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Import of the watch repository from Pebble

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Matthieu Jeanson 2024-12-12 16:43:03 -08:00 • committed by Katharine Berry
commit 3b92768480
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third_party/jerryscript/tests/jerry/math-trig.js vendored Normal file
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// Copyright 2014 Samsung Electronics Co., Ltd.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
var delta = 0.0001;
var mod_m = 1.0 - delta;
var mod_p = 1.0 + delta;
assert (isNaN (Math.cos (NaN)));
assert ((Math.cos (+0.0)) == 1.0);
assert ((Math.cos (-0.0)) == 1.0);
assert (isNaN (Math.cos (Infinity)));
assert (isNaN (Math.cos (-Infinity)));
assert (Math.cos (Math.PI) > -1.0 * mod_p);
assert (Math.cos (Math.PI) < -1.0 * mod_m);
assert (Math.cos (Math.PI / 2) > -delta);
assert (Math.cos (Math.PI / 2) < +delta);
assert (Math.cos (-Math.PI / 2) > -delta);
assert (Math.cos (-Math.PI / 2) < +delta);
assert (Math.cos (Math.PI / 4) > mod_m * Math.SQRT2 / 2);
assert (Math.cos (Math.PI / 4) < mod_p * Math.SQRT2 / 2);
assert (Math.cos (-Math.PI / 4) > mod_m * Math.SQRT2 / 2);
assert (Math.cos (-Math.PI / 4) < mod_p * Math.SQRT2 / 2);
assert (isNaN (Math.sin (NaN)));
assert (1.0 / Math.sin (0.0) == Infinity);
assert (1.0 / Math.sin (-0.0) == -Infinity);
assert (isNaN (Math.sin (Infinity)));
assert (isNaN (Math.sin (-Infinity)));
assert (Math.sin (Math.PI) > -delta);
assert (Math.sin (Math.PI) < +delta);
assert (Math.sin (Math.PI / 2) > 1.0 * mod_m);
assert (Math.sin (Math.PI / 2) < 1.0 * mod_p);
assert (Math.sin (-Math.PI / 2) > -1.0 * mod_p);
assert (Math.sin (-Math.PI / 2) < -1.0 * mod_m);
assert (Math.sin (Math.PI / 4) > mod_m * Math.SQRT2 / 2);
assert (Math.sin (Math.PI / 4) < mod_p * Math.SQRT2 / 2);
assert (Math.sin (-Math.PI / 4) > -mod_p * Math.SQRT2 / 2);
assert (Math.sin (-Math.PI / 4) < -mod_m * Math.SQRT2 / 2);
var step = 0.01;
for (var x = -2 * Math.PI; x <= 2 * Math.PI; x += step)
{
var s = Math.sin (x);
var c = Math.cos (x);
var sqr_s = s * s;
var sqr_c = c * c;
assert (sqr_s + sqr_c > mod_m);
assert (sqr_s + sqr_c < mod_p);
}