From e7938e9193ba1a39aab0e614bb3bf682508685b2 Mon Sep 17 00:00:00 2001
From: Craig Jennings <c@cjennings.net>
Date: Thu, 30 Apr 2026 00:28:29 -0500
Subject: test: add gloss-drill test suite (red phase)

Four test files plus a small testutil for toggling the `org-drill'
feature flag. All 10 tests fail at this commit because the implementation
is still a stub.

The suite covers Normal (untagged entries get the tag and property),
Boundary (empty file, idempotency, untag never-tagged), and Error
(org-drill not installed). The error path also asserts the file is left
untouched. Untag-all is tested under both feature states because the
user might want to remove tags after uninstalling org-drill.
---
 tests/testutil-gloss-drill.el | 40 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 tests/testutil-gloss-drill.el

(limited to 'tests/testutil-gloss-drill.el')

diff --git a/tests/testutil-gloss-drill.el b/tests/testutil-gloss-drill.el
new file mode 100644
index 0000000..721922c
--- /dev/null
+++ b/tests/testutil-gloss-drill.el
@@ -0,0 +1,40 @@
+;;; testutil-gloss-drill.el --- Shared test fixtures for gloss-drill -*- lexical-binding: t -*-
+
+;; SPDX-License-Identifier: GPL-3.0-or-later
+
+;;; Commentary:
+
+;; Fixtures used across `gloss-drill' test files.  Provides:
+;;   - `gloss-test--with-org-drill-feature' macro to register `org-drill'
+;;     as a feature for the duration of BODY (without actually loading it).
+
+;;; Code:
+
+(defmacro gloss-test--with-org-drill-feature (&rest body)
+  "Run BODY with `org-drill' provided as a feature.
+Restores the prior feature state on exit so tests can both assert
+\"org-drill present\" and \"org-drill absent\" behaviour without leaking
+state across the suite."
+  (declare (indent 0) (debug t))
+  `(let ((had-org-drill (featurep 'org-drill)))
+     (unwind-protect
+         (progn
+           (provide 'org-drill)
+           ,@body)
+       (unless had-org-drill
+         (setq features (delq 'org-drill features))))))
+
+(defmacro gloss-test--without-org-drill-feature (&rest body)
+  "Run BODY with `org-drill' un-registered as a feature.
+Restores the prior feature state on exit."
+  (declare (indent 0) (debug t))
+  `(let ((had-org-drill (featurep 'org-drill)))
+     (unwind-protect
+         (progn
+           (setq features (delq 'org-drill features))
+           ,@body)
+       (when had-org-drill
+         (provide 'org-drill)))))
+
+(provide 'testutil-gloss-drill)
+;;; testutil-gloss-drill.el ends here
-- 
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