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+;;; test-pearl-delete.el --- Tests for deleting an issue -*- lexical-binding: t; -*-
+
+;; Copyright (C) 2026 Craig Jennings
+
+;; Author: Craig Jennings <c@cjennings.net>
+
+;; This program is free software: you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
+
+;; This program is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+;;; Commentary:
+
+;; Tests for `pearl--delete-issue-async' (the issueDelete mutation,
+;; stubbed) and `pearl-delete-current-issue', which confirms, deletes,
+;; and removes the issue subtree from the buffer on success.
+
+;;; Code:
+
+(require 'test-bootstrap (expand-file-name "test-bootstrap.el"))
+(require 'testutil-request (expand-file-name "testutil-request.el"))
+(require 'cl-lib)
+
+(defmacro test-pearl--in-org (content &rest body)
+  "Run BODY in an org-mode temp buffer holding CONTENT at point-min."
+  (declare (indent 1))
+  `(with-temp-buffer
+     (insert ,content)
+     (org-mode)
+     (goto-char (point-min))
+     ,@body))
+
+;;; --delete-issue-async
+
+(ert-deftest test-pearl-delete-issue-async-success ()
+  "A successful issueDelete reports success."
+  (testutil-linear-with-response
+      '((data (issueDelete (success . t))))
+    (let (result)
+      (pearl--delete-issue-async "id-1" (lambda (r) (setq result r)))
+      (should (eq t (plist-get result :success))))))
+
+(ert-deftest test-pearl-delete-issue-async-soft-fail ()
+  "A non-success issueDelete reports failure rather than erroring."
+  (testutil-linear-with-response
+      '((data (issueDelete (success . :json-false))))
+    (let ((called nil) result)
+      (pearl--delete-issue-async "id-1" (lambda (r) (setq called t result r)))
+      (should called)
+      (should-not (plist-get result :success)))))
+
+;;; delete-current-issue
+
+(ert-deftest test-pearl-delete-current-issue-confirmed-removes-subtree ()
+  "Confirming the delete removes the issue subtree from the buffer."
+  (test-pearl--in-org
+      "* Header\n\n*** TODO ENG-1 Doomed\n:PROPERTIES:\n:LINEAR-ID: a\n:LINEAR-IDENTIFIER: ENG-1\n:END:\nbody\n*** TODO ENG-2 Survivor\n:PROPERTIES:\n:LINEAR-ID: b\n:END:\n"
+    (cl-letf (((symbol-function 'yes-or-no-p) (lambda (&rest _) t))
+              ((symbol-function 'pearl--delete-issue-async)
+               (lambda (_id cb) (funcall cb '(:success t)))))
+      (re-search-forward "Doomed")
+      (pearl-delete-current-issue)
+      (goto-char (point-min))
+      (should-not (re-search-forward "Doomed" nil t))
+      ;; the sibling issue is untouched
+      (goto-char (point-min))
+      (should (re-search-forward "Survivor" nil t)))))
+
+(ert-deftest test-pearl-delete-current-issue-declined-keeps-subtree ()
+  "Declining the confirmation makes no API call and leaves the subtree."
+  (let ((called nil))
+    (test-pearl--in-org
+        "*** TODO ENG-1 Keepme\n:PROPERTIES:\n:LINEAR-ID: a\n:END:\nbody\n"
+      (cl-letf (((symbol-function 'yes-or-no-p) (lambda (&rest _) nil))
+                ((symbol-function 'pearl--delete-issue-async)
+                 (lambda (&rest _) (setq called t))))
+        (pearl-delete-current-issue)
+        (should-not called)
+        (goto-char (point-min))
+        (should (re-search-forward "Keepme" nil t))))))
+
+(ert-deftest test-pearl-delete-current-issue-not-on-issue-errors ()
+  "Deleting outside a Linear issue heading signals a user error."
+  (test-pearl--in-org "* Plain heading\nno id\n"
+    (cl-letf (((symbol-function 'yes-or-no-p) (lambda (&rest _) t)))
+      (should-error (pearl-delete-current-issue) :type 'user-error))))
+
+(provide 'test-pearl-delete)
+;;; test-pearl-delete.el ends here