add project structure

tests/test_app.py

@@ -0,0 +1,31 @@
+from pathlib import Path
+
+import app.db as db
+
+
+def test_app_starts(client):
+    response = client.get("/boxes")
+
+    assert response.status_code == 200
+
+
+def test_root_redirects_to_boxes(client):
+    response = client.get("/", follow_redirects=False)
+
+    assert response.status_code == 302
+    assert response.headers["location"] == "/boxes"
+
+
+def test_boxes_page_returns_200(client):
+    response = client.get("/boxes")
+
+    assert response.status_code == 200
+    assert "Boxes page" in response.text
+
+
+def test_tests_use_isolated_sqlite_database(client):
+    assert db.engine is not None
+
+    database_name = Path(db.engine.url.database)
+    assert database_name.name == "test.db"
+    assert "data/app.db" not in str(database_name)