import pytest
import os
import sys

test_data = [
    (b''),
    (os.urandom(8 * 1024)),
    # (b'0' * 8 * 1024),
    # (bytearray(b'')),
    # (bytearray(os.urandom(8 * 1024))),
    (bytearray(open(os.path.join(os.path.dirname(__file__), 'numpy_byte_array.bin'), 'rb').read()))
]

if sys.version_info > (2, 7):
    test_data += [
        (memoryview(b'')),
        (memoryview(os.urandom(8 * 1024)))
    ]


@pytest.fixture(
    params=test_data,
    ids=[
        'data' + str(i) for i in range(len(test_data))
    ]
)
def data(request):
    return request.param


@pytest.fixture(
    params=[
        ("double_buffer"),
        # ("ring_buffer"), # not implemented
    ]
)
def strategy(request):
    return request.param


test_buffer_size = sorted(
    [1,
     # 4,
     # 8,
     # 64,
     # 256,
     941,
     # 1 * 1024,
     # 4 * 1024,
     # 8 * 1024,
     # 16 * 1024,
     # 32 * 1024,
     64 * 1024,
     # 128 * 1024
     ]
)


@pytest.fixture(
    params=test_buffer_size,
    ids=[
        'buffer_size' + str(i) for i in range(len(test_buffer_size))
    ]
)
def buffer_size(request):
    return request.param


@pytest.fixture(
    params=[
        (
            {
                'store_comp_size': 1
            }
        ),
        (
            {
                'store_comp_size': 2
            }
        ),
        (
            {
                'store_comp_size': 4
            }
        ),
    ]
)
def store_comp_size(request):
    return request.param


@pytest.fixture(
    params=[
        (
            {
                'return_bytearray': True
            }
        ),
        (
            {
                'return_bytearray': False
            }
        ),
    ]
)
def return_bytearray(request):
    return request.param


@pytest.fixture
def c_return_bytearray(return_bytearray):
    return return_bytearray


@pytest.fixture
def d_return_bytearray(return_bytearray):
    return return_bytearray


@pytest.fixture(
    params=[
        ('default', None)
    ] + [
        ('fast', None)
    ] + [
        ('fast', {'acceleration': 2 * s}) for s in range(5)
    ] + [
        ('high_compression', None)
    ] + [
        ('high_compression', {'compression_level': 2 * s}) for s in range(9)
    ] + [
        (None, None)
    ]
)
def mode(request):
    return request.param


dictionary = [
    None,
    (0, 0),
    (100, 200),
    (0, 8 * 1024),
    os.urandom(8 * 1024)
]


@pytest.fixture(
    params=dictionary,
    ids=[
        'dictionary' + str(i) for i in range(len(dictionary))
    ]
)
def dictionary(request):
    return request.param