18 lines
519 B
Rust
18 lines
519 B
Rust
#[cfg(test)]
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mod tests {
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#[test]
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fn resizing() {
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let mut v = Vec::with_capacity(2);
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v.push(1);
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v.push(2); // max capacity reached
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assert_eq!(v.capacity(), 2);
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v.push(3); // beyond capacity, needs to resize
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// Can you guess what the new capacity will be?
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// Beware that the standard library makes no guarantees about the
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// algorithm used to resize the vector, so this may change in the future.
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assert_eq!(v.capacity(), todo!());
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}
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}
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