76 lines
2.2 KiB
Python
76 lines
2.2 KiB
Python
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""" Network tests are only run, if data is already locally available,
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or if download is specifically requested by environment variable."""
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import builtins
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from os import environ
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import pytest
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from sklearn.datasets import fetch_20newsgroups
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from sklearn.datasets import fetch_20newsgroups_vectorized
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from sklearn.datasets import fetch_california_housing
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from sklearn.datasets import fetch_covtype
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from sklearn.datasets import fetch_kddcup99
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from sklearn.datasets import fetch_olivetti_faces
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from sklearn.datasets import fetch_rcv1
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def _wrapped_fetch(f, dataset_name):
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""" Fetch dataset (download if missing and requested by environment) """
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download_if_missing = environ.get('SKLEARN_SKIP_NETWORK_TESTS', '1') == '0'
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def wrapped(*args, **kwargs):
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kwargs['download_if_missing'] = download_if_missing
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try:
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return f(*args, **kwargs)
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except IOError:
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pytest.skip("Download {} to run this test".format(dataset_name))
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return wrapped
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@pytest.fixture
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def fetch_20newsgroups_fxt():
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return _wrapped_fetch(fetch_20newsgroups, dataset_name='20newsgroups')
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@pytest.fixture
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def fetch_20newsgroups_vectorized_fxt():
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return _wrapped_fetch(fetch_20newsgroups_vectorized,
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dataset_name='20newsgroups_vectorized')
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@pytest.fixture
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def fetch_california_housing_fxt():
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return _wrapped_fetch(fetch_california_housing,
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dataset_name='california_housing')
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@pytest.fixture
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def fetch_covtype_fxt():
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return _wrapped_fetch(fetch_covtype, dataset_name='covtype')
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@pytest.fixture
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def fetch_kddcup99_fxt():
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return _wrapped_fetch(fetch_kddcup99, dataset_name='kddcup99')
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@pytest.fixture
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def fetch_olivetti_faces_fxt():
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return _wrapped_fetch(fetch_olivetti_faces, dataset_name='olivetti_faces')
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@pytest.fixture
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def fetch_rcv1_fxt():
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return _wrapped_fetch(fetch_rcv1, dataset_name='rcv1')
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@pytest.fixture
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def hide_available_pandas(monkeypatch):
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""" Pretend pandas was not installed. """
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import_orig = builtins.__import__
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def mocked_import(name, *args, **kwargs):
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if name == 'pandas':
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raise ImportError()
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return import_orig(name, *args, **kwargs)
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monkeypatch.setattr(builtins, '__import__', mocked_import)
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