Various tweaks to theme, more code coverage

tests/test_search_unit.py

@@ -0,0 +1,57 @@
+from PySide6.QtCore import Qt
+from PySide6.QtWidgets import QListWidgetItem
+
+# The widget class is named `Search` in bouquin.search
+from bouquin.search import Search as SearchWidget
+
+
+class FakeDB:
+    def __init__(self, rows):
+        self.rows = rows
+
+    def search_entries(self, q):
+        return list(self.rows)
+
+
+def test_search_empty_clears_and_hides(qtbot):
+    w = SearchWidget(db=FakeDB([]))
+    qtbot.addWidget(w)
+    w.show()
+    qtbot.waitExposed(w)
+    dates = []
+    w.resultDatesChanged.connect(lambda ds: dates.extend(ds))
+    w._search("   ")
+    assert w.results.isHidden()
+    assert dates == []
+
+
+def test_populate_empty_hides(qtbot):
+    w = SearchWidget(db=FakeDB([]))
+    qtbot.addWidget(w)
+    w._populate_results("x", [])
+    assert w.results.isHidden()
+
+
+def test_open_selected_emits_when_present(qtbot):
+    w = SearchWidget(db=FakeDB([]))
+    qtbot.addWidget(w)
+    got = {}
+    w.openDateRequested.connect(lambda d: got.setdefault("d", d))
+    it = QListWidgetItem("x")
+    it.setData(Qt.ItemDataRole.UserRole, "")
+    w._open_selected(it)
+    assert "d" not in got
+    it.setData(Qt.ItemDataRole.UserRole, "2025-01-02")
+    w._open_selected(it)
+    assert got["d"] == "2025-01-02"
+
+
+def test_make_html_snippet_edge_cases(qtbot):
+    w = SearchWidget(db=FakeDB([]))
+    qtbot.addWidget(w)
+    # Empty HTML -> empty fragment, no ellipses
+    frag, l, r = w._make_html_snippet("", "hello")
+    assert frag == "" and not l and not r
+    # Small doc around token -> should not show ellipses
+    frag, l, r = w._make_html_snippet("<p>Hello world</p>", "world")
+    assert "<b>world</b>" in frag or "world" in frag