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Diffstat (limited to 'tests/test_pypi.py')
-rw-r--r-- | tests/test_pypi.py | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/tests/test_pypi.py b/tests/test_pypi.py new file mode 100644 index 0000000..b3425e5 --- /dev/null +++ b/tests/test_pypi.py @@ -0,0 +1,82 @@ +import os +import subprocess + +import virtualenv +from setuptools.extern.six.moves import http_client +from setuptools.extern.six.moves import xmlrpc_client + +TOP = 200 +PYPI_HOSTNAME = 'pypi.python.org' + + +def rpc_pypi(method, *args): + """Call an XML-RPC method on the Pypi server.""" + conn = http_client.HTTPSConnection(PYPI_HOSTNAME) + headers = {'Content-Type': 'text/xml'} + payload = xmlrpc_client.dumps(args, method) + + conn.request("POST", "/pypi", payload, headers) + response = conn.getresponse() + if response.status == 200: + result = xmlrpc_client.loads(response.read())[0][0] + return result + else: + raise RuntimeError("Unable to download the list of top " + "packages from Pypi.") + + +def get_top_packages(limit): + """Collect the name of the top packages on Pypi.""" + packages = rpc_pypi('top_packages') + return packages[:limit] + + +def _package_install(package_name, tmp_dir=None, local_setuptools=True): + """Try to install a package and return the exit status. + + This function creates a virtual environment, install setuptools using pip + and then install the required package. If local_setuptools is True, it + will install the local version of setuptools. + """ + package_dir = os.path.join(tmp_dir, "test_%s" % package_name) + if not local_setuptools: + package_dir = package_dir + "_baseline" + + virtualenv.create_environment(package_dir) + + pip_path = os.path.join(package_dir, "bin", "pip") + if local_setuptools: + subprocess.check_call([pip_path, "install", "."]) + returncode = subprocess.call([pip_path, "install", package_name]) + return returncode + + +def test_package_install(package_name, tmpdir): + """Test to verify the outcome of installing a package. + + This test compare that the return code when installing a package is the + same as with the current stable version of setuptools. + """ + new_exit_status = _package_install(package_name, tmp_dir=str(tmpdir)) + if new_exit_status: + print("Installation failed, testing against stable setuptools", + package_name) + old_exit_status = _package_install(package_name, tmp_dir=str(tmpdir), + local_setuptools=False) + assert new_exit_status == old_exit_status + + +def pytest_generate_tests(metafunc): + """Generator function for test_package_install. + + This function will generate calls to test_package_install. If a package + list has been specified on the command line, it will be used. Otherwise, + Pypi will be queried to get the current list of top packages. + """ + if "package_name" in metafunc.fixturenames: + if not metafunc.config.option.package_name: + packages = get_top_packages(TOP) + packages = [name for name, downloads in packages] + else: + packages = metafunc.config.option.package_name + metafunc.parametrize("package_name", packages) |