Formulas testing revision 2019/10

Related: PROD-32744
Related: PROD-33634
Related: PROD-33698
Related: PROD-33984

Partial cherry-pick of: https://gerrit.mcp.mirantis.com/#/c/32829/

Change-Id: I7a7da0322bc3e692688bb49c314f101d00fe5590
diff --git a/tests/test-requirements.txt b/tests/test-requirements.txt
new file mode 100644
index 0000000..a0f561a
--- /dev/null
+++ b/tests/test-requirements.txt
@@ -0,0 +1,2 @@
+jsonschema
+reno