How to use Delta method of org.assertj.core.util.diff.Delta class

Best Assertj code snippet using org.assertj.core.util.diff.Delta.Delta

Source:MyersDiff.java Github

copy

Full Screen

...14import static org.assertj.core.util.Preconditions.checkArgument;15import static org.assertj.core.util.Preconditions.checkState;16import java.util.ArrayList;17import java.util.List;18import org.assertj.core.util.diff.ChangeDelta;19import org.assertj.core.util.diff.Chunk;20import org.assertj.core.util.diff.DeleteDelta;21import org.assertj.core.util.diff.Delta;22import org.assertj.core.util.diff.DiffAlgorithm;23import org.assertj.core.util.diff.InsertDelta;24import org.assertj.core.util.diff.Patch;25/**26 * Copy from https://code.google.com/p/java-diff-utils/.27 * <p>28 * A clean-room implementation of <a href="http://www.cs.arizona.edu/people/gene/">29 * Eugene Myers</a> differencing algorithm.30 *31 * <p> See the paper at <a href="http://www.cs.arizona.edu/people/gene/PAPERS/diff.ps">32 * http://www.cs.arizona.edu/people/gene/PAPERS/diff.ps</a></p>33 *34 * @author <a href="mailto:juanco@suigeneris.org">Juanco Anez</a>35 * @param <T> The type of the compared elements in the 'lines'.36 */37public class MyersDiff<T> implements DiffAlgorithm<T> {38 /** The equalizer. */39 private final Equalizer<T> equalizer;40 /**41 * Constructs an instance of the Myers differencing algorithm.42 */43 public MyersDiff() {44 /** Default equalizer. */45 equalizer = new Equalizer<T>() {46 @Override47 public boolean equals(T original, T revised) {48 return original.equals(revised);49 }50 };51 }52 /**53 * {@inheritDoc}54 *55 * Return empty diff if get the error while procession the difference.56 */57 public Patch<T> diff(final List<T> original, final List<T> revised) {58 checkArgument(original != null, "original list must not be null");59 checkArgument(revised != null, "revised list must not be null");60 PathNode path;61 try {62 path = buildPath(original, revised);63 return buildRevision(path, original, revised);64 } catch (IllegalStateException e) {65 e.printStackTrace();66 return new Patch<>();67 }68 }69 /**70 * Computes the minimum diffpath that expresses de differences71 * between the original and revised sequences, according72 * to Gene Myers differencing algorithm.73 *74 * @param orig The original sequence.75 * @param rev The revised sequence.76 * @return A minimum {@link PathNode Path} across the differences graph.77 * @throws IllegalStateException if a diff path could not be found.78 */79 public PathNode buildPath(final List<T> orig, final List<T> rev) {80 checkArgument(orig != null, "original sequence is null");81 checkArgument(rev != null, "revised sequence is null");82 // these are local constants83 final int N = orig.size();84 final int M = rev.size();85 final int MAX = N + M + 1;86 final int size = 1 + 2 * MAX;87 final int middle = size / 2;88 final PathNode diagonal[] = new PathNode[size];89 diagonal[middle + 1] = new Snake(0, -1, null);90 for (int d = 0; d < MAX; d++) {91 for (int k = -d; k <= d; k += 2) {92 final int kmiddle = middle + k;93 final int kplus = kmiddle + 1;94 final int kminus = kmiddle - 1;95 PathNode prev;96 int i;97 if ((k == -d) || (k != d && diagonal[kminus].i < diagonal[kplus].i)) {98 i = diagonal[kplus].i;99 prev = diagonal[kplus];100 } else {101 i = diagonal[kminus].i + 1;102 prev = diagonal[kminus];103 }104 diagonal[kminus] = null; // no longer used105 int j = i - k;106 PathNode node = new DiffNode(i, j, prev);107 // orig and rev are zero-based108 // but the algorithm is one-based109 // that's why there's no +1 when indexing the sequences110 while (i < N && j < M && equals(orig.get(i), rev.get(j))) {111 i++;112 j++;113 }114 if (i > node.i) node = new Snake(i, j, node);115 diagonal[kmiddle] = node;116 if (i >= N && j >= M) return diagonal[kmiddle];117 }118 diagonal[middle + d - 1] = null;119 }120 // According to Myers, this cannot happen121 throw new IllegalStateException("could not find a diff path");122 }123 private boolean equals(T orig, T rev) {124 return equalizer.equals(orig, rev);125 }126 /**127 * Constructs a {@link Patch} from a difference path.128 *129 * @param path The path.130 * @param orig The original sequence.131 * @param rev The revised sequence.132 * @return A {@link Patch} script corresponding to the path.133 */134 public Patch<T> buildRevision(PathNode path, List<T> orig, List<T> rev) {135 checkArgument(path != null, "path is null");136 checkArgument(orig != null, "original sequence is null");137 checkArgument(rev != null, "revised sequence is null");138 Patch<T> patch = new Patch<>();139 if (path.isSnake())140 path = path.prev;141 while (path != null && path.prev != null && path.prev.j >= 0) {142 checkState(!path.isSnake(), "bad diffpath: found snake when looking for diff");143 int i = path.i;144 int j = path.j;145 path = path.prev;146 int ianchor = path.i;147 int janchor = path.j;148 Chunk<T> original = new Chunk<>(ianchor, copyOfRange(orig, ianchor, i));149 Chunk<T> revised = new Chunk<>(janchor, copyOfRange(rev, janchor, j));150 Delta<T> delta;151 if (original.size() == 0 && revised.size() != 0) {152 delta = new InsertDelta<>(original, revised);153 } else if (original.size() > 0 && revised.size() == 0) {154 delta = new DeleteDelta<>(original, revised);155 } else {156 delta = new ChangeDelta<>(original, revised);157 }158 patch.addDelta(delta);159 if (path.isSnake()) path = path.prev;160 }161 return patch;162 }163 /**164 * Creates a new list containing the elements returned by {@link List#subList(int, int)}.165 * @param original The original sequence. Must not be {@code null}.166 * @param fromIndex low endpoint (inclusive) of the subList.167 * @param to high endpoint (exclusive) of the subList.168 * @return A new list of the specified range within the original list.169 170 */171 private List<T> copyOfRange(final List<T> original, final int fromIndex, final int to) {172 return new ArrayList<>(original.subList(fromIndex, to));...

