error occurs when there is the null field #6
Description
Hi
I'm using this tool for some csv files.
then, I discover that error occurs when there is the null field.
For example, if specifying these csv files, occurs NoMethodError.
a.csv
ID,description,
1,hoge,
2,huga,
3,poyo,
b.csv
ID,description
1,hoge
2,huge
3,piyo
diff = CSVDiff.new("a.csv", "b.csv")
NoMethodError: undefined method `upcase' for nil:NilClassI think, to need rename fild nil to "NULL" in CSVSource.
But, I dont think it's the best solution.