146 lines
3.3 KiB
Python
146 lines
3.3 KiB
Python
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# -*- coding: utf-8 -*-
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# Distributed under the (new) BSD License. See LICENSE.txt for more info.
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""" Functionality used for testing. This code itself is not covered in tests.
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"""
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import os
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import sys
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import inspect
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import shutil
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import atexit
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import pytest
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# Get root dir
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THIS_DIR = os.path.abspath(os.path.dirname(__file__))
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ROOT_DIR = THIS_DIR
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for i in range(9):
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ROOT_DIR = os.path.dirname(ROOT_DIR)
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if os.path.isfile(os.path.join(ROOT_DIR, ".gitignore")):
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break
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## Functions to use in tests
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def run_tests_if_main(show_coverage=False):
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""" Run tests in a given file if it is run as a script
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Coverage is reported for running this single test. Set show_coverage to
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launch the report in the web browser.
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"""
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local_vars = inspect.currentframe().f_back.f_locals
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if not local_vars.get("__name__", "") == "__main__":
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return
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# we are in a "__main__"
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os.chdir(ROOT_DIR)
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fname = str(local_vars["__file__"])
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_clear_imageio()
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_enable_faulthandler()
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pytest.main(
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[
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"-v",
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"-x",
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"--color=yes",
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"--cov",
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"imageio",
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"--cov-config",
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".coveragerc",
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"--cov-report",
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"html",
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fname,
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]
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)
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if show_coverage:
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import webbrowser
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fname = os.path.join(ROOT_DIR, "htmlcov", "index.html")
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webbrowser.open_new_tab(fname)
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_the_test_dir = None
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def get_test_dir():
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global _the_test_dir
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if _the_test_dir is None:
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# Define dir
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from imageio.core import appdata_dir
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_the_test_dir = os.path.join(appdata_dir("imageio"), "testdir")
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# Clear and create it now
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clean_test_dir(True)
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os.makedirs(_the_test_dir)
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os.makedirs(os.path.join(_the_test_dir, "images"))
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# And later
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atexit.register(clean_test_dir)
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return _the_test_dir
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def clean_test_dir(strict=False):
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if os.path.isdir(_the_test_dir):
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try:
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shutil.rmtree(_the_test_dir)
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except Exception:
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if strict:
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raise
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def need_internet():
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if os.getenv("IMAGEIO_NO_INTERNET", "").lower() in ("1", "true", "yes"):
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pytest.skip("No internet")
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## Functions to use from invoke tasks
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def test_unit(cov_report="term"):
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""" Run all unit tests. Returns exit code.
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"""
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orig_dir = os.getcwd()
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os.chdir(ROOT_DIR)
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try:
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_clear_imageio()
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_enable_faulthandler()
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return pytest.main(
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[
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"-v",
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"--cov",
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"imageio",
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"--cov-config",
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".coveragerc",
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"--cov-report",
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cov_report,
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"tests",
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]
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)
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finally:
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os.chdir(orig_dir)
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import imageio
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print("Tests were performed on", str(imageio))
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## Requirements
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def _enable_faulthandler():
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""" Enable faulthandler (if we can), so that we get tracebacks
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on segfaults.
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"""
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try:
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import faulthandler
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faulthandler.enable()
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print("Faulthandler enabled")
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except Exception:
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print("Could not enable faulthandler")
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def _clear_imageio():
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# Remove ourselves from sys.modules to force an import
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for key in list(sys.modules.keys()):
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if key.startswith("imageio"):
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del sys.modules[key]
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