test262/test/built-ins/Math/atan2/S15.8.2.5_A7.js

32 lines
748 B
JavaScript

// Copyright 2009 the Sputnik authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
info: >
If y is equal to +0 and x<0, Math.atan2(y,x) is an
implementation-dependent approximation to +PI
es5id: 15.8.2.5_A7
description: >
Checking if Math.atan2(y,x) is an approximation to +PI, where y is
equal to +0 and x<0
includes:
- $FAIL.js
- math_precision.js
- math_isequal.js
---*/
// CHECK#1
y = +0;
//prec = 0.00000000000001;
x = new Array();
x[0] = -0.000000000000001;
x[2] = -Infinity;
x[1] = -1;
xnum = 3;
for (i = 0; i < xnum; i++)
{
if (!isEqual(Math.atan2(y,x[i]), Math.PI))
$FAIL("#1: Math.abs(Math.atan2(" + y + ", " + x[i] + ") - Math.PI) >= " + prec);
}