go/neo/t: nxd/runTestSuite was generalized and factored-out into nxdtest

See:

- https://lab.nexedi.com/nexedi/nxdtest
- https://lab.nexedi.com/nexedi/nxdtest/blob/master/nxdtest/__init__.py
- nexedi/nxdtest@d575236a
- nexedi/slapos!839

-> Leave only .nxdtest file with neotest-specific bits to be run by
nxdtest driver.

go/neo/t/.nxdtest

+# setup to run neotest on Nexedi testing infrastructure.
+# https://stack.nexedi.com/test_status
+
+# neotest must be on $PATH.
+
+import re
+
+# xint converts number from neo/py test output to integer
+def xint(s):
+    s = s.strip()
+    if s == '.':
+        return 0
+    else:
+        return int(s)
+
+# extract summary from neo/py test run
+def test_py_summary(stdout):
+    #   Test Module |  run  | unexpected | expected | skipped |  time
+    #   ...
+    #       Summary |  366  |       .    |      9   |     .   | 353.47s
+    m = re.search(r'^\s*summary.*$', stdout, re.M | re.I)
+    assert m is not None, "could not find summary line"
+    summary = m.group(0)
+    _, nrun, nfail, nxfail, nskip, _  = summary.split('|')
+    return {
+            'test_count':       xint(nrun),
+            'error_count':      xint(nfail),
+            'failure_count':    xint(nxfail),
+            'skip_count':       xint(nskip),
+    }
+
+
+TestCase('test-go', ['neotest', 'test-go'])
+TestCase('test-py', ['neotest', 'test-py'], summaryf=test_py_summary)
+TestCase('bench-local', ['neotest', 'bench-local'])

