|
| 1 | +from os.path import exists |
| 2 | +from os.path import join |
| 3 | + |
| 4 | +import numpy as np |
| 5 | + |
| 6 | +from sklearn.utils.testing import SkipTest |
| 7 | +from sklearn.utils.testing import check_skip_network |
| 8 | +from sklearn.datasets import get_data_home |
| 9 | +from sklearn.utils.testing import install_mldata_mock |
| 10 | +from sklearn.utils.testing import uninstall_mldata_mock |
| 11 | + |
| 12 | + |
| 13 | +def setup_labeled_faces(): |
| 14 | + data_home = get_data_home() |
| 15 | + if not exists(join(data_home, 'lfw_home')): |
| 16 | + raise SkipTest("Skipping dataset loading doctests") |
| 17 | + |
| 18 | + |
| 19 | +def setup_mldata(): |
| 20 | + # setup mock urllib2 module to avoid downloading from mldata.org |
| 21 | + install_mldata_mock({ |
| 22 | + 'mnist-original': { |
| 23 | + 'data': np.empty((70000, 784)), |
| 24 | + 'label': np.repeat(np.arange(10, dtype='d'), 7000), |
| 25 | + }, |
| 26 | + 'iris': { |
| 27 | + 'data': np.empty((150, 4)), |
| 28 | + }, |
| 29 | + 'datasets-uci-iris': { |
| 30 | + 'double0': np.empty((150, 4)), |
| 31 | + 'class': np.empty((150,)), |
| 32 | + }, |
| 33 | + }) |
| 34 | + |
| 35 | + |
| 36 | +def teardown_mldata(): |
| 37 | + uninstall_mldata_mock() |
| 38 | + |
| 39 | + |
| 40 | +def setup_rcv1(): |
| 41 | + check_skip_network() |
| 42 | + # skip the test in rcv1.rst if the dataset is not already loaded |
| 43 | + rcv1_dir = join(get_data_home(), "RCV1") |
| 44 | + if not exists(rcv1_dir): |
| 45 | + raise SkipTest("Download RCV1 dataset to run this test.") |
| 46 | + |
| 47 | + |
| 48 | +def setup_twenty_newsgroups(): |
| 49 | + data_home = get_data_home() |
| 50 | + if not exists(join(data_home, '20news_home')): |
| 51 | + raise SkipTest("Skipping dataset loading doctests") |
| 52 | + |
| 53 | + |
| 54 | +def setup_working_with_text_data(): |
| 55 | + check_skip_network() |
| 56 | + |
| 57 | + |
| 58 | +def pytest_runtest_setup(item): |
| 59 | + fname = item.fspath.strpath |
| 60 | + if fname.endswith('datasets/labeled_faces.rst'): |
| 61 | + setup_labeled_faces() |
| 62 | + elif fname.endswith('datasets/mldata.rst'): |
| 63 | + setup_mldata() |
| 64 | + elif fname.endswith('datasets/rcv1.rst'): |
| 65 | + setup_rcv1() |
| 66 | + elif fname.endswith('datasets/twenty_newsgroups.rst'): |
| 67 | + setup_twenty_newsgroups() |
| 68 | + elif fname.endswith('datasets/working_with_text_data.rst'): |
| 69 | + setup_working_with_text_data() |
| 70 | + |
| 71 | + |
| 72 | +def pytest_runtest_teardown(item): |
| 73 | + fname = item.fspath.strpath |
| 74 | + if fname.endswith('datasets/mldata.rst'): |
| 75 | + teardown_mldata() |
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