(company-complete-selection)
(should (string= "tea-cup" (buffer-string))))))
+(defvar ct-sorted nil)
+
+(defun ct-equal-including-properties (list1 list2)
+ (or (and (not list1) (not list2))
+ (and (ert-equal-including-properties (car list1) (car list2))
+ (ct-equal-including-properties (cdr list1) (cdr list2)))))
+
+(ert-deftest company-strips-duplicates-returns-nil ()
+ (should (null (company--preprocess-candidates nil))))
+
+(ert-deftest company-strips-duplicates-within-groups ()
+ (let* ((kvs '(("a" . "b")
+ ("a" . nil)
+ ("a" . "b")
+ ("a" . "c")
+ ("a" . "b")
+ ("b" . nil)
+ ("b" . "c")
+ ("a" . "b")
+ ("c" . nil)
+ ("c" . nil)))
+ (fn (lambda (kvs)
+ (mapcar (lambda (kv) (propertize (car kv) 'ann (cdr kv)))
+ kvs)))
+ (company-backend
+ (lambda (command &optional arg)
+ (pcase command
+ (`prefix "")
+ (`sorted ct-sorted)
+ (`duplicates t)
+ (`annotation (get-text-property 0 'ann arg)))))
+ (reference '(("a" . "b")
+ ("a" . "c")
+ ("b" . "c")
+ ("a" . "b")
+ ("c" . nil))))
+ (let ((ct-sorted t))
+ (should (ct-equal-including-properties
+ (company--preprocess-candidates (funcall fn kvs))
+ (funcall fn reference))))
+ (should (ct-equal-including-properties
+ (company--preprocess-candidates (funcall fn kvs))
+ (funcall fn (append (butlast reference 2)
+ (last reference)))))))
+
;;; Row and column
(ert-deftest company-column-with-composition ()