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import os
import pytest
import platform
from numpy.f2py.crackfortran import (
_selected_int_kind_func as selected_int_kind,
_selected_real_kind_func as selected_real_kind,
)
from . import util
class TestKind(util.F2PyTest):
sources = [util.getpath("tests", "src", "kind", "foo.f90")]
def test_int(self):
"""Test `int` kind_func for integers up to 10**40."""
selectedintkind = self.module.selectedintkind
for i in range(40):
assert selectedintkind(i) == selected_int_kind(
i
), f"selectedintkind({i}): expected {selected_int_kind(i)!r} but got {selectedintkind(i)!r}"
def test_real(self):
"""
Test (processor-dependent) `real` kind_func for real numbers
of up to 31 digits precision (extended/quadruple).
"""
selectedrealkind = self.module.selectedrealkind
for i in range(32):
assert selectedrealkind(i) == selected_real_kind(
i
), f"selectedrealkind({i}): expected {selected_real_kind(i)!r} but got {selectedrealkind(i)!r}"
@pytest.mark.xfail(platform.machine().lower().startswith("ppc"),
reason="Some PowerPC may not support full IEEE 754 precision")
def test_quad_precision(self):
"""
Test kind_func for quadruple precision [`real(16)`] of 32+ digits .
"""
selectedrealkind = self.module.selectedrealkind
for i in range(32, 40):
assert selectedrealkind(i) == selected_real_kind(
i
), f"selectedrealkind({i}): expected {selected_real_kind(i)!r} but got {selectedrealkind(i)!r}"