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"""Piglit integration for the now open sourced Khronos CTS tests being
developed at https://github.com/KhronosGroup/VK-GL-CTS

By default this will run NoContext test cases. Those desiring to run
only a subset of them should consider using the -t or -x options to
include or exclude tests.

For example:
./piglit run khr_noctx -c foo -t gl43 would run only gl43 tests

This integration requires some configuration in piglit.conf, or the
use of environment variables.

In piglit.conf one should set the following:
[khr_noctx]:bin -- Path to the glcts binary
[khr_noctx]:extra_args -- any extra arguments to be passed to cts
(optional)

Alternatively (or in addition, since environment variables have
precedence), one could set:
PIGLIT_KHR_NOCTX_BIN -- environment equivalent of [khr_noctx]:bin
PIGLIT_KHR_NOCTX_EXTRA_ARGS -- environment equivalent of
[khr_noctx]:extra_args

"""

import itertools

from framework import core
from framework.test import deqp

__all__ = ['profile']

_KHR_BIN = core.get_option('PIGLIT_KHR_NOCTX_BIN', ('khr_noctx', 'bin'),
                           required=True)

_EXTRA_ARGS = core.get_option('PIGLIT_KHR_NOCTX_EXTRA_ARGS', ('khr_noctx', 'extra_args'),
                              default='').split()


class DEQPKHRTest(deqp.DEQPBaseTest):
    deqp_bin = _KHR_BIN

    @property
    def extra_args(self):
        return super(DEQPKHRTest, self).extra_args + \
            [x for x in _EXTRA_ARGS if not x.startswith('--deqp-case')]


# Add all of the suites by default, users can use filters to remove them.
profile = deqp.make_profile(  # pylint: disable=invalid-name
    itertools.chain(
        deqp.iter_deqp_test_cases(
            deqp.gen_caselist_txt(_KHR_BIN, 'KHR-NoContext-cases.txt',
                                  _EXTRA_ARGS)),
    ),
    DEQPKHRTest)
