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/// Checks if all elements are sorted(ascending or descending order) within collection.
///
/// # Arguments
///
/// * `collection` - The collection to perform check.
///
/// # Returns
///
/// Returns true if all elements are sorted within collection.
///
/// # Examples
///
/// ```
/// use rufl::collection;
///
/// assert_eq!(true, collection::is_sorted(&[1, 2, 3]));
///
/// assert_eq!(true, collection::is_sorted(&[3, 2, 1]));
///
/// assert_eq!(false, collection::is_sorted(&[1, 3, 2]));
///
/// ```
pub fn is_sorted<C: AsRef<[T]>, T: Ord>(collection: &C) -> bool {
crate::collection::is_ascending_order(collection)
|| crate::collection::is_descending_order(collection)
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_is_sorted() {
assert_eq!(true, is_sorted(&[1]));
assert_eq!(true, is_sorted(&[1, 2, 3]));
assert_eq!(true, is_sorted(&[3, 2, 1]));
assert_eq!(true, is_sorted(&["c", "b", "a"]));
assert_eq!(false, is_sorted(&[3, 1, 2]));
assert_eq!(false, is_sorted(&[1, 3, 2]));
}
}