test framework and example test added

.docker-compose/Dockerfile

@@ -7,6 +7,7 @@ RUN python -m pip install pydantic
 RUN python -m pip install daemonize
 RUN python -m pip install sqspy
 RUN python -m pip install -U pytest
+RUN python -m pip install pytest-spec
 
 RUN mkdir /app
 WORKDIR /app

Dockerfile

@@ -7,6 +7,7 @@ RUN python -m pip install pydantic
 RUN python -m pip install daemonize
 RUN python -m pip install sqspy
 RUN python -m pip install -U pytest
+RUN python -m pip install pytest-spec
 
 RUN mkdir /app
 WORKDIR /app

app/test/test_example.py

@@ -0,0 +1,7 @@
+# content of example.py
+def func(x):
+    return x + 1
+
+
+def test_answer():
+    assert func(3) == 5