546 lines
19 KiB
Python
546 lines
19 KiB
Python
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"""
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Nose test running.
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This module implements ``test()`` and ``bench()`` functions for NumPy modules.
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"""
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import os
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import sys
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import warnings
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import numpy as np
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from .utils import import_nose, suppress_warnings
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__all__ = ['get_package_name', 'run_module_suite', 'NoseTester',
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'_numpy_tester', 'get_package_name', 'import_nose',
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'suppress_warnings']
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def get_package_name(filepath):
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"""
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Given a path where a package is installed, determine its name.
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Parameters
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----------
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filepath : str
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Path to a file. If the determination fails, "numpy" is returned.
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Examples
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--------
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>>> np.testing.nosetester.get_package_name('nonsense')
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'numpy'
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"""
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fullpath = filepath[:]
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pkg_name = []
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while 'site-packages' in filepath or 'dist-packages' in filepath:
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filepath, p2 = os.path.split(filepath)
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if p2 in ('site-packages', 'dist-packages'):
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break
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pkg_name.append(p2)
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# if package name determination failed, just default to numpy/scipy
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if not pkg_name:
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if 'scipy' in fullpath:
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return 'scipy'
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else:
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return 'numpy'
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# otherwise, reverse to get correct order and return
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pkg_name.reverse()
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# don't include the outer egg directory
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if pkg_name[0].endswith('.egg'):
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pkg_name.pop(0)
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return '.'.join(pkg_name)
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def run_module_suite(file_to_run=None, argv=None):
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"""
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Run a test module.
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Equivalent to calling ``$ nosetests <argv> <file_to_run>`` from
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the command line
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Parameters
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----------
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file_to_run : str, optional
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Path to test module, or None.
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By default, run the module from which this function is called.
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argv : list of strings
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Arguments to be passed to the nose test runner. ``argv[0]`` is
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ignored. All command line arguments accepted by ``nosetests``
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will work. If it is the default value None, sys.argv is used.
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.. versionadded:: 1.9.0
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Examples
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--------
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Adding the following::
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if __name__ == "__main__" :
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run_module_suite(argv=sys.argv)
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at the end of a test module will run the tests when that module is
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called in the python interpreter.
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Alternatively, calling::
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>>> run_module_suite(file_to_run="numpy/tests/test_matlib.py") # doctest: +SKIP
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from an interpreter will run all the test routine in 'test_matlib.py'.
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"""
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if file_to_run is None:
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f = sys._getframe(1)
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file_to_run = f.f_locals.get('__file__', None)
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if file_to_run is None:
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raise AssertionError
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if argv is None:
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argv = sys.argv + [file_to_run]
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else:
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argv = argv + [file_to_run]
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nose = import_nose()
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from .noseclasses import KnownFailurePlugin
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nose.run(argv=argv, addplugins=[KnownFailurePlugin()])
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class NoseTester:
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"""
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Nose test runner.
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This class is made available as numpy.testing.Tester, and a test function
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is typically added to a package's __init__.py like so::
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from numpy.testing import Tester
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test = Tester().test
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Calling this test function finds and runs all tests associated with the
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package and all its sub-packages.
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Attributes
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----------
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package_path : str
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Full path to the package to test.
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package_name : str
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Name of the package to test.
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Parameters
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----------
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package : module, str or None, optional
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The package to test. If a string, this should be the full path to
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the package. If None (default), `package` is set to the module from
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which `NoseTester` is initialized.
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raise_warnings : None, str or sequence of warnings, optional
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This specifies which warnings to configure as 'raise' instead
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of being shown once during the test execution. Valid strings are:
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- "develop" : equals ``(Warning,)``
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- "release" : equals ``()``, don't raise on any warnings.
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Default is "release".
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depth : int, optional
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If `package` is None, then this can be used to initialize from the
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module of the caller of (the caller of (...)) the code that
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initializes `NoseTester`. Default of 0 means the module of the
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immediate caller; higher values are useful for utility routines that
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want to initialize `NoseTester` objects on behalf of other code.
