3eb0418bda
Also: - Simplify open listener implementation - Add set_global API to global traits Release Notes: - N/A
835 lines
23 KiB
Rust
835 lines
23 KiB
Rust
pub mod arc_cow;
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pub mod fs;
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pub mod paths;
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pub mod serde;
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#[cfg(any(test, feature = "test-support"))]
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pub mod test;
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use futures::Future;
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use lazy_static::lazy_static;
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use rand::{seq::SliceRandom, Rng};
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use std::{
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borrow::Cow,
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cmp::{self, Ordering},
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env,
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ops::{AddAssign, Range, RangeInclusive},
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panic::Location,
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pin::Pin,
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task::{Context, Poll},
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time::Instant,
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};
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use unicase::UniCase;
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pub use take_until::*;
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#[macro_export]
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macro_rules! debug_panic {
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( $($fmt_arg:tt)* ) => {
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if cfg!(debug_assertions) {
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panic!( $($fmt_arg)* );
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} else {
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let backtrace = std::backtrace::Backtrace::capture();
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log::error!("{}\n{:?}", format_args!($($fmt_arg)*), backtrace);
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}
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};
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}
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#[macro_export]
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macro_rules! with_clone {
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($i:ident, move ||$l:expr) => {{
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let $i = $i.clone();
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move || {
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$l
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}
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}};
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($i:ident, move |$($k:pat_param),*|$l:expr) => {{
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let $i = $i.clone();
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move |$( $k ),*| {
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$l
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}
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}};
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(($($i:ident),+), move ||$l:expr) => {{
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let ($($i),+) = ($($i.clone()),+);
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move || {
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$l
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}
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}};
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(($($i:ident),+), move |$($k:pat_param),*|$l:expr) => {{
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let ($($i),+) = ($($i.clone()),+);
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move |$( $k ),*| {
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$l
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}
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}};
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}
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mod test_with_clone {
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// If this test compiles, it works
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#[test]
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fn test() {
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let x = "String".to_string();
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let y = std::sync::Arc::new(5);
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fn no_arg(f: impl FnOnce()) {
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f()
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}
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no_arg(with_clone!(x, move || {
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drop(x);
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}));
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no_arg(with_clone!((x, y), move || {
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drop(x);
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drop(y);
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}));
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fn one_arg(f: impl FnOnce(usize)) {
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f(1)
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}
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one_arg(with_clone!(x, move |_| {
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drop(x);
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}));
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one_arg(with_clone!((x, y), move |b| {
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drop(x);
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drop(y);
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println!("{}", b);
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}));
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fn two_arg(f: impl FnOnce(usize, bool)) {
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f(5, true)
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}
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two_arg(with_clone!((x, y), move |a, b| {
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drop(x);
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drop(y);
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println!("{}{}", a, b)
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}));
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two_arg(with_clone!((x, y), move |a, _| {
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drop(x);
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drop(y);
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println!("{}", a)
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}));
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two_arg(with_clone!((x, y), move |_, b| {
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drop(x);
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drop(y);
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println!("{}", b)
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}));
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struct Example {
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z: usize,
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}
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fn destructuring_example(f: impl FnOnce(Example)) {
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f(Example { z: 10 })
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}
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destructuring_example(with_clone!(x, move |Example { z }| {
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drop(x);
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println!("{}", z);
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}));
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let a_long_variable_1 = "".to_string();
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let a_long_variable_2 = "".to_string();
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let a_long_variable_3 = "".to_string();
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let a_long_variable_4 = "".to_string();
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two_arg(with_clone!(
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(
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x,
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y,
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a_long_variable_1,
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a_long_variable_2,
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a_long_variable_3,
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a_long_variable_4
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),
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move |a, b| {
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drop(x);
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drop(y);
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drop(a_long_variable_1);
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drop(a_long_variable_2);
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drop(a_long_variable_3);
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drop(a_long_variable_4);
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println!("{}{}", a, b)
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}
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));
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fn single_expression_body(f: impl FnOnce(usize) -> usize) -> usize {
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f(20)
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}
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let _result = single_expression_body(with_clone!(y, move |z| *y + z));
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// Explicitly move all variables
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drop(x);
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drop(y);
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drop(a_long_variable_1);
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drop(a_long_variable_2);
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drop(a_long_variable_3);
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drop(a_long_variable_4);
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}
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}
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pub fn truncate(s: &str, max_chars: usize) -> &str {
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match s.char_indices().nth(max_chars) {
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None => s,
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Some((idx, _)) => &s[..idx],
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}
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}
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/// Removes characters from the end of the string if its length is greater than `max_chars` and
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/// appends "..." to the string. Returns string unchanged if its length is smaller than max_chars.
