rxing 0.4.11

A rust port of the zxing barcode library.
Documentation 
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/*
 * Copyright 2008 ZXing authors
 *
 * 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 std::collections::HashMap;

use crate::{
    common::BitSourceBuilder,
    qrcode::decoder::{decoded_bit_stream_parser, ErrorCorrectionLevel, Version},
};

/**
 * Tests {@link DecodedBitStreamParser}.
 *
 * @author Sean Owen
 */

#[test]
fn testSimpleByteMode() {
    let mut builder = BitSourceBuilder::new();
    builder.write(0x04, 4); // Byte mode
    builder.write(0x03, 8); // 3 bytes
    builder.write(0xF1, 8);
    builder.write(0xF2, 8);
    builder.write(0xF3, 8);
    let result = decoded_bit_stream_parser::decode(
        builder.toByteArray(),
        Version::getVersionForNumber(1).expect("unwrap"),
        ErrorCorrectionLevel::H,
        &HashMap::new(),
    )
    .expect("unwrap")
    .getText()
    .to_string();
    assert_eq!("\u{00f1}\u{00f2}\u{00f3}", result);
}

#[test]
fn testSimpleSJIS() {
    let mut builder = BitSourceBuilder::new();
    builder.write(0x04, 4); // Byte mode
    builder.write(0x04, 8); // 4 bytes
    builder.write(0xA1, 8);
    builder.write(0xA2, 8);
    builder.write(0xA3, 8);
    builder.write(0xD0, 8);
    let result = decoded_bit_stream_parser::decode(
        builder.toByteArray(),
        Version::getVersionForNumber(1).expect("unwrap"),
        ErrorCorrectionLevel::H,
        &HashMap::new(),
    )
    .expect("unwrap")
    .getText()
    .to_owned();
    assert_eq!("\u{ff61}\u{ff62}\u{ff63}\u{ff90}", result);
}

#[test]
fn testECI() {
    let mut builder = BitSourceBuilder::new();

    builder.write(0x07, 4); // ECI mode
    builder.write(0x02, 8); // ECI 2 = CP437 encoding
    builder.write(0x04, 4); // Byte mode
    builder.write(0x03, 8); // 3 bytes
    builder.write(0xA1, 8);
    builder.write(0xA2, 8);
    builder.write(0xA3, 8);
    let result = decoded_bit_stream_parser::decode(
        builder.toByteArray(),
        Version::getVersionForNumber(1).expect("unwrap"),
        ErrorCorrectionLevel::H,
        &HashMap::new(),
    )
    .expect("unwrap")
    .getText()
    .to_owned();
    assert_eq!("\u{00ed}\u{00f3}\u{00fa}", result);
}

#[test]
fn testHanzi() {
    let mut builder = BitSourceBuilder::new();

    builder.write(0x0D, 4); // Hanzi mode
    builder.write(0x01, 4); // Subset 1 = GB2312 encoding
    builder.write(0x01, 8); // 1 characters
    builder.write(0x03C1, 13);
    let result = decoded_bit_stream_parser::decode(
        builder.toByteArray(),
        Version::getVersionForNumber(1).expect("unwrap"),
        ErrorCorrectionLevel::H,
        &HashMap::new(),
    )
    .expect("unwrap")
    .getText()
    .to_owned();
    assert_eq!("\u{963f}", result);
}

#[test]
fn testHanziLevel1() {
    let mut builder = BitSourceBuilder::new();

    builder.write(0x0D, 4); // Hanzi mode
    builder.write(0x01, 4); // Subset 1 = GB2312 encoding
    builder.write(0x01, 8); // 1 characters
                            // A5A2 (U+30A2) => A5A2 - A1A1 = 401, 4*60 + 01 = 0181
    builder.write(0x0181, 13);
    let result = decoded_bit_stream_parser::decode(
        builder.toByteArray(),
        Version::getVersionForNumber(1).expect("unwrap"),
        ErrorCorrectionLevel::H,
        &HashMap::new(),
    )
    .expect("unwrap")
    .getText()
    .to_owned();
    assert_eq!("\u{30a2}", result);
}

// TODO definitely need more tests here