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"""
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def __init__(self, package=None, raise_warnings="release", depth=0,
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check_fpu_mode=False):
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# Back-compat: 'None' used to mean either "release" or "develop"
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# depending on whether this was a release or develop version of
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# numpy. Those semantics were fine for testing numpy, but not so
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# helpful for downstream projects like scipy that use
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# numpy.testing. (They want to set this based on whether *they* are a
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# release or develop version, not whether numpy is.) So we continue to
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# accept 'None' for back-compat, but it's now just an alias for the
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# default "release".
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if raise_warnings is None:
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raise_warnings = "release"
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package_name = None
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if package is None:
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f = sys._getframe(1 + depth)
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package_path = f.f_locals.get('__file__', None)
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if package_path is None:
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raise AssertionError
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package_path = os.path.dirname(package_path)
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package_name = f.f_locals.get('__name__', None)
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elif isinstance(package, type(os)):
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package_path = os.path.dirname(package.__file__)
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package_name = getattr(package, '__name__', None)
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else:
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package_path = str(package)
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self.package_path = package_path
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# Find the package name under test; this name is used to limit coverage
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# reporting (if enabled).
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if package_name is None:
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package_name = get_package_name(package_path)
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self.package_name = package_name
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# Set to "release" in constructor in maintenance branches.
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self.raise_warnings = raise_warnings
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# Whether to check for FPU mode changes
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self.check_fpu_mode = check_fpu_mode
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def _test_argv(self, label, verbose, extra_argv):
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''' Generate argv for nosetest command
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Parameters
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----------
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label : {'fast', 'full', '', attribute identifier}, optional
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see ``test`` docstring
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verbose : int, optional
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Verbosity value for test outputs, in the range 1-10. Default is 1.
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extra_argv : list, optional
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List with any extra arguments to pass to nosetests.
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Returns
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-------
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argv : list
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command line arguments that will be passed to nose
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'''
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argv = [__file__, self.package_path, '-s']
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if label and label != 'full':
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if not isinstance(label, str):
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raise TypeError('Selection label should be a string')
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if label == 'fast':
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label = 'not slow'
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argv += ['-A', label]
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argv += ['--verbosity', str(verbose)]
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# When installing with setuptools, and also in some other cases, the
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# test_*.py files end up marked +x executable. Nose, by default, does
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# not run files marked with +x as they might be scripts. However, in
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# our case nose only looks for test_*.py files under the package
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# directory, which should be safe.
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argv += ['--exe']
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if extra_argv:
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argv += extra_argv
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return argv
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def _show_system_info(self):
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nose = import_nose()
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import numpy
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print("NumPy version %s" % numpy.__version__)
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relaxed_strides = numpy.ones((10, 1), order="C").flags.f_contiguous
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print("NumPy relaxed strides checking option:", relaxed_strides)
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npdir = os.path.dirname(numpy.__file__)
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print("NumPy is installed in %s" % npdir)
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if 'scipy' in self.package_name:
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import scipy
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print("SciPy version %s" % scipy.__version__)
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spdir = os.path.dirname(scipy.__file__)
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print("SciPy is installed in %s" % spdir)
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pyversion = sys.version.replace('\n', '')
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print("Python version %s" % pyversion)
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print("nose version %d.%d.%d" % nose.__versioninfo__)
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def _get_custom_doctester(self):
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""" Return instantiated plugin for doctests
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Allows subclassing of this class to override doctester
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A return value of None means use the nose builtin doctest plugin
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"""
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from .noseclasses import NumpyDoctest
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return NumpyDoctest()
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def prepare_test_args(self, label='fast', verbose=1, extra_argv=None,
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doctests=False, coverage=False, timer=False):
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"""
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Run tests for module using nose.
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This method does the heavy lifting for the `test` method. It takes all
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the same arguments, for details see `test`.
