docs: add dbgpt_hub usage documents (#955)

dbgpt/datasource/rdbms/tests/test_conn_duckdb.py

@@ -0,0 +1,44 @@
+"""
+    Run unit test with command: pytest dbgpt/datasource/rdbms/tests/test_conn_duckdb.py
+"""
+
+import pytest
+import tempfile
+
+from dbgpt.datasource.rdbms.conn_duckdb import DuckDbConnect
+
+
+@pytest.fixture
+def db():
+    temp_db_file = tempfile.NamedTemporaryFile(delete=False)
+    temp_db_file.close()
+    conn = DuckDbConnect.from_file_path(temp_db_file.name + "duckdb.db")
+    yield conn
+
+
+def test_get_users(db):
+    assert db.get_users() == []
+
+
+def test_get_table_names(db):
+    assert list(db.get_table_names()) == []
+
+
+def test_get_users(db):
+    assert db.get_users() == []
+
+
+def test_get_charset(db):
+    assert db.get_charset() == "UTF-8"
+
+
+def test_get_table_comments(db):
+    assert db.get_table_comments("test") == []
+
+
+def test_table_simple_info(db):
+    assert db.table_simple_info() == []
+
+
+def test_execute(db):
+    assert list(db.run("SELECT 42")[0]) == ["42"]