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;;; mastodon-toot-test.el --- Tests for mastodon-toot.el  -*- lexical-binding: nil -*-

(require 'el-mock)
(require 'mastodon-http)

(defconst mastodon-toot--200-html
  "HTTP/1.1 200 OK
Date: Mon, 20 Dec 2021 13:42:29 GMT
Content-Type: application/json; charset=utf-8
Transfer-Encoding: chunked")

(defconst mastodon-toot-test-base-toot
  '((id . 61208)
    (created_at . "2017-04-24T19:01:02.000Z")
    (in_reply_to_id)
    (in_reply_to_account_id)
    (sensitive . :json-false)
    (spoiler_text . "")
    (visibility . "public")
    (account (id . 42)
             (username . "acct42")
             (acct . "acct42@example.space")
             (display_name . "Account 42")
             (locked . :json-false)
             (created_at . "2017-04-01T00:00:00.000Z")
             (followers_count . 99)
             (following_count . 13)
             (statuses_count . 101)
             (note . "E"))
    (media_attachments . [])
    (mentions . [])
    (tags . [])
    (uri . "tag:example.space,2017-04-24:objectId=654321:objectType=Status")
    (url . "https://example.space/users/acct42/updates/123456789")
    (content . "<p>Just some text</p>")
    (reblogs_count . 0)
    (favourites_count . 0)
    (reblog))
  "A sample toot (parsed json)")

(defconst mastodon-toot--mock-toot
  (propertize "here is a mock toot text."
              'toot-json mastodon-toot-test-base-toot))

(defconst mastodon-toot--multi-mention
  '((mentions .
              [((id . "1")
                (username . "federated")
                (url . "https://site.cafe/@federated")
                (acct . "federated@federated.cafe"))
               ((id . "1")
                (username . "federated")
                (url . "https://site.cafe/@federated")
                (acct . "federated@federated.social"))
               ((id . "1")
                (username . "local")
                (url . "")
                (acct . "local"))])))
(defconst mastodon-toot-no-mention
  '((mentions . [])))

(defconst mastodon-toot--multi-mention-extracted
  '("local" "federated@federated.social" "federated@federated.cafe"))

(ert-deftest mastodon-toot--multi-mentions ()
  "Should build a correct mention string from the test toot data.

Even the local name \"local\" gets a domain name added."
  (let ((mastodon-auth--acct-alist '(("https://local.social". "null")))
        (mastodon-instance-url "https://local.social"))
    (should (equal
             (mastodon-toot--mentions mastodon-toot--multi-mention)
             '("local" "federated@federated.social" "federated@federated.cafe")))))

(ert-deftest mastodon-toot--multi-mentions-to-string ()
  "Should build a correct mention string from the test toot data.

Even the local name \"local\" gets a domain name added."
  (let ((mastodon-auth--acct-alist '(("https://local.social". "null")))
        (mastodon-instance-url "https://local.social"))
    (should (string=
             (mastodon-toot--mentions-to-string mastodon-toot--multi-mention-extracted)
             "@local@local.social @federated@federated.social @federated@federated.cafe"))))

(ert-deftest mastodon-toot--multi-mentions-with-name-to-string ()
  "Should build a correct mention string omitting self.

Here \"local\" is the user themselves and gets omitted from the
mention string."
  (let ((mastodon-auth--acct-alist
         '(("https://local.social". "local")))
        (mastodon-instance-url "https://local.social"))
    (should (string=
             (mastodon-toot--mentions-to-string mastodon-toot--multi-mention-extracted)
             "@federated@federated.social @federated@federated.cafe"))))

(ert-deftest mastodon-toot--no-mention-to-string ()
  "Should return and empty string."
  (let ((mastodon-auth--acct-alist
         '(("https://local.social". "local")))
        (mastodon-instance-url "https://local.social"))
    (should (string=
             (mastodon-toot--mentions-to-string nil)
             ""))))

(ert-deftest mastodon-toot--no-mention ()
  "Should construct an empty mention list without mentions."
  (let ((mastodon-auth--acct-alist
         '(("https://local.social". "null")))
        (mastodon-instance-url "https://local.social"))
    (should (equal (mastodon-toot--mentions mastodon-toot-no-mention) nil))))

