test262/test/built-ins/Math/tanh/tanh-specialVals.js

19 lines
767 B
JavaScript

// Copyright 2015 Microsoft Corporation. All rights reserved.
// This code is governed by the license found in the LICENSE file.
/*---
description: Math.tanh with special values
es6id: 20.2.2.34
---*/
assert.sameValue(Math.tanh(NaN), Number.NaN,
"Math.tanh produces incorrect output for NaN");
assert.sameValue(Math.tanh(Number.NEGATIVE_INFINITY), -1,
"Math.tanh should produce -1 for Number.NEGATIVE_INFINITY");
assert.sameValue(Math.tanh(Number.POSITIVE_INFINITY), 1,
"Math.tanh should produce 1 for Number.POSITIVE_INFINITY");
assert.sameValue(1/Math.tanh(-0), Number.NEGATIVE_INFINITY,
"Math.tanh should produce -0 for -0");
assert.sameValue(1/Math.tanh(0), Number.POSITIVE_INFINITY,
"Math.tanh should produce +0 for +0");