Merge branch '56-test-userclass' into dev

Author: greenrobot

tests/test_userclass.py

@@ -0,0 +1,45 @@
+from objectbox import *
+from objectbox.model import *
+
+
+def test_userclass():
+    @Entity(id=1, uid=1)
+    class Person:
+        id = Id(id=1, uid=1001)
+        firstName = Property(str, id=2, uid=1002)
+        lastName = Property(str, id=3, uid=1003)
+
+        def __init__(self):
+            self.counter = 0
+
+        def fullname(self):
+            return f"{self.firstName} {self.lastName}"
+
+        def tick(self):
+            self.counter += 1
+
+    model = Model()
+    model.entity(Person, last_property_id=IdUid(3, 1003))
+    model.last_entity_id = IdUid(1, 1)
+    dbpath = "testdb"
+    Store.remove_db_files(dbpath)
+
+    store = Store(model=model, directory=dbpath)
+    box = store.box(Person)
+    id_alice = box.put(Person(firstName="Alice", lastName="Adkinson"))
+    box.put(Person(firstName="Bob", lastName="Bowman"))
+    box.put(Person(firstName="Cydia", lastName="Cervesa"))
+    assert box.count() == 3
+    alice = box.get(id_alice)
+    assert alice.fullname() == "Alice Adkinson"
+    assert alice.counter == 0
+    alice.tick()
+    alice.tick()
+    assert alice.counter == 2
+
+    alice = box.get(id_alice)
+    assert alice.counter == 0
+
+    id_empty = box.put(Person())
+    empty = box.get(id_empty)
+    assert empty.fullname() == " "