Full Screen

Full Screen

Source:JsonDiff.java Github

copy

Full Screen

1package com.trickl.assertj.core.internal;2import com.trickl.assertj.core.api.json.JsonContainer;3import com.trickl.assertj.util.diff.JsonFieldDelta;4import com.trickl.assertj.util.diff.JsonRootDelta;5import java.io.IOException;6import java.util.Collections;7import java.util.LinkedList;8import java.util.List;9import org.assertj.core.util.VisibleForTesting;10import org.assertj.core.util.diff.Delta;11import org.json.JSONException;12import org.skyscreamer.jsonassert.FieldComparisonFailure;13import org.skyscreamer.jsonassert.JSONCompare;14import org.skyscreamer.jsonassert.JSONCompareResult;15import org.skyscreamer.jsonassert.comparator.JSONComparator;16/** Compares the contents of two JSON objects. */17@VisibleForTesting18public class JsonDiff {19 /**20 * Compares JSON object provided to the expected JSON object using provided comparator, and21 * returns the results of the comparison.22 *23 * @param actual actual JSON object24 * @param expected expected JSON object25 * @param comparator comparator to use26 * @return A list of differences27 * @throws IOException IF there's an error parsing the JSON28 */29 @VisibleForTesting30 public List<Delta<String>> diff(31 JsonContainer actual, JsonContainer expected, JSONComparator comparator) throws IOException {32 try {33 String expectedStr = expected.getJson();34 String actualStr = actual.getJson();35 JSONCompareResult result = JSONCompare.compareJSON(expectedStr, actualStr, comparator);36 return asDiff(result, expectedStr, actualStr);37 } catch (JSONException ex) {38 throw new IOException(ex);39 }40 }41 private List<Delta<String>> asDiff(JSONCompareResult result, String expectedStr, String actualStr)42 throws JSONException {43 if (result.passed()) {44 return Collections.emptyList();45 }46 List<Delta<String>> diffs = new LinkedList<>();47 for (FieldComparisonFailure missingField : result.getFieldMissing()) {48 diffs.add(new JsonFieldDelta<>(missingField, Delta.TYPE.DELETE));49 }50 for (FieldComparisonFailure changedField : result.getFieldFailures()) {51 diffs.add(new JsonFieldDelta<>(changedField, Delta.TYPE.CHANGE));52 }53 for (FieldComparisonFailure unexpectedField : result.getFieldUnexpected()) {54 diffs.add(new JsonFieldDelta<>(unexpectedField, Delta.TYPE.INSERT));55 }56 if (diffs.isEmpty()) {57 String expectedNoFormat = expectedStr.replace("\n", "").replace("\r", "");58 String actualNoFormat = actualStr.replace("\n", "").replace("\r", "");59 diffs.add(new JsonRootDelta<>(expectedNoFormat, actualNoFormat, result.getMessage()));60 }61 return diffs;62 }63}

