def test_install_requirements_with_options(self, tmpdir, finder, session,
                                               options):
        global_option = '--dry-run'
        install_option = '--prefix=/opt'

        content = '''
        --only-binary :all:
        INITools==2.0 --global-option="{global_option}" \
                        --install-option "{install_option}"
        '''.format(global_option=global_option, install_option=install_option)

        with requirements_file(content, tmpdir) as reqs_file:
            req = next(parse_requirements(reqs_file.abspath,
                                          finder=finder,
                                          options=options,
                                          session=session))

        req.source_dir = os.curdir
        with patch.object(subprocess, 'Popen') as popen:
            popen.return_value.stdout.readline.return_value = b""
            try:
                req.install([])
            except:
                pass

            last_call = popen.call_args_list[-1]
            args = last_call[0][0]
            assert (
                0 < args.index(global_option) < args.index('install') <
                args.index(install_option)
            )
        assert options.format_control.no_binary == {':all:'}
        assert options.format_control.only_binary == set()

 def test_missing_hash_with_require_hashes_in_reqs_file(self, data, tmpdir):
     """--require-hashes in a requirements file should make its way to the
     RequirementSet.
     """
     req_set = self.basic_reqset(require_hashes=False)
     session = PipSession()
     finder = PackageFinder([data.find_links], [], session=session)
     command = InstallCommand()
     with requirements_file("--require-hashes", tmpdir) as reqs_file:
         options, args = command.parse_args(["-r", reqs_file])
         command.populate_requirement_set(req_set, args, options, finder, session, command.name, wheel_cache=None)
     assert req_set.require_hashes

def test_relative_requirements_file(script, data):
    """
    Test installing from a requirements file with a relative path. For path
    URLs, use an egg= definition.

    """
    egg_info_file = (
        script.site_packages / 'FSPkg-0.1.dev0-py%s.egg-info' % pyversion
    )
    egg_link_file = (
        script.site_packages / 'FSPkg.egg-link'
    )
    package_folder = script.site_packages / 'fspkg'

    # Compute relative install path to FSPkg from scratch path.
    full_rel_path = data.packages.join('FSPkg') - script.scratch_path
    full_rel_url = 'file:' + full_rel_path + '#egg=FSPkg'
    embedded_rel_path = script.scratch_path.join(full_rel_path)

    # For each relative path, install as either editable or not using either
    # URLs with egg links or not.
    for req_path in (full_rel_path, full_rel_url, embedded_rel_path):
        req_path = req_path.replace(os.path.sep, '/')
        # Regular install.
        with requirements_file(req_path + '\n',
                               script.scratch_path) as reqs_file:
            result = script.pip('install', '-vvv', '-r', reqs_file.name,
                                cwd=script.scratch_path)
            assert egg_info_file in result.files_created, str(result)
            assert package_folder in result.files_created, str(result)
            script.pip('uninstall', '-y', 'fspkg')

        # Editable install.
        with requirements_file('-e ' + req_path + '\n',
                               script.scratch_path) as reqs_file:
            result = script.pip('install', '-vvv', '-r', reqs_file.name,
                                cwd=script.scratch_path)
            assert egg_link_file in result.files_created, str(result)
            script.pip('uninstall', '-y', 'fspkg')

def test_hashed_install_failure(script, data, tmpdir):
    """Test that wrong hashes stop installation.

    This makes sure prepare_files() is called in the course of installation
    and so has the opportunity to halt if hashes are wrong. Checks on various
    kinds of hashes are in test_req.py.

    """
    with requirements_file('simple2==1.0 --hash=sha256:9336af72ca661e6336eb87b'
                           'c7de3e8844d853e3848c2b9bbd2e8bf01db88c2c\n',
                           tmpdir) as reqs_file:
        result = script.pip_install_local('-r',
                                          reqs_file.abspath,
                                          expect_error=True)
    assert len(result.files_created) == 0

def test_hashed_install_success(script, data, tmpdir):
    """
    Test that installing various sorts of requirements with correct hashes
    works.

    Test file URLs and index packages (which become HTTP URLs behind the
    scenes).

    """
    file_url = path_to_url(
        (data.packages / 'simple-1.0.tar.gz').abspath)
    with requirements_file(
            'simple2==1.0 --hash=sha256:9336af72ca661e6336eb87bc7de3e8844d853e'
            '3848c2b9bbd2e8bf01db88c2c7\n'
            '{simple} --hash=sha256:393043e672415891885c9a2a0929b1af95fb866d6c'
            'a016b42d2e6ce53619b653'.format(simple=file_url),
            tmpdir) as reqs_file:
        script.pip_install_local('-r', reqs_file.abspath, expect_error=False)