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+/* The contents of this file are subject to the Netscape Public
+ * License Version 1.1 (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.mozilla.org/NPL/
+ *
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ *
+ * The Original Code is Mozilla Communicator client code, released March
+ * 31, 1998.
+ *
+ * The Initial Developer of the Original Code is Netscape Communications
+ * Corporation. Portions created by Netscape are
+ * Copyright (C) 1998 Netscape Communications Corporation. All
+ * Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ */
+/**
+ File Name: 15.8.2.15.js
+ ECMA Section: 15.8.2.15 Math.round(x)
+ Description: return the greatest number value that is closest to the
+ argument and is an integer. if two integers are equally
+ close to the argument. then the result is the number value
+ that is closer to Infinity. if the argument is an integer,
+ return the argument.
+ special cases:
+ - if x is NaN return NaN
+ - if x = +0 return +0
+ - if x = -0 return -0
+ - if x = Infinity return Infinity
+ - if x = -Infinity return -Infinity
+ - if 0 < x < 0.5 return 0
+ - if -0.5 <= x < 0 return -0
+ example:
+ Math.round( 3.5 ) == 4
+ Math.round( -3.5 ) == 3
+ also:
+ - Math.round(x) == Math.floor( x + 0.5 )
+ except if x = -0. in that case, Math.round(x) = -0
+
+ and Math.floor( x+0.5 ) = +0
+
+
+ Author: christine@netscape.com
+ Date: 7 july 1997
+*/
+
+ var SECTION = "15.8.2.15";
+ var VERSION = "ECMA_1";
+ startTest();
+ var TITLE = "Math.round(x)";
+ var BUGNUMBER="331411";
+
+ var EXCLUDE = "true";
+
+ writeHeaderToLog( SECTION + " "+ TITLE);
+
+ var testcases = getTestCases();
+ test();
+
+function getTestCases() {
+ var array = new Array();
+ var item = 0;
+
+ array[item++] = new TestCase( SECTION, "Math.round.length", 1, Math.round.length );
+
+ array[item++] = new TestCase( SECTION, "Math.round()", Number.NaN, Math.round() );
+ array[item++] = new TestCase( SECTION, "Math.round(null)", 0, Math.round(0) );
+ array[item++] = new TestCase( SECTION, "Math.round(void 0)", Number.NaN, Math.round(void 0) );
+ array[item++] = new TestCase( SECTION, "Math.round(true)", 1, Math.round(true) );
+ array[item++] = new TestCase( SECTION, "Math.round(false)", 0, Math.round(false) );
+ array[item++] = new TestCase( SECTION, "Math.round('.99999')", 1, Math.round('.99999') );
+ array[item++] = new TestCase( SECTION, "Math.round('12345e-2')", 123, Math.round('12345e-2') );
+
+ array[item++] = new TestCase( SECTION, "Math.round(NaN)", Number.NaN, Math.round(Number.NaN) );
+ array[item++] = new TestCase( SECTION, "Math.round(0)", 0, Math.round(0) );
+ array[item++] = new TestCase( SECTION, "Math.round(-0)", -0, Math.round(-0));
+ array[item++] = new TestCase( SECTION, "Infinity/Math.round(-0)", -Infinity, Infinity/Math.round(-0) );
+
+ array[item++] = new TestCase( SECTION, "Math.round(Infinity)", Number.POSITIVE_INFINITY, Math.round(Number.POSITIVE_INFINITY));
+ array[item++] = new TestCase( SECTION, "Math.round(-Infinity)",Number.NEGATIVE_INFINITY, Math.round(Number.NEGATIVE_INFINITY));
+ array[item++] = new TestCase( SECTION, "Math.round(0.49)", 0, Math.round(0.49));
+ array[item++] = new TestCase( SECTION, "Math.round(0.5)", 1, Math.round(0.5));
+ array[item++] = new TestCase( SECTION, "Math.round(0.51)", 1, Math.round(0.51));
+
+ array[item++] = new TestCase( SECTION, "Math.round(-0.49)", -0, Math.round(-0.49));
+ array[item++] = new TestCase( SECTION, "Math.round(-0.5)", -0, Math.round(-0.5));
+ array[item++] = new TestCase( SECTION, "Infinity/Math.round(-0.49)", -Infinity, Infinity/Math.round(-0.49));
+ array[item++] = new TestCase( SECTION, "Infinity/Math.round(-0.5)", -Infinity, Infinity/Math.round(-0.5));
+
+ array[item++] = new TestCase( SECTION, "Math.round(-0.51)", -1, Math.round(-0.51));
+ array[item++] = new TestCase( SECTION, "Math.round(3.5)", 4, Math.round(3.5));
+ array[item++] = new TestCase( SECTION, "Math.round(-3.5)", -3, Math.round(-3));
+
+ return ( array );
+}
+function test() {
+ for ( tc=0; tc < testcases.length; tc++ ) {
+ testcases[tc].passed = writeTestCaseResult(
+ testcases[tc].expect,
+ testcases[tc].actual,
+ testcases[tc].description +" = "+
+ testcases[tc].actual );
+
+ testcases[tc].reason += ( testcases[tc].passed ) ? "" : "wrong value ";
+ }
+ stopTest();
+ return ( testcases );
+} \ No newline at end of file