import os
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import pytest
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import pandas
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import numpy as np
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import pandas as pd
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from pandas.compat import PY3
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import pandas.util._test_decorators as td
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def pytest_addoption(parser):
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parser.addoption("--skip-slow", action="store_true",
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help="skip slow tests")
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parser.addoption("--skip-network", action="store_true",
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help="skip network tests")
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parser.addoption("--run-high-memory", action="store_true",
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help="run high memory tests")
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parser.addoption("--only-slow", action="store_true",
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help="run only slow tests")
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parser.addoption("--strict-data-files", action="store_true",
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help="Fail if a test is skipped for missing data file.")
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def pytest_runtest_setup(item):
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if 'slow' in item.keywords and item.config.getoption("--skip-slow"):
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pytest.skip("skipping due to --skip-slow")
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if 'slow' not in item.keywords and item.config.getoption("--only-slow"):
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pytest.skip("skipping due to --only-slow")
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if 'network' in item.keywords and item.config.getoption("--skip-network"):
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pytest.skip("skipping due to --skip-network")
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if 'high_memory' in item.keywords and not item.config.getoption(
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"--run-high-memory"):
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pytest.skip(
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"skipping high memory test since --run-high-memory was not set")
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# Configurations for all tests and all test modules
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@pytest.fixture(autouse=True)
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def configure_tests():
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pd.set_option('chained_assignment', 'raise')
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# For running doctests: make np and pd names available
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@pytest.fixture(autouse=True)
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def add_imports(doctest_namespace):
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doctest_namespace['np'] = np
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doctest_namespace['pd'] = pd
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@pytest.fixture(params=['bsr', 'coo', 'csc', 'csr', 'dia', 'dok', 'lil'])
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def spmatrix(request):
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from scipy import sparse
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return getattr(sparse, request.param + '_matrix')
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@pytest.fixture
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def ip():
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"""
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Get an instance of IPython.InteractiveShell.
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Will raise a skip if IPython is not installed.
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"""
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pytest.importorskip('IPython', minversion="6.0.0")
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from IPython.core.interactiveshell import InteractiveShell
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return InteractiveShell()
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@pytest.fixture(params=[True, False, None])
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def observed(request):
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""" pass in the observed keyword to groupby for [True, False]
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This indicates whether categoricals should return values for
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values which are not in the grouper [False / None], or only values which
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appear in the grouper [True]. [None] is supported for future compatiblity
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if we decide to change the default (and would need to warn if this
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parameter is not passed)"""
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return request.param
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_all_arithmetic_operators = ['__add__', '__radd__',
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'__sub__', '__rsub__',
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'__mul__', '__rmul__',
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'__floordiv__', '__rfloordiv__',
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'__truediv__', '__rtruediv__',
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'__pow__', '__rpow__']
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if not PY3:
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_all_arithmetic_operators.extend(['__div__', '__rdiv__'])
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@pytest.fixture(params=_all_arithmetic_operators)
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def all_arithmetic_operators(request):
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"""
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Fixture for dunder names for common arithmetic operations
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"""
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return request.param
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@pytest.fixture(params=[None, 'gzip', 'bz2', 'zip',
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pytest.param('xz', marks=td.skip_if_no_lzma)])
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def compression(request):
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"""
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Fixture for trying common compression types in compression tests
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"""
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return request.param
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@pytest.fixture(params=['gzip', 'bz2', 'zip',
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pytest.param('xz', marks=td.skip_if_no_lzma)])
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def compression_only(request):
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"""
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Fixture for trying common compression types in compression tests excluding
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uncompressed case
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"""
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return request.param
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@pytest.fixture(scope='module')
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def datetime_tz_utc():
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from datetime import timezone
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return timezone.utc
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@pytest.fixture(params=['inner', 'outer', 'left', 'right'])
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def join_type(request):
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"""
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Fixture for trying all types of join operations
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"""
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return request.param
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@pytest.fixture
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def datapath(request):
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"""Get the path to a data file.
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Parameters
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----------
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path : str
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Path to the file, relative to ``pandas/tests/``
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Returns
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-------
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path : path including ``pandas/tests``.
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Raises
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------
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ValueError
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If the path doesn't exist and the --strict-data-files option is set.
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"""
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def deco(*args):
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path = os.path.join('pandas', 'tests', *args)
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if not os.path.exists(path):
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if request.config.getoption("--strict-data-files"):
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msg = "Could not find file {} and --strict-data-files is set."
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raise ValueError(msg.format(path))
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else:
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msg = "Could not find {}."
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pytest.skip(msg.format(path))
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return path
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return deco
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@pytest.fixture
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def iris(datapath):
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"""The iris dataset as a DataFrame."""
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return pandas.read_csv(datapath('data', 'iris.csv'))
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@pytest.fixture(params=['nlargest', 'nsmallest'])
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def nselect_method(request):
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"""
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Fixture for trying all nselect methods
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"""
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return request.param
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@pytest.fixture(params=[None, np.nan, pd.NaT, float('nan'), np.float('NaN')])
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def nulls_fixture(request):
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"""
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Fixture for each null type in pandas
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"""
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return request.param
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nulls_fixture2 = nulls_fixture # Generate cartesian product of nulls_fixture
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TIMEZONES = [None, 'UTC', 'US/Eastern', 'Asia/Tokyo', 'dateutil/US/Pacific']
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@td.parametrize_fixture_doc(str(TIMEZONES))
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@pytest.fixture(params=TIMEZONES)
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def tz_naive_fixture(request):
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"""
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Fixture for trying timezones including default (None): {0}
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"""
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return request.param
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@td.parametrize_fixture_doc(str(TIMEZONES[1:]))
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@pytest.fixture(params=TIMEZONES[1:])
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def tz_aware_fixture(request):
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"""
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Fixture for trying explicit timezones: {0}
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"""
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return request.param
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@pytest.fixture(params=[str, 'str', 'U'])
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def string_dtype(request):
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"""Parametrized fixture for string dtypes.
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* str
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* 'str'
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* 'U'
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"""
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return request.param
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@pytest.fixture(params=["float32", "float64"])
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def float_dtype(request):
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"""
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Parameterized fixture for float dtypes.
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* float32
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* float64
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"""
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return request.param
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UNSIGNED_INT_DTYPES = ["uint8", "uint16", "uint32", "uint64"]
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SIGNED_INT_DTYPES = ["int8", "int16", "int32", "int64"]
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ALL_INT_DTYPES = UNSIGNED_INT_DTYPES + SIGNED_INT_DTYPES
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@pytest.fixture(params=SIGNED_INT_DTYPES)
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def sint_dtype(request):
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"""
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Parameterized fixture for signed integer dtypes.
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* int8
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* int16
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* int32
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* int64
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"""
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return request.param
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@pytest.fixture(params=UNSIGNED_INT_DTYPES)
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def uint_dtype(request):
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"""
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Parameterized fixture for unsigned integer dtypes.
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* uint8
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* uint16
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* uint32
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* uint64
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"""
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return request.param
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@pytest.fixture(params=ALL_INT_DTYPES)
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def any_int_dtype(request):
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"""
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Parameterized fixture for any integer dtypes.
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* int8
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* uint8
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* int16
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* uint16
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* int32
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* uint32
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* int64
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* uint64
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"""
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return request.param
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