mirror of
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22 lines
538 B
Rust
22 lines
538 B
Rust
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pub fn non_empty_owned(value: Option<&String>) -> Option<String> {
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value
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.map(String::as_str)
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.map(str::trim)
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.filter(|value| !value.is_empty())
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.map(str::to_string)
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}
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#[cfg(test)]
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mod tests {
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use super::non_empty_owned;
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#[test]
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fn discards_blank_strings() {
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let empty = String::from(" ");
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let value = String::from(" hello ");
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assert_eq!(non_empty_owned(Some(&empty)), None);
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assert_eq!(non_empty_owned(Some(&value)).as_deref(), Some("hello"));
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}
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}
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