Fix for novav21 state (aggregates)

- novav21 state should not wipe aggregate hosts from DB if none provided

Prod-Related: PROD-34790
Change-Id: Idd5054cc83d884ae8bb7a579725324a27585c9f4
diff --git a/tests/test-requirements.txt b/tests/test-requirements.txt
new file mode 100644
index 0000000..bc7dc7f
--- /dev/null
+++ b/tests/test-requirements.txt
@@ -0,0 +1,4 @@
+jsonschema
+reno
+setuptools<45.0.0
+msgpack<1.0.0