More test coverage, remove unused functions from editor.py

tests/test_search_edges.py

@@ -0,0 +1,48 @@
+import os
+import tempfile
+from PySide6.QtWidgets import QApplication
+import pytest
+
+from bouquin.db import DBConfig, DBManager
+from bouquin.search import Search
+
+@pytest.fixture(scope="module")
+def app():
+    # Ensure a single QApplication exists
+    a = QApplication.instance()
+    if a is None:
+        a = QApplication([])
+    yield a
+
+@pytest.fixture
+def fresh_db(tmp_path):
+    cfg = DBConfig(path=tmp_path / "test.db", key="testkey")
+    db = DBManager(cfg)
+    assert db.connect() is True
+    # Seed a couple of entries
+    db.save_new_version("2025-01-01", "<p>Hello world first day</p>")
+    db.save_new_version("2025-01-02", "<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit.</p>")
+    db.save_new_version("2025-01-03", "<p>Long content begins " + ("x"*200) + " middle token here " + ("y"*200) + " ends.</p>")
+    return db
+
+def test_search_exception_path_closed_db_triggers_quiet_handling(app, fresh_db, qtbot):
+    # Close the DB to provoke an exception inside Search._search
+    fresh_db.close()
+    w = Search(fresh_db)
+    w.show()
+    qtbot.addWidget(w)
+
+    # Typing should not raise; exception path returns empty results
+    w._search("anything")
+    assert w.results.isHidden()  # remains hidden because there are no rows
+    # Also, the "resultDatesChanged" signal should emit an empty list (coverage on that branch)
+
+def test_make_html_snippet_ellipses_both_sides(app, fresh_db):
+    w = Search(fresh_db)
+    # Choose a query so that the first match sits well inside a long string,
+    # forcing both left and right ellipses.
+    html = fresh_db.get_entry("2025-01-03")
+    snippet, left_ell, right_ell = w._make_html_snippet(html, "middle")
+    assert snippet  # non-empty
+    assert left_ell is True
+    assert right_ell is True