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+/* -*- tab-width: 2; indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+
+/**
+ File Name: 15.8.2.5.js
+ ECMA Section: 15.8.2.5 atan2( y, x )
+ Description:
+
+ Author: christine@netscape.com
+ Date: 7 july 1997
+
+*/
+var SECTION = "15.8.2.5";
+var VERSION = "ECMA_1";
+var TITLE = "Math.atan2(x,y)";
+var BUGNUMBER="76111";
+
+startTest();
+
+writeHeaderToLog( SECTION + " "+ TITLE);
+
+new TestCase( SECTION,
+ "Math.atan2.length",
+ 2,
+ Math.atan2.length );
+
+new TestCase( SECTION,
+ "Math.atan2(NaN, 0)",
+ Number.NaN,
+ Math.atan2(Number.NaN,0) );
+
+new TestCase( SECTION,
+ "Math.atan2(null, null)",
+ 0,
+ Math.atan2(null, null) );
+
+new TestCase( SECTION,
+ "Math.atan2(void 0, void 0)",
+ Number.NaN,
+ Math.atan2(void 0, void 0) );
+
+new TestCase( SECTION,
+ "Math.atan2()",
+ Number.NaN,
+ Math.atan2() );
+
+new TestCase( SECTION,
+ "Math.atan2(0, NaN)",
+ Number.NaN,
+ Math.atan2(0,Number.NaN) );
+
+new TestCase( SECTION,
+ "Math.atan2(1, 0)",
+ Math.PI/2,
+ Math.atan2(1,0) );
+
+new TestCase( SECTION,
+ "Math.atan2(1,-0)",
+ Math.PI/2,
+ Math.atan2(1,-0) );
+
+new TestCase( SECTION,
+ "Math.atan2(0,0.001)",
+ 0,
+ Math.atan2(0,0.001) );
+
+new TestCase( SECTION,
+ "Math.atan2(0,0)",
+ 0,
+ Math.atan2(0,0) );
+
+new TestCase( SECTION,
+ "Math.atan2(0, -0)",
+ Math.PI,
+ Math.atan2(0,-0) );
+
+new TestCase( SECTION,
+ "Math.atan2(0, -1)",
+ Math.PI,
+ Math.atan2(0, -1) );
+
+new TestCase( SECTION,
+ "Math.atan2(-0, 1)",
+ -0,
+ Math.atan2(-0, 1) );
+
+new TestCase( SECTION,
+ "Infinity/Math.atan2(-0, 1)",
+ -Infinity,
+ Infinity/Math.atan2(-0,1) );
+
+new TestCase( SECTION,
+ "Math.atan2(-0, 0)",
+ -0,
+ Math.atan2(-0,0) );
+
+new TestCase( SECTION,
+ "Math.atan2(-0, -0)",
+ -Math.PI,
+ Math.atan2(-0, -0) );
+
+new TestCase( SECTION,
+ "Math.atan2(-0, -1)",
+ -Math.PI,
+ Math.atan2(-0, -1) );
+
+new TestCase( SECTION,
+ "Math.atan2(-1, 0)",
+ -Math.PI/2,
+ Math.atan2(-1, 0) );
+
+new TestCase( SECTION,
+ "Math.atan2(-1, -0)",
+ -Math.PI/2,
+ Math.atan2(-1, -0) );
+
+new TestCase( SECTION,
+ "Math.atan2(1, Infinity)",
+ 0,
+ Math.atan2(1, Number.POSITIVE_INFINITY) );
+
+new TestCase( SECTION,
+ "Math.atan2(1,-Infinity)",
+ Math.PI,
+ Math.atan2(1, Number.NEGATIVE_INFINITY) );
+
+new TestCase( SECTION,
+ "Math.atan2(-1, Infinity)",
+ -0,
+ Math.atan2(-1,Number.POSITIVE_INFINITY) );
+
+new TestCase( SECTION,
+ "Infinity/Math.atan2(-1, Infinity)",
+ -Infinity,
+ Infinity/Math.atan2(-1,Infinity) );
+
+new TestCase( SECTION,
+ "Math.atan2(-1,-Infinity)",
+ -Math.PI,
+ Math.atan2(-1,Number.NEGATIVE_INFINITY) );
+
+new TestCase( SECTION,
+ "Math.atan2(Infinity, 0)",
+ Math.PI/2,
+ Math.atan2(Number.POSITIVE_INFINITY, 0) );
+
+new TestCase( SECTION,
+ "Math.atan2(Infinity, 1)",
+ Math.PI/2,
+ Math.atan2(Number.POSITIVE_INFINITY, 1) );
+
+new TestCase( SECTION,
+ "Math.atan2(Infinity,-1)",
+ Math.PI/2,
+ Math.atan2(Number.POSITIVE_INFINITY,-1) );
+
+new TestCase( SECTION,
+ "Math.atan2(Infinity,-0)",
+ Math.PI/2,
+ Math.atan2(Number.POSITIVE_INFINITY,-0) );
+
+new TestCase( SECTION,
+ "Math.atan2(-Infinity, 0)",
+ -Math.PI/2,
+ Math.atan2(Number.NEGATIVE_INFINITY, 0) );
+
+new TestCase( SECTION,
+ "Math.atan2(-Infinity,-0)",
+ -Math.PI/2,
+ Math.atan2(Number.NEGATIVE_INFINITY,-0) );
+
+new TestCase( SECTION,
+ "Math.atan2(-Infinity, 1)",
+ -Math.PI/2,
+ Math.atan2(Number.NEGATIVE_INFINITY, 1) );
+
+new TestCase( SECTION,
+ "Math.atan2(-Infinity, -1)",
+ -Math.PI/2,
+ Math.atan2(Number.NEGATIVE_INFINITY,-1) );
+
+new TestCase( SECTION,
+ "Math.atan2(Infinity, Infinity)",
+ Math.PI/4,
+ Math.atan2(Number.POSITIVE_INFINITY, Number.POSITIVE_INFINITY) );
+
+new TestCase( SECTION,
+ "Math.atan2(Infinity, -Infinity)",
+ 3*Math.PI/4,
+ Math.atan2(Number.POSITIVE_INFINITY, Number.NEGATIVE_INFINITY) );
+
+new TestCase( SECTION,
+ "Math.atan2(-Infinity, Infinity)",
+ -Math.PI/4,
+ Math.atan2(Number.NEGATIVE_INFINITY, Number.POSITIVE_INFINITY) );
+
+new TestCase( SECTION,
+ "Math.atan2(-Infinity, -Infinity)",
+ -3*Math.PI/4,
+ Math.atan2(Number.NEGATIVE_INFINITY, Number.NEGATIVE_INFINITY) );
+
+new TestCase( SECTION,
+ "Math.atan2(-1, 1)",
+ -Math.PI/4,
+ Math.atan2( -1, 1) );
+
+test();