add cISO_CEILING formula

cell/.unit-tests/FormulaTests.js

@@ -810,7 +810,7 @@ $( function () {
 		strictEqual( oParser.calculate().getValue(), -4, 'FLOOR.MATH(-5.5, 2, -1)' );
 	} );
 
-	test( "Test: \"CEILING.PRECISE\"", function () {
+	test( "Test: \"CEILING.MATH\"", function () {
 		oParser = new parserFormula( 'CEILING.MATH(24.3, 5)', "A1", ws );
 		ok( oParser.parse(), 'CEILING.MATH(24.3, 5)' );
 		strictEqual( oParser.calculate().getValue(), 25, 'CEILING.MATH(24.3, 5)' );
@@ -858,6 +858,32 @@ $( function () {
 		strictEqual( oParser.calculate().getValue(), "#NAME?", 'CEILING.PRECISE(test)' );
 	} );
 
+	test( "Test: \"ISO.CEILING\"", function () {
+		oParser = new parserFormula( 'ISO.CEILING(4.3)', "A1", ws );
+		ok( oParser.parse(), 'ISO.CEILING(4.3)' );
+		strictEqual( oParser.calculate().getValue(), 5, 'ISO.CEILING(4.3)' );
+
+		oParser = new parserFormula( 'ISO.CEILING(-4.3)', "A1", ws );
+		ok( oParser.parse(), 'ISO.CEILING(-4.3)' );
+		strictEqual( oParser.calculate().getValue(), -4, 'ISO.CEILING(-4.3)' );
+
+		oParser = new parserFormula( 'ISO.CEILING(4.3, 2)', "A1", ws );
+		ok( oParser.parse(), 'ISO.CEILING(4.3, 2)' );
+		strictEqual( oParser.calculate().getValue(), 6, 'ISO.CEILING(4.3, 2)' );
+
+		oParser = new parserFormula( 'ISO.CEILING(4.3,-2)', "A1", ws );
+		ok( oParser.parse(), 'ISO.CEILING(4.3,-2)' );
+		strictEqual( oParser.calculate().getValue(), 6, 'ISO.CEILING(4.3,-2)' );
+
+		oParser = new parserFormula( 'ISO.CEILING(-4.3,2)', "A1", ws );
+		ok( oParser.parse(), 'ISO.CEILING(-4.3,2)' );
+		strictEqual( oParser.calculate().getValue(), -4, 'ISO.CEILING(-4.3,2)' );
+
+		oParser = new parserFormula( 'ISO.CEILING(-4.3,-2)', "A1", ws );
+		ok( oParser.parse(), 'ISO.CEILING(-4.3,-2)' );
+		strictEqual( oParser.calculate().getValue(), -4, 'ISO.CEILING(-4.3,-2)' );
+	} );
+
 	test( "Test: \"ARABIC('LVII')\"", function () {
 		oParser = new parserFormula( 'ARABIC("LVII")', "A1", ws );
 		ok( oParser.parse() );

cell/model/FormulaObjects/mathematicFunctions.js

@@ -1875,12 +1875,50 @@
 	 * @constructor
 	 * @extends {AscCommonExcel.cBaseFunction}
 	 */
+	//TODO точная копия функции CEILING.PRECISE. зачем excel две одинаковые функции?
 	function cISO_CEILING() {
-		cBaseFunction.call(this, "ISO_CEILING");
+		this.name = "ISO.CEILING";
+		this.value = null;
+		this.argumentsCurrent = 0;
 	}
 
 	cISO_CEILING.prototype = Object.create(cBaseFunction.prototype);
 	cISO_CEILING.prototype.constructor = cISO_CEILING;
+	cISO_CEILING.prototype.argumentsMin = 1;
+	cISO_CEILING.prototype.argumentsMax = 2;
+	//cISO_CEILING.prototype.isXLFN = true;
+	cISO_CEILING.prototype.Calculate = function (arg) {
+		var argClone = [];
+		argClone[0] = this._checkCAreaArg(arg[0], arguments[1]);
+		argClone[1] = this._checkCAreaArg(arg[1], arguments[1]);
+
+		argClone[0] = argClone[0].tocNumber();
+		argClone[1] = argClone[1] ? argClone[1].tocNumber() : new cNumber(1);
+
+		var argError;
+		if(false !== (argError = this._checkErrorArg(argClone))){
+			return this.value = argError;
+		}
+
+		function floorHelper(argArray) {
+			var number = argArray[0];
+			var significance = argArray[1];
+			if (significance === 0 || number === 0) {
+				return new cNumber(0.0);
+			}
+
+			var absSignificance = Math.abs(significance);
+			var quotient = number / absSignificance;
+			return new cNumber(Math.ceil(quotient) * absSignificance);
+		}
+
+		return this.value = this._findArrayInNumberArguments(argClone, floorHelper);
+	};
+	cISO_CEILING.prototype.getInfo = function () {
+		return {
+			name: this.name, args: "( x, significance )"
+		};
+	};
 
 	/**
 	 * @constructor