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;;; Setup
(require 'cl-lib)

(defmacro line-should-match (regexp)
  "Test if the line at point matches REGEXP"
  `(let ((line (buffer-substring-no-properties
                (line-beginning-position)
                (line-end-position))))
     (sx-test-message "Line here is: %S" line)
     (should (string-match ,regexp line))))

(defmacro question-list-regex (title votes answers &rest tags)
  "Construct a matching regexp for TITLE, VOTES, and ANSWERS.
Each element of TAGS is appended at the end of the expression
after being run through `sx-question--tag-format'."
  `(rx line-start
       (+ whitespace) ,(number-to-string votes)
       (+ whitespace) ,(number-to-string answers)
       (+ whitespace)
       ,title
       (+ (any whitespace digit))
       (or "y" "d" "h" "m" "mo" "s") " ago"
       (+ whitespace)
       (eval (mapconcat #'sx-question--tag-format
                        (list ,@tags) " "))))


;;; Tests
(ert-deftest question-list-tag ()
  "Test `sx-question--tag-format'."
  (should
   (string=
    (sx-question--tag-format "tag")
    "[tag]")))

(ert-deftest question-list-display ()
  (cl-letf (((symbol-function #'sx-request-make)
             (lambda (&rest _) sx-test-data-questions)))
    (sx-tab-frontpage nil "emacs")
    (switch-to-buffer "*question-list*")
    (goto-char (point-min))
    (should (equal (buffer-name) "*question-list*"))
    (line-should-match
     (question-list-regex
      "Focus-hook: attenuate colours when losing focus"
      1 0 "frames" "hooks" "focus"))
    (sx-question-list-next 5)
    (line-should-match
     (question-list-regex
      "Babel doesn't wrap results in verbatim"
      0 1 "org-mode" "org-export" "org-babel"))
    ;; ;; Use this when we have a real sx-question buffer.
    ;; (call-interactively 'sx-question-list-display-question)
    ;; (should (equal (buffer-name) "*sx-question*"))
    (switch-to-buffer "*question-list*")
    (sx-question-list-previous 4)
    (line-should-match
     (question-list-regex
      ""Making tag completion table" Freezes/Blocks -- how to disable"
      2 1 "autocomplete" "performance" "ctags"))))

(ert-deftest sx--user-@name ()
  "Test `sx--user-@name' character substitution"
  (should
   (string=
    (sx--user-@name '((display_name . "ĥÞßđłřğĝýÿñńśşšŝżźžçćčĉùúûüŭůòóôõöøőðìíîïıèéêëęàåáâäãåąĵ★")))
    "@hTHssdlrggyynnsssszzzccccuuuuuuooooooooiiiiieeeeeaaaaaaaaj"))
  (should
   (string=
    (sx--user-@name '((display_name . "ĤÞßĐŁŘĞĜÝŸÑŃŚŞŠŜŻŹŽÇĆČĈÙÚÛÜŬŮÒÓÔÕÖØŐÐÌÍÎÏıÈÉÊËĘÀÅÁÂÄÃÅĄĴ")))
    "@HTHssDLRGGYYNNSSSSZZZCCCCUUUUUUOOOOOOOOIIIIiEEEEEAAAAAAAAJ")))

(ert-deftest sx-question-mode--fill-and-fontify ()
  "Check complicated questions are filled correctly."
  (should
   (equal
    (sx-question-mode--fill-and-fontify
     "Creating an account on a new site requires you to log into that site using *the same credentials you used on existing sites.* For instance, if you used the Stack Exchange login method, you'd...

1. Click the \"Log in using Stack Exchange\" button:

  ![][1]

2. Enter your username and password (yes, even if you *just did this* to log into, say, Stack Overflow) and press the \"Log In\" button:

  ![][2]

3. Confirm the creation of the new account:

  ![][3]

        some code block
        some code block
        some code block
        some code block
        some code block
        some code block

  [1]: http://i.stack.imgur.com/ktFTs.png
  [2]: http://i.stack.imgur.com/5l2AY.png
  [3]: http://i.stack.imgur.com/22myl.png")
    "Creating an account on a new site requires you to log into that site
using *the same credentials you used on existing sites.* For instance,
if you used the Stack Exchange login method, you'd...

1. Click the \"Log in using Stack Exchange\" button:

  ![][1]

2. Enter your username and password (yes, even if you *just did this*
   to log into, say, Stack Overflow) and press the \"Log In\" button:

  ![][2]

3. Confirm the creation of the new account:

  ![][3]

        some code block
        some code block
        some code block
        some code block
        some code block
        some code block
        
  [1]: http://i.stack.imgur.com/ktFTs.png
  [2]: http://i.stack.imgur.com/5l2AY.png
  [3]: http://i.stack.imgur.com/22myl.png")))