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pub fn truncate_and_trailoff(s: &str, max_chars: usize) -> String {
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debug_assert!(max_chars >= 5);
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let truncation_ix = s.char_indices().map(|(i, _)| i).nth(max_chars);
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match truncation_ix {
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Some(length) => s[..length].to_string() + "…",
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None => s.to_string(),
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}
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}
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/// Removes characters from the front of the string if its length is greater than `max_chars` and
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/// prepends the string with "...". Returns string unchanged if its length is smaller than max_chars.
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pub fn truncate_and_remove_front(s: &str, max_chars: usize) -> String {
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debug_assert!(max_chars >= 5);
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let truncation_ix = s.char_indices().map(|(i, _)| i).nth_back(max_chars);
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match truncation_ix {
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Some(length) => "…".to_string() + &s[length..],
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None => s.to_string(),
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}
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}
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/// Takes only `max_lines` from the string and, if there were more than `max_lines-1`, appends a
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/// a newline and "..." to the string, so that `max_lines` are returned.
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/// Returns string unchanged if its length is smaller than max_lines.
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pub fn truncate_lines_and_trailoff(s: &str, max_lines: usize) -> String {
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let mut lines = s.lines().take(max_lines).collect::<Vec<_>>();
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if lines.len() > max_lines - 1 {
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lines.pop();
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lines.join("\n") + "\n…"
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} else {
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lines.join("\n")
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}
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}
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pub fn post_inc<T: From<u8> + AddAssign<T> + Copy>(value: &mut T) -> T {
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let prev = *value;
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*value += T::from(1);
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prev
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}
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/// Extend a sorted vector with a sorted sequence of items, maintaining the vector's sort order and
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/// enforcing a maximum length. This also de-duplicates items. Sort the items according to the given callback. Before calling this,
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/// both `vec` and `new_items` should already be sorted according to the `cmp` comparator.
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pub fn extend_sorted<T, I, F>(vec: &mut Vec<T>, new_items: I, limit: usize, mut cmp: F)
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where
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I: IntoIterator<Item = T>,
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F: FnMut(&T, &T) -> Ordering,
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{
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let mut start_index = 0;
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for new_item in new_items {
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if let Err(i) = vec[start_index..].binary_search_by(|m| cmp(m, &new_item)) {
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let index = start_index + i;
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if vec.len() < limit {
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vec.insert(index, new_item);
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} else if index < vec.len() {
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vec.pop();
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vec.insert(index, new_item);
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}
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start_index = index;
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}
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}
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}
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/// Parse the result of calling `usr/bin/env` with no arguments
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pub fn parse_env_output(env: &str, mut f: impl FnMut(String, String)) {
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let mut current_key: Option<String> = None;
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let mut current_value: Option<String> = None;
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for line in env.split_terminator('\n') {
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if let Some(separator_index) = line.find('=') {
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if &line[..separator_index] != "" {
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if let Some((key, value)) = Option::zip(current_key.take(), current_value.take()) {
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f(key, value)
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}
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current_key = Some(line[..separator_index].to_string());
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current_value = Some(line[separator_index + 1..].to_string());
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continue;
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};
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}
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if let Some(value) = current_value.as_mut() {
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value.push('\n');
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value.push_str(line);
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}
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}
