command
+ (`prefix "foo")
+ (`candidates
+ (cons :async
+ (lambda (cb)
+ (run-with-timer 0.05 nil
+ #'funcall cb '("abc" "abd")))))))
+
+(ert-deftest company-call-backend-forces-sync ()
+ (let ((company-backend 'company-async-backend)
+ (company-async-timeout 0.1))
+ (should (equal '("abc" "abd") (company-call-backend 'candidates)))))
+
+(ert-deftest company-call-backend-errors-on-timeout ()
+ (with-temp-buffer
+ (let* ((company-backend (lambda (command &optional _arg)
+ (pcase command
+ (`candidates (cons :async 'ignore)))))
+ (company-async-timeout 0.1)
+ (err (should-error (company-call-backend 'candidates "foo"))))
+ (should (string-match-p "async timeout" (cadr err))))))
+
+(ert-deftest company-call-backend-raw-passes-return-value-verbatim ()
+ (let ((company-backend 'company-async-backend))
+ (should (equal "foo" (company-call-backend-raw 'prefix)))
+ (should (equal :async (car (company-call-backend-raw 'candidates "foo"))))
+ (should (equal 'closure (cadr (company-call-backend-raw 'candidates "foo"))))))
+
+(ert-deftest company-manual-begin-forces-async-candidates-to-sync ()
+ (with-temp-buffer
+ (company-mode)
+ (let (company-frontends
+ (company-backends (list 'company-async-backend)))
+ (company-manual-begin)
+ (should (equal "foo" company-prefix))
+ (should (equal '("abc" "abd") company-candidates)))))
+
+(ert-deftest company-idle-begin-allows-async-candidates ()
+ (with-temp-buffer
+ (company-mode)
+ (let (company-frontends
+ (company-backends (list 'company-async-backend)))
+ (company-idle-begin (current-buffer) (selected-window)
+ (buffer-chars-modified-tick) (point))
+ (should (null company-candidates))
+ (sleep-for 0.1)
+ (should (equal "foo" company-prefix))
+ (should (equal '("abc" "abd") company-candidates)))))
+
+(ert-deftest company-idle-begin-cancels-async-candidates-if-buffer-changed ()
+ (with-temp-buffer
+ (company-mode)
+ (let (company-frontends
+ (company-backends (list 'company-async-backend)))
+ (company-idle-begin (current-buffer) (selected-window)
+ (buffer-chars-modified-tick) (point))
+ (should (null company-candidates))
+ (insert "a")
+ (sleep-for 0.1)
+ (should (null company-prefix))
+ (should (null company-candidates)))))
+
+(ert-deftest company-idle-begin-async-allows-immediate-callbacks ()
+ (with-temp-buffer
+ (company-mode)
+ (let (company-frontends
+ (company-backends
+ (list (lambda (command &optional arg)
+ (pcase command
+ (`prefix (buffer-substring (point-min) (point)))
+ (`candidates
+ (let ((c (all-completions arg '("abc" "def"))))
+ (cons :async
+ (lambda (cb) (funcall cb c)))))
+ (`no-cache t)))))
+ (company-minimum-prefix-length 0))
+ (company-idle-begin (current-buffer) (selected-window)
+ (buffer-chars-modified-tick) (point))
+ (should (equal '("abc" "def") company-candidates))
+ (let ((last-command-event ?a))
+ (company-call 'self-insert-command 1))
+ (should (equal '("abc") company-candidates)))))
+
+(ert-deftest company-multi-backend-forces-prefix-to-sync ()
+ (with-temp-buffer
+ (let ((company-backend (list 'ignore
+ (lambda (command)
+ (should (eq command 'prefix))
+ (cons :async
+ (lambda (cb)
+ (run-with-timer
+ 0.01 nil
+ (lambda () (funcall cb nil))))))
+ (lambda (command)
+ (should (eq command 'prefix))
+ "foo"))))
+ (should (equal "foo" (company-call-backend-raw 'prefix))))
+ (let ((company-backend (list (lambda (_command)
+ (cons :async
+ (lambda (cb)
+ (run-with-timer
+ 0.01 nil
+ (lambda () (funcall cb "bar"))))))
+ (lambda (_command)
+ "foo"))))
