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diff --git a/tests/testutil-gloss-drill.el b/tests/testutil-gloss-drill.el
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+;;; 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