83 lines
1.9 KiB
Rust
83 lines
1.9 KiB
Rust
use crate::FlatReqFilter;
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use itertools::Itertools;
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pub fn diff_filter(prev: &Vec<FlatReqFilter>, next: &Vec<FlatReqFilter>) -> Vec<FlatReqFilter> {
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let mut added: Vec<FlatReqFilter> = vec![];
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for n in next.iter() {
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if !prev.iter().contains(&n) {
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added.push(n.clone())
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}
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}
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added
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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#[test]
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fn simple_diff_same() {
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let prev = vec![FlatReqFilter {
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id: Some("a".to_owned()),
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..Default::default()
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}];
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let next = vec![FlatReqFilter {
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id: Some("a".to_owned()),
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..Default::default()
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}];
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let result = diff_filter(&prev, &next);
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assert_eq!(result, vec![])
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}
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#[test]
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fn simple_diff_add() {
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let prev = vec![FlatReqFilter {
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id: Some("a".to_owned()),
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..Default::default()
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}];
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let next = vec![
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FlatReqFilter {
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id: Some("a".to_owned()),
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..Default::default()
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},
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FlatReqFilter {
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id: Some("b".to_owned()),
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..Default::default()
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},
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];
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let result = diff_filter(&prev, &next);
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assert_eq!(
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result,
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vec![FlatReqFilter {
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id: Some("b".to_owned()),
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..Default::default()
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}]
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)
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}
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#[test]
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fn simple_diff_replace() {
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let prev = vec![FlatReqFilter {
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id: Some("a".to_owned()),
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..Default::default()
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}];
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let next = vec![FlatReqFilter {
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id: Some("b".to_owned()),
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..Default::default()
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}];
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let result = diff_filter(&prev, &next);
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assert_eq!(
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result,
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vec![FlatReqFilter {
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id: Some("b".to_owned()),
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..Default::default()
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}]
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)
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}
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}
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