/****************************************
*  NOTICE
*  ______________________________________
*
*  Copyright 2023 Tony Nguyen
*  
*  Project:
*      Name: to_snake_case
*      Links:
*         - https://gitlab.com/t101/to_snake_case
*
*      Modified: 20-Feb-2023
*  ______________________________________
* 
*  Licensed under the Apache License, Version 2.0 (the "License");
*  you may not use this file except in compliance with the License.
*  You may obtain a copy of the License at
* 
*      http://www.apache.org/licenses/LICENSE-2.0
* 
*  Unless required by applicable law or agreed to in writing, software
*  distributed under the License is distributed on an "AS IS" BASIS,
*  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
*  See the License for the specific language governing permissions and
*  limitations under the License.
*
******************************************/

use to_snake_case::ToSnakeCase;

#[test]
fn snake_case() {
    let expected = "to_snake_case";

    let input = String::from(expected);
    let output = input.to_snake_case();

    assert_eq!(expected, &output);
}

#[test]
fn snake_case_with_additional_underscores() {
    let expected = "to__snake_case";

    let input = String::from(expected);
    let output = input.to_snake_case();

    assert_eq!(expected, &output);
}

#[test]
fn snake_case_with_anomaly() {
    let expected = "to__snake_case";

    let input = String::from("to__snake_Case");
    let output = input.to_snake_case();

    assert_eq!(expected, &output);
}

#[test]
fn snake_case_with_anomaly2() {
    let expected = "t_o__snake_case";

    let input = String::from("tO__snake_Case");
    let output = input.to_snake_case();

    assert_eq!(expected, &output);
}

#[test]
fn snake_case_with_anomaly3() {
    let expected = "t_o__snake_c_ase";

    let input = String::from("tO__snake_CAse");
    let output = input.to_snake_case();

    assert_eq!(expected, &output);
}

#[test]
fn snake_case_with_anomaly4() {
    let expected = "t_o__snake_c_ase";

    let input = String::from("tO__SNAKE_CAse");
    let output = input.to_snake_case();

    assert_eq!(expected, &output);
}

#[test]
fn underscore() {
    assert!('_'.is_ascii_punctuation());
    assert!(!'_'.is_lowercase());
    assert!(!'_'.is_uppercase());
}