flash-attention/csrc/cutlass/test/python/pycute/test_complement.py

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"""
Unit tests for pycute.complement
"""

import logging
import unittest

from pycute import *

_LOGGER = logging.getLogger(__name__)


class TestComplement(unittest.TestCase):
  def helper_test_complement(self, layout):
    layoutR = complement(layout)

    _LOGGER.debug(f"{layout}  =>  {layoutR}")

    # Post-condition: test disjointness of the codomains
    for a in range(size(layout)):
      for b in range(size(layoutR)):
        assert (layout(a) != layoutR(b)) or (layout(a) == 0 and layoutR(b) == 0)

  def test_complement(self):
    test = Layout(1,0)
    self.helper_test_complement(test)

    test = Layout(1,1)
    self.helper_test_complement(test)

    test = Layout(4,0)
    self.helper_test_complement(test)

    test = Layout((2,4),(1,2))
    self.helper_test_complement(test)

    test = Layout((2,3),(1,2))
    self.helper_test_complement(test)

    test = Layout((2,4),(1,4))
    self.helper_test_complement(test)

    test = Layout((2,4,8),(8,1,64))
    self.helper_test_complement(test)

    test = Layout(((2,2),(2,2)),((1,4),(8,32)))
    self.helper_test_complement(test)

    test = Layout((2,(3,4)),(3,(1,6)))
    self.helper_test_complement(test)

    test = Layout((4,6),(1,6))
    self.helper_test_complement(test)

    test = Layout((4,10),(1,10))
    self.helper_test_complement(test)


if __name__ == "__main__":
  unittest.main()