Full Screen

Full Screen

Source:ShouldHaveContent_create_Test.java Github

copy

Full Screen

...20import static org.mockito.Mockito.when;21import java.util.List;22import org.assertj.core.description.TextDescription;23import org.assertj.core.util.Lists;24import org.assertj.core.util.diff.Delta;25import org.junit.Test;26public class ShouldHaveContent_create_Test {27 private static final String DIFF = "diff !";28 @Test29 public void should_create_error_message() {30 final FakeFile file = new FakeFile("xyz");31 @SuppressWarnings("unchecked")32 Delta<String> delta = mock(Delta.class);33 when(delta.toString()).thenReturn(DIFF);34 List<Delta<String>> diffs = Lists.newArrayList(delta);35 ErrorMessageFactory factory = shouldHaveContent(file, defaultCharset(), diffs);36 String message = factory.create(new TextDescription("Test"), STANDARD_REPRESENTATION);37 assertThat(message).isEqualTo(format("[Test] %n"38 + "File:%n"39 + " <xyz>%n"40 + "read with charset <%s> does not have the expected content:%n%n"41 + DIFF,42 defaultCharset().name()));43 }44}...

Full Screen

Full Screen

Delta

Using AI Code Generation

copy

Full Screen

1import org.assertj.core.util.diff.Delta;2import org.assertj.core.util.diff.DiffUtils;3import org.assertj.core.util.diff.Patch;4import java.util.ArrayList;5import java.util.List;6public class Main {7 public static void main(String[] args) {8 List<String> original = new ArrayList<>();9 original.add("a");10 original.add("b");11 original.add("c");12 original.add("d");13 original.add("e");14 original.add("f");15 original.add("g");16 original.add("h");17 original.add("i");18 original.add("j");19 original.add("k");20 original.add("l");21 original.add("m");22 original.add("n");23 original.add("o");24 original.add("p");25 original.add("q");26 original.add("r");27 original.add("s");28 original.add("t");29 original.add("u");30 original.add("v");31 original.add("w");32 original.add("x");33 original.add("y");34 original.add("z");35 List<String> revised = new ArrayList<>();36 revised.add("a");37 revised.add("b");38 revised.add("c");39 revised.add("d");40 revised.add("e");41 revised.add("f");42 revised.add("g");43 revised.add("h");44 revised.add("i");45 revised.add("j");46 revised.add("k");47 revised.add("l");48 revised.add("m");49 revised.add("n");50 revised.add("o");51 revised.add("p");52 revised.add("q");53 revised.add("r");54 revised.add("s");55 revised.add("t");56 revised.add("u");57 revised.add("v");58 revised.add("w");59 revised.add("x");60 revised.add("y");61 revised.add("z");62 Patch patch = DiffUtils.diff(original, revised);63 for (Delta delta : patch.getDeltas()) {64 System.out.println(delta);65 }66 }67}

Full Screen

Full Screen

Delta

Using AI Code Generation

copy

Full Screen

1package com.delta;2import java.util.ArrayList;3import java.util.List;4import org.assertj.core.util.diff.Delta;5import org.assertj.core.util.diff.DeltaVisitor;6import org.assertj.core.util.diff.DiffUtils;7import org.assertj.core.util.diff.Patch;8public class DeltaDiff {9public static void main(String[] args) {10 List<String> original = new ArrayList<String>();11 List<String> revised = new ArrayList<String>();12 original.add("1");13 original.add("2");14 original.add("3");15 original.add("4");16 original.add("5");17 original.add("6");18 original.add("7");19 original.add("8");20 original.add("9");21 original.add("10");22 original.add("11");23 original.add("12");24 original.add("13");25 original.add("14");26 original.add("15");27 original.add("16");28 original.add("17");29 original.add("18");30 original.add("19");31 original.add("20");32 original.add("21");33 original.add("22");34 original.add("23");35 original.add("24");36 original.add("25");37 original.add("26");38 original.add("27");39 original.add("28");40 original.add("29");41 original.add("30");42 original.add("31");43 original.add("32");44 original.add("33");45 original.add("34");46 original.add("35");47 original.add("36");48 original.add("37");49 original.add("38");50 original.add("39");51 original.add("40");52 original.add("41");53 original.add("42");54 original.add("43");55 original.add("44");56 original.add("45");57 original.add("46");58 original.add("47");59 original.add("48");60 original.add("49");61 original.add("50");62 original.add("51");63 original.add("52");64 original.add("53");65 original.add("54");66 original.add("55");67 original.add("56");68 original.add("57");69 original.add("58");70 original.add("59");71 original.add("60");72 original.add("61");73 original.add("62");74 original.add("63");75 original.add("64");76 original.add("65");77 original.add("66");78 original.add("67");