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See Also
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--------
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test
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"""
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# fail with nice error message if nose is not present
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import_nose()
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# compile argv
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argv = self._test_argv(label, verbose, extra_argv)
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# our way of doing coverage
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if coverage:
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argv += ['--cover-package=%s' % self.package_name, '--with-coverage',
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'--cover-tests', '--cover-erase']
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if timer:
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if timer is True:
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argv += ['--with-timer']
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elif isinstance(timer, int):
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argv += ['--with-timer', '--timer-top-n', str(timer)]
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# construct list of plugins
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import nose.plugins.builtin
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from nose.plugins import EntryPointPluginManager
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from .noseclasses import (KnownFailurePlugin, Unplugger,
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FPUModeCheckPlugin)
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plugins = [KnownFailurePlugin()]
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plugins += [p() for p in nose.plugins.builtin.plugins]
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if self.check_fpu_mode:
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plugins += [FPUModeCheckPlugin()]
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argv += ["--with-fpumodecheckplugin"]
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try:
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# External plugins (like nose-timer)
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entrypoint_manager = EntryPointPluginManager()
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entrypoint_manager.loadPlugins()
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plugins += [p for p in entrypoint_manager.plugins]
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except ImportError:
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# Relies on pkg_resources, not a hard dependency
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pass
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# add doctesting if required
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doctest_argv = '--with-doctest' in argv
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if doctests == False and doctest_argv:
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doctests = True
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plug = self._get_custom_doctester()
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if plug is None:
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# use standard doctesting
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if doctests and not doctest_argv:
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argv += ['--with-doctest']
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else: # custom doctesting
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if doctest_argv: # in fact the unplugger would take care of this
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argv.remove('--with-doctest')
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plugins += [Unplugger('doctest'), plug]
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if doctests:
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argv += ['--with-' + plug.name]
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return argv, plugins
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def test(self, label='fast', verbose=1, extra_argv=None,
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doctests=False, coverage=False, raise_warnings=None,
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timer=False):
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"""
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Run tests for module using nose.
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Parameters
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----------
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label : {'fast', 'full', '', attribute identifier}, optional
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Identifies the tests to run. This can be a string to pass to
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the nosetests executable with the '-A' option, or one of several
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special values. Special values are:
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* 'fast' - the default - which corresponds to the ``nosetests -A``
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option of 'not slow'.
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* 'full' - fast (as above) and slow tests as in the
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'no -A' option to nosetests - this is the same as ''.
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* None or '' - run all tests.
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* attribute_identifier - string passed directly to nosetests as '-A'.
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verbose : int, optional
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Verbosity value for test outputs, in the range 1-10. Default is 1.
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extra_argv : list, optional
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List with any extra arguments to pass to nosetests.
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doctests : bool, optional
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If True, run doctests in module. Default is False.
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coverage : bool, optional
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If True, report coverage of NumPy code. Default is False.
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(This requires the
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`coverage module <https://nedbatchelder.com/code/modules/coveragehtml>`_).
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raise_warnings : None, str or sequence of warnings, optional
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This specifies which warnings to configure as 'raise' instead
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of being shown once during the test execution. Valid strings are:
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* "develop" : equals ``(Warning,)``
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* "release" : equals ``()``, do not raise on any warnings.
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timer : bool or int, optional
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Timing of individual tests with ``nose-timer`` (which needs to be
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installed). If True, time tests and report on all of them.
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If an integer (say ``N``), report timing results for ``N`` slowest
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tests.
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Returns
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-------
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result : object
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Returns the result of running the tests as a
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``nose.result.TextTestResult`` object.
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Notes
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-----
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Each NumPy module exposes `test` in its namespace to run all tests for it.
