33 lines
913 B
Rust
33 lines
913 B
Rust
use super::super::file_linked::FileLinked;
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use super::super::tree::Tree;
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#[test]
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fn test_mutate() -> Result<(), String> {
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let tree = btree!(1, btree!(2), btree!(3, btree!(4),));
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let mut linked_tree = FileLinked::new(tree, "blah.txt")?;
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assert_eq!(
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format!("{}", linked_tree.readonly()),
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"val = 1\n\n[left]\nval = 2\n\n[right]\nval = 3\n\n[right.left]\nval = 4\n"
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);
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linked_tree.mutate(|v1| v1.val = 10)?;
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assert_eq!(
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format!("{}", linked_tree.readonly()),
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"val = 10\n\n[left]\nval = 2\n\n[right]\nval = 3\n\n[right.left]\nval = 4\n"
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);
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linked_tree.mutate(|v1| {
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let mut left = v1.left.clone().unwrap();
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left.val = 13;
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v1.left = Some(left);
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})?;
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assert_eq!(
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format!("{}", linked_tree.readonly()),
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"val = 10\n\n[left]\nval = 13\n\n[right]\nval = 3\n\n[right.left]\nval = 4\n"
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);
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Ok(())
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}
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