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if let Some((key, value)) = Option::zip(current_key.take(), current_value.take()) {
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f(key, value)
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}
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}
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pub fn merge_json_value_into(source: serde_json::Value, target: &mut serde_json::Value) {
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use serde_json::Value;
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match (source, target) {
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(Value::Object(source), Value::Object(target)) => {
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for (key, value) in source {
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if let Some(target) = target.get_mut(&key) {
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merge_json_value_into(value, target);
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} else {
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target.insert(key.clone(), value);
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}
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}
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}
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(source, target) => *target = source,
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}
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}
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pub fn merge_non_null_json_value_into(source: serde_json::Value, target: &mut serde_json::Value) {
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use serde_json::Value;
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if let Value::Object(source_object) = source {
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let target_object = if let Value::Object(target) = target {
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target
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} else {
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*target = Value::Object(Default::default());
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target.as_object_mut().unwrap()
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};
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for (key, value) in source_object {
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if let Some(target) = target_object.get_mut(&key) {
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merge_non_null_json_value_into(value, target);
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} else if !value.is_null() {
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target_object.insert(key.clone(), value);
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}
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}
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} else if !source.is_null() {
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*target = source
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}
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}
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pub fn measure<R>(label: &str, f: impl FnOnce() -> R) -> R {
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lazy_static! {
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pub static ref ZED_MEASUREMENTS: bool = env::var("ZED_MEASUREMENTS")
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.map(|measurements| measurements == "1" || measurements == "true")
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.unwrap_or(false);
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}
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if *ZED_MEASUREMENTS {
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let start = Instant::now();
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let result = f();
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let elapsed = start.elapsed();
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eprintln!("{}: {:?}", label, elapsed);
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result
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} else {
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f()
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}
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}
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pub trait ResultExt<E> {
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type Ok;
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fn log_err(self) -> Option<Self::Ok>;
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/// Assert that this result should never be an error in development or tests.
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fn debug_assert_ok(self, reason: &str) -> Self;
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fn warn_on_err(self) -> Option<Self::Ok>;
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fn inspect_error(self, func: impl FnOnce(&E)) -> Self;
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}
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impl<T, E> ResultExt<E> for Result<T, E>
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where
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E: std::fmt::Debug,
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{
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type Ok = T;
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#[track_caller]
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fn log_err(self) -> Option<T> {
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match self {
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Ok(value) => Some(value),
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Err(error) => {
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let caller = Location::caller();
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log::error!("{}:{}: {:?}", caller.file(), caller.line(), error);
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None
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}
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}
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}
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#[track_caller]
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fn debug_assert_ok(self, reason: &str) -> Self {
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if let Err(error) = &self {
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debug_panic!("{reason} - {error:?}");
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}
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self
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}
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fn warn_on_err(self) -> Option<T> {
