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rxing/src/aztec/DetectorTest.rs
Henry Schimke 111baaab81 clippy --fix
2023-03-08 14:37:45 -06:00

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/*
* Copyright 2013 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.
*/
// package com.google.zxing.aztec.detector;
// import com.google.zxing.NotFoundException;
// import com.google.zxing.aztec.AztecDetectorRXingResult;
// import com.google.zxing.aztec.decoder.Decoder;
// import com.google.zxing.aztec.detector.Detector.Point;
// import com.google.zxing.aztec.encoder.AztecCode;
// import com.google.zxing.aztec.encoder.Encoder;
// import com.google.zxing.common.BitMatrix;
// import com.google.zxing.common.DecoderRXingResult;
// import org.junit.Assert;
// import org.junit.Test;
// import java.util.ArrayList;
// import java.util.Arrays;
// import java.util.Collection;
// import java.util.List;
// import java.util.Random;
// import java.util.TreeSet;
use rand::Rng;
use crate::{aztec::decoder, common::BitMatrix, exceptions::Exceptions, Point};
use super::{
detector::{self, Detector},
encoder::{self, AztecCode},
};
/**
* Tests for the Detector
*
* @author Frank Yellin
*/
#[test]
fn test_error_in_parameter_locator_zero_zero() {
// Layers=1, CodeWords=1. So the parameter info and its Reed-Solomon info
// will be completely zero!
test_error_in_parameter_locator("X");
}
#[test]
fn test_error_in_parameter_locator_compact() {
test_error_in_parameter_locator("This is an example Aztec symbol for Wikipedia.");
}
#[test]
fn test_error_in_parameter_locator_not_compact() {
let alphabet = "ABCDEFGHIJKLMNOPQRSTUVWXYabcdefghijklmnopqrstuvwxyz";
test_error_in_parameter_locator(&format!("{alphabet}{alphabet}{alphabet}"));
}
#[test]
fn test_aztec_rxing_result_sample() {
let matrix = BitMatrix::parse_strings(TEST_BARCODE, "X ", " ").expect("string parse success");
let r = Detector::new(&matrix).detect(false);
assert!(r.is_ok());
let r = r.expect("result already tested as ok");
let res = decoder::decode(&r).expect("decode success");
assert_eq!("Histórico", res.getText());
}
// Test that we can tolerate errors in the parameter locator bits
fn test_error_in_parameter_locator(data: &str) {
let aztec =
encoder::aztec_encoder::encode(data, 25, encoder::aztec_encoder::DEFAULT_AZTEC_LAYERS)
.expect("encode should create");
// dbg!(aztec.getMatrix().to_string());
let mut random = rand::thread_rng(); //Random(aztec.getMatrix().hashCode()); // pseudo-random, but deterministic
let layers = aztec.getLayers();
let compact = aztec.isCompact();
let orientation_points = get_orientation_points(&aztec);
for isMirror in [false, true] {
// for (boolean isMirror : new boolean[] { false, true }) {
for matrix in get_rotations(aztec.getMatrix()) {
// for (BitMatrix matrix : getRotations(aztec.getMatrix())) {
// Systematically try every possible 1- and 2-bit error.
for error1 in 0..orientation_points.len() {
// for (int error1 = 0; error1 < orientationPoints.size(); error1++) {
for error2 in error1..orientation_points.len() {
// for (int error2 = error1; error2 < orientationPoints.size(); error2++) {
let mut copy = if isMirror {
transpose(&matrix)
} else {
clone(&matrix)
};
copy.flip_coords(
(orientation_points.get(error1).unwrap().x as i32).unsigned_abs(),
(orientation_points.get(error1).unwrap().y as i32).unsigned_abs(),
);
if error2 > error1 {
// if error2 == error1, we only test a single error
copy.flip_coords(
(orientation_points.get(error2).unwrap().x as i32).unsigned_abs(),
(orientation_points.get(error2).unwrap().y as i32).unsigned_abs(),
);
}
// dbg!(copy.to_string());
// dbg!(make_larger(&copy, 3).to_string());
// The detector doesn't seem to work when matrix bits are only 1x1. So magnify.
