Add basic test configuration.

Add test for app.py.
Modified CI to run tests.

.github/workflows/parser_ci.yml

@@ -20,7 +20,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ["3.8", "3.9", "3.10", "3.11"]
+        python-version: [ "3.8", "3.9", "3.10", "3.11", "3.12" ]
 
     steps:
     - uses: actions/checkout@v3
@@ -57,16 +57,15 @@ jobs:
         file_name="nx.html"
         [[ -f ./$file_name ]] && echo "$file_name created - OK" || exit 1
 
-    - name: Run app.py server
-      run: |
-        python app.py &
-    - name: Check that the server is reachable
-      run: |
-        head=$(curl --head http://127.0.0.1:8050/ | head -n 1)
-        [[ $head = *"200 OK"* ]] && echo "$head" || exit 1
+    - name: Prepare for tests
+      run: pip install -r requirements_test.txt
+
+    - name: Run pytest
+      run: pytest .
 
   do_something_else:
     runs-on: ubuntu-latest
     needs: test_parser
     steps:
-    - run: echo "Doing something else"
+      - name: Do something else
+        run: echo "Doing something else"

.gitignore

@@ -1,7 +1,7 @@
 file.*
-*test*
+*test
 conf/conf.env
-__pycache__
+*__pycache__
 certs/*
 output.*
 graph.py
@@ -13,3 +13,4 @@ tmp
 .vscode
 *.log
 .ropeproject
+*cache*

requirements_test.txt

@@ -0,0 +1 @@
+pytest

tests/test_app.py

@@ -0,0 +1,14 @@
+import pytest
+
+# Assuming the Dash app is initialized in a file named app.py and the server is an attribute of the app
+from app import app
+
+
+@pytest.fixture(scope='module')
+def client():
+    return app.server.test_client()
+
+def test_server_is_up_and_running(client):
+    response = client.head('http://127.0.0.1:8050/')
+    assert response.status_code == 200
+