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match self {
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Ok(value) => Some(value),
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Err(error) => {
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log::warn!("{:?}", error);
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None
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}
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}
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}
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/// https://doc.rust-lang.org/std/result/enum.Result.html#method.inspect_err
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fn inspect_error(self, func: impl FnOnce(&E)) -> Self {
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if let Err(err) = &self {
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func(err);
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}
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self
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}
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}
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pub trait TryFutureExt {
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fn log_err(self) -> LogErrorFuture<Self>
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where
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Self: Sized;
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fn log_tracked_err(self, location: core::panic::Location<'static>) -> LogErrorFuture<Self>
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where
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Self: Sized;
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fn warn_on_err(self) -> LogErrorFuture<Self>
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where
|
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Self: Sized;
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fn unwrap(self) -> UnwrapFuture<Self>
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||
where
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||
Self: Sized;
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}
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impl<F, T, E> TryFutureExt for F
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where
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F: Future<Output = Result<T, E>>,
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E: std::fmt::Debug,
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||
{
|
||
#[track_caller]
|
||
fn log_err(self) -> LogErrorFuture<Self>
|
||
where
|
||
Self: Sized,
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{
|
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let location = Location::caller();
|
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LogErrorFuture(self, log::Level::Error, *location)
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||
}
|
||
|
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fn log_tracked_err(self, location: core::panic::Location<'static>) -> LogErrorFuture<Self>
|
||
where
|
||
Self: Sized,
|
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{
|
||
LogErrorFuture(self, log::Level::Error, location)
|
||
}
|
||
|
||
#[track_caller]
|
||
fn warn_on_err(self) -> LogErrorFuture<Self>
|
||
where
|
||
Self: Sized,
|
||
{
|
||
let location = Location::caller();
|
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LogErrorFuture(self, log::Level::Warn, *location)
|
||
}
|
||
|
||
fn unwrap(self) -> UnwrapFuture<Self>
|
||
where
|
||
Self: Sized,
|
||
{
|
||
UnwrapFuture(self)
|
||
}
|
||
}
|
||
|
||
#[must_use]
|
||
pub struct LogErrorFuture<F>(F, log::Level, core::panic::Location<'static>);
|
||
|
||
impl<F, T, E> Future for LogErrorFuture<F>
|
||
where
|
||
F: Future<Output = Result<T, E>>,
|
||
E: std::fmt::Debug,
|
||
{
|
||
type Output = Option<T>;
|
||
|
||
fn poll(self: Pin<&mut Self>, cx: &mut Context) -> Poll<Self::Output> {
|
||
let level = self.1;
|
||
let location = self.2;
|
||
let inner = unsafe { Pin::new_unchecked(&mut self.get_unchecked_mut().0) };
|
||
match inner.poll(cx) {
|
||
Poll::Ready(output) => Poll::Ready(match output {
|
||
Ok(output) => Some(output),
|
||
Err(error) => {
|
||
log::log!(
|
||
level,
|
||
"{}:{}: {:?}",
|
||
location.file(),
|
||
location.line(),
|
||
error
|
||
);
|
||
None
|
||
}
|
||
}),
|
||
Poll::Pending => Poll::Pending,
|
||
}
|
||
}
|
||
}
|
||
|
||
pub struct UnwrapFuture<F>(F);
|
||
|
||
impl<F, T, E> Future for UnwrapFuture<F>
|
||
where
|
||
F: Future<Output = Result<T, E>>,
|
||
E: std::fmt::Debug,
|
||
{
|
||
type Output = T;
|
||
|
||
fn poll(self: Pin<&mut Self>, cx: &mut Context) -> Poll<Self::Output> {
|
||
let inner = unsafe { Pin::new_unchecked(&mut self.get_unchecked_mut().0) };
|
||
match inner.poll(cx) {
|
||
Poll::Ready(result) => Poll::Ready(result.unwrap()),
|
||
Poll::Pending => Poll::Pending,
|
||
}
|
||
}
|
||
}
|
||
|
||
pub struct Deferred<F: FnOnce()>(Option<F>);
|
||
|
||
impl<F: FnOnce()> Deferred<F> {
|
||
/// Drop without running the deferred function.
|
||
pub fn abort(mut self) {
|
||
self.0.take();
|
||
}
|
||
}
|
||
|
||
impl<F: FnOnce()> Drop for Deferred<F> {
|
||
fn drop(&mut self) {
|
||
if let Some(f) = self.0.take() {
|
||
f()
|
||
}
|
||
}
|
||
}
|
||
|
||
/// Run the given function when the returned value is dropped (unless it's cancelled).
|
||
#[must_use]
|
||
pub fn defer<F: FnOnce()>(f: F) -> Deferred<F> {
|
||
Deferred(Some(f))
|
||
}
|
||
|
||
pub struct RandomCharIter<T: Rng> {
|
||
rng: T,
|
||
simple_text: bool,
|
||
}
|
||
|
||
impl<T: Rng> RandomCharIter<T> {
|
||
pub fn new(rng: T) -> Self {
|
||
Self {
|
||
rng,
|
||
simple_text: std::env::var("SIMPLE_TEXT").map_or(false, |v| !v.is_empty()),
|
||
}
|
||
}
|
||
|
||
pub fn with_simple_text(mut self) -> Self {
|
||
self.simple_text = true;
|
||
self
|
||
}
|
||
}
|
||
|
||
impl<T: Rng> Iterator for RandomCharIter<T> {
|
||
type Item = char;
|
||
|
||
fn next(&mut self) -> Option<Self::Item> {
|
||
if self.simple_text {
|
||
return if self.rng.gen_range(0..100) < 5 {
|
||
Some('\n')
|
||
} else {
|
||
Some(self.rng.gen_range(b'a'..b'z' + 1).into())
|
||
};
|
||
}
|
||
|
||
match self.rng.gen_range(0..100) {
|
||
// whitespace
|
||
0..=19 => [' ', '\n', '\r', '\t'].choose(&mut self.rng).copied(),
|
||
// two-byte greek letters
|
||
20..=32 => char::from_u32(self.rng.gen_range(('α' as u32)..('ω' as u32 + 1))),
|
||
// // three-byte characters
|
||
33..=45 => ['✋', '✅', '❌', '❎', '⭐']
|
||
.choose(&mut self.rng)
|
||
.copied(),
|
||
// // four-byte characters
|
||
46..=58 => ['🍐', '🏀', '🍗', '🎉'].choose(&mut self.rng).copied(),
|
||
// ascii letters
|
||
_ => Some(self.rng.gen_range(b'a'..b'z' + 1).into()),
|
||
}
|
||
}
|
||
}
|
||
|
||
/// Get an embedded file as a string.
