DateTimeHelper BugFix and Test Update (#591)

- Fixed bug in string concatenation
- Added toString() on argument test required by Lucee when
  a numeric value is sent in
- Updated Test Spec with new test for validateTime and name

COLDBOX-1281 #resolve

Author: GiancarloGomez

system/async/time/DateTimeHelper.cfc

@@ -294,15 +294,15 @@ component singleton {
 	 */
 	string function validateTime( required string time ){
 		if ( !reFind( "^([0-1][0-9]|[2][0-3])\:[0-5][0-9]$", arguments.time ) ) {
-			if ( arguments.time.findOneOf( ":" ) > 0 ) {
+			if ( arguments.time.toString().findOneOf( ":" ) > 0 ) {
 				throw(
 					message = "Invalid time representation (#arguments.time#). Time is represented in 24 hour minute format => HH:mm",
 					type    = "InvalidTimeException"
 				);
 			}
 
 			// There were no minutes, so let's add them
-			return validateTime( arguments.time + ":00" );
+			return validateTime( arguments.time & ":00" );
 		}
 
 		return arguments.time;

tests/specs/async/time/ChronoUnitSpec.cfc renamed to tests/specs/async/time/DateTimeHelperSpec.cfc

@@ -7,7 +7,7 @@ component extends="tests.specs.async.BaseAsyncSpec" {
 
 	function run( testResults, testBox ){
 		// all your suites go here.
-		describe( "Chrono Units", function(){
+		describe( "Date Time Helper", function(){
 			beforeEach( function( currentSpec ){
 				dateTimeHelper = new coldbox.system.async.time.DateTimeHelper();
 			} );
@@ -41,6 +41,11 @@ component extends="tests.specs.async.BaseAsyncSpec" {
 				expect( t.getId() ).notToBeEmpty();
 			} );
 
+			it( "can validate a numeric time value", function(){
+				var timeValue = dateTimeHelper.validateTime( 11 );
+				expect( timeValue ).toBe( "11:00" );
+			} );
+
 			var units = [
 				"CENTURIES",
 				"DAYS",