initial commit with 2024 materials

testing_project/demos/conftest_example.py

@@ -0,0 +1,28 @@
+import numpy as np
+import pytest
+
+
+# add a commandline option to pytest
+def pytest_addoption(parser):
+    """Add random seed option to py.test.
+    """
+    parser.addoption('--seed', dest='seed', type=int, action='store',
+                     help='set random seed')
+
+
+# configure pytest to automatically set the rnd seed if not passed on CLI
+def pytest_configure(config):
+    seed = config.getvalue("seed")
+    # if seed was not set by the user, we set one now
+    if seed is None or seed == ('NO', 'DEFAULT'):
+        config.option.seed = int(np.random.randint(2 ** 31 - 1))
+
+
+def pytest_report_header(config):
+    return f'Using random seed: {config.option.seed}'
+
+
+@pytest.fixture
+def random_state(request):
+    random_state = np.random.RandomState(request.config.option.seed)
+    return random_state