Merge pull request #1133 from ethho/dev-tests-plat-161-reconn

PLAT-161: Migrate test_reconnection

Author: A-Baji

tests/test_reconnection.py

@@ -0,0 +1,36 @@
+"""
+Collection of test cases to test connection module.
+"""
+
+import pytest
+import datajoint as dj
+from datajoint import DataJointError
+from . import CONN_INFO
+
+
+@pytest.fixture
+def conn(connection_root):
+    return dj.conn(reset=True, **CONN_INFO)
+
+
+class TestReconnect:
+    """
+    Test reconnection
+    """
+
+    def test_close(self, conn):
+        assert conn.is_connected, "Connection should be alive"
+        conn.close()
+        assert not conn.is_connected, "Connection should now be closed"
+
+    def test_reconnect(self, conn):
+        assert conn.is_connected, "Connection should be alive"
+        conn.close()
+        conn.query("SHOW DATABASES;", reconnect=True).fetchall()
+        assert conn.is_connected, "Connection should be alive"
+
+    def test_reconnect_throws_error_in_transaction(self, conn):
+        assert conn.is_connected, "Connection should be alive"
+        with conn.transaction, pytest.raises(DataJointError):
+            conn.close()
+            conn.query("SHOW DATABASES;", reconnect=True).fetchall()