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# This Source Code Form is subject to the terms of the Mozilla Public
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.

from __future__ import absolute_import, print_function
from __future__ import absolute_import, print_function

import json
import os
from argparse import Namespace
from cStringIO import StringIO
from cStringIO import StringIO

import mozinfo
import pytest
from manifestparser import expression
from moztest.selftest.fixtures import binary, setup_test_harness  # noqa
from moztest.selftest.fixtures import binary, setup_test_harness  # noqa

here = os.path.abspath(os.path.dirname(__file__))
setup_args = [False, 'reftest', 'reftest']


@pytest.fixture(scope='module')
@pytest.fixture(scope='module')
def normalize():
    """A function that can take a relative path and append it to the 'files'
    directory which contains the data necessary to run these tests.
    """


    def inner(path):
        if os.path.isabs(path):
            return path
        return os.path.join(here, 'files', path)


    return inner


@pytest.fixture
def parser(setup_test_harness):
def parser(setup_test_harness):
    setup_test_harness(*setup_args)
    cmdline = pytest.importorskip('reftestcommandline')
    return cmdline.DesktopArgumentsParser()



@pytest.fixture
def get_reftest(setup_test_harness, binary, parser):
    setup_test_harness(*setup_args)
    setup_test_harness(*setup_args)
    runreftest = pytest.importorskip('runreftest')
    harness_root = runreftest.SCRIPT_DIRECTORY

    build = parser.build_obj
    options = vars(parser.parse_args([]))
    options = vars(parser.parse_args([]))
    options.update({
        'app': binary,
        'focusFilterMode': 'non-needs-focus',
        'suite': 'reftest',
    })
    })

    if not os.path.isdir(build.bindir):
        package_root = os.path.dirname(harness_root)
        package_root = os.path.dirname(harness_root)
        options.update({
            'extraProfileFiles': [os.path.join(package_root, 'bin', 'plugins')],
            'reftestExtensionPath': os.path.join(harness_root, 'reftest'),
            'sandboxReadWhitelist': [here, os.environ['PYTHON_TEST_TMP']],
            'utilityPath': os.path.join(package_root, 'bin'),
            'utilityPath': os.path.join(package_root, 'bin'),
            'specialPowersExtensionPath': os.path.join(harness_root, 'specialpowers'),
        })

        if 'MOZ_FETCHES_DIR' in os.environ:
            options['sandboxReadWhitelist'].append(os.environ['MOZ_FETCHES_DIR'])
            options['sandboxReadWhitelist'].append(os.environ['MOZ_FETCHES_DIR'])
    else:
        options.update({
            'extraProfileFiles': [os.path.join(build.topobjdir, 'dist', 'plugins')],
            'sandboxReadWhitelist': [build.topobjdir, build.topsrcdir],
            'specialPowersExtensionPath': os.path.join(
            'specialPowersExtensionPath': os.path.join(
                build.distdir, 'xpi-stage', 'specialpowers'),
        })

    def inner(**opts):
        options.update(opts)
        options.update(opts)
        config = Namespace(**options)

        # This is pulled from `runreftest.run_test_harness` minus some error
        # checking that isn't necessary in this context. It should stay roughly
        # in sync.
        # in sync.
        reftest = runreftest.RefTest(config.suite)
        parser.validate(config, reftest)

        config.app = reftest.getFullPath(config.app)
        assert os.path.exists(config.app)
        assert os.path.exists(config.app)

        if config.xrePath is None:
            config.xrePath = os.path.dirname(config.app)


        return reftest, config
    return inner


@pytest.fixture  # noqa: F811
def runtests(get_reftest, normalize):


    def inner(*tests, **opts):
        assert len(tests) > 0
        opts['tests'] = map(normalize, tests)

        buf = StringIO()
        buf = StringIO()
        opts['log_raw'] = [buf]

        reftest, options = get_reftest(**opts)
        result = reftest.runTests(options.tests, options)


        out = json.loads('[' + ','.join(buf.getvalue().splitlines()) + ']')
        out = json.loads('[' + ','.join(buf.getvalue().splitlines()) + ']')
        buf.close()
        return result, out
    return inner



@pytest.fixture(autouse=True)  # noqa: F811
def skip_using_mozinfo(request, setup_test_harness):
    """Gives tests the ability to skip based on values from mozinfo.

    Example:
    Example:
        @pytest.mark.skip_mozinfo("!e10s || os == 'linux'")
        def test_foo():
            pass
    """


    setup_test_harness(*setup_args)
    runreftest = pytest.importorskip('runreftest')
    runreftest.update_mozinfo()

    skip_mozinfo = request.node.get_marker('skip_mozinfo')
    if skip_mozinfo:
        value = skip_mozinfo.args[0]
        value = skip_mozinfo.args[0]
        if expression.parse(value, **mozinfo.info):
            pytest.skip("skipped due to mozinfo match: \n{}".format(value))