gs1 0.1.8

Library for dealing with GS1 identifiers
Documentation 
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use gs1::epc::{decode_binary, EPCValue};
use gs1::GS1;
use hex;

#[test]
fn test_decode() {
    let data = [
        0x35, 0x00, 0x00, 0x07, 0xB0, 0x00, 0x1C, 0x80, 0x00, 0x00, 0x03, 0x15,
    ];
    let result = decode_binary(&data).unwrap();
    assert_eq!(result.to_uri(), "urn:epc:id:gid:123.456.789");
    assert_eq!(result.to_tag_uri(), "urn:epc:tag:gid-96:123.456.789");

    let val = match result.get_value() {
        EPCValue::GID96(a) => a,
        _ => {
            panic!("Invalid type")
        }
    };

    assert_eq!(val.manager, 123);
    assert_eq!(val.class, 456);
    assert_eq!(val.serial, 789);

    let data = [48, 57, 96, 98, 195, 161, 168, 0, 0, 107, 51, 244];
    let result = decode_binary(&data).unwrap();
    assert_eq!(result.to_uri(), "urn:epc:id:sgtin:360843.0951968.7025652");

    let val = match result.get_value() {
        EPCValue::SGTIN96(a) => a,
        _ => {
            panic!("Invalid type")
        }
    };

    assert_eq!(val.gtin.company, 360843);
    assert_eq!(val.gtin.item, 951968);
    assert_eq!(val.to_gs1(), "(01) 03608439519680 (21) 7025652");

    let data = [0, 176, 122, 20, 12, 95, 156, 81, 64, 0, 3, 238];
    let result = decode_binary(&data).unwrap();
    let _val = match result.get_value() {
        EPCValue::Unprogrammed(a) => a,
        _ => {
            panic!("Invalid type")
        }
    };

    let data = [226, 0, 0, 25, 6, 12, 2, 9, 6, 144, 211, 194];
    match decode_binary(&data) {
        Err(_msg) => assert!(true),
        _ => assert!(false),
    };
}

#[test]
fn test_bad_header() {
    // Header byte 0xE2 is permanently reserved and should result in a parse failure
    let data = [0xE2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0];
    match decode_binary(&data) {
        Err(_e) => assert!(true),
        _ => assert!(false),
    };
}

// Examples from GS1 EPC E.3
#[test]
fn test_examples() {
    // SGTIN-96
    let data = decode_binary(&hex::decode("3074257BF7194E4000001A85").unwrap()).unwrap();
    assert_eq!(data.to_uri(), "urn:epc:id:sgtin:0614141.812345.6789");
    assert_eq!(
        data.to_tag_uri(),
        "urn:epc:tag:sgtin-96:3.0614141.812345.6789"
    );

    let data = match data.get_value() {
        EPCValue::SGTIN96(val) => val,
        _ => {
            panic!("Invalid type")
        }
    };
    assert_eq!(data.to_gs1(), "(01) 80614141123458 (21) 6789");

    // SGTIN-198
    let data = decode_binary(
        &hex::decode("3674257BF6B7A659B2C2BF100000000000000000000000000000").unwrap(),
    )
    .unwrap();
    assert_eq!(data.to_uri(), "urn:epc:id:sgtin:0614141.712345.32a%2Fb");
    assert_eq!(
        data.to_tag_uri(),
        "urn:epc:tag:sgtin-198:3.0614141.712345.32a%2Fb"
    );

    let data = match data.get_value() {
        EPCValue::SGTIN198(val) => val,
        _ => {
            panic!("Invalid type")
        }
    };
    assert_eq!(data.to_gs1(), "(01) 70614141123451 (21) 32a/b");

    // SSCC-96
    let data = decode_binary(&hex::decode("3174257BF4499602D2000000").unwrap()).unwrap();
    assert_eq!(data.to_uri(), "urn:epc:id:sscc:0614141.1234567890");
    assert_eq!(
        data.to_tag_uri(),
        "urn:epc:tag:sscc-96:3.0614141.1234567890"
    );

    let data = match data.get_value() {
        EPCValue::SSCC96(val) => val,
        _ => {
            panic!("Invalid type")
        }
    };
    assert_eq!(data.to_gs1(), "(00) 106141412345678908");

    // GID-96
    let data = decode_binary(&hex::decode("3500E86F8000A9E000000586").unwrap()).unwrap();
    assert_eq!(data.to_uri(), "urn:epc:id:gid:952056.2718.1414");
    assert_eq!(data.to_tag_uri(), "urn:epc:tag:gid-96:952056.2718.1414");

    // GRAI-96
    let data = decode_binary(&hex::decode("3376451FD40C0E400000162E").unwrap()).unwrap();
    assert_eq!(data.to_uri(), "urn:epc:id:grai:9521141.12345.5678");
    assert_eq!(
        data.to_tag_uri(),
        "urn:epc:tag:grai-96:3.9521141.12345.5678"
    );
}