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For example, to run all tests for numpy.lib:
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>>> np.lib.test() #doctest: +SKIP
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Examples
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||
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--------
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|
|
>>> result = np.lib.test() #doctest: +SKIP
|
||
|
|
Running unit tests for numpy.lib
|
||
|
|
...
|
||
|
|
Ran 976 tests in 3.933s
|
||
|
|
|
||
|
|
OK
|
||
|
|
|
||
|
|
>>> result.errors #doctest: +SKIP
|
||
|
|
[]
|
||
|
|
>>> result.knownfail #doctest: +SKIP
|
||
|
|
[]
|
||
|
|
"""
|
||
|
|
|
||
|
|
# cap verbosity at 3 because nose becomes *very* verbose beyond that
|
||
|
|
verbose = min(verbose, 3)
|
||
|
|
|
||
|
|
from . import utils
|
||
|
|
utils.verbose = verbose
|
||
|
|
|
||
|
|
argv, plugins = self.prepare_test_args(
|
||
|
|
label, verbose, extra_argv, doctests, coverage, timer)
|
||
|
|
|
||
|
|
if doctests:
|
||
|
|
print("Running unit tests and doctests for %s" % self.package_name)
|
||
|
|
else:
|
||
|
|
print("Running unit tests for %s" % self.package_name)
|
||
|
|
|
||
|
|
self._show_system_info()
|
||
|
|
|
||
|
|
# reset doctest state on every run
|
||
|
|
import doctest
|
||
|
|
doctest.master = None
|
||
|
|
|
||
|
|
if raise_warnings is None:
|
||
|
|
raise_warnings = self.raise_warnings
|
||
|
|
|
||
|
|
_warn_opts = dict(develop=(Warning,),
|
||
|
|
release=())
|
||
|
|
if isinstance(raise_warnings, str):
|
||
|
|
raise_warnings = _warn_opts[raise_warnings]
|
||
|
|
|
||
|
|
with suppress_warnings("location") as sup:
|
||
|
|
# Reset the warning filters to the default state,
|
||
|
|
# so that running the tests is more repeatable.
|
||
|
|
warnings.resetwarnings()
|
||
|
|
# Set all warnings to 'warn', this is because the default 'once'
|
||
|
|
# has the bad property of possibly shadowing later warnings.
|
||
|
|
warnings.filterwarnings('always')
|
||
|
|
# Force the requested warnings to raise
|
||
|
|
for warningtype in raise_warnings:
|
||
|
|
warnings.filterwarnings('error', category=warningtype)
|
||
|
|
# Filter out annoying import messages.
|
||
|
|
sup.filter(message='Not importing directory')
|
||
|
|
sup.filter(message="numpy.dtype size changed")
|
||
|
|
sup.filter(message="numpy.ufunc size changed")
|
||
|
|
sup.filter(category=np.ModuleDeprecationWarning)
|
||
|
|
# Filter out boolean '-' deprecation messages. This allows
|
||
|
|
# older versions of scipy to test without a flood of messages.
|
||
|
|
sup.filter(message=".*boolean negative.*")
|
||
|
|
sup.filter(message=".*boolean subtract.*")
|
||
|
|
# Filter out distutils cpu warnings (could be localized to
|
||
|
|
# distutils tests). ASV has problems with top level import,
|
||
|
|
# so fetch module for suppression here.
|
||
|
|
with warnings.catch_warnings():
|
||
|
|
warnings.simplefilter("always")
|
||
|
|
from ...distutils import cpuinfo
|
||
|
|
sup.filter(category=UserWarning, module=cpuinfo)
|
||
|
|
# Filter out some deprecation warnings inside nose 1.3.7 when run
|
||
|
|
# on python 3.5b2. See
|
||
|
|
# https://github.com/nose-devs/nose/issues/929
|
||
|
|
# Note: it is hard to filter based on module for sup (lineno could
|
||
|
|
# be implemented).
|
||
|
|
warnings.filterwarnings("ignore", message=".*getargspec.*",
|
||
|
|
category=DeprecationWarning,
|
||
|
|
module=r"nose\.")
