Begin tests

tests/test_registry.py

@@ -0,0 +1,22 @@
+import dramatiq
+from dramatiq.registry import Registry
+
+
+def test_registry_can_be_declared():
+
+    reg = Registry()
+
+
+def test_actor_can_be_declared_on_registry():
+    # When I have a Registry
+    reg = Registry()
+
+    # Given that I've decorated a function with @registry.actor
+    @reg.actor
+    def add(x, y):
+        return x + y
+
+    # I expect that function to become an instance of Actor
+    assert isinstance(add, dramatiq.Actor)
+    assert add.broker is reg
+    assert len(reg.actors) == 1