fix(deepdoc): keep zero and false Excel cells in __call__ (#16318)

test/unit_test/deepdoc/parser/test_excel_parser.py

@@ -68,6 +68,41 @@ def _chunk_has_no_data_cells(chunk):
     return "<td>" not in chunk and "<td></td>" not in chunk
 
 
+def _make_xlsx_with_zero_and_false():
+    from openpyxl import Workbook
+
+    wb = Workbook()
+    ws = wb.active
+    ws.append(["Amount", "Active"])
+    ws.append([0, False])
+    buf = BytesIO()
+    wb.save(buf)
+    buf.seek(0)
+    return buf.read()
+
+
+@pytest.mark.p2
+def test_call_keeps_zero_and_false_cells():
+    lines = RAGFlowExcelParser()(_make_xlsx_with_zero_and_false())
+    assert len(lines) == 1
+    assert "0" in lines[0]
+    assert "False" in lines[0]
+
+
+@pytest.mark.p2
+def test_call_keeps_empty_string_cells(monkeypatch):
+    from openpyxl import Workbook
+
+    wb = Workbook()
+    ws = wb.active
+    ws.append(["Note"])
+    ws.append([""])
+
+    monkeypatch.setattr(RAGFlowExcelParser, "_load_excel_to_workbook", lambda _file: wb)
+    lines = RAGFlowExcelParser()(b"unused")
+    assert lines == ["Note："]
+
+
 @pytest.mark.p2
 def test_exact_multiple_does_not_emit_header_only_chunk():
     # 12 data rows with chunk_rows=12 (the value rag/app/naive.py uses).