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zip_validity.rs
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zip_validity.rs
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use arrow2::bitmap::{
utils::{BitmapIter, ZipValidity},
Bitmap,
};
#[test]
fn basic() {
let a = Bitmap::from([true, false]);
let a = Some(a.iter());
let values = vec![0, 1];
let zip = ZipValidity::new(values.into_iter(), a);
let a = zip.collect::<Vec<_>>();
assert_eq!(a, vec![Some(0), None]);
}
#[test]
fn complete() {
let a = Bitmap::from([true, false, true, false, true, false, true, false]);
let a = Some(a.iter());
let values = vec![0, 1, 2, 3, 4, 5, 6, 7];
let zip = ZipValidity::new(values.into_iter(), a);
let a = zip.collect::<Vec<_>>();
assert_eq!(
a,
vec![Some(0), None, Some(2), None, Some(4), None, Some(6), None]
);
}
#[test]
fn slices() {
let a = Bitmap::from([true, false]);
let a = Some(a.iter());
let offsets = vec![0, 2, 3];
let values = vec![1, 2, 3];
let iter = offsets.windows(2).map(|x| {
let start = x[0];
let end = x[1];
&values[start..end]
});
let zip = ZipValidity::new(iter, a);
let a = zip.collect::<Vec<_>>();
assert_eq!(a, vec![Some([1, 2].as_ref()), None]);
}
#[test]
fn byte() {
let a = Bitmap::from([true, false, true, false, false, true, true, false, true]);
let a = Some(a.iter());
let values = vec![0, 1, 2, 3, 4, 5, 6, 7, 8];
let zip = ZipValidity::new(values.into_iter(), a);
let a = zip.collect::<Vec<_>>();
assert_eq!(
a,
vec![
Some(0),
None,
Some(2),
None,
None,
Some(5),
Some(6),
None,
Some(8)
]
);
}
#[test]
fn offset() {
let a = Bitmap::from([true, false, true, false, false, true, true, false, true]).slice(1, 8);
let a = Some(a.iter());
let values = vec![0, 1, 2, 3, 4, 5, 6, 7];
let zip = ZipValidity::new(values.into_iter(), a);
let a = zip.collect::<Vec<_>>();
assert_eq!(
a,
vec![None, Some(1), None, None, Some(4), Some(5), None, Some(7)]
);
}
#[test]
fn none() {
let values = vec![0, 1, 2];
let zip = ZipValidity::new(values.into_iter(), None::<BitmapIter>);
let a = zip.collect::<Vec<_>>();
assert_eq!(a, vec![Some(0), Some(1), Some(2)]);
}
#[test]
fn rev() {
let a = Bitmap::from([true, false, true, false, false, true, true, false, true]).slice(1, 8);
let a = Some(a.iter());
let values = vec![0, 1, 2, 3, 4, 5, 6, 7];
let zip = ZipValidity::new(values.into_iter(), a);
let result = zip.rev().collect::<Vec<_>>();
let expected = vec![None, Some(1), None, None, Some(4), Some(5), None, Some(7)]
.into_iter()
.rev()
.collect::<Vec<_>>();
assert_eq!(result, expected);
}