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Avoid printing the entire diff if there are lots of lines

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This commit is contained in:
Markus Westerlind 2018-10-20 23:39:47 +02:00
parent 66158dada1
commit a068fa3537
1 changed files with 5 additions and 5 deletions
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10
lalrpop-test/src/util/mod.rs
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@ -90,17 +90,17 @@ pub fn compare<D: Debug, E: Debug>(actual: D, expected: E) {
pub fn compare_str(actual: &str, expected: &str, msg: &str) {
if actual != expected {
let mut lines = 0;
for diff in diff::lines(actual, expected).into_iter().take(100) {
lines += 1;
let lines = diff::lines(actual, expected);
for diff in lines.iter().take(100) {
match diff {
diff::Result::Right(r) => println!("- {}", r),
diff::Result::Left(l) => println!("+ {}", l),
diff::Result::Both(l, _) => println!(" {}", l),
diff::Result::Both(l, _) if lines.len() < 100 => println!(" {}", l),
_ => (),
}
}
if lines >= 100 {
if lines.len() >= 100 {
println!("... more");
}
assert!(false, "{}", msg);