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cirq.testing.assert_has_consistent_apply_unitary_for_various_exponents

Tests whether a value's _applyunitary is correct.

cirq.testing.assert_has_consistent_apply_unitary_for_various_exponents(
    val: Any,
    *,
    exponents=(0, 1, -1, 0.5, 0.25, -0.5, 0.1, sympy.Symbol('s'))
) -> None

Contrasts the effects of the value's _apply_unitary_ with the matrix returned by the value's _unitary_ method. Attempts this after attempting to raise the value to several exponents.

val The value under test. Should have a __pow__ method.
exponents The exponents to try. Defaults to a variety of special and arbitrary angles, as well as a parameterized angle (a symbol). If the value's __pow__ returns NotImplemented for any of these, they are skipped.