test/ext/conftest.py

   1
   2 from subprocess import CalledProcessError
   3 import pytest, subprocess, sys
   4
   5 from bup.compat import fsdecode
   6 from bup.io import byte_stream
   7
   8 # Handle all test-* files as wvtest protocol subprocesses
   9 # cf. https://docs.pytest.org/en/latest/example/nonpython.html
  10
  11 class BupSubprocFailure(Exception):
  12     def __init__(self, msg, cmd, status, failures):
  13         super(BupSubprocFailure, self).__init__(msg)
  14         self.cmd = cmd
  15         self.status = status
  16         self.failures = failures
  17
  18 class BupSubprocTestRunner(pytest.Item):
  19
  20     def __init__(self, name, parent):
  21         super(BupSubprocTestRunner, self).__init__(name, parent)
  22
  23     def runtest(self):
  24         cmd = str(self.fspath)
  25         p = subprocess.Popen(cmd,
  26                              stdout=subprocess.PIPE,
  27                              stderr=subprocess.STDOUT)
  28         out = p.communicate()[0]
  29         sys.stdout.flush()
  30         byte_stream(sys.stdout).write(out)
  31         failures = [line for line in out.splitlines()
  32                     if (line.startswith(b'!')
  33                         and line.lower().endswith(b' failed'))]
  34         if failures or p.returncode != 0:
  35             raise BupSubprocFailure('%s failed (exit %d, %d failures)'
  36                                     % (cmd, p.returncode, len(failures)),
  37                                     cmd, p.returncode, failures)
  38
  39     def repr_failure(self, excinfo):
  40         ex = excinfo.value
  41         if isinstance(ex, BupSubprocFailure):
  42             msg = ['Exit status: %d' % ex.status,
  43                    'Failures:']
  44             msg.extend(fsdecode(s) for s in ex.failures)
  45             return '\n'.join(msg)
  46
  47     def reportinfo(self):
  48         # This does not appear to be documented, but is in the
  49         # example, and sets the final report header line (at least)
  50         # for failures.
  51         test_name = str(self.fspath)
  52         linenum = None
  53         return self.fspath, linenum, test_name
  54
  55 class BupSubprocTestFile(pytest.File):
  56     def collect(self):
  57         name = self.fspath.basename
  58         # name='' because there's only one test: running the command.
  59         # i.e there are no sub-tests.  Otherwise the status messages
  60         # duplicate the test name like this:
  61         #   test/ext/test-cat-file.sh::test-cat-file.sh PASSED ...
  62         try:
  63             yield BupSubprocTestRunner.from_parent(self, name='')
  64         except AttributeError:
  65             yield BupSubprocTestRunner('', self)
  66
  67 def pytest_collect_file(parent, path):
  68     base = path.basename
  69     if base.startswith('test-') and not base.endswith('~'):
  70         try:
  71             item = BupSubprocTestFile.from_parent(parent, fspath=path)
  72         except AttributeError:
  73             item = BupSubprocTestFile(path, parent)
  74         if base == 'test-release-archive.sh':
  75             item.add_marker(pytest.mark.release)
  76         return item