vscode-python/pythonFiles/visualstudio_py_testlauncher.py at master · imrishav/vscode-python · GitHub

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# Python Tools for Visual Studio

# Copyright(c) Microsoft Corporation

# Licensed under the Apache License, Version 2.0 (the License); you may not use

# this file except in compliance with the License. You may obtain a copy of the

# License at http://www.apache.org/licenses/LICENSE-2.0

# THIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS

# OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY

# IMPLIED WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,

# MERCHANTABLITY OR NON-INFRINGEMENT.

# See the Apache Version 2.0 License for specific language governing

# permissions and limitations under the License.

__author__ = "Microsoft Corporation <ptvshelp@microsoft.com>"

__version__ = "3.0.0.0"

import os

import sys

import json

import unittest

import socket

import traceback

from types import CodeType, FunctionType

import signal

try:

import thread

except:

import _thread as thread

class _TestOutput(object):

"""file like object which redirects output to the repl window."""

errors = "strict"

def __init__(self, old_out, is_stdout):

self.is_stdout = is_stdout

self.old_out = old_out

if sys.version >= "3." and hasattr(old_out, "buffer"):

self.buffer = _TestOutputBuffer(old_out.buffer, is_stdout)

def flush(self):

if self.old_out:

self.old_out.flush()

def writelines(self, lines):

for line in lines:

self.write(line)

@property

def encoding(self):

return "utf8"

def write(self, value):

_channel.send_event("stdout" if self.is_stdout else "stderr", content=value)

if self.old_out:

self.old_out.write(value)

# flush immediately, else things go wonky and out of order

self.flush()

def isatty(self):

return True

def next(self):

pass

@property

def name(self):

if self.is_stdout:

return "<stdout>"

else:

return "<stderr>"

def __getattr__(self, name):

return getattr(self.old_out, name)

class _TestOutputBuffer(object):

def __init__(self, old_buffer, is_stdout):

self.buffer = old_buffer

self.is_stdout = is_stdout

def write(self, data):

_channel.send_event("stdout" if self.is_stdout else "stderr", content=data)

self.buffer.write(data)

def flush(self):

self.buffer.flush()

def truncate(self, pos=None):

return self.buffer.truncate(pos)

def tell(self):

return self.buffer.tell()

def seek(self, pos, whence=0):

return self.buffer.seek(pos, whence)

class _IpcChannel(object):

def __init__(self, socket, callback):

self.socket = socket

self.seq = 0

self.callback = callback

self.lock = thread.allocate_lock()

self._closed = False

# start the testing reader thread loop

self.test_thread_id = thread.start_new_thread(self.readSocket, ())

def close(self):

self._closed = True

def readSocket(self):

try:

data = self.socket.recv(1024)

self.callback()

except OSError:

if not self._closed:

raise

def receive(self):

pass

def send_event(self, name, **args):

with self.lock:

body = {"type": "event", "seq": self.seq, "event": name, "body": args}

self.seq += 1

content = json.dumps(body).encode("utf8")

headers = ("Content-Length: %d\n\n" % (len(content),)).encode("utf8")

self.socket.send(headers)

self.socket.send(content)

_channel = None

class VsTestResult(unittest.TextTestResult):

def startTest(self, test):

super(VsTestResult, self).startTest(test)

if _channel is not None:

_channel.send_event(name="start", test=test.id())

def addError(self, test, err):

super(VsTestResult, self).addError(test, err)

self.sendResult(test, "error", err)

def addFailure(self, test, err):

super(VsTestResult, self).addFailure(test, err)

self.sendResult(test, "failed", err)

def addSuccess(self, test):

super(VsTestResult, self).addSuccess(test)

self.sendResult(test, "passed")

def addSkip(self, test, reason):

super(VsTestResult, self).addSkip(test, reason)

self.sendResult(test, "skipped")

def addExpectedFailure(self, test, err):

super(VsTestResult, self).addExpectedFailure(test, err)

self.sendResult(test, "failed", err)

def addUnexpectedSuccess(self, test):

super(VsTestResult, self).addUnexpectedSuccess(test)

self.sendResult(test, "passed")

def sendResult(self, test, outcome, trace=None):

if _channel is not None:

tb = None

message = None

if trace is not None:

traceback.print_exc()

formatted = traceback.format_exception(*trace)

# Remove the 'Traceback (most recent call last)'

formatted = formatted[1:]

tb = "".join(formatted)

message = str(trace[1])

_channel.send_event(

name="result",

outcome=outcome,

traceback=tb,

message=message,

test=test.id(),

)

def stopTests():

try:

os.kill(os.getpid(), signal.SIGUSR1)

except:

try:

os.kill(os.getpid(), signal.SIGTERM)

except:

pass

class ExitCommand(Exception):

pass

def signal_handler(signal, frame):

raise ExitCommand()

def main():

import os

import sys

import unittest

from optparse import OptionParser

global _channel

parser = OptionParser(

prog="visualstudio_py_testlauncher",

usage="Usage: %prog [<option>] <test names>... ",

)

parser.add_option(

"--debug", action="store_true", help="Whether debugging the unit tests"

