fix: unit testing and linting (#55)

* fix: poetry.lock dependencies

* fix(tests): namespace of imported brick

* fix(CircleCI): run tests on build

Author: DavidVujic

.circleci/config.yml

@@ -3,7 +3,7 @@ orbs:
   python: circleci/[email protected]
 
 jobs:
-  lint:
+  test:
     executor:
       name: python/default
       tag: "3.8"
@@ -16,9 +16,10 @@ jobs:
             python --version
             poetry run flake8
             poetry run mypy .
-          name: Linting
+            poetry run pytest
+          name: Linting and testing
 
 workflows:
   main:
     jobs:
-      - lint
+      - test