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test_transpose.rs
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test_transpose.rs
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use crate::{qcheck, workdir::Workdir, CsvData};
fn prop_transpose(name: &str, rows: CsvData, streaming: bool) -> bool {
let wrk = Workdir::new(name);
wrk.create("in.csv", rows.clone());
let mut cmd = wrk.command("transpose");
cmd.arg("in.csv");
if streaming {
cmd.arg("--multipass");
}
let got: Vec<Vec<String>> = wrk.read_stdout(&mut cmd);
let mut expected = vec![];
let nrows = rows.len();
let ncols = if !rows.is_empty() { rows[0].len() } else { 0 };
for i in 0..ncols {
let mut expected_row = vec![];
for j in 0..nrows {
expected_row.push(rows[j][i].clone());
}
expected.push(expected_row);
}
rassert_eq!(got, expected)
}
#[test]
fn prop_transpose_in_memory() {
fn p(rows: CsvData) -> bool {
prop_transpose("prop_transpose_in_memory", rows, false)
}
qcheck(p as fn(CsvData) -> bool);
}
#[test]
fn prop_transpose_multipass() {
fn p(rows: CsvData) -> bool {
prop_transpose("prop_transpose_multipass", rows, true)
}
qcheck(p as fn(CsvData) -> bool);
}