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import contextlib
import errno
import importlib
import itertools
import os
import platform
import subprocess
import sys
import time
from argparse import Namespace
from collections import namedtuple
import pytest
from pyqtgraph import Qt
if __name__ == "__main__" and (__package__ is None or __package__==''):
parent_dir = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
sys.path.insert(0, parent_dir)
import examples
__package__ = "examples"
from . import utils
def buildFileList(examples, files=None):
if files is None:
files = []
for key, val in examples.items():
if isinstance(val, dict):
buildFileList(val, files)
elif isinstance(val, Namespace):
files.append((key, val.filename))
else:
files.append((key, val))
return files
path = os.path.abspath(os.path.dirname(__file__))
files = [("Example App", "RunExampleApp.py")]
for ex in [utils.examples_, utils.others]:
files = buildFileList(ex, files)
files = sorted(set(files))
frontends = {
Qt.PYQT5: False,
Qt.PYQT6: False,
Qt.PYSIDE2: False,
Qt.PYSIDE6: False,
}
# sort out which of the front ends are available
for frontend in frontends.keys():
with contextlib.suppress(ImportError):
importlib.import_module(frontend)
frontends[frontend] = True
installedFrontends = sorted([
frontend for frontend, isPresent in frontends.items() if isPresent
])
darwin_opengl_broken = (platform.system() == "Darwin" and
tuple(map(int, platform.mac_ver()[0].split("."))) >= (10, 16) and
(sys.version_info < (3, 8, 10) or sys.version_info == (3, 9, 0)))
darwin_opengl_reason = ("pyopenGL cannot find openGL library on big sur: "
"https://github.com/python/cpython/pull/21241")
exceptionCondition = namedtuple("exceptionCondition", ["condition", "reason"])
conditionalExamples = {
"hdf5.py": exceptionCondition(
False,
reason="Example requires user interaction"
),
"jupyter_console_example.py": exceptionCondition(
importlib.util.find_spec("qtconsole") is not None,
reason="No need to test with qtconsole not being installed"
),
"RemoteSpeedTest.py": exceptionCondition(
False,
reason="Test is being problematic on CI machines"
),
}
openglExamples = ['GLViewWidget.py']
openglExamples.extend(utils.examples_['3D Graphics'].values())
for key in openglExamples:
conditionalExamples[key] = exceptionCondition(
not darwin_opengl_broken,
reason=darwin_opengl_reason
)
@pytest.mark.skipif(
Qt.QT_LIB == "PySide2"
and tuple(map(int, Qt.PySide2.__version__.split("."))) >= (5, 14)
and tuple(map(int, Qt.PySide2.__version__.split("."))) < (5, 14, 2, 2),
reason="new PySide2 doesn't have loadUi functionality"
)
@pytest.mark.parametrize(
"frontend, f",
[
pytest.param(
frontend,
f,
marks=pytest.mark.skipif(
conditionalExamples[f[1]].condition is False,
reason=conditionalExamples[f[1]].reason
) if f[1] in conditionalExamples.keys() else (),
)
for frontend, f, in itertools.product(installedFrontends, files)
],
ids = [
" {} - {} ".format(f[1], frontend)
for frontend, f in itertools.product(
installedFrontends,
files
)
]
)
def testExamples(frontend, f):
name, file = f
global path
fn = os.path.join(path, file)
os.chdir(path)
sys.stdout.write(f"{name}")
sys.stdout.flush()
import1 = "import %s" % frontend if frontend != '' else ''
import2 = os.path.splitext(os.path.split(fn)[1])[0]
code = """
try:
{0}
import faulthandler
faulthandler.enable()
import pyqtgraph as pg
import {1}
import sys
print("test complete")
sys.stdout.flush()
pg.Qt.QtCore.QTimer.singleShot(1000, pg.Qt.QtWidgets.QApplication.quit)
pg.exec()
names = [x for x in dir({1}) if not x.startswith('_')]
for name in names:
delattr({1}, name)
except:
print("test failed")
raise
""".format(import1, import2)
env = dict(os.environ)
example_dir = os.path.abspath(os.path.dirname(__file__))
path = os.path.dirname(os.path.dirname(example_dir))
env['PYTHONPATH'] = f'{path}{os.pathsep}{example_dir}'
process = subprocess.Popen([sys.executable],
stdin=subprocess.PIPE,
stderr=subprocess.PIPE,
stdout=subprocess.PIPE,
text=True,
env=env)
process.stdin.write(code)
process.stdin.close()
output = ''
fail = False
while True:
try:
c = process.stdout.read(1)
except IOError as err:
if err.errno == errno.EINTR:
# Interrupted system call; just try again.
c = ''
else:
raise
output += c
if output.endswith('test complete'):
break
if output.endswith('test failed'):
fail = True
break
start = time.time()
killed = False
while process.poll() is None:
time.sleep(0.1)
if time.time() - start > 2.0 and not killed:
process.kill()
killed = True
stdout, stderr = (process.stdout.read(), process.stderr.read())
process.stdout.close()
process.stderr.close()
if (fail or
'Exception:' in stderr or
'Error:' in stderr):
if (not fail
and name == "RemoteGraphicsView"
and "pyqtgraph.multiprocess.remoteproxy.ClosedError" in stderr):
# This test can intermittently fail when the subprocess is killed
return None
print(stdout)
print(stderr)
pytest.fail(
f"{stdout}\n{stderr}\nFailed {name} Example Test Located in {file}",
pytrace=False
)
if __name__ == "__main__":
pytest.cmdline.main()
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