implement CountLessEqual

Author: tomoikey

src/rule/collection/count.rs

@@ -2,8 +2,10 @@ mod equal;
 mod grater_equal;
 mod greater;
 mod less;
+mod less_equal;
 
 pub use equal::*;
 pub use grater_equal::*;
 pub use greater::*;
 pub use less::*;
+pub use less_equal::*;

src/rule/collection/count/less_equal.rs

@@ -0,0 +1,76 @@
+use crate::rule::{CountEqualRule, CountLessRule};
+use crate::{Or, Refined};
+
+/// A type that holds a value satisfying the `LessEqualRule`
+pub type CountLessEqual<const N: usize, RULE, ITERABLE> =
+    Refined<CountLessEqualRule<N, RULE, ITERABLE>>;
+
+/// A type that holds a `Vec` value satisfying the `CountLessEqualRule`
+pub type CountLessEqualVec<const N: usize, RULE> = Refined<CountLessEqualVecRule<N, RULE>>;
+
+/// A type that holds a `VecDeque` value satisfying the `CountLessEqualRule`
+pub type CountLessEqualVecDeque<const N: usize, RULE> =
+    Refined<CountLessEqualVecDequeRule<N, RULE>>;
+
+/// A type that holds a `HashMap` value satisfying the `CountLessEqualRule`
+pub type CountLessEqualHashMap<const N: usize, RULE, K> =
+    Refined<CountLessEqualHashMapRule<N, RULE, K>>;
+
+/// A type that holds a `HashSet` value satisfying the `CountLessEqualRule`
+pub type CountLessEqualHashSet<const N: usize, RULE, K> =
+    Refined<CountLessEqualHashSetRule<N, RULE, K>>;
+
+/// A type that holds a `String` value satisfying the `CountLessEqualRule`
+pub type CountLessEqualString<const N: usize, RULE> = Refined<CountLessEqualStringRule<N, RULE>>;
+
+/// A type that holds a `&'a str` value satisfying the `CountLessEqualRule`
+pub type CountLessEqualStr<'a, const N: usize, RULE> = Refined<CountLessEqualStrRule<'a, N, RULE>>;
+
+/// Rule where the count of items in the collection that satisfy the condition is less than or equal to `N`.
+pub type CountLessEqualRule<const N: usize, RULE, ITERABLE> =
+    Or![CountLessRule<N, RULE, ITERABLE>, CountEqualRule<N, RULE, ITERABLE>];
+
+/// Rule where the count of items in the `Vec` that satisfy the condition is less than or equal to `N`.
+pub type CountLessEqualVecRule<const N: usize, RULE> =
+    CountLessEqualRule<N, RULE, Vec<<RULE as crate::rule::Rule>::Item>>;
+
+/// Rule where the count of items in the `VecDeque` that satisfy the condition is less than or equal to `N`.
+pub type CountLessEqualVecDequeRule<const N: usize, RULE> =
+    CountLessEqualRule<N, RULE, std::collections::VecDeque<<RULE as crate::rule::Rule>::Item>>;
+
+/// Rule where the count of items in the `HashMap` that satisfy the condition is less than or equal to `N`.
+pub type CountLessEqualHashMapRule<const N: usize, RULE, K> =
+    CountLessEqualRule<N, RULE, std::collections::HashMap<K, <RULE as crate::rule::Rule>::Item>>;
+
+/// Rule where the count of items in the `HashSet` that satisfy the condition is less than or equal to `N`.
+pub type CountLessEqualHashSetRule<const N: usize, RULE, K> =
+    CountLessEqualRule<N, RULE, std::collections::HashSet<K>>;
+
+/// Rule where the count of items in the `String` that satisfy the condition is less than or equal to `N`.
+pub type CountLessEqualStringRule<const N: usize, RULE> = CountLessEqualRule<N, RULE, String>;
+
+/// Rule where the count of items in the `&'a str` that satisfy the condition is less than or equal to `N`.
+pub type CountLessEqualStrRule<'a, const N: usize, RULE> = CountLessEqualRule<N, RULE, &'a str>;
+
+#[cfg(test)]
+mod tests {
+    use crate::result::Error;
+    use crate::rule::{CountLessEqualVec, NonEmptyStringRule};
+
+    #[test]
+    fn count_less_equal_1() -> Result<(), Error<Vec<String>>> {
+        let value = vec!["good morning".to_string(), "hello".to_string()];
+        let count_less_equal = CountLessEqualVec::<2, NonEmptyStringRule>::new(value.clone())?;
+        assert_eq!(count_less_equal.into_value(), value);
+        Ok(())
+    }
+
+    #[test]
+    fn count_less_equal_2() -> anyhow::Result<()> {
+        let value = vec!["world".to_string(), "hello".to_string()];
+        let count_less_equal_result =
+            CountLessEqualVec::<1, NonEmptyStringRule>::new(value.clone());
+        assert!(count_less_equal_result.is_err());
+        Ok(())
+    }
+}