|
||
pub fn asset_str<A: rust_embed::RustEmbed>(path: &str) -> Cow<'static, str> {
|
||
match A::get(path).unwrap().data {
|
||
Cow::Borrowed(bytes) => Cow::Borrowed(std::str::from_utf8(bytes).unwrap()),
|
||
Cow::Owned(bytes) => Cow::Owned(String::from_utf8(bytes).unwrap()),
|
||
}
|
||
}
|
||
|
||
/// Expands to an immediately-invoked function expression. Good for using the ? operator
|
||
/// in functions which do not return an Option or Result.
|
||
///
|
||
/// Accepts a normal block, an async block, or an async move block.
|
||
#[macro_export]
|
||
macro_rules! maybe {
|
||
($block:block) => {
|
||
(|| $block)()
|
||
};
|
||
(async $block:block) => {
|
||
(|| async $block)()
|
||
};
|
||
(async move $block:block) => {
|
||
(|| async move $block)()
|
||
};
|
||
}
|
||
|
||
pub trait RangeExt<T> {
|
||
fn sorted(&self) -> Self;
|
||
fn to_inclusive(&self) -> RangeInclusive<T>;
|
||
fn overlaps(&self, other: &Range<T>) -> bool;
|
||
fn contains_inclusive(&self, other: &Range<T>) -> bool;
|
||
}
|
||
|
||
impl<T: Ord + Clone> RangeExt<T> for Range<T> {
|
||
fn sorted(&self) -> Self {
|
||
cmp::min(&self.start, &self.end).clone()..cmp::max(&self.start, &self.end).clone()
|
||
}
|
||
|
||
fn to_inclusive(&self) -> RangeInclusive<T> {
|
||
self.start.clone()..=self.end.clone()
|
||
}
|
||
|
||
fn overlaps(&self, other: &Range<T>) -> bool {
|
||
self.start < other.end && other.start < self.end
|
||
}
|
||
|
||
fn contains_inclusive(&self, other: &Range<T>) -> bool {
|
||
self.start <= other.start && other.end <= self.end
|
||
}
|
||
}
|
||
|
||
impl<T: Ord + Clone> RangeExt<T> for RangeInclusive<T> {
|
||
fn sorted(&self) -> Self {
|
||
cmp::min(self.start(), self.end()).clone()..=cmp::max(self.start(), self.end()).clone()
|
||
}
|
||
|
||
fn to_inclusive(&self) -> RangeInclusive<T> {
|
||
self.clone()
|
||
}
|
||
|
||
fn overlaps(&self, other: &Range<T>) -> bool {
|
||
self.start() < &other.end && &other.start <= self.end()
|
||
}
|
||
|
||
fn contains_inclusive(&self, other: &Range<T>) -> bool {
|
||
self.start() <= &other.start && &other.end <= self.end()
|
||
}
|
||
}
|
||
|
||
/// A way to sort strings with starting numbers numerically first, falling back to alphanumeric one,
|
||
/// case-insensitive.
