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+;;; test-gloss--stats-text.el --- Tests for gloss--stats-text -*- lexical-binding: t -*-
+
+;; SPDX-License-Identifier: GPL-3.0-or-later
+
+;;; Commentary:
+;; Tests for the pure helper `gloss--stats-text' which formats a
+;; multi-line stats summary. Drill-tagged count walks the org file via
+;; the same primitives as `gloss-drill', so this also indirectly
+;; exercises that integration.
+
+;;; Code:
+
+(require 'ert)
+(require 'gloss)
+(require 'testutil-gloss)
+
+(ert-deftest test-gloss-stats-text-empty-glossary-reports-zero ()
+  "Boundary: empty glossary file reports zero terms."
+  (gloss-test--with-temp-glossary "#+TITLE: Glossary\n#+STARTUP: showall\n"
+    (let ((text (gloss--stats-text)))
+      (should (string-match-p "Total terms: +0" text))
+      (should (string-match-p "Drill-tagged: +0" text)))))
+
+(ert-deftest test-gloss-stats-text-populated-glossary-counts-terms ()
+  "Normal: populated glossary reports total terms and source breakdown."
+  (gloss-test--with-temp-glossary gloss-test--sample-content
+    (let ((text (gloss--stats-text)))
+      (should (string-match-p "Total terms: +2" text))
+      (should (string-match-p "wiktionary=2" text))
+      (should (string-match-p "File size:" text))
+      (should (string-match-p "Cache mtime:" text)))))
+
+(ert-deftest test-gloss-stats-text-missing-file-reports-zero-and-never ()
+  "Error: missing glossary file reports zero terms and \"never\" mtime."
+  (gloss-test--with-missing-glossary
+    (let ((text (gloss--stats-text)))
+      (should (string-match-p "Total terms: +0" text)))))
+
+(provide 'test-gloss--stats-text)
+;;; test-gloss--stats-text.el ends here