Add verifications for nodes and SF network

.github/workflows/run-verifications_random.yml

@@ -1,4 +1,4 @@
-name: Run Python verifications (flaky due to random numbers)
+name: Run Python verifications involves random route choice and node (flaky)
 
 on:
   push:
@@ -22,3 +22,4 @@ jobs:
       run: pip install pytest pytest-rerunfailures setuptools
     - name: Run verifications with pytest
       run: pytest tests/test_verification_route_choice.py --durations=0 -v
+      run: pytest tests/test_verification_node.py --durations=0 -v

.github/workflows/run-verifications_sioux_falls.yml

@@ -0,0 +1,24 @@
+name: Run Python verifications in Sioux Falls network (flaky)
+
+on:
+  push:
+  pull_request:
+  workflow_dispatch:
+  schedule:
+    - cron: '0 6 * * 1'
+
+jobs:
+  run-verifications-random:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+    - name: Set up Python 3.12
+      uses: actions/setup-python@v5
+      with:
+        python-version: "3.12"
+    - name: Install uxsim and dependencies
+      run: pip install .
+    - name: Install pytest other dependencies
+      run: pip install pytest pytest-rerunfailures setuptools
+    - name: Run verifications with pytest
+      run: pytest tests/test_verification_sioux_falls.py --durations=0 -v

tests/dat/README.md

@@ -0,0 +1,5 @@
+Scenario data.
+
+Source:
+siouxfalls_* are derived from Transportation Networks for Research https://github.com/bstabler/TransportationNetworks by Transportation Networks for Research Core Team.
+tokyo_arterial_* are derived from OpenStreetMap https://www.openstreetmap.org/.