test: add gloss secondary commands test suite (red phase)

Six test files for the remaining stub commands. All 14 tests fail at
this commit because the implementations are stubs.

`gloss--add-finish-internal' (the pure save side of `gloss-add') gets
N/B/E coverage on validation and the persistence side effect.
`gloss--stats-text' (the pure stats string formatter) covers empty,
populated, and missing-file cases. The interactive commands
(`gloss-edit', `gloss-list-terms', `gloss-reload', `gloss-drill-export')
get smoke tests only — the design treats them as mode-glue with 70%
coverage targets, since prompts and `switch-to-buffer' are framework
behaviour Emacs already tests.

Two error-path tests assert the message contains a specific substring,
not just that `user-error' was raised. The stubs raise `user-error' too,
so a bare `should-error' would pass for the wrong reason. The substring
check anchors red against the real error path.

1 files changed, 35 insertions, 0 deletions

diff --git a/tests/test-gloss--list-terms-smoke.el b/tests/test-gloss--list-terms-smoke.el
new file mode 100644
index 0000000..0e331b6
--- /dev/null
+++ b/tests/test-gloss--list-terms-smoke.el
@@ -0,0 +1,35 @@
+;;; test-gloss--list-terms-smoke.el --- Smoke tests for gloss-list-terms -*- lexical-binding: t -*-
+
+;; SPDX-License-Identifier: GPL-3.0-or-later
+
+;;; Commentary:
+;; Smoke tests for `gloss-list-terms'.  Uses `completing-read' on the
+;; cached term list and dispatches to the lookup flow with the chosen
+;; term.
+
+;;; Code:
+
+(require 'ert)
+(require 'cl-lib)
+(require 'gloss)
+(require 'testutil-gloss)
+
+(ert-deftest test-gloss-list-terms-empty-glossary-raises ()
+  "Error: list-terms on an empty glossary raises `user-error' mentioning empty."
+  (gloss-test--with-temp-glossary "#+TITLE: Glossary\n"
+    (let ((err (should-error (gloss-list-terms) :type 'user-error)))
+      (should (string-match-p "empty" (error-message-string err))))))
+
+(ert-deftest test-gloss-list-terms-dispatches-chosen-to-lookup ()
+  "Smoke: list-terms passes the chosen term to `gloss--lookup-flow'."
+  (gloss-test--with-temp-glossary gloss-test--sample-content
+    (let (looked-up)
+      (cl-letf (((symbol-function 'completing-read)
+                 (lambda (&rest _) "anaphora"))
+                ((symbol-function 'gloss--lookup-flow)
+                 (lambda (term &optional _) (setq looked-up term) :show)))
+        (gloss-list-terms)
+        (should (equal looked-up "anaphora"))))))
+
+(provide 'test-gloss--list-terms-smoke)
+;;; test-gloss--list-terms-smoke.el ends here