Added helpful kwargs to 'invoke pytest'

Author: joewesch

tasks.py

@@ -169,10 +169,23 @@ def coverage(context):
     run_command(context, "coverage html")
 
 
-@task
-def pytest(context):
+@task(
+    help={
+        "pattern": "Only run tests which match the given substring. Can be used multiple times.",
+        "label": "Module path to run (e.g., tests/unit/test_foo.py). Can be used multiple times.",
+    },
+    iterable=["pattern", "label"],
+)
+def pytest(context, pattern=None, label=None):
     """Run pytest test cases."""
-    exec_cmd = "pytest -vv --doctest-modules netutils/ && coverage run --source=netutils -m pytest && coverage report"
+    doc_test_cmd = "pytest -vv --doctest-modules netutils/"
+    pytest_cmd = "coverage run --source=netutils -m pytest"
+    if pattern:
+        pytest_cmd += "".join([f" -k {_pattern}" for _pattern in pattern])
+    if label:
+        pytest_cmd += "".join([f" {_label}" for _label in label])
+    coverage_cmd = "coverage report"
+    exec_cmd = " && ".join([doc_test_cmd, pytest_cmd, coverage_cmd])
     run_command(context, exec_cmd)