Add test for range queries with integer record IDs

lib/src/sql/range.rs

@@ -34,11 +34,21 @@ pub fn range(i: &str) -> IResult<&str, Range> {
 		},
 	))
 }
+
 #[cfg(test)]
 mod tests {
 
 	use super::*;
 
+	#[test]
+	fn range_int() {
+		let sql = "person:1..100";
+		let res = range(sql);
+		assert!(res.is_ok());
+		let out = res.unwrap().1;
+		assert_eq!(r#"person:1..100"#, format!("{}", out));
+	}
+
 	#[test]
 	fn range_array() {
 		let sql = "person:['USA', 10]..['USA', 100]";