Commits
Wolfgang Pupp authored 2b21b64e8a2
add test for zero rowcount
Specifically test that rowcount is zero when an empty
CSV file is loaded and the "have column header" property
is set.
Reasoning: rowcount == 0 in case of empty data is an
important invariant that should hold even if we specify
slightly mismatched inputs ("have column header" set, with
nothing actually in the file).