trevors_utilities/tests/poc/data_to_text.rs

use trevors_utilities::data_to_text::DataToText;

fn read_bin(source: &str) -> Vec<u8> {
    let full_path = format!(
        "{}/resources/data_to_text/{}.bin",
        std::env::current_dir()
            .unwrap()
            .to_str()
            .unwrap()
            .to_string(),
        source
    );
    // println!("FULL PATH BIN: [{}]", full_path);
    std::fs::read(full_path).unwrap()
}

fn read_display(source: &str) -> String {
    let full_path = format!(
        "{}/resources/data_to_text/{}.display",
        std::env::current_dir()
            .unwrap()
            .to_str()
            .unwrap()
            .to_string(),
        source
    );
    std::fs::read_to_string(full_path).unwrap()
}

#[test]
fn data_to_text() {
    let data_to_display: &[u8] = &[
        0x66, 0x67, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, 0x70, 0x71, 0x72, 0x73, 0x74,
        0x20, 0x76, 0x77, 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, 0x20,
    ];
    let expected_data: &str = "0x66 0x67 0x68 0x69 0x6a 0x6b 0x6c 0x6d 0x6e 0x6f 0x70 0x71 0x72 0x73 0x74 0x20                  fghijklmnopqrst \n0x76 0x77 0x78 0x79 0x7a 0x7b 0x7c 0x7d 0x7e 0x7f 0x20                                           vwxyz{|}~  \n";

    let actual_data = DataToText::data_to_text(data_to_display);
    assert_eq!(actual_data, expected_data);
}

#[test]
fn quickbrownfoxtest() {
    let test_params = vec!["quickbrownfox", "q"];

    for stub in test_params {
        // load the content from quickbrownfox.bin
        let bin_data = read_bin(stub);

        // format it for display
        let formatted = DataToText::data_to_text(&bin_data);

        // load the content from quickbrownfox.display
        let expected = read_display(stub);

        assert_eq!(formatted, expected);
    }
}

#[test]
fn data_to_text_window_all() {
    let bin_data = read_bin("quickbrownfox");
    let formatted = DataToText::data_to_text_window(&bin_data, 0, bin_data.len());
    let expected = read_display("quickbrownfox");
    assert_eq!(formatted, expected);
}

#[test]
fn test_window_past_end_of_data() {
    let bin_data = [0x01, 0x02, 0x03, 0x04, 0x05, 0x06];
    let formatted = DataToText::data_to_text_window(&bin_data, 10, 10);
    assert_eq!(formatted, "");
}