|
||
///
|
||
/// This is useful for turning regular alphanumerically sorted sequences as `1-abc, 10, 11-def, .., 2, 21-abc`
|
||
/// into `1-abc, 2, 10, 11-def, .., 21-abc`
|
||
#[derive(Debug, PartialEq, Eq)]
|
||
pub struct NumericPrefixWithSuffix<'a>(i32, &'a str);
|
||
|
||
impl<'a> NumericPrefixWithSuffix<'a> {
|
||
pub fn from_numeric_prefixed_str(str: &'a str) -> Option<Self> {
|
||
let i = str.chars().take_while(|c| c.is_ascii_digit()).count();
|
||
let (prefix, remainder) = str.split_at(i);
|
||
|
||
match prefix.parse::<i32>() {
|
||
Ok(prefix) => Some(NumericPrefixWithSuffix(prefix, remainder)),
|
||
Err(_) => None,
|
||
}
|
||
}
|
||
}
|
||
|
||
impl Ord for NumericPrefixWithSuffix<'_> {
|
||
fn cmp(&self, other: &Self) -> Ordering {
|
||
let NumericPrefixWithSuffix(num_a, remainder_a) = self;
|
||
let NumericPrefixWithSuffix(num_b, remainder_b) = other;
|
||
num_a
|
||
.cmp(num_b)
|
||
.then_with(|| UniCase::new(remainder_a).cmp(&UniCase::new(remainder_b)))
|
||
}
|
||
}
|
||
|
||
impl<'a> PartialOrd for NumericPrefixWithSuffix<'a> {
|
||
fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
|
||
Some(self.cmp(other))
|
||
}
|
||
}
|
||
lazy_static! {
|
||
static ref EMOJI_REGEX: regex::Regex = regex::Regex::new("(\\p{Emoji}|\u{200D})").unwrap();
|
||
}
|
||
|
||
/// Returns true if the given string consists of emojis only.
|
||
/// E.g. "👨👩👧👧👋" will return true, but "👋!" will return false.
|
||
pub fn word_consists_of_emojis(s: &str) -> bool {
|
||
let mut prev_end = 0;
|
||
for capture in EMOJI_REGEX.find_iter(s) {
|
||
if capture.start() != prev_end {
|
||
return false;
|
||
}
|
||
prev_end = capture.end();
|
||
}
|
||
prev_end == s.len()
|
||
}
|
||
|
||
#[cfg(test)]
|
||
mod tests {
|
||
use super::*;
|
||
|
||
#[test]
|
||
fn test_extend_sorted() {
|
||
let mut vec = vec![];
|
||
|
||
extend_sorted(&mut vec, vec![21, 17, 13, 8, 1, 0], 5, |a, b| b.cmp(a));
|
||
assert_eq!(vec, &[21, 17, 13, 8, 1]);
|
||
|
||
extend_sorted(&mut vec, vec![101, 19, 17, 8, 2], 8, |a, b| b.cmp(a));
|
||
assert_eq!(vec, &[101, 21, 19, 17, 13, 8, 2, 1]);
|
||
|
||
extend_sorted(&mut vec, vec![1000, 19, 17, 9, 5], 8, |a, b| b.cmp(a));
|
||
assert_eq!(vec, &[1000, 101, 21, 19, 17, 13, 9, 8]);
|
||
}
|
||
|
||
#[test]
|
||
fn test_iife() {
|
||
fn option_returning_function() -> Option<()> {
|
||
None
|
||
}
|
||
|
||
let foo = maybe!({
|
||
option_returning_function()?;
|
||
Some(())
|
||
});
|
||
|
||
assert_eq!(foo, None);
|
||
}
|
||
|
||
#[test]
|
||
fn test_trancate_and_trailoff() {
|
||
assert_eq!(truncate_and_trailoff("", 5), "");
|
||
assert_eq!(truncate_and_trailoff("èèèèèè", 7), "èèèèèè");
|
||
assert_eq!(truncate_and_trailoff("èèèèèè", 6), "èèèèèè");
|
||
assert_eq!(truncate_and_trailoff("èèèèèè", 5), "èèèèè…");
|
||
}
|
||
|
||
#[test]
|
||
fn test_numeric_prefix_str_method() {
|
||
let target = "1a";