go/neo/t/nxd/runTestSuite

-#!/usr/bin/env python
-# -*- coding: utf-8 -*-
-# Copyright (C) 2018  Nexedi SA and Contributors.
-#
-# This program is free software: you can Use, Study, Modify and Redistribute
-# it under the terms of the GNU General Public License version 3, or (at your
-# option) any later version, as published by the Free Software Foundation.
-#
-# You can also Link and Combine this program with other software covered by
-# the terms of any of the Free Software licenses or any of the Open Source
-# Initiative approved licenses and Convey the resulting work. Corresponding
-# source of such a combination shall include the source code for all other
-# software used.
-#
-# This program is distributed WITHOUT ANY WARRANTY; without even the implied
-# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-#
-# See COPYING file for full licensing terms.
-# See https://www.nexedi.com/licensing for rationale and options.
-"""runTestSuite - run neotest under Nexedi testing infrastructure.
-
-neotest must be on $PATH.
-"""
-
-from erp5.util.taskdistribution import TaskDistributor
-from subprocess import Popen, PIPE
-from time import time, strftime, gmtime
-import os, sys, threading, argparse, logging, traceback, re
-
-
-def main():
-    # testnode executes us giving URL to master results collecting instance and other details
-    # https://lab.nexedi.com/nexedi/erp5/blob/744f3fde/erp5/util/testnode/UnitTestRunner.py#L137
-    parser = argparse.ArgumentParser(description=__doc__)
-    parser.add_argument('--master_url', help='The URL of Master controling many suites')
-    parser.add_argument('--revision', help='The revision to test', default='dummy_revision')
-    parser.add_argument('--test_suite', help='The test suite name')
-    parser.add_argument('--test_suite_title', help='The test suite title')
-    parser.add_argument('--test_node_title', help='The test node title')
-    parser.add_argument('--project_title', help='The project title')
-
-    parser.add_argument('--verbose', action='store_true', help='increase output verbosity')
-
-    args = parser.parse_args()
-
-    # if verbose -> log to stderr
-    logger = None
-    if args.verbose:
-        logging.basicConfig(level=logging.DEBUG, format='%(asctime)s - %(levelname)s - %(message)s')
-        logger = logging.getLogger()
-
-    # connect to master and create 'test result' object with list of tests to run
-    tool = TaskDistributor(portal_url = args.master_url, logger = logger)
-    test_result = tool.createTestResult(
-                    revision        = args.revision,
-                    test_name_list  = ['test-go', 'test-py', 'bench-local'],
-                    node_title      = args.test_node_title,
-                    test_title      = args.test_suite_title or args.test_suite,
-                    project_title   = args.project_title)
-
-    if test_result is None:
-        # a test run for given name and revision has already been completed
-        return
-
-    # make sure we get output from subprocesses without delay.
-    # go does not buffer stdout/stderr by default, but python does for stdout.
-    # tell python not to buffer anything.
-    os.environ['PYTHONUNBUFFERED'] = 'y'
-
-    # run the tests
-    devnull = open(os.devnull)
-    while 1:
-        # ask master for next test to run; stop if no more.
-        test_result_line = test_result.start()
-        if test_result_line is None:
-            break
-
-        # run `neotest <test-name>`
-        testname = test_result_line.name
-        argv = ['neotest', testname]
-        tstart = time()
-
-        try:
-            # NOTE runs with unchanged cwd. Instance wrapper cares to set cwd before running us.
-            # bufsize=1 means 'line buffered'
-            p = Popen(argv, stdin=devnull, stdout=PIPE, stderr=PIPE, bufsize=1)
-        except:
-            stdout, stderr = '', traceback.format_exc()
-            sys.stderr.write(stderr)
-            ok = False
-        else:
-            # tee >stdout,stderr so we can also see in testnode logs
-            # (explicit teeing instead of p.communicate() to be able to see incremental progress)
-            buf_out = []
-            buf_err = []
-            tout = threading.Thread(target=tee, args=(p.stdout, sys.stdout, buf_out))
-            terr = threading.Thread(target=tee, args=(p.stderr, sys.stderr, buf_err))
-            tout.start()
-            terr.start()
-
-            tout.join(); stdout = ''.join(buf_out)
-            terr.join(); stderr = ''.join(buf_err)
-            p.wait()
-            ok = (p.returncode == 0)
-
-            # default status dict just by exit code
-            status = {
-                'test_count':       1,
-                'error_count':      (0 if ok else 1),
-                'failure_count':    0,
-                'skip_count':       0,
-                #html_test_result
-            }
-
-            # postprocess output, if we can
-            summaryf = globals().get(testname.replace('-', '_') + '_summary')
-            if summaryf is not None:
-                try:
-                    summary = summaryf(stdout)
-                except:
-                    bad = traceback.format_exc()
-                    sys.stderr.write(bad)
-                    stderr += bad
-                    status['error_count'] += 1
-
-                else:
-                    status.update(summary)
-
-
-        tend = time()
-
-        # report result of test run back to master
-        test_result_line.stop(
-            command     = ' '.join(argv),
-            duration    = tend - tstart,
-            date        = strftime("%Y/%m/%d %H:%M:%S", gmtime(tend)),
-
-            stdout      = stdout,
-            stderr      = stderr,
-
-            **status
-        )
-
-# tee, similar to tee(1) utility, copies data from fin to fout appending them to buf.
-def tee(fin, fout, buf):
-    while 1:
-        # NOTE use raw os.read because it does not wait for full data to be available.
-        # ( we could use fin.readline(), but there are cases when e.g. progress
-        #   is reported via printing consequent dots on the same line and
-        #   readline() won't work for that.
-        #
-        #   besides when a lot of output is available it would be a waste to
-        #   read/flush it line-by-line. )
-        data = os.read(fin.fileno(), 4096)
-        if not(data):
-            return  # EOF
-
-        fout.write(data)
-        fout.flush()
-        buf.append(data)
-
-
-# xint converts number from neo/py test output to integer
-def xint(s):
-    s = s.strip()
-    if s == '.':
-        return 0
-    else:
-        return int(s)
-
-
-# extract summary from neo/py test run
-def test_py_summary(stdout):
-    #   Test Module |  run  | unexpected | expected | skipped |  time
-    #   ...
-    #       Summary |  366  |       .    |      9   |     .   | 353.47s
-    m = re.search(r'^\s*summary.*$', stdout, re.M | re.I)
-    assert m is not None, "could not find summary line"
-    summary = m.group(0)
-    _, nrun, nfail, nxfail, nskip, _  = summary.split('|')
-    return {
-            'test_count':       xint(nrun),
-            'error_count':      xint(nfail),
-            'failure_count':    xint(nxfail),
-            'skip_count':       xint(nskip),
-    }
-
-
-if __name__ == '__main__':
-    main()