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-"""
-Nose test running.
-
-This module implements ``test()`` and ``bench()`` functions for NumPy modules.
-
-"""
-import os
-import sys
-import warnings
-import numpy as np
-
-from .utils import import_nose, suppress_warnings
-
-
-__all__ = ['get_package_name', 'run_module_suite', 'NoseTester',
- '_numpy_tester', 'get_package_name', 'import_nose',
- 'suppress_warnings']
-
-
-def get_package_name(filepath):
- """
- Given a path where a package is installed, determine its name.
-
- Parameters
- ----------
- filepath : str
- Path to a file. If the determination fails, "numpy" is returned.
-
- Examples
- --------
- >>> np.testing.nosetester.get_package_name('nonsense')
- 'numpy'
-
- """
-
- fullpath = filepath[:]
- pkg_name = []
- while 'site-packages' in filepath or 'dist-packages' in filepath:
- filepath, p2 = os.path.split(filepath)
- if p2 in ('site-packages', 'dist-packages'):
- break
- pkg_name.append(p2)
-
- # if package name determination failed, just default to numpy/scipy
- if not pkg_name:
- if 'scipy' in fullpath:
- return 'scipy'
- else:
- return 'numpy'
-
- # otherwise, reverse to get correct order and return
- pkg_name.reverse()
-
- # don't include the outer egg directory
- if pkg_name[0].endswith('.egg'):
- pkg_name.pop(0)
-
- return '.'.join(pkg_name)
-
-
-def run_module_suite(file_to_run=None, argv=None):
- """
- Run a test module.
-
- Equivalent to calling ``$ nosetests <argv> <file_to_run>`` from
- the command line
-
- Parameters
- ----------
- file_to_run : str, optional
- Path to test module, or None.
- By default, run the module from which this function is called.
- argv : list of strings
- Arguments to be passed to the nose test runner. ``argv[0]`` is
- ignored. All command line arguments accepted by ``nosetests``
- will work. If it is the default value None, sys.argv is used.
-
- .. versionadded:: 1.9.0
-
- Examples
- --------
- Adding the following::
-
- if __name__ == "__main__" :
- run_module_suite(argv=sys.argv)
-
- at the end of a test module will run the tests when that module is
- called in the python interpreter.
-
- Alternatively, calling::
-
- >>> run_module_suite(file_to_run="numpy/tests/test_matlib.py") # doctest: +SKIP
-
- from an interpreter will run all the test routine in 'test_matlib.py'.
- """
- if file_to_run is None:
- f = sys._getframe(1)
- file_to_run = f.f_locals.get('__file__', None)
- if file_to_run is None:
- raise AssertionError
-
- if argv is None:
- argv = sys.argv + [file_to_run]
- else:
- argv = argv + [file_to_run]
-
- nose = import_nose()
- from .noseclasses import KnownFailurePlugin
- nose.run(argv=argv, addplugins=[KnownFailurePlugin()])
-
-
-class NoseTester:
- """
- Nose test runner.
-
- This class is made available as numpy.testing.Tester, and a test function
- is typically added to a package's __init__.py like so::
-
- from numpy.testing import Tester
- test = Tester().test
-
- Calling this test function finds and runs all tests associated with the
- package and all its sub-packages.
-
- Attributes
- ----------
- package_path : str
- Full path to the package to test.
- package_name : str
- Name of the package to test.
-
- Parameters
- ----------
- package : module, str or None, optional
- The package to test. If a string, this should be the full path to
- the package. If None (default), `package` is set to the module from
- which `NoseTester` is initialized.
- raise_warnings : None, str or sequence of warnings, optional
- This specifies which warnings to configure as 'raise' instead
- of being shown once during the test execution. Valid strings are:
-
- - "develop" : equals ``(Warning,)``
- - "release" : equals ``()``, don't raise on any warnings.
-
- Default is "release".
- depth : int, optional
- If `package` is None, then this can be used to initialize from the
- module of the caller of (the caller of (...)) the code that
- initializes `NoseTester`. Default of 0 means the module of the
- immediate caller; higher values are useful for utility routines that
- want to initialize `NoseTester` objects on behalf of other code.
-
- """
- def __init__(self, package=None, raise_warnings="release", depth=0,
- check_fpu_mode=False):
- # Back-compat: 'None' used to mean either "release" or "develop"
- # depending on whether this was a release or develop version of
- # numpy. Those semantics were fine for testing numpy, but not so
- # helpful for downstream projects like scipy that use
- # numpy.testing. (They want to set this based on whether *they* are a
- # release or develop version, not whether numpy is.) So we continue to
- # accept 'None' for back-compat, but it's now just an alias for the
- # default "release".
- if raise_warnings is None:
- raise_warnings = "release"
-
- package_name = None
- if package is None:
- f = sys._getframe(1 + depth)
- package_path = f.f_locals.get('__file__', None)
- if package_path is None:
- raise AssertionError
- package_path = os.path.dirname(package_path)
- package_name = f.f_locals.get('__name__', None)
- elif isinstance(package, type(os)):
- package_path = os.path.dirname(package.__file__)
- package_name = getattr(package, '__name__', None)
- else:
- package_path = str(package)
-
- self.package_path = package_path
-
- # Find the package name under test; this name is used to limit coverage
- # reporting (if enabled).
- if package_name is None:
- package_name = get_package_name(package_path)
- self.package_name = package_name
-
- # Set to "release" in constructor in maintenance branches.
- self.raise_warnings = raise_warnings
-
- # Whether to check for FPU mode changes
- self.check_fpu_mode = check_fpu_mode
-
- def _test_argv(self, label, verbose, extra_argv):
- ''' Generate argv for nosetest command
-
- Parameters
- ----------
- label : {'fast', 'full', '', attribute identifier}, optional
- see ``test`` docstring
- verbose : int, optional
- Verbosity value for test outputs, in the range 1-10. Default is 1.
