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import os
import pytest
import bitsandbytes as bnb
from typing import List, NamedTuple
from bitsandbytes.cuda_setup import (
CUDA_RUNTIME_LIB,
evaluate_cuda_setup,
get_cuda_runtime_lib_path,
tokenize_paths,
)
class InputAndExpectedOutput(NamedTuple):
input: str
output: str
HAPPY_PATH__LD_LIB_TEST_PATHS: List[InputAndExpectedOutput] = [
(
f"some/other/dir:dir/with/{CUDA_RUNTIME_LIB}",
f"dir/with/{CUDA_RUNTIME_LIB}",
),
(
f":some/other/dir:dir/with/{CUDA_RUNTIME_LIB}",
f"dir/with/{CUDA_RUNTIME_LIB}",
),
(
f"some/other/dir:dir/with/{CUDA_RUNTIME_LIB}:",
f"dir/with/{CUDA_RUNTIME_LIB}",
),
(
f"some/other/dir::dir/with/{CUDA_RUNTIME_LIB}",
f"dir/with/{CUDA_RUNTIME_LIB}",
),
(
f"dir/with/{CUDA_RUNTIME_LIB}:some/other/dir",
f"dir/with/{CUDA_RUNTIME_LIB}",
),
(
f"dir/with/{CUDA_RUNTIME_LIB}:other/dir/libcuda.so",
f"dir/with/{CUDA_RUNTIME_LIB}",
),
]
@pytest.fixture(params=HAPPY_PATH__LD_LIB_TEST_PATHS)
def happy_path_path_string(tmpdir, request):
for path in tokenize_paths(request.param):
test_dir.mkdir()
if CUDA_RUNTIME_LIB in path:
(test_input / CUDA_RUNTIME_LIB).touch()
@pytest.mark.parametrize("test_input, expected", HAPPY_PATH__LD_LIB_TEST_PATHS)
def test_get_cuda_runtime_lib_path__happy_path(
tmp_path, test_input: str, expected: str
):
for path in tokenize_paths(test_input):
path.mkdir()
(path / CUDA_RUNTIME_LIB).touch()
assert get_cuda_runtime_lib_path(test_input) == expected
UNHAPPY_PATH__LD_LIB_TEST_PATHS = [
f"a/b/c/{CUDA_RUNTIME_LIB}:d/e/f/{CUDA_RUNTIME_LIB}",
f"a/b/c/{CUDA_RUNTIME_LIB}:d/e/f/{CUDA_RUNTIME_LIB}:g/h/j/{CUDA_RUNTIME_LIB}",
]
@pytest.mark.parametrize("test_input", UNHAPPY_PATH__LD_LIB_TEST_PATHS)
def test_get_cuda_runtime_lib_path__unhappy_path(tmp_path, test_input: str):
test_input = tmp_path / test_input
(test_input / CUDA_RUNTIME_LIB).touch()
with pytest.raises(FileNotFoundError) as err_info:
get_cuda_runtime_lib_path(test_input)
assert all(match in err_info for match in {"duplicate", CUDA_RUNTIME_LIB})
def test_get_cuda_runtime_lib_path__non_existent_dir(capsys, tmp_path):
existent_dir = tmp_path / "a/b"
existent_dir.mkdir()
non_existent_dir = tmp_path / "c/d" # non-existent dir
test_input = ":".join([str(existent_dir), str(non_existent_dir)])
get_cuda_runtime_lib_path(test_input)
std_err = capsys.readouterr().err
assert all(match in std_err for match in {"WARNING", "non-existent"})
def test_full_system():
## this only tests the cuda version and not compute capability
version = ''
if 'CONDA_PREFIX' in os.environ:
ls_output, err = bnb.utils.execute_and_return(f'ls -l {os.environ["CONDA_PREFIX"]}/lib/libcudart.so')
major, minor, revision = ls_output.split(' ')[-1].replace('libcudart.so.', '').split('.')
version = float(f'{major}.{minor}')
if version == '' and 'LD_LIBRARY_PATH':
ld_path = os.environ["LD_LIBRARY_PATH"]
paths = ld_path.split(":")
version = ""
for p in paths:
if "cuda" in p:
idx = p.rfind("cuda-")
version = p[idx + 5 : idx + 5 + 4].replace("/", "")
version = float(version)
break
assert version > 0
binary_name = evaluate_cuda_setup()
binary_name = binary_name.replace("libbitsandbytes_cuda", "")
assert binary_name.startswith(str(version).replace(".", ""))
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