1#!perl -w 2 3use strict; 4 5use POSIX; 6use Test::More; 7 8# These tests are mainly to make sure that these arithmetic functions 9# exist and are accessible. They are not meant to be an exhaustive 10# test for the interface. 11 12sub between { 13 my ($low, $have, $high, $desc) = @_; 14 local $Test::Builder::Level = $Test::Builder::Level + 1; 15 16 cmp_ok($have, '>=', $low, $desc); 17 cmp_ok($have, '<=', $high, $desc); 18} 19 20is(acos(1), 0, "Basic acos(1) test"); 21between(3.14, acos(-1), 3.15, 'acos(-1)'); 22between(1.57, acos(0), 1.58, 'acos(0)'); 23is(asin(0), 0, "Basic asin(0) test"); 24cmp_ok(asin(1), '>', 1.57, "Basic asin(1) test"); 25cmp_ok(asin(-1), '<', -1.57, "Basic asin(-1) test"); 26cmp_ok(asin(1), '==', -asin(-1), 'asin(1) == -asin(-1)'); 27is(atan(0), 0, "Basic atan(0) test"); 28between(0.785, atan(1), 0.786, 'atan(1)'); 29between(-0.786, atan(-1), -0.785, 'atan(-1)'); 30cmp_ok(atan(1), '==', -atan(-1), 'atan(1) == -atan(-1)'); 31is(cosh(0), 1, "Basic cosh(0) test"); 32between(1.54, cosh(1), 1.55, 'cosh(1)'); 33between(1.54, cosh(-1), 1.55, 'cosh(-1)'); 34is(cosh(1), cosh(-1), 'cosh(1) == cosh(-1)'); 35is(floor(1.23441242), 1, "Basic floor(1.23441242) test"); 36is(floor(-1.23441242), -2, "Basic floor(-1.23441242) test"); 37is(fmod(3.5, 2.0), 1.5, "Basic fmod(3.5, 2.0) test"); 38is(join(" ", frexp(1)), "0.5 1", "Basic frexp(1) test"); 39is(ldexp(0,1), 0, "Basic ldexp(0,1) test"); 40is(log10(1), 0, "Basic log10(1) test"); 41is(log10(10), 1, "Basic log10(10) test"); 42is(join(" ", modf(1.76)), "0.76 1", "Basic modf(1.76) test"); 43is(sinh(0), 0, "Basic sinh(0) test"); 44between(1.17, sinh(1), 1.18, 'sinh(1)'); 45between(-1.18, sinh(-1), -1.17, 'sinh(-1)'); 46is(tan(0), 0, "Basic tan(0) test"); 47between(1.55, tan(1), 1.56, 'tan(1)'); 48between(1.55, tan(1), 1.56, 'tan(-1)'); 49cmp_ok(tan(1), '==', -tan(-1), 'tan(1) == -tan(-1)'); 50is(tanh(0), 0, "Basic tanh(0) test"); 51between(0.76, tanh(1), 0.77, 'tanh(1)'); 52between(-0.77, tanh(-1), -0.76, 'tanh(-1)'); 53cmp_ok(tanh(1), '==', -tanh(-1), 'tanh(1) == -tanh(-1)'); 54 55done_testing(); 56