+ (should (eq 1 (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-display)
+ "\n 123 \nc 45 c\nddd\n")))))))
+
+(ert-deftest company-pseudo-tooltip-edit-updates-width ()
+ :tags '(interactive)
+ (with-temp-buffer
+ (set-window-buffer nil (current-buffer))
+ (let ((company-candidates-length 5)
+ (company-candidates '("123" "45" "67" "89" "1011"))
+ (company-backend 'ignore)
+ (company-tooltip-limit 4)
+ (company-tooltip-offset-display 'scrollbar))
+ (company-pseudo-tooltip-show (company--row)
+ (company--column)
+ 0)
+ (should (eq (overlay-get company-pseudo-tooltip-overlay 'company-width)
+ 6))
+ (company-pseudo-tooltip-edit 4)
+ (should (eq (overlay-get company-pseudo-tooltip-overlay 'company-width)
+ 7)))))
+
+(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)
+ (str (overlay-get ov 'after-string)))
+ (should (string= str "123"))
+ (should (eq (get-text-property 0 'cursor str) t)))))))
+
+(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) 0)
+ (let ((ov company-pseudo-tooltip-overlay))
+ ;; With margins.
+ (should (eq (overlay-get ov 'company-width) 8))
+ (should (string= (overlay-get ov 'company-display)
+ "\n 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) 0)
+ (let ((ov company-pseudo-tooltip-overlay))
+ ;; With margins.
+ (should (eq (overlay-get ov 'company-width) 13))
+ (should (string= (overlay-get ov 'company-display)
+ "\n 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-create-lines-truncates-common-part ()
+ (let* ((ww (company--window-width))
+ (company-candidates-length 2)
+ (company-tooltip-margin 1)
+ (company-backend #'ignore))
+ (let* ((company-common (make-string (- ww 3) ?1))
+ (company-candidates `(,(concat company-common "2")
+ ,(concat company-common "3"))))
+ (should (equal (list (format " %s2 " (make-string (- ww 3) ?1))
+ (format " %s3 " (make-string (- ww 3) ?1)))
+ (company--create-lines 0 999))))
+ (let* ((company-common (make-string (- ww 2) ?1))
+ (company-candidates `(,(concat company-common "2")
+ ,(concat company-common "3"))))
+ (should (equal (list (format " %s " company-common)
+ (format " %s " company-common))
+ (company--create-lines 0 999))))
+ (let* ((company-common (make-string ww ?1))
+ (company-candidates `(,(concat company-common "2")
+ ,(concat company-common "3")))
+ (res (company--create-lines 0 999)))
+ (should (equal (list (format " %s " (make-string (- ww 2) ?1))
+ (format " %s " (make-string (- ww 2) ?1)))
+ res))
+ (should (eq 'company-tooltip-common-selection
+ (get-text-property (- ww 2) 'face
+ (car res))))
+ (should (eq 'company-tooltip-selection
+ (get-text-property (1- ww) 'face
+ (car res))))
+ )))
+
+(ert-deftest company-create-lines-clears-out-non-printables ()
+ :tags '(interactive)
+ (let (company-show-numbers
+ (company-candidates (list
+ (decode-coding-string "avalis\351e" 'utf-8)
+ "avatar"))
+ (company-candidates-length 2)
+ (company-backend 'ignore))
+ (should (equal '(" avalis‗e "
+ " avatar ")
+ (company--create-lines 0 999)))))
+
+(ert-deftest company-create-lines-handles-multiple-width ()
+ :tags '(interactive)
+ (let (company-show-numbers
+ (company-candidates '("蛙蛙蛙蛙" "蛙abc"))
+ (company-candidates-length 2)
+ (company-backend 'ignore))
+ (should (equal '(" 蛙蛙蛙蛙 "
+ " 蛙abc ")
+ (company--create-lines 0 999)))))
+
+(ert-deftest company-column-with-composition ()
+ :tags '(interactive)
+ (with-temp-buffer
+ (save-window-excursion
+ (set-window-buffer nil (current-buffer))
+ (insert "lambda ()")
+ (compose-region 1 (1+ (length "lambda")) "\\")
+ (should (= (company--column) 4)))))
+
+(ert-deftest company-column-with-line-prefix ()
+ :tags '(interactive)
+ (with-temp-buffer
+ (save-window-excursion
+ (set-window-buffer nil (current-buffer))
+ (insert "foo")
+ (put-text-property (point-min) (point) 'line-prefix " ")
+ (should (= (company--column) 5)))))
+
+(ert-deftest company-column-with-line-prefix-on-empty-line ()
+ :tags '(interactive)
+ (with-temp-buffer
+ (save-window-excursion
+ (set-window-buffer nil (current-buffer))
+ (insert "\n")
+ (forward-char -1)
+ (put-text-property (point-min) (point-max) 'line-prefix " ")
+ (should (= (company--column) 2)))))
+
+(ert-deftest company-column-with-tabs ()
+ :tags '(interactive)
+ (with-temp-buffer
+ (save-window-excursion
+ (set-window-buffer nil (current-buffer))
+ (insert "|\t|\t|\t(")
+ (let ((tab-width 8))
+ (should (= (company--column) 25))))))
+
+(ert-deftest company-row-with-header-line-format ()
+ :tags '(interactive)
+ (with-temp-buffer
+ (save-window-excursion
+ (set-window-buffer nil (current-buffer))
+ (should (= (company--row) 0))
+ (setq header-line-format "aaaaaaa")
+ (should (= (company--row) 0)))))
+
+(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-buffer-lines-with-lines-folded ()
+ :tags '(interactive)
+ (with-temp-buffer
+ (insert (propertize "aaa\nbbb\nccc\nddd\n" 'display "aaa+\n"))
+ (insert "eee\nfff\nggg")
+ (should (equal (company-buffer-lines (point-min) (point-max))
+ '("aaa" "eee" "fff" "ggg")))))
+
+(ert-deftest company-buffer-lines-with-multiline-display ()
+ :tags '(interactive)
+ (with-temp-buffer
+ (insert (propertize "a" 'display "bbb\nccc\ndddd\n"))
+ (insert "eee\nfff\nggg")
+ (should (equal (company-buffer-lines (point-min) (point-max))
+ '("" "" "" "eee" "fff" "ggg")))))
+
+(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-transformers
+ (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-transformers
+ (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-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")))))))
+
+;;; Transformers
+
+(ert-deftest company-occurrence-prefer-closest-above ()
+ (with-temp-buffer
+ (save-window-excursion
+ (set-window-buffer nil (current-buffer))
+ (insert "foo0
+foo1
+")
+ (save-excursion
+ (insert "
+foo3
+foo2"))
+ (let ((company-backend 'company-dabbrev)
+ (company-occurrence-weight-function
+ 'company-occurrence-prefer-closest-above))
+ (should (equal '("foo1" "foo0" "foo3" "foo2" "foo4")
+ (company-sort-by-occurrence
+ '("foo0" "foo1" "foo2" "foo3" "foo4"))))))))
+
+(ert-deftest company-occurrence-prefer-any-closest ()
+ (with-temp-buffer
+ (save-window-excursion
+ (set-window-buffer nil (current-buffer))
+ (insert "foo0
+foo1
+")
+ (save-excursion
+ (insert "
+foo3
+foo2"))
+ (let ((company-backend 'company-dabbrev)
+ (company-occurrence-weight-function
+ 'company-occurrence-prefer-any-closest))
+ (should (equal '("foo1" "foo3" "foo0" "foo2" "foo4")
+ (company-sort-by-occurrence
+ '("foo0" "foo1" "foo2" "foo3" "foo4"))))))))
+
+;;; Template