Generate test cases for NumPy gh-10741

test.py

import numpy as np
import pytest
import hypothesis
from hypothesis import given, settings
from hypothesis import strategies as st
from hypothesis.extra import numpy as hynp

@settings(max_examples=5)
@given(st.floats(min_value=0, max_value=1, width=64),
       st.integers(np.finfo(np.double).minexp, np.finfo(np.double).maxexp - 1)
       )
def test_produce_f_values_double(frac_val, int_val):
    f = np.ldexp(frac_val, int_val, dtype=np.double)
    print("cases for double")
    print("frac_val:", frac_val)
    print("int_val:", int_val)
    print("f:", f)

@settings(max_examples=5)
@given(st.floats(min_value=0, max_value=1, width=64),
       st.integers(np.finfo(np.longdouble).minexp, np.finfo(np.longdouble).maxexp - 1)
       )
def test_produce_f_values_longdouble(frac_val, int_val):
    f = np.ldexp(frac_val, int_val, dtype=np.longdouble)
    print("cases for longdouble")
    print("frac_val:", frac_val)
    print("int_val:", int_val)
    print("f:", f)

@settings(max_examples=5)
@given(st.floats(min_value=0, max_value=1, width=64),
       st.integers(np.finfo(np.single).minexp, np.finfo(np.single).maxexp - 1)
       )
def test_produce_f_values_single(frac_val, int_val):
    f = np.ldexp(frac_val, int_val, dtype=np.single)
    print("cases for single")
    print("frac_val:", frac_val)
    print("int_val:", int_val)
    print("f:", f)

@settings(max_examples=5)
@given(st.floats(min_value=0, max_value=1, width=64),
       st.integers(np.finfo(np.half).minexp, np.finfo(np.half).maxexp - 1)
       )
def test_produce_f_values_half(frac_val, int_val):
    f = np.ldexp(frac_val, int_val, dtype=np.half)
    print("cases for half")
    print("frac_val:", frac_val)
    print("int_val:", int_val)
    print("f:", f)