Added missing endsWith macro for String (#51)

Author: alexsnaps

interpreter/src/context.rs

@@ -154,6 +154,7 @@ impl<'a> Default for Context<'a> {
         ctx.add_function("all", functions::all);
         ctx.add_function("max", functions::max);
         ctx.add_function("startsWith", functions::starts_with);
+        ctx.add_function("endsWith", functions::ends_with);
         ctx.add_function("matches", functions::matches);
         ctx.add_function("duration", functions::duration);
         ctx.add_function("timestamp", functions::timestamp);

interpreter/src/functions.rs

@@ -224,6 +224,16 @@ pub fn starts_with(This(this): This<Arc<String>>, prefix: Arc<String>) -> bool {
     this.starts_with(prefix.as_str())
 }
 
+/// Returns true if a string ends with another string.
+///
+/// # Example
+/// ```cel
+/// "abc".endsWith("c") == true
+/// ```
+pub fn ends_with(This(this): This<Arc<String>>, suffix: Arc<String>) -> bool {
+    this.ends_with(suffix.as_str())
+}
+
 /// Returns true if a string matches the regular expression.
 ///
 /// # Example
@@ -671,6 +681,16 @@ mod tests {
         .for_each(assert_script);
     }
 
+    #[test]
+    fn test_ends_with() {
+        [
+            ("ends with true", "'foobar'.endsWith('bar') == true"),
+            ("ends with false", "'foobar'.endsWith('foo') == false"),
+        ]
+        .iter()
+        .for_each(assert_script);
+    }
+
     #[test]
     fn test_timestamp() {
         [(