Add tests

Cargo.toml

@@ -16,3 +16,4 @@ log = "0.4.20"
 log4rs = "1.2.0"
 one_log = { version = "*", path = "crates/one_log" }
 regex = "1.10.2"
+rstest = "0.18.2"

crates/snake_case/Cargo.toml

@@ -14,3 +14,6 @@ log.workspace = true
 log4rs.workspace = true
 one_log.workspace = true
 regex.workspace = true
+
+[dev-dependencies]
+rstest.workspace = true

crates/snake_case/src/lib.rs

@@ -21,3 +21,25 @@ fn convert_to_snake_case(org_str: &str) -> String {
     let re = Regex::new("[^0-9a-zA-Z_ ]").unwrap();
     re.replace_all(org_str, "").to_case(Case::Snake)
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use rstest::rstest;
+
+    #[rstest]
+    #[case("Simple Case", "simple_case")]
+    #[case("With !@#$%^&*()_+/\\ Special *Chars", "with_special_chars")]
+    #[case(
+        "Task 2: Unanimously Legendary IDentifier (ULID) ",
+        "task_2_unanimously_legendary_i_dentifier_ulid"
+    )]
+    #[case(
+        "Task 2: Unanimously Legendary IDentifier [ULID] ",
+        "task_2_unanimously_legendary_i_dentifier_ulid"
+    )]
+    fn conversion(#[case] input: &str, #[case] expected: &str) {
+        let actual = convert_to_snake_case(input);
+        assert_eq!(actual, expected);
+    }
+}