+ tests for convert formula

cell/.unit-tests/FormulaTests.js

@@ -6878,6 +6878,18 @@ $( function () {
 		ok( oParser.parse() );
 		strictEqual( oParser.calculate().getValue().toFixed(7) - 0, 0.0154324 );
 
+		oParser = new parserFormula( 'CONVERT(1, "lbm", "kg")', "A2", ws );
+		ok( oParser.parse() );
+		strictEqual( oParser.calculate().getValue().toFixed(7) - 0, 0.4535923 );
+
+		oParser = new parserFormula( 'CONVERT(1, "lbm", "mg")', "A2", ws );
+		ok( oParser.parse() );
+		strictEqual( oParser.calculate().getValue().toFixed(0) - 0, 453592 );
+
+		oParser = new parserFormula( 'CONVERT(1, "klbm", "mg")', "A2", ws );
+		ok( oParser.parse() );
+		strictEqual( oParser.calculate().getValue(), "#N/A" );
+
 	} );
 
     test( "Test: \"PRICE\"", function () {

cell/model/FormulaObjects/engineeringFunctions.js

@@ -4984,7 +4984,9 @@
 
 			var coeff;
 			var res;
-			if(null !== (coeff = getUnitConverterCoeff(from, to))){
+			if(from === to){
+				res = num;
+			} else if(null !== (coeff = getUnitConverterCoeff(from, to))){
 				if(coeff.length){
 					res = num;
 					for(var i = 0; i < coeff.length; i++){