Test to show correct behaviour for using a closed transaction.

Author: srbaker

test/test_session.py

@@ -25,7 +25,7 @@
 
 from neo4j.v1 import \
     GraphDatabase, basic_auth, READ_ACCESS, WRITE_ACCESS, \
-    CypherError, SessionError, \
+    CypherError, SessionError, TransactionError, \
     Node, Relationship, Path
 from neo4j.v1.types import Record
 
@@ -692,3 +692,20 @@ def test_errors_on_run(self):
     def test_errors_on_begin_transaction(self):
         with self.assertRaises(SessionError):
             self.session.begin_transaction()
+
+
+class TransactionCommittedTestCase(ServerTestCase):
+
+    def setUp(self):
+        self.driver = GraphDatabase.driver(BOLT_URI, auth=AUTH_TOKEN)
+        self.session = self.driver.session()
+        self.transaction = self.session.begin_transaction()
+        self.transaction.run("RETURN 1")
+        self.transaction.commit()
+
+    def tearDown(self):
+        self.driver.close()
+
+    def test_errors_on_run(self):
+        with self.assertRaises(TransactionError):
+            self.transaction.run("RETURN 1")