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;;; test-calendar-sync--filter-declined.el --- Tests for filter-declined -*- lexical-binding: t; -*-
;;; Commentary:
;; Unit tests for calendar-sync--filter-declined function.
;; Drops events whose :status is "declined" when calendar-sync-skip-declined
;; is non-nil; otherwise returns the input list unchanged.
;; Covers Normal, Boundary, and Error cases.
;;; Code:
(require 'ert)
(require 'calendar-sync)
;;; Test Data
(defun test-filter-declined--make-events ()
"Return a small mixed-status event list."
(list (list :uid "a" :summary "Accepted meeting" :status "accepted")
(list :uid "b" :summary "Declined meeting" :status "declined")
(list :uid "c" :summary "Tentative meeting" :status "tentative")
(list :uid "d" :summary "Unknown status" :status nil)
(list :uid "e" :summary "Needs action" :status "needs-action")))
;;; Normal Cases
(ert-deftest test-calendar-sync--filter-declined-normal-drops-declined ()
"Normal: declined events are removed when the toggle is on."
(let ((calendar-sync-skip-declined t)
(events (test-filter-declined--make-events)))
(let ((result (calendar-sync--filter-declined events)))
(should (= 4 (length result)))
(should-not (cl-find "declined" result
:key (lambda (e) (plist-get e :status))
:test #'equal)))))
(ert-deftest test-calendar-sync--filter-declined-normal-keeps-accepted ()
"Normal: accepted events are preserved."
(let ((calendar-sync-skip-declined t)
(events (test-filter-declined--make-events)))
(let ((result (calendar-sync--filter-declined events)))
(should (cl-find "accepted" result
:key (lambda (e) (plist-get e :status))
:test #'equal)))))
(ert-deftest test-calendar-sync--filter-declined-normal-keeps-tentative ()
"Normal: tentative events are preserved (only declined is dropped)."
(let ((calendar-sync-skip-declined t)
(events (test-filter-declined--make-events)))
(let ((result (calendar-sync--filter-declined events)))
(should (cl-find "tentative" result
:key (lambda (e) (plist-get e :status))
:test #'equal)))))
(ert-deftest test-calendar-sync--filter-declined-normal-keeps-needs-action ()
"Normal: needs-action events are preserved."
(let ((calendar-sync-skip-declined t)
(events (test-filter-declined--make-events)))
(let ((result (calendar-sync--filter-declined events)))
(should (cl-find "needs-action" result
:key (lambda (e) (plist-get e :status))
:test #'equal)))))
(ert-deftest test-calendar-sync--filter-declined-normal-keeps-nil-status ()
"Normal: events with no PARTSTAT (nil :status) are preserved.
Events without an attendee block (one-person events, ICS feeds that
omit attendee data) come through with :status nil and must not be
filtered."
(let ((calendar-sync-skip-declined t)
(events (test-filter-declined--make-events)))
(let ((result (calendar-sync--filter-declined events)))
(should (cl-find nil result
:key (lambda (e) (plist-get e :status))
:test #'equal)))))
(ert-deftest test-calendar-sync--filter-declined-normal-toggle-off-keeps-all ()
"Normal: when the toggle is nil, declined events pass through."
(let ((calendar-sync-skip-declined nil)
(events (test-filter-declined--make-events)))
(let ((result (calendar-sync--filter-declined events)))
(should (= 5 (length result)))
(should (cl-find "declined" result
:key (lambda (e) (plist-get e :status))
:test #'equal)))))
;;; Boundary Cases
(ert-deftest test-calendar-sync--filter-declined-boundary-empty-list ()
"Boundary: empty event list returns empty list under either toggle setting."
(let ((calendar-sync-skip-declined t))
(should (null (calendar-sync--filter-declined '()))))
(let ((calendar-sync-skip-declined nil))
(should (null (calendar-sync--filter-declined '())))))
(ert-deftest test-calendar-sync--filter-declined-boundary-all-declined ()
"Boundary: list of only declined events returns empty list."
(let ((calendar-sync-skip-declined t)
(events (list (list :uid "a" :status "declined")
(list :uid "b" :status "declined")
(list :uid "c" :status "declined"))))
(should (null (calendar-sync--filter-declined events)))))
(ert-deftest test-calendar-sync--filter-declined-boundary-none-declined ()
"Boundary: list with zero declined events is returned unchanged in length."
(let ((calendar-sync-skip-declined t)
(events (list (list :uid "a" :status "accepted")
(list :uid "b" :status "tentative")
(list :uid "c" :status nil))))
(should (= 3 (length (calendar-sync--filter-declined events))))))
(ert-deftest test-calendar-sync--filter-declined-boundary-case-mismatch-not-dropped ()
"Boundary: a non-lowercase \"Declined\" is not dropped.
`calendar-sync--find-user-status' downcases PARTSTAT before storing,
so any :status reaching the filter is already lowercase. Anything
else (uppercase, mixed-case) is an upstream protocol mismatch and we
keep the event rather than filter it on a fuzzy match."
(let ((calendar-sync-skip-declined t)
(events (list (list :uid "a" :status "Declined")
(list :uid "b" :status "DECLINED"))))
(should (= 2 (length (calendar-sync--filter-declined events))))))
;;; Error Cases
(ert-deftest test-calendar-sync--filter-declined-error-nil-input ()
"Error: nil input returns nil (no crash)."
(let ((calendar-sync-skip-declined t))
(should (null (calendar-sync--filter-declined nil)))))
(provide 'test-calendar-sync--filter-declined)
;;; test-calendar-sync--filter-declined.el ends here
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