- extra_argv : list, optional
- List with any extra arguments to pass to nosetests.
-
- Returns
- -------
- argv : list
- command line arguments that will be passed to nose
- '''
- argv = [__file__, self.package_path, '-s']
- if label and label != 'full':
- if not isinstance(label, str):
- raise TypeError('Selection label should be a string')
- if label == 'fast':
- label = 'not slow'
- argv += ['-A', label]
- argv += ['--verbosity', str(verbose)]
-
- # When installing with setuptools, and also in some other cases, the
- # test_*.py files end up marked +x executable. Nose, by default, does
- # not run files marked with +x as they might be scripts. However, in
- # our case nose only looks for test_*.py files under the package
- # directory, which should be safe.
- argv += ['--exe']
-
- if extra_argv:
- argv += extra_argv
- return argv
-
- def _show_system_info(self):
- nose = import_nose()
-
- import numpy
- print(f'NumPy version {numpy.__version__}')
- relaxed_strides = numpy.ones((10, 1), order="C").flags.f_contiguous
- print("NumPy relaxed strides checking option:", relaxed_strides)
- npdir = os.path.dirname(numpy.__file__)
- print(f'NumPy is installed in {npdir}')
-
- if 'scipy' in self.package_name:
- import scipy
- print(f'SciPy version {scipy.__version__}')
- spdir = os.path.dirname(scipy.__file__)
- print(f'SciPy is installed in {spdir}')
-
- pyversion = sys.version.replace('\n', '')
- print(f'Python version {pyversion}')
- print("nose version %d.%d.%d" % nose.__versioninfo__)
-
- def _get_custom_doctester(self):
- """ Return instantiated plugin for doctests
-
- Allows subclassing of this class to override doctester
-
- A return value of None means use the nose builtin doctest plugin
- """
- from .noseclasses import NumpyDoctest
- return NumpyDoctest()
-
- def prepare_test_args(self, label='fast', verbose=1, extra_argv=None,
- doctests=False, coverage=False, timer=False):
- """
- Run tests for module using nose.
-
- This method does the heavy lifting for the `test` method. It takes all
- the same arguments, for details see `test`.
-
- See Also
- --------
- test
-
- """
- # fail with nice error message if nose is not present
- import_nose()
- # compile argv
- argv = self._test_argv(label, verbose, extra_argv)
- # our way of doing coverage
- if coverage:
- argv += [f'--cover-package={self.package_name}', '--with-coverage',
- '--cover-tests', '--cover-erase']
-
- if timer:
- if timer is True:
- argv += ['--with-timer']
- elif isinstance(timer, int):
- argv += ['--with-timer', '--timer-top-n', str(timer)]
-
- # construct list of plugins
- import nose.plugins.builtin
- from nose.plugins import EntryPointPluginManager
- from .noseclasses import (KnownFailurePlugin, Unplugger,
- FPUModeCheckPlugin)
- plugins = [KnownFailurePlugin()]
- plugins += [p() for p in nose.plugins.builtin.plugins]
- if self.check_fpu_mode:
- plugins += [FPUModeCheckPlugin()]
- argv += ["--with-fpumodecheckplugin"]
- try:
- # External plugins (like nose-timer)
- entrypoint_manager = EntryPointPluginManager()
- entrypoint_manager.loadPlugins()
- plugins += [p for p in entrypoint_manager.plugins]
- except ImportError:
- # Relies on pkg_resources, not a hard dependency
- pass
-
- # add doctesting if required
- doctest_argv = '--with-doctest' in argv
- if doctests == False and doctest_argv:
- doctests = True
- plug = self._get_custom_doctester()
- if plug is None:
- # use standard doctesting
- if doctests and not doctest_argv:
- argv += ['--with-doctest']
- else: # custom doctesting
- if doctest_argv: # in fact the unplugger would take care of this
- argv.remove('--with-doctest')
- plugins += [Unplugger('doctest'), plug]
- if doctests:
- argv += ['--with-' + plug.name]
- return argv, plugins
-
- def test(self, label='fast', verbose=1, extra_argv=None,
- doctests=False, coverage=False, raise_warnings=None,
- timer=False):
- """
- Run tests for module using nose.
-
- Parameters
- ----------
- label : {'fast', 'full', '', attribute identifier}, optional
- Identifies the tests 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 tests 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 test outputs, in the range 1-10. Default is 1.
- extra_argv : list, optional
- List with any extra arguments to pass to nosetests.
- doctests : bool, optional
- If True, run doctests in module. Default is False.
- coverage : bool, optional
- If True, report coverage of NumPy code. Default is False.
- (This requires the
- `coverage module <https://pypi.org/project/coverage/>`_).
- raise_warnings : None, str or sequence of warnings, optional
- This specifies which warnings to configure as 'raise' instead
- of being shown once during the test execution. Valid strings are:
-
- * "develop" : equals ``(Warning,)``
- * "release" : equals ``()``, do not raise on any warnings.
- timer : bool or int, optional
- Timing of individual tests with ``nose-timer`` (which needs to be
- installed). If True, time tests and report on all of them.
- If an integer (say ``N``), report timing results for ``N`` slowest
- tests.
-
- Returns
- -------
- result : object
- Returns the result of running the tests as a
- ``nose.result.TextTestResult`` object.
-
- Notes
- -----
- Each NumPy module exposes `test` in its namespace to run all tests for it.
- For example, to run all tests for numpy.lib:
-
- >>> np.lib.test() #doctest: +SKIP
-
- Examples
- --------
- >>> 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(f'Running unit tests and doctests for {self.package_name}')
- else:
- print(f'Running unit tests for {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(f'Running benchmarks for {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)