|
||
assert_eq!(
|
||
NumericPrefixWithSuffix::from_numeric_prefixed_str(target),
|
||
Some(NumericPrefixWithSuffix(1, "a"))
|
||
);
|
||
|
||
let target = "12ab";
|
||
assert_eq!(
|
||
NumericPrefixWithSuffix::from_numeric_prefixed_str(target),
|
||
Some(NumericPrefixWithSuffix(12, "ab"))
|
||
);
|
||
|
||
let target = "12_ab";
|
||
assert_eq!(
|
||
NumericPrefixWithSuffix::from_numeric_prefixed_str(target),
|
||
Some(NumericPrefixWithSuffix(12, "_ab"))
|
||
);
|
||
|
||
let target = "1_2ab";
|
||
assert_eq!(
|
||
NumericPrefixWithSuffix::from_numeric_prefixed_str(target),
|
||
Some(NumericPrefixWithSuffix(1, "_2ab"))
|
||
);
|
||
|
||
let target = "1.2";
|
||
assert_eq!(
|
||
NumericPrefixWithSuffix::from_numeric_prefixed_str(target),
|
||
Some(NumericPrefixWithSuffix(1, ".2"))
|
||
);
|
||
|
||
let target = "1.2_a";
|
||
assert_eq!(
|
||
NumericPrefixWithSuffix::from_numeric_prefixed_str(target),
|
||
Some(NumericPrefixWithSuffix(1, ".2_a"))
|
||
);
|
||
|
||
let target = "12.2_a";
|
||
assert_eq!(
|
||
NumericPrefixWithSuffix::from_numeric_prefixed_str(target),
|
||
Some(NumericPrefixWithSuffix(12, ".2_a"))
|
||
);
|
||
|
||
let target = "12a.2_a";
|
||
assert_eq!(
|
||
NumericPrefixWithSuffix::from_numeric_prefixed_str(target),
|
||
Some(NumericPrefixWithSuffix(12, "a.2_a"))
|
||
);
|
||
}
|
||
|
||
#[test]
|
||
fn test_numeric_prefix_with_suffix() {
|
||
let mut sorted = vec!["1-abc", "10", "11def", "2", "21-abc"];
|
||
sorted.sort_by_key(|s| {
|
||
NumericPrefixWithSuffix::from_numeric_prefixed_str(s).unwrap_or_else(|| {
|
||
panic!("Cannot convert string `{s}` into NumericPrefixWithSuffix")
|
||
})
|
||
});
|
||
assert_eq!(sorted, ["1-abc", "2", "10", "11def", "21-abc"]);
|
||
|
||
for numeric_prefix_less in ["numeric_prefix_less", "aaa", "~™£"] {
|
||
assert_eq!(
|
||
NumericPrefixWithSuffix::from_numeric_prefixed_str(numeric_prefix_less),
|
||
None,
|
||
"String without numeric prefix `{numeric_prefix_less}` should not be converted into NumericPrefixWithSuffix"
|
||
)
|
||
}
|
||
}
|
||
|
||
#[test]
|
||
fn test_word_consists_of_emojis() {
|
||
let words_to_test = vec![
|
||
("👨👩👧👧👋🥒", true),
|
||
("👋", true),
|
||
("!👋", false),
|
||
("👋!", false),
|
||
("👋 ", false),
|
||
(" 👋", false),
|
||
("Test", false),
|
||
];
|
||
|
||
for (text, expected_result) in words_to_test {
|
||
assert_eq!(word_consists_of_emojis(text), expected_result);
|
||
}
|
||
}
|
||
|
||
#[test]
|
||
fn test_truncate_lines_and_trailoff() {
|
||
let text = r#"Line 1
|
||
Line 2
|
||
Line 3"#;
|
||
|
||
assert_eq!(
|
||
truncate_lines_and_trailoff(text, 2),
|
||
r#"Line 1
|
||
…"#
|
||
);
|
||
|
||
assert_eq!(
|
||
truncate_lines_and_trailoff(text, 3),
|
||
r#"Line 1
|
||
Line 2
|
||
…"#
|
||
);
|
||
|
||
assert_eq!(
|
||
truncate_lines_and_trailoff(text, 4),
|
||
r#"Line 1
|
||
Line 2
|
||
Line 3"#
|
||
);
|
||
}
|
||
}
|