110 lines
3.4 KiB
Python
110 lines
3.4 KiB
Python
"""
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Common utils for testing.
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These functions allow testing only some frameworks, not all.
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"""
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import logging
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import os
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import warnings
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from functools import lru_cache
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from typing import List, Tuple
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from einops import _backends
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__author__ = "Alex Rogozhnikov"
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# minimize noise in tests logging
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logging.getLogger("tensorflow").disabled = True
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logging.getLogger("matplotlib").disabled = True
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FLOAT_REDUCTIONS = ("min", "max", "sum", "mean", "prod") # not includes any/all
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def find_names_of_all_frameworks() -> List[str]:
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backend_subclasses = []
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backends = _backends.AbstractBackend.__subclasses__()
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while backends:
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backend = backends.pop()
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backends += backend.__subclasses__()
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backend_subclasses.append(backend)
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return [b.framework_name for b in backend_subclasses]
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ENVVAR_NAME = "EINOPS_TEST_BACKENDS"
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def unparse_backends(backend_names: List[str]) -> Tuple[str, str]:
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_known_backends = find_names_of_all_frameworks()
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for backend_name in backend_names:
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if backend_name not in _known_backends:
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raise RuntimeError(f"Unknown framework: {backend_name}")
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return ENVVAR_NAME, ",".join(backend_names)
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@lru_cache(maxsize=1)
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def parse_backends_to_test() -> List[str]:
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if ENVVAR_NAME not in os.environ:
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raise RuntimeError(f"Testing frameworks were not specified, env var {ENVVAR_NAME} not set")
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parsed_backends = os.environ[ENVVAR_NAME].split(",")
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_known_backends = find_names_of_all_frameworks()
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for backend_name in parsed_backends:
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if backend_name not in _known_backends:
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raise RuntimeError(f"Unknown framework: {backend_name}")
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return parsed_backends
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def is_backend_tested(backend: str) -> bool:
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"""Used to skip test if corresponding backend is not tested"""
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if backend not in find_names_of_all_frameworks():
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raise RuntimeError(f"Unknown framework {backend}")
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return backend in parse_backends_to_test()
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def collect_test_backends(symbolic=False, layers=False) -> List[_backends.AbstractBackend]:
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"""
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:param symbolic: symbolic or imperative frameworks?
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:param layers: layers or operations?
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:return: list of backends satisfying set conditions
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"""
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if not symbolic:
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if not layers:
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backend_types = [
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_backends.NumpyBackend,
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_backends.JaxBackend,
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_backends.TorchBackend,
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_backends.TensorflowBackend,
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_backends.OneFlowBackend,
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_backends.PaddleBackend,
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_backends.CupyBackend,
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]
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else:
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backend_types = [
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_backends.TorchBackend,
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_backends.OneFlowBackend,
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_backends.PaddleBackend,
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]
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else:
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if not layers:
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backend_types = [
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_backends.PyTensorBackend,
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]
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else:
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backend_types = [
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_backends.TFKerasBackend,
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]
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backend_names_to_test = parse_backends_to_test()
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result = []
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for backend_type in backend_types:
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if backend_type.framework_name not in backend_names_to_test:
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continue
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try:
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result.append(backend_type())
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except ImportError:
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# problem with backend installation fails a specific test function,
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# but will be skipped in all other test cases
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warnings.warn(f"backend could not be initialized for tests: {backend_type}", stacklevel=1)
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return result
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