❯ pytest sklearn/neighbors/tests/test_dist_metrics.py -v
================================================ test session starts ================================================
platform linux -- Python 3.6.2, pytest-3.2.1, py-1.4.34, pluggy-0.4.0 -- /volatile/le243287/miniconda3/bin/python
cachedir: .cache
rootdir: /home/le243287/dev/alt-scikit-learn, inifile: setup.cfg
plugins: cov-2.3.1
collected 4 items                                                                                                    

sklearn/neighbors/tests/test_dist_metrics.py::test_haversine_metric PASSED
sklearn/neighbors/tests/test_dist_metrics.py::test_pyfunc_metric PASSED
sklearn/neighbors/tests/test_dist_metrics.py::test_bad_pyfunc_metric PASSED
sklearn/neighbors/tests/test_dist_metrics.py::test_input_data_size PASSED

================================================= warnings summary ==================================================
sklearn/neighbors/tests/test_dist_metrics.py::TestMetrics
  cannot collect test class 'TestMetrics' because it has a __init__ constructor

-- Docs: http://doc.pytest.org/en/latest/warnings.html
======================================= 4 passed, 1 warnings in 0.56 seconds ========================================