michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: 
michael@0: /**
michael@0:    File Name:          15.8.2.9.js
michael@0:    ECMA Section:       15.8.2.9  Math.floor(x)
michael@0:    Description:        return the greatest number value that is not greater
michael@0:    than the argument and is equal to a mathematical integer.
michael@0:    if the number is already an integer, return the number
michael@0:    itself.  special cases:
michael@0:    - if x is NaN       return NaN
michael@0:    - if x = +0         return +0
michael@0:    - if x = -0          return -0
michael@0:    - if x = Infinity   return Infinity
michael@0:    - if x = -Infinity  return -Infinity
michael@0:    - if ( -1 < x < 0 ) return -0
michael@0:    also:
michael@0:    -   the value of Math.floor(x) == -Math.ceil(-x)
michael@0:    Author:             christine@netscape.com
michael@0:    Date:               7 july 1997
michael@0: */
michael@0: 
michael@0: var SECTION = "15.8.2.9";
michael@0: var VERSION = "ECMA_1";
michael@0: startTest();
michael@0: var TITLE   = "Math.floor(x)";
michael@0: 
michael@0: writeHeaderToLog( SECTION + " "+ TITLE);
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "Math.floor.length",
michael@0: 	      1,
michael@0: 	      Math.floor.length );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "Math.floor()",
michael@0: 	      Number.NaN,
michael@0: 	      Math.floor() );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "Math.floor(void 0)",
michael@0: 	      Number.NaN,
michael@0: 	      Math.floor(void 0) );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "Math.floor(null)",
michael@0: 	      0,
michael@0: 	      Math.floor(null) );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "Math.floor(true)",
michael@0: 	      1,
michael@0: 	      Math.floor(true) );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "Math.floor(false)",
michael@0: 	      0,
michael@0: 	      Math.floor(false) );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "Math.floor('1.1')",
michael@0: 	      1,
michael@0: 	      Math.floor("1.1") );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "Math.floor('-1.1')",
michael@0: 	      -2,
michael@0: 	      Math.floor("-1.1") );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "Math.floor('0.1')",
michael@0: 	      0,
michael@0: 	      Math.floor("0.1") );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "Math.floor('-0.1')",
michael@0: 	      -1,
michael@0: 	      Math.floor("-0.1") );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "Math.floor(NaN)",
michael@0: 	      Number.NaN,
michael@0: 	      Math.floor(Number.NaN)  );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "Math.floor(NaN)==-Math.ceil(-NaN)",
michael@0: 	      false,
michael@0: 	      Math.floor(Number.NaN) == -Math.ceil(-Number.NaN) );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "Math.floor(0)",
michael@0: 	      0,
michael@0: 	      Math.floor(0)           );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "Math.floor(0)==-Math.ceil(-0)",
michael@0: 	      true,
michael@0: 	      Math.floor(0) == -Math.ceil(-0) );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "Math.floor(-0)",
michael@0: 	      -0,
michael@0: 	      Math.floor(-0)          );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "Infinity/Math.floor(-0)",
michael@0: 	      -Infinity,
michael@0: 	      Infinity/Math.floor(-0)          );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "Math.floor(-0)==-Math.ceil(0)",
michael@0: 	      true,
michael@0: 	      Math.floor(-0)== -Math.ceil(0) );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "Math.floor(Infinity)",
michael@0: 	      Number.POSITIVE_INFINITY,
michael@0: 	      Math.floor(Number.POSITIVE_INFINITY) );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "Math.floor(Infinity)==-Math.ceil(-Infinity)",
michael@0: 	      true,
michael@0: 	      Math.floor(Number.POSITIVE_INFINITY) == -Math.ceil(Number.NEGATIVE_INFINITY) );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "Math.floor(-Infinity)",
michael@0: 	      Number.NEGATIVE_INFINITY,
michael@0: 	      Math.floor(Number.NEGATIVE_INFINITY) );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "Math.floor(-Infinity)==-Math.ceil(Infinity)",
michael@0: 	      true,
michael@0: 	      Math.floor(Number.NEGATIVE_INFINITY) == -Math.ceil(Number.POSITIVE_INFINITY) );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "Math.floor(0.0000001)",
michael@0: 	      0,
michael@0: 	      Math.floor(0.0000001) );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "Math.floor(0.0000001)==-Math.ceil(0.0000001)", true,
michael@0: 	      Math.floor(0.0000001)==-Math.ceil(-0.0000001) );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "Math.floor(-0.0000001)",
michael@0: 	      -1,
michael@0: 	      Math.floor(-0.0000001) );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "Math.floor(0.0000001)==-Math.ceil(0.0000001)",
michael@0: 	      true,
michael@0: 	      Math.floor(-0.0000001)==-Math.ceil(0.0000001) );
michael@0: 
michael@0: test();