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// Copyright 2009 the Sputnik authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/**
* @name: S15.8.2.5_A17;
* @section: 15.8.2.5;
* @assertion: If y<0 and y is finite and x is equal to -Infinity, Math.atan2(y,x) is an implementation-dependent approximation to -PI;
* @description: Checking if Math.atan2(y,x) is an approximation to -PI, where y<0 and y is finite and x is equal to -Infinity;
*/
// Converted for Test262 from original Sputnik source
ES5Harness.registerTest( {
id: "S15.8.2.5_A17",
path: "TestCases/15_Native/15.8_The_Math_Object/15.8.2_Function_Properties_of_the_Math_Object/15.8.2.5_atan2/S15.8.2.5_A17.js",
assertion: "If y<0 and y is finite and x is equal to -Infinity, Math.atan2(y,x) is an implementation-dependent approximation to -PI",
description: "Checking if Math.atan2(y,x) is an approximation to -PI, where y<0 and y is finite and x is equal to -Infinity",
test: function testcase() {
$INCLUDE("math_precision.js");
$INCLUDE("math_isequal.js");
// CHECK#1
x = -Infinity;
y = new Array();
y[0] = -0.000000000000001;
y[1] = -1;
y[2] = -1.7976931348623157E308; //largest (by module) finite number
ynum = 3;
for (i = 0; i < ynum; i++)
{
if (!isEqual(Math.atan2(y[i],x), -Math.PI))
$FAIL("#1: Math.abs(Math.atan2(" + y[i] + ", " + x + ") + Math.PI) >= " + prec);
}
}
});
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