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22 lines
383 B
22 lines
383 B
pub fn add(left: u64, right: u64) -> u64 {
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left + right
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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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// ANCHOR: here
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#[test]
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fn it_works() -> Result<(), String> {
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let result = add(2, 2);
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if result == 4 {
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Ok(())
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} else {
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Err(String::from("two plus two does not equal four"))
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}
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}
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// ANCHOR_END: here
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}
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