def test_float_to_string(self, floating, string):
assert np.can_cast(floating, string)
# 100 is long enough to hold any formatted floating
if uses_new_casts():
assert np.can_cast(floating, f"{string}100")
else:
assert not np.can_cast(floating, f"{string}100")
assert np.can_cast(floating, f"{string}100", casting="same_kind")
def test_to_void(self):
# But in general, we do consider these safe:
assert np.can_cast("d", "V")
assert np.can_cast("S20", "V")
# Do not consider it a safe cast if the void is too smaller:
if uses_new_casts():
assert not np.can_cast("d", "V1")
assert not np.can_cast("S20", "V1")
assert not np.can_cast("U1", "V1")
# Structured to unstructured is just like any other:
assert np.can_cast("d,i", "V", casting="same_kind")
else:
assert np.can_cast("d", "V1")
assert np.can_cast("S20", "V1")
assert np.can_cast("U1", "V1")
assert not np.can_cast("d,i", "V", casting="same_kind")