|
||
|
|
|
||
|
|
from .noseclasses import NumpyTestProgram
|
||
|
|
|
||
|
|
t = NumpyTestProgram(argv=argv, exit=False, plugins=plugins)
|
||
|
|
|
||
|
|
return t.result
|
||
|
|
|
||
|
|
def bench(self, label='fast', verbose=1, extra_argv=None):
|
||
|
|
"""
|
||
|
|
Run benchmarks for module using nose.
|
||
|
|
|
||
|
|
Parameters
|
||
|
|
----------
|
||
|
|
label : {'fast', 'full', '', attribute identifier}, optional
|
||
|
|
Identifies the benchmarks to run. This can be a string to pass to
|
||
|
|
the nosetests executable with the '-A' option, or one of several
|
||
|
|
special values. Special values are:
|
||
|
|
|
||
|
|
* 'fast' - the default - which corresponds to the ``nosetests -A``
|
||
|
|
option of 'not slow'.
|
||
|
|
* 'full' - fast (as above) and slow benchmarks as in the
|
||
|
|
'no -A' option to nosetests - this is the same as ''.
|
||
|
|
* None or '' - run all tests.
|
||
|
|
* attribute_identifier - string passed directly to nosetests as '-A'.
|
||
|
|
|
||
|
|
verbose : int, optional
|
||
|
|
Verbosity value for benchmark outputs, in the range 1-10. Default is 1.
|
||
|
|
extra_argv : list, optional
|
||
|
|
List with any extra arguments to pass to nosetests.
|
||
|
|
|
||
|
|
Returns
|
||
|
|
-------
|
||
|
|
success : bool
|
||
|
|
Returns True if running the benchmarks works, False if an error
|
||
|
|
occurred.
|
||
|
|
|
||
|
|
Notes
|
||
|
|
-----
|
||
|
|
Benchmarks are like tests, but have names starting with "bench" instead
|
||
|
|
of "test", and can be found under the "benchmarks" sub-directory of the
|
||
|
|
module.
|
||
|
|
|
||
|
|
Each NumPy module exposes `bench` in its namespace to run all benchmarks
|
||
|
|
for it.
|
||
|
|
|
||
|
|
Examples
|
||
|
|
--------
|
||
|
|
>>> success = np.lib.bench() #doctest: +SKIP
|
||
|
|
Running benchmarks for numpy.lib
|
||
|
|
...
|
||
|
|
using 562341 items:
|
||
|
|
unique:
|
||
|
|
0.11
|
||
|
|
unique1d:
|
||
|
|
0.11
|
||
|
|
ratio: 1.0
|
||
|
|
nUnique: 56230 == 56230
|
||
|
|
...
|
||
|
|
OK
|
||
|
|
|
||
|
|
>>> success #doctest: +SKIP
|
||
|
|
True
|
||
|
|
|
||
|
|
"""
|
||
|
|
|
||
|
|
print("Running benchmarks for %s" % self.package_name)
|
||
|
|
self._show_system_info()
|
||
|
|
|
||
|
|
argv = self._test_argv(label, verbose, extra_argv)
|
||
|
|
argv += ['--match', r'(?:^|[\\b_\\.%s-])[Bb]ench' % os.sep]
|
||
|
|
|
||
|
|
# import nose or make informative error
|
||
|
|
nose = import_nose()
|
||
|
|
|
||
|
|
# get plugin to disable doctests
|
||
|
|
from .noseclasses import Unplugger
|
||
|
|
add_plugins = [Unplugger('doctest')]
|
||
|
|
|
||
|
|
return nose.run(argv=argv, addplugins=add_plugins)
|
||
|
|
|
||
|
|
|
||
|
|
def _numpy_tester():
|
||
|
|
if hasattr(np, "__version__") and ".dev0" in np.__version__:
|
||
|
|
mode = "develop"
|
||
|
|
else:
|
||
|
|
mode = "release"
|
||
|
|
return NoseTester(raise_warnings=mode, depth=1,
|
||
|
|
check_fpu_mode=True)
|