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Code Issues Projects Releases Wiki Activity

Adding Range to better report a condensed description of differences.

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This commit is contained in:
Rob Greene 2022-03-14 20:15:51 -05:00
parent 9a0a034849
commit fdb4a6d566
3 changed files with 157 additions and 5 deletions
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24
lib/ac-api/src/main/java/com/webcodepro/applecommander/storage/compare/DiskDiff.java
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@ -24,12 +24,14 @@ import java.util.Arrays;
import java.util.List;
import java.util.Objects;
import java.util.function.BiConsumer;
import java.util.stream.Collectors;
import com.webcodepro.applecommander.storage.Disk;
import com.webcodepro.applecommander.storage.DiskGeometry;
import com.webcodepro.applecommander.storage.DiskUnrecognizedException;
import com.webcodepro.applecommander.storage.FormattedDisk;
import com.webcodepro.applecommander.storage.physical.ImageOrder;
import com.webcodepro.applecommander.util.Range;
/**
* Perform a disk comparison based on selected strategy.
@ -123,12 +125,21 @@ public class DiskDiff {
orderA.getBlocksOnDevice(), orderB.getBlocksOnDevice());
return;
}
List<Integer> unequalBlocks = new ArrayList<>();
for (int block=0; block<orderA.getBlocksOnDevice(); block++) {
byte[] blockA = orderA.readBlock(block);
byte[] blockB = orderB.readBlock(block);
if (!Arrays.equals(blockA, blockB)) {
results.addError("Block #%d does not match.", block);
unequalBlocks.add(block);
}
}
for (Range r : Range.from(unequalBlocks)) {
if (r.size() == 1) {
results.addError("Block #%s does not match.", r);
}
else {
results.addError("Blocks #%s do not match.", r);
}
}
}
@ -145,17 +156,20 @@ public class DiskDiff {
}
for (int track=0; track<orderA.getTracksPerDisk(); track++) {
List<String> unequalSectors = new ArrayList<>();
List<Integer> unequalSectors = new ArrayList<>();
for (int sector=0; sector<orderA.getSectorsPerTrack(); sector++) {
byte[] sectorA = orderA.readSector(track, sector);
byte[] sectorB = orderB.readSector(track, sector);
if (!Arrays.equals(sectorA, sectorB)) {
unequalSectors.add(Integer.toString(sector));
unequalSectors.add(sector);
}
}
if (!unequalSectors.isEmpty()) {
results.addError("Track %d does not match on sectors %s", track,
String.join(",", unequalSectors));
Range.from(unequalSectors)
.stream()
.map(Range::toString)
.collect(Collectors.joining(",")));
}
}
}

89
lib/ac-api/src/main/java/com/webcodepro/applecommander/util/Range.java Normal file
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@ -0,0 +1,89 @@
/*
* AppleCommander - An Apple ][ image utility.
* Copyright (C) 2002-2022 by Robert Greene and others
* robgreene at users.sourceforge.net
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package com.webcodepro.applecommander.util;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
/**
* Represents a range of numbers with helper methods to put them together.
*/
public class Range {
private int first;
private int last;
public Range(int first, int last) {
if (first < last) {
this.first = first;
this.last = last;
}
else {
this.first = last;
this.last = first;
}
}
public int getFirst() {
return first;
}
public int getLast() {
return last;
}
public int size() {
return last - first + 1;
}
@Override
public String toString() {
if (first == last) {
return String.format("%d", first);
}
else {
return String.format("%d-%d", first, last);
}
}
public static List<Range> from(List<Integer> numbers) {
List<Range> ranges = new ArrayList<>();
Collections.sort(numbers);
int first = -1;
int last = -1;
for (int number : numbers) {
if (first == -1) {
first = last = number;
}
else if (number == last+1) {
last = number;
}
else {
ranges.add(new Range(first, last));
first = last = number;
}
}
if (first != -1) {
ranges.add(new Range(first, last));
}
return ranges;
}
}

49
lib/ac-api/src/test/java/com/webcodepro/applecommander/util/RangeTest.java Normal file
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@ -0,0 +1,49 @@
/*
* AppleCommander - An Apple ][ image utility.
* Copyright (C) 2002-2022 by Robert Greene and others
* robgreene at users.sourceforge.net
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package com.webcodepro.applecommander.util;
import static org.junit.Assert.assertEquals;
import java.util.Arrays;
import org.junit.Test;
public class RangeTest {
@Test
public void testToString() {
assertEquals("1", new Range(1,1).toString());
assertEquals("1-5", new Range(1,5).toString());
}
@Test
public void testFrom() {
assertEquals("[1-3, 5, 7, 9-12]", Range.from(Arrays.asList(1,2,3,5,7,9,10,11,12)).toString());
}
@Test
public void testFromUnordered() {
assertEquals("[1-3, 5, 7, 9-12]", Range.from(Arrays.asList(9,10,1,5,2,12,3,11,7)).toString());
}
@Test
public void testFromEmpty() {
assertEquals("[]", Range.from(Arrays.asList()).toString());
}
}