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;;; test-calendar-sync--split-events.el --- Tests for VEVENT block splitter -*- lexical-binding: t; -*-
;;; Commentary:
;; Tests for calendar-sync--split-events.
;; Splits raw .ics content into individual VEVENT block strings.
;;; Code:
(require 'ert)
(require 'testutil-calendar-sync)
(require 'calendar-sync)
;;; Normal Cases
(ert-deftest test-calendar-sync--split-events-normal-single ()
"Single VEVENT returns one-element list."
(let* ((ics "BEGIN:VCALENDAR\nBEGIN:VEVENT\nSUMMARY:Test\nEND:VEVENT\nEND:VCALENDAR")
(result (calendar-sync--split-events ics)))
(should (= 1 (length result)))
(should (string-match-p "SUMMARY:Test" (car result)))))
(ert-deftest test-calendar-sync--split-events-normal-multiple ()
"Multiple VEVENTs return corresponding list."
(let* ((ics (concat "BEGIN:VCALENDAR\n"
"BEGIN:VEVENT\nSUMMARY:First\nEND:VEVENT\n"
"BEGIN:VEVENT\nSUMMARY:Second\nEND:VEVENT\n"
"END:VCALENDAR"))
(result (calendar-sync--split-events ics)))
(should (= 2 (length result)))
(should (string-match-p "First" (nth 0 result)))
(should (string-match-p "Second" (nth 1 result)))))
;;; Boundary Cases
(ert-deftest test-calendar-sync--split-events-boundary-empty-calendar ()
"Calendar with no VEVENTs returns empty list."
(let ((ics "BEGIN:VCALENDAR\nVERSION:2.0\nEND:VCALENDAR"))
(should (null (calendar-sync--split-events ics)))))
(ert-deftest test-calendar-sync--split-events-boundary-preserves-content ()
"Each extracted block contains BEGIN:VEVENT through END:VEVENT."
(let* ((ics "BEGIN:VEVENT\nUID:abc\nSUMMARY:Test\nEND:VEVENT")
(result (calendar-sync--split-events ics)))
(should (string-prefix-p "BEGIN:VEVENT" (car result)))
(should (string-suffix-p "END:VEVENT" (car result)))))
;;; Error Cases
(ert-deftest test-calendar-sync--split-events-error-empty-string ()
"Empty string returns empty list."
(should (null (calendar-sync--split-events ""))))
(provide 'test-calendar-sync--split-events)
;;; test-calendar-sync--split-events.el ends here
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