)

parser.add_option(

"-x",

"--mixed-mode",

action="store_true",

help="wait for mixed-mode debugger to attach",

)

parser.add_option(

"-t",

"--test",

type="str",

dest="tests",

action="append",

help="specifies a test to run",

)

parser.add_option(

"--testFile", type="str", help="Fully qualitified path to file name"

)

parser.add_option(

"-c", "--coverage", type="str", help="enable code coverage and specify filename"

)

parser.add_option(

"-r",

"--result-port",

type="int",

help="connect to port on localhost and send test results",

)

parser.add_option("--us", type="str", help="Directory to start discovery")

parser.add_option(

"--up", type="str", help="Pattern to match test files (" "test*.py" " default)"

)

parser.add_option(

"--ut",

type="str",

help="Top level directory of project (default to start directory)",

)

parser.add_option(

"--uvInt",

"--verboseInt",

type="int",

help="Verbose output (0 none, 1 (no -v) simple, 2 (-v) full)",

)

parser.add_option("--uf", "--failfast", type="str", help="Stop on first failure")

parser.add_option(

"--uc", "--catch", type="str", help="Catch control-C and display results"

)

(opts, _) = parser.parse_args()

sys.path[0] = os.getcwd()

if opts.result_port:

try:

signal.signal(signal.SIGUSR1, signal_handler)

except:

try:

signal.signal(signal.SIGTERM, signal_handler)

except:

pass

_channel = _IpcChannel(

socket.create_connection(("127.0.0.1", opts.result_port)), stopTests

)

sys.stdout = _TestOutput(sys.stdout, is_stdout=True)

sys.stderr = _TestOutput(sys.stderr, is_stdout=False)

if opts.mixed_mode:

# For mixed-mode attach, there's no ptvsd and hence no wait_for_attach(),

# so we have to use Win32 API in a loop to do the same thing.

from time import sleep

from ctypes import windll, c_char

while True:

if windll.kernel32.IsDebuggerPresent() != 0:

break

sleep(0.1)

try:

debugger_helper = windll["Microsoft.PythonTools.Debugger.Helper.x86.dll"]

except WindowsError:

debugger_helper = windll["Microsoft.PythonTools.Debugger.Helper.x64.dll"]

isTracing = c_char.in_dll(debugger_helper, "isTracing")

while True:

if isTracing.value != 0:

break

sleep(0.1)

cov = None

try:

if opts.coverage:

try:

import coverage

cov = coverage.coverage(opts.coverage)

cov.load()

cov.start()

except:

pass

if opts.tests is None and opts.testFile is None:

if opts.us is None:

opts.us = "."

if opts.up is None:

opts.up = "test*.py"

tests = unittest.defaultTestLoader.discover(opts.us, opts.up)

else:

# loadTestsFromNames doesn't work well (with duplicate file names or class names)

# Easier approach is find the test suite and use that for running

loader = unittest.TestLoader()

# opts.us will be passed in

suites = loader.discover(opts.us, pattern=os.path.basename(opts.testFile))

suite = None

tests = None

if opts.tests is None:

# Run everything in the test file

tests = suites

else:

# Run a specific test class or test method

for test_suite in suites._tests:

for cls in test_suite._tests:

try:

for m in cls._tests:

testId = m.id()

if testId.startswith(opts.tests[0]):

suite = cls

if testId == opts.tests[0]:

tests = unittest.TestSuite([m])

break

except Exception as err:

errorMessage = traceback.format_exception()

pass

if tests is None:

tests = suite

if tests is None and suite is None:

_channel.send_event(

name="error",

outcome="",

traceback="",

message="Failed to identify the test",

test="",

)

if opts.uvInt is None:

opts.uvInt = 0

if opts.uf is not None:

runner = unittest.TextTestRunner(

verbosity=opts.uvInt, resultclass=VsTestResult, failfast=True

)

else:

runner = unittest.TextTestRunner(

verbosity=opts.uvInt, resultclass=VsTestResult

)

result = runner.run(tests)

if _channel is not None:

_channel.close()

sys.exit(not result.wasSuccessful())

finally:

if cov is not None:

cov.stop()

cov.save()

cov.xml_report(outfile=opts.coverage + ".xml", omit=__file__)

if _channel is not None:

_channel.send_event(name="done")

_channel.socket.close()

# prevent generation of the error 'Error in sys.exitfunc:'

try:

sys.stdout.close()

except:

pass

try:

sys.stderr.close()

except:

pass

if __name__ == "__main__":

main()

vscode-python/pythonFiles/visualstudio_py_testlauncher.py at master · imrishav/vscode-python · GitHub

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