initial commit

test/test_zcm.py

@@ -0,0 +1,109 @@
+#!/usr/bin/python3.5
+# encoding: utf8
+
+"""Test zodb database class"""
+
+from pprint import pprint
+import unittest
+import transaction
+import ZODB.POSException
+
+import zcm
+
+
+FILE = r"..\var\unittest.zodb"
+
+
+class TestContext(unittest.TestCase):
+
+    def test_sync(self):
+        print("sync")
+        db = zcm.database(FILE)
+        cx = db.open()
+        cx.root.one = 2
+        print(cx.root.one)
+        with db.transaction() as cx2:
+            _ = cx2.transaction_manager
+            root = cx2.root()
+            root['one'] = 3
+        transaction.abort()
+        print(cx.root.one)
+        cx.root.one = 4
+        print(cx.root.one)
+        db.close()
+
+    def test_transaction(self):
+        print("transaction")
+        db = zcm.database(FILE)
+        cx = db.open()
+        cx.root.one = 2
+        print(cx.root.one)
+        with db.transaction() as cx2:
+            _ = cx2.transaction_manager
+            root = cx2.root()
+            root['one'] = 3
+        print(cx.root.one)
+        cx.root.one = 4
+        print(cx.root.one)
+        cx3 = db.open()
+        print(cx3.root.one)
+        db.close()
+
+    def test_conflict(self):
+        db = zcm.database(FILE)
+        try:
+            cx = db.open()
+            cx.root.one = 2
+            print(cx.root.one)
+            with db.transaction() as cx2:
+                _ = cx2.transaction_manager
+                root = cx2.root()
+                root['one'] = 3
+            print(cx.root.one)
+            cx.root.one = 4
+            print(cx.root.one)
+            with self.assertRaises(ZODB.POSException.ConflictError):
+                transaction.commit()
+        finally:
+            db.close()
+        db = zcm.database(FILE)
+        cx = db.open()
+        print(cx.root.one)
+        db.close()
+
+    def test_connection(self):
+        db = zcm.database(FILE)
+        txm = transaction.TransactionManager()
+        cx3 = db.open(txm)
+        print(cx3.root.another)
+        cx3.root.another = "no tx"
+        print(cx3.root.another)
+        with txm:
+            cx3.root.another = "object"
+        print(cx3.root.another)
+        db.close()
+
+    def test_default_txm(self):
+        print("default_txm")
+        db = zcm.database(FILE)
+        cx2, root = zcm.connection(db)
+        cx3 = db.open()
+        if cx2.transaction_manager is cx3.transaction_manager:
+            print("cx3 identity")
+        print(root.another)
+        with cx2.transaction_manager:
+            root.another = "more"
+        print(cx3.root.another)
+        with db.transaction() as cx4:
+            cx4.root.another = "other"
+            if cx4.transaction_manager == cx2.transaction_manager:
+                print("cx4 same")
+            else:
+                print("cx4 differs")
+        cx2.transaction_manager.abort()
+        print(root.another)
+        with cx3.transaction_manager:
+            cx3.root.another = "object"
+        print(root.another)
+        print(cx3.root.another)
+        db.close()