public void Test_06_TestCreateRegularExpression( )
{
FileFilters filter = new FileFilters( );
string filters = ( "Documents (*.docx; *.doc)|*.docx; *.doc||" );
filter.PopulateCollections( filters );
filter.CreateRegularExpressions( );
Regex regex = filter[ 0 ];
Assert.AreEqual( @"(.+\.docx$)|(.+\.doc$)", regex.ToString( ) );
}