From: Zooko O'Whielacronx Date: Sat, 13 Nov 2010 15:28:22 +0000 (-0800) Subject: setup: test whether the build system prefers binary dists which are new enough over... X-Git-Url: https://git.rkrishnan.org/%5B/%5D%20/reliability?a=commitdiff_plain;h=59dcd5014dcb440a0c3db344fa423fe239a1695a;p=tahoe-lafs%2Ftahoe-lafs.git setup: test whether the build system prefers binary dists which are new enough over source dists which are even newer ref: #1233 --- diff --git a/misc/build_helpers/test-with-fake-dists.py b/misc/build_helpers/test-with-fake-dists.py new file mode 100644 index 00000000..1c8e1b48 --- /dev/null +++ b/misc/build_helpers/test-with-fake-dists.py @@ -0,0 +1,69 @@ +#!/usr/bin/env python + +# We put a fake "pycryptopp-0.5.24.egg" package and a fake +# "pycryptopp-9.9.99.tar.gz" into a directory, but the latter is +# booby-trapped so it will raise an exception when you try to build +# it. + +# Then we run "python setup.py test -s +# buildtest.test_with_fake_dist", which imports pycryptopp +# and passes if pycryptopp.__version__ == '0.5.24'. + +# (If building succeeded -- meaning that you didn't try to build the +# booby-trapped 9.9.99 -- but pycryptopp.__version__ != '0.5.24' then +# that means a different version of pycryptopp was already installed +# so neither of the two fake pycryptopp packages were needed. In that +# case this test should be treated as a "skip" -- the functionality +# under test can't be exercised on the current system.) + +# The goal is to turn red if the build system tries to build the +# source dist when it could have used the binary dist. + +# (Note that for this test to make sense, tahoe-lafs needs to be +# asking for a version of pycryptopp which can be satisfied by either +# 0.5.24 or 0.5.25. At the time of this writing it requires >= 0.5.20 +# on x86 and >= 0.5.14 on other architectures.) + +import StringIO, glob, os, platform, subprocess, sys, tarfile, zipfile +import pkg_resources + +fake_distdir = 'tahoe-deps' +fake_distname = "pycryptopp" +fake_sdistversion = "9.9.99" +fake_bdistversion = "0.5.24" +sdist_setup = "raise Exception('Aha I caught you trying to build me. I am a fake pycryptopp 9.9.99 sdist and you should be satisfied with a bdist.')" + +testsuite = "buildtest.test_build_with_fake_dist" + +dist_dirname = os.path.join(os.getcwd(), fake_distdir) + +try: + os.makedirs(dist_dirname) +except OSError: + # probably already exists + pass + +bdist_egg_name = os.path.join(dist_dirname, '%s-%s-py%s.%s-%s.egg' % (fake_distname, fake_bdistversion, platform.python_version_tuple()[0], platform.python_version_tuple()[1], pkg_resources.get_supported_platform())) +try: + bdist_egg = zipfile.ZipFile(bdist_egg_name, 'w') + bdist_egg.writestr('pycryptopp/__init__.py', '__version__ = "%s"\n' % (fake_bdistversion,)) + bdist_egg.close() + + sdist_name = os.path.join(dist_dirname, '%s-%s.tar' % (fake_distname, fake_sdistversion)) + sdist = tarfile.open(sdist_name, 'w:gz') + sdist.errorlevel =2 + tarinfo = tarfile.TarInfo('setup.py') + tarinfo.errorlevel =2 + tarinfo.size = len(sdist_setup) + sdist.addfile(tarinfo, StringIO.StringIO(sdist_setup)) + sdist.close() + + setuppy="setup.py" + os.environ['PATH']=os.path.join(os.getcwd(), 'src')+os.pathsep+os.environ['PATH'] + eggs = [os.path.realpath(p) for p in glob.glob(os.path.join('..', '*.egg')) if not 'pycryptopp' in p] + os.environ['PYTHONPATH']=os.pathsep+os.pathsep.join(eggs)+os.pathsep+os.environ.get('PYTHONPATH','') + sys.exit(subprocess.call([sys.executable, setuppy, "-v", "test", "-s", testsuite], env=os.environ)) +finally: + os.remove(bdist_egg_name) + os.remove(sdist_name) + pass diff --git a/src/buildtest/__init__.py b/src/buildtest/__init__.py new file mode 100644 index 00000000..e69de29b diff --git a/src/buildtest/test_build_with_fake_dist.py b/src/buildtest/test_build_with_fake_dist.py new file mode 100644 index 00000000..57a4b533 --- /dev/null +++ b/src/buildtest/test_build_with_fake_dist.py @@ -0,0 +1,10 @@ +#!/usr/bin/env python + +from twisted.trial import unittest + +class T(unittest.TestCase): + def test_version(self): + import pycryptopp + if pycryptopp.__version__ != '0.5.24': + raise unittest.SkipTest("We can't tell if this worked because this system has a different version of pycryptopp already installed. See comment in misc/build_helpers/test-with-fake-dists.py for details.") + self.succeed()