;; TODO: test y-or-no-p with mastodon-toot--cancel
(ert-deftest mastodon-toot--kill ()
  "Should kill the buffer when cancelling the toot."
  (let ((mastodon-toot-previous-window-config
         (list (current-window-configuration)
               (point-marker))))
    (with-mock
      (mock (kill-buffer-and-window))
      (mastodon-toot--kill)
      (mock-verify))))

(ert-deftest mastodon-toot--own-toot-p-fail ()
  "Should not return t if not own toot."
  (let ((toot mastodon-toot-test-base-toot))
    (with-mock
      (mock (mastodon-auth--user-acct) => "joebogus@bogus.space")
      (should (not (equal (mastodon-toot--own-toot-p toot)
                          t))))))

(ert-deftest mastodon-toot--own-toot-p ()
  "Should return 't' if own toot."
  (let ((toot mastodon-toot-test-base-toot))
    (with-mock
      (mock (mastodon-auth--user-acct) => "acct42@example.space")
      (should (equal (mastodon-toot--own-toot-p toot)
                     t)))))

(ert-deftest mastodon-toot--delete-toot-fail ()
  "Should refuse to delete toot."
  (let ((toot mastodon-toot-test-base-toot))
    (with-mock
     (mock (mastodon-auth--user-acct) => "joebogus")
     ;; (mock (mastodon-toot--own-toot-p toot) => nil)
     (mock (mastodon-tl--property 'toot-json) => mastodon-toot-test-base-toot)
     (mock (mastodon-tl--property 'base-toot) => toot)
     (should (equal (mastodon-toot--delete-toot)
                    "You can only delete (and redraft) your own toots.")))))

(ert-deftest mastodon-toot--delete-toot ()
  "Should return correct triaged response to a legitimate DELETE request."
  (with-temp-buffer
    (insert mastodon-toot--200-html)
    (let ((delete-response (current-buffer))
          (toot mastodon-toot-test-base-toot))
      (with-mock
       (mock (mastodon-tl--property 'toot-json) => toot)
       (mock (mastodon-tl--property 'base-toot) => toot)
       ;; (mock (mastodon-toot--own-toot-p toot) => t)
       (mock (mastodon-auth--user-acct) => "acct42@example.space")
       (mock (mastodon-http--api (format "statuses/61208"))
             => "https://example.space/statuses/61208")
       (mock (y-or-n-p "Delete this toot? ") => t)
       (mock (mastodon-http--delete "https://example.space/statuses/61208")
             => delete-response)
       (should (equal (mastodon-toot--delete-toot)
                      "Toot deleted!"))))))

(ert-deftest mastodon-toot-action-pin ()
  "Should return callback provided by `mastodon-toot--pin-toot-toggle'."
  (with-temp-buffer
    (insert mastodon-toot--200-html)
    (let ((pin-response (current-buffer))
          (toot mastodon-toot-test-base-toot)
          (id 61208))
      (with-mock
       (mock (mastodon-tl--property 'base-toot-id) => id)
       (mock (mastodon-http--api "statuses/61208/pin")
             => "https://example.space/statuses/61208/pin")
       (mock (mastodon-http--post "https://example.space/statuses/61208/pin")
             => pin-response)
       (should (equal (mastodon-toot--action "pin" (lambda ()
                                                     (message "Toot pinned!")))
                      "Toot pinned!"))))))

(ert-deftest mastodon-toot--pin-toot-fail ()
  (with-temp-buffer
    (insert mastodon-toot--200-html)
    (let ((pin-response (current-buffer))
          (toot mastodon-toot-test-base-toot))
      (with-mock
       (mock (mastodon-tl--property 'toot-json) => toot)
       (mock (mastodon-tl--property 'base-toot) => toot)
       (mock (mastodon-auth--user-acct) => "joebogus@example.space")
       (should (equal (mastodon-toot--pin-toot-toggle)
                      "You can only pin your own toots."))))))