A simple CSV reader that implements Iterable. It handles comma and double quotes, but it does not handle line breaks.
Per https://stackoverflow.com/questions/25189342/spock-reading-test-data-from-csv-file , it allows us to write elegant Spock specification to read data from CSV file without loading all data into memory first.
@Unroll
def "#field1 + 1 should equal to #field2"() {
expect:
Integer.valueOf(field1 as String) + 1 == Integer.valueOf(field2 as String)
where:
[field1, field2] << new CSVReader(getClass().getClassLoader().getResourceAsStream("test-data.csv"))
}It also allows us to write a clean for-loop to read data from CSV file.
for (String[] fields : new CSVReader(getClass().getClassLoader().getResourceAsStream("test-data.csv"))) {
System.out.println(fields[0] + " " + fields[1]);
}