diff --git a/.docker-compose/Dockerfile b/.docker-compose/Dockerfile
index b8715c1..65e1df4 100644
--- a/.docker-compose/Dockerfile
+++ b/.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
diff --git a/Dockerfile b/Dockerfile
index c41c12d..cbdd950 100644
--- a/Dockerfile
+++ b/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
diff --git a/app/test/test_example.py b/app/test/test_example.py
new file mode 100644
index 0000000..443721e
--- /dev/null
+++ b/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
\ No newline at end of file