Updating Makefile

Dockerfile

@@ -1,8 +1,10 @@
 FROM python:3.8
 
-COPY . /app
 WORKDIR /app
 
-RUN pip install -U pytest
+COPY requirements.txt /app
+RUN pip install -r requirements.txt
+
+COPY . /app
 
 CMD ["python", "/app/src/app.py"]

Makefile

@@ -2,5 +2,11 @@
 
 default: test
 
-test:
-	PYTHONPATH=/app/tests pytest
+build:
+	docker build -t python-build-cli-planner-app .
+
+test: build
+	docker run -t python-build-cli-planner-app pytest /app/tests/tests.py
+
+start: build
+	docker run -it python-build-cli-planner-app

requirements.txt

@@ -0,0 +1 @@
+pytest==5.4.1

tests/tests.py

@@ -0,0 +1,5 @@
+import unittest
+
+class TestOne(unittest.TestCase):
+    def test_one(self):
+        assert 1+1 == 2