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+;;; test-org-drill-entry-text-limit.el --- Tests for the entry-text line limit  -*- lexical-binding: t; -*-
+
+;;; Commentary:
+;; org-drill-get-entry-text asks org-agenda for at most N lines of an entry's
+;; text.  That limit used to be a hardcoded 100; it is now the defcustom
+;; org-drill-entry-text-max-lines so a user with very long cards can raise it.
+
+;;; Code:
+
+(require 'ert)
+(require 'cl-lib)
+(require 'org-drill)
+
+(ert-deftest test-org-drill-entry-text-max-lines-defaults-to-100 ()
+  "The limit keeps its historical default of 100 lines."
+  (should (eq 100 (default-value 'org-drill-entry-text-max-lines))))
+
+(ert-deftest test-org-drill-get-entry-text-uses-the-custom-limit ()
+  "get-entry-text passes the defcustom value as the line limit, not a
+hardcoded number."
+  (let ((org-drill-entry-text-max-lines 7)
+        (captured nil))
+    (cl-letf (((symbol-function 'org-agenda-get-some-entry-text)
+               (lambda (_marker n &rest _) (setq captured n) "text")))
+      (with-temp-buffer
+        (insert "* Card :drill:\nbody\n")
+        (org-mode)
+        (goto-char (point-min))
+        (org-drill-get-entry-text))
+      (should (eq 7 captured)))))
+
+(provide 'test-org-drill-entry-text-limit)
+
+;;; test-org-drill-entry-text-limit.el ends here