// dbg!(isMirror, error1, error2);
let r = Detector::new(&make_larger(&copy, 3)).detect(isMirror);
assert!(
r.is_ok(),
"decode should be ok: {isMirror:?}, {error1}, {error2}"
);
let r = r.expect("result already tested as ok");
assert_eq!(r.getNbLayers(), layers);
assert_eq!(r.isCompact(), compact);
let res = decoder::decode(&r).unwrap_or_else(|_| {
panic!("decode should be ok: {isMirror}, {error1}, {error2}")
});
assert_eq!(data, res.getText());
}
}
// Try a few random three-bit errors;
for _i in 0..5 {
// for (int i = 0; i < 5; i++) {
let mut copy = clone(&matrix);
let mut errors = Vec::new();
while errors.len() < 3 {
// Quick and dirty way of getting three distinct integers between 1 and n.
errors.push(random.gen_range(0..orientation_points.len()));
}
for error in errors {
// for (int error : errors) {
copy.flip_coords(
orientation_points.get(error).unwrap().x as u32,
orientation_points.get(error).unwrap().y as u32,
);
// copy.flip_coords(
// orientation_points.get(error).unwrap().get_x().abs() as u32,
// orientation_points.get(error).unwrap().get_y().abs() as u32,
// );
}
// try {
if let Err(res) = detector::Detector::new(&make_larger(&copy, 3)).detect(false) {
if let Exceptions::NotFoundException(_msg) = res {
// all ok
} else {
panic!("Only Exceptions::NotFoundException allowed, got {res}");
}
} else {
let r = Detector::new(&make_larger(&copy, 3)).detect(false);
assert!(r.is_ok());
let r = r.expect("result already tested as ok");
assert_eq!(r.getNbLayers(), layers);
assert_eq!(r.isCompact(), compact);
let res = decoder::decode(&r).expect("decode should be ok");
assert_eq!(data, res.getText());
//panic!("Should be unable to detect given value.");
}
}
}
}
}
// Zooms a bit matrix so that each bit is factor x factor
fn make_larger(input: &BitMatrix, factor: u32) -> BitMatrix {
let width = input.getWidth();
let mut output = BitMatrix::with_single_dimension(width * factor).expect("new");
for inputY in 0..width {
// for (int inputY = 0; inputY < width; inputY++) {
for inputX in 0..width {
// for (int inputX = 0; inputX < width; inputX++) {
if input.get(inputX, inputY) {
output
.setRegion(inputX * factor, inputY * factor, factor, factor)
.expect("region set should be ok");
}
}
}
output
}
// Returns a list of the four rotations of the BitMatrix.
fn get_rotations(matrix0: &BitMatrix) -> Vec<BitMatrix> {
let matrix90 = rotate_right(matrix0);
let matrix180 = rotate_right(&matrix90);
let matrix270 = rotate_right(&matrix180);
vec![matrix0.clone(), matrix90, matrix180, matrix270]
// vec![matrix0.clone()]
// vec![matrix90]
// vec![matrix180]
// vec![matrix270]
// vec![matrix0.clone(), matrix90, matrix270, matrix180 ]
}
// Rotates a square BitMatrix to the right by 90 degrees
fn rotate_right(input: &BitMatrix) -> BitMatrix {
let width = input.getWidth();
let mut result = BitMatrix::with_single_dimension(width).expect("new");
for x in 0..width {
// for (int x = 0; x < width; x++) {
for y in 0..width {
// for (int y = 0; y < width; y++) {
if input.get(x, y) {
result.set(y, width - x - 1);
}
}
}
result
}
// Returns the transpose of a bit matrix, which is equivalent to rotating the
// matrix to the right, and then flipping it left-to-right
fn transpose(input: &BitMatrix) -> BitMatrix {
let width = input.getWidth();
let mut result = BitMatrix::with_single_dimension(width).expect("new");
for x in 0..width {
// for (int x = 0; x < width; x++) {
for y in 0..width {
// for (int y = 0; y < width; y++) {
if input.get(x, y) {
result.set(y, x);
}
}
}
result
}
fn clone(input: &BitMatrix) -> BitMatrix {
let width = input.getWidth();
let mut result = BitMatrix::with_single_dimension(width).expect("new");
for x in 0..width {
// for (int x = 0; x < width; x++) {
for y in 0..width {
// for (int y = 0; y < width; y++) {
if input.get(x, y) {
result.set(x, y);
}
}
}
result
}
fn get_orientation_points(code: &AztecCode) -> Vec<Point> {
let center = code.getMatrix().getWidth() as i32 / 2;
let offset = if code.isCompact() { 5 } else { 7 };
let mut result = Vec::new();
let mut xSign: i32 = -1;
while xSign <= 1 {
// for (int xSign = -1; xSign <= 1; xSign += 2) {
let mut ySign: i32 = -1;
while ySign <= 1 {
// for (int ySign = -1; ySign <= 1; ySign += 2) {
result.push(Point::from((
center + xSign * offset,
center + ySign * offset,
)));
result.push(Point::from((
center + xSign * (offset - 1),
center + ySign * offset,
)));
result.push(Point::from((
center + xSign * offset,
center + ySign * (offset - 1),
)));
ySign += 2;
}
xSign += 2;
}
result
}
const TEST_BARCODE: &str = r" X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X
";
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