mirror of
https://gitlab.com/ita1024/waf.git
synced 2024-12-01 14:31:55 +01:00
128 lines
3.8 KiB
Python
128 lines
3.8 KiB
Python
#! /usr/bin/env python
|
|
# encoding: utf-8
|
|
# Calle Rosenquist, 2016 (xbreak)
|
|
|
|
"""
|
|
Provides Python unit test support using :py:class:`waflib.Tools.waf_unit_test.utest`
|
|
task via the **pytest** feature.
|
|
|
|
The "use" dependencies are used for both update calculation and to populate
|
|
``sys.path`` via the ``PYTHONPATH`` environment variable.
|
|
|
|
1. Load **pytest** and the dependency ``waf_unit_test`` in configure.
|
|
2. Create a task generator with feature **pytest** and customize behaviour with the following attributes:
|
|
|
|
* ``pytest_source``: Test input files.
|
|
* ``ut_str``: Test runner command, e.g. ``${PYTHON} -B -m unittest discover`` or
|
|
if nose is used: ``${NOSETESTS} --no-byte-compile ${SRC}``.
|
|
* ``ut_shell``: Determines if ``ut_str`` is executed in a shell. Default: False.
|
|
* ``ut_cwd``: Working directory for test runner. Defaults to directory of
|
|
first ``pytest_source`` file.
|
|
|
|
For example::
|
|
|
|
def build(bld):
|
|
# Python package to test
|
|
bld(name = 'foo',
|
|
features = 'py'
|
|
source = bld.path.ant_glob('src/**/*.py),
|
|
install_from = 'src')
|
|
|
|
# Corresponding unit test
|
|
bld(features = 'pytest',
|
|
use = 'foo',
|
|
pytest_source = bld.path.ant_glob('test/*.py'),
|
|
ut_str = '${PYTHON} -B -m unittest discover')
|
|
|
|
"""
|
|
|
|
import os
|
|
from waflib import Task, TaskGen, Errors
|
|
|
|
def _process_use_rec(self, name):
|
|
"""
|
|
Recursively process ``use`` for task generator with name ``name``..
|
|
Used by pytest_process_use.
|
|
"""
|
|
if name in self.pytest_use_not or name in self.pytest_use_seen:
|
|
return
|
|
try:
|
|
tg = self.bld.get_tgen_by_name(name)
|
|
except Errors.WafError:
|
|
self.pytest_use_not.add(name)
|
|
return
|
|
|
|
self.pytest_use_seen.append(name)
|
|
tg.post()
|
|
|
|
for n in self.to_list(getattr(tg, 'use', [])):
|
|
_process_use_rec(self, n)
|
|
|
|
@TaskGen.feature('pytest')
|
|
@TaskGen.after_method('process_source')
|
|
def pytest_process_use(self):
|
|
"""
|
|
Process the ``use`` attribute which contains a list of task generator names.
|
|
"""
|
|
self.pytest_use_not = set()
|
|
self.pytest_use_seen = []
|
|
self.pytest_paths = set()
|
|
self.pytest_dep_nodes = []
|
|
|
|
names = self.to_list(getattr(self, 'use', []))
|
|
for name in names:
|
|
_process_use_rec(self, name)
|
|
|
|
# Collect dependent nodes
|
|
for name in self.pytest_use_seen:
|
|
tg = self.bld.get_tgen_by_name(name)
|
|
|
|
if 'py' in tg.features:
|
|
# Python dependencies are added to PYTHONPATH
|
|
# Use only py-files in multi language sources
|
|
self.pytest_dep_nodes.extend([s for s in tg.source if s.suffix() == '.py'])
|
|
|
|
pypath = getattr(tg, 'install_from', None)
|
|
if not pypath:
|
|
pypath = tg.path
|
|
self.pytest_paths.add(pypath.abspath())
|
|
|
|
if getattr(tg, 'link_task', None):
|
|
# For tasks with a link_task (C, C++, D et.c.) add
|
|
# the output nodes as dependencies for test to be re-run if it's updated.
|
|
self.pytest_dep_nodes.extend(tg.link_task.outputs)
|
|
|
|
@TaskGen.feature('pytest')
|
|
@TaskGen.after_method('pytest_process_use')
|
|
def make_pytest(self):
|
|
"""
|
|
Creates a ``utest`` task with a modified PYTHONPATH environment for Python.
|
|
"""
|
|
nodes = self.to_nodes(self.pytest_source)
|
|
tsk = self.create_task('utest', nodes)
|
|
tsk.dep_nodes.extend(self.pytest_dep_nodes)
|
|
|
|
if getattr(self, 'ut_str', None):
|
|
self.ut_run, lst = Task.compile_fun(self.ut_str, shell=getattr(self, 'ut_shell', False))
|
|
tsk.vars = lst + tsk.vars
|
|
|
|
if getattr(self, 'ut_cwd', None):
|
|
if isinstance(self.ut_cwd, str):
|
|
# we want a Node instance
|
|
if os.path.isabs(self.ut_cwd):
|
|
self.ut_cwd = self.bld.root.make_node(self.ut_cwd)
|
|
else:
|
|
self.ut_cwd = self.path.make_node(self.ut_cwd)
|
|
else:
|
|
if tsk.inputs:
|
|
self.ut_cwd = tsk.inputs[0].parent
|
|
else:
|
|
raise Errors.WafError("no valid input files for pytest task, check pytest_source value")
|
|
|
|
if not self.ut_cwd.exists():
|
|
self.ut_cwd.mkdir()
|
|
|
|
self.ut_env = dict(os.environ)
|
|
self.ut_env['PYTHONPATH'] = os.pathsep.join(self.pytest_paths) + self.ut_env.get('PYTHONPATH', '')
|
|
|