+ (should (equal "bar" (company-call-backend-raw 'prefix))))))
+
+(ert-deftest company-multi-backend-merges-deferred-candidates ()
+ (with-temp-buffer
+ (let* ((immediate (lambda (command &optional arg)
+ (pcase command
+ (`prefix "foo")
+ (`candidates
+ (cons :async
+ (lambda (cb) (funcall cb '("f"))))))))
+ (company-backend (list 'ignore
+ (lambda (command &optional arg)
+ (pcase command
+ (`prefix "foo")
+ (`candidates
+ (should (equal arg "foo"))
+ (cons :async
+ (lambda (cb)
+ (run-with-timer
+ 0.01 nil
+ (lambda () (funcall cb '("a" "b")))))))))
+ (lambda (command &optional arg)
+ (pcase command
+ (`prefix "foo")
+ (`candidates '("c" "d" "e"))))
+ immediate)))
+ (should (equal :async (car (company-call-backend-raw 'candidates "foo"))))
+ (should (equal '("a" "b" "c" "d" "e" "f")
+ (company-call-backend 'candidates "foo")))
+ (let ((company-backend (list immediate)))
+ (should (equal '("f") (company-call-backend 'candidates "foo")))))))
+
+;;; Template
+
+(ert-deftest company-template-removed-after-the-last-jump ()
+ (with-temp-buffer
+ (insert "{ }")
+ (goto-char 2)
+ (let ((tpl (company-template-declare-template (point) (1- (point-max)))))
+ (save-excursion
+ (dotimes (i 2)
+ (insert " ")
+ (company-template-add-field tpl (point) "foo")))
+ (company-call 'template-forward-field)
+ (should (= 3 (point)))
+ (company-call 'template-forward-field)
+ (should (= 7 (point)))
+ (company-call 'template-forward-field)
+ (should (= 11 (point)))
+ (should (zerop (length (overlay-get tpl 'company-template-fields))))
+ (should (null (overlay-buffer tpl))))))
+
+(ert-deftest company-template-removed-after-input-and-jump ()
+ (with-temp-buffer
+ (insert "{ }")
+ (goto-char 2)
+ (let ((tpl (company-template-declare-template (point) (1- (point-max)))))
+ (save-excursion
+ (insert " ")
+ (company-template-add-field tpl (point) "bar"))
+ (company-call 'template-move-to-first tpl)
+ (should (= 3 (point)))
+ (dolist (c (string-to-list "tee"))
+ (let ((last-command-event c))
+ (company-call 'self-insert-command 1)))
+ (should (string= "{ tee }" (buffer-string)))
+ (should (overlay-buffer tpl))
+ (company-call 'template-forward-field)
+ (should (= 7 (point)))
+ (should (null (overlay-buffer tpl))))))
+
+(defun company-call (name &rest args)
+ (let* ((maybe (intern (format "company-%s" name)))
+ (command (if (fboundp maybe) maybe name)))
+ (let ((this-command command))
+ (run-hooks 'pre-command-hook))
+ (apply command args)
+ (let ((this-command command))
+ (run-hooks 'post-command-hook))))
+
+(ert-deftest company-template-c-like-templatify ()
+ (with-temp-buffer
+ (let ((text "foo(int a, short b)"))
+ (insert text)
+ (company-template-c-like-templatify text)
+ (should (equal "foo(arg0, arg1)" (buffer-string)))
+ (should (looking-at "arg0"))
+ (should (equal "int a"
+ (overlay-get (company-template-field-at) 'display))))))
+
+(ert-deftest company-template-c-like-templatify-trims-after-closing-paren ()
+ (with-temp-buffer
+ (let ((text "foo(int a, short b)!@ #1334 a"))
+ (insert text)
+ (company-template-c-like-templatify text)
+ (should (equal "foo(arg0, arg1)" (buffer-string)))
+ (should (looking-at "arg0")))))
+
+;;; Clang
+
+(ert-deftest company-clang-objc-templatify ()
+ (with-temp-buffer
+ (let ((text "createBookWithTitle:andAuthor:"))
+ (insert text)
+ (company-clang-objc-templatify text)
+ (should (equal "createBookWithTitle:arg0 andAuthor:arg1" (buffer-string)))
+ (should (looking-at "arg0"))
+ (should (null (overlay-get (company-template-field-at) 'display))))))