Full Screen

Full Screen

Delta

Using AI Code Generation

copy

Full Screen

1import org.assertj.core.util.diff.Delta;2import org.assertj.core.util.diff.Delta.TYPE;3import org.assertj.core.util.diff.DiffUtils;4import org.assertj.core.util.diff.Patch;5import java.util.Arrays;6import java.util.List;7public class DiffUtilsExample {8public static void main(String[] args) {9List<String> original = Arrays.asList("a", "b", "c");10List<String> revised = Arrays.asList("a", "d", "c");11Patch patch = DiffUtils.diff(original, revised);12for (Delta delta: patch.getDeltas()) {13System.out.println(delta);14System.out.println(delta.getType());15System.out.println(delta.getOriginal());16System.out.println(delta.getRevised());17System.out.println(delta.getSource());18System.out.println(delta.getTarget());19}20}21}

Full Screen

Full Screen

Delta

Using AI Code Generation

copy

Full Screen

1import java.util.ArrayList;2import java.util.Arrays;3import java.util.List;4import org.assertj.core.util.diff.Delta;5import org.assertj.core.util.diff.Delta.TYPE;6public class DeltaMethod {7 public static void main(String[] args) {8 List<String> original = Arrays.asList("a", "b", "c", "d", "e", "f");9 List<String> revised = Arrays.asList("a", "c", "b", "e", "f", "g");10 List<Delta<String>> deltas = DeltaMethod.computeDelta(original, revised);11 System.out.println(deltas);12 }13 public static <T> List<Delta<T>> computeDelta(List<T> original, List<T> revised) {14 List<Delta<T>> deltas = new ArrayList<Delta<T>>();15 int originalSize = original.size();16 int revisedSize = revised.size();17 int start = 0;18 while (start < originalSize && start < revisedSize && original.get(start).equals(revised.get(start))) {19 start++;20 }21 int end = 0;22 while (end < originalSize - start && end < revisedSize - start && original.get(originalSize - end - 1).equals(revised.get(revisedSize - end - 1))) {23 end++;24 }25 if (start > 0 || end > 0) {26 if (start > 0) {27 deltas.add(new Delta<T>(TYPE.EQUAL, original.subList(0, start)));28 }29 if (start < originalSize - end) {30 deltas.add(new Delta<T>(TYPE.CHANGE, original.subList(start, originalSize - end), revised.subList(start, revisedSize - end)));31 }32 if (start > 0 || start < originalSize - end) {33 deltas.add(new Delta<T>(TYPE.EQUAL, original.subList(originalSize - end, originalSize)));34 }35 } else {36 deltas.add(new Delta<T>(TYPE.CHANGE, original, revised));37 }38 return deltas;39 }40}

Full Screen

Full Screen

Delta

Using AI Code Generation

copy

Full Screen

1import java.io.File;2import java.io.IOException;3import java.util.List;4import org.assertj.core.util.diff.Delta;5import org.assertj.core.util.diff.DiffUtils;6import org.assertj.core.util.diff.Patch;7public class DeltaExample {8 public static void main(String[] args) throws IOException {9 List<String> original = FileUtils.readLines(new File("C:\\Users\\gupta\\Desktop\\1.txt"));10 List<String> revised = FileUtils.readLines(new File("C:\\Users\\gupta\\Desktop\\2.txt"));11 Patch patch = DiffUtils.diff(original, revised);12 for (Delta delta : patch.getDeltas()) {13 System.out.println(delta);14 }15 }16}

Full Screen

Full Screen

Delta

Using AI Code Generation

copy

Full Screen

1package org.assertj.core.util.diff;2import java.util.ArrayList;3import java.util.List;4import org.junit.Test;5public class DeltaTest {6public void testDelta() {7List<String> original = new ArrayList<String>();8original.add("a");9original.add("b");10original.add("c");11original.add("d");12original.add("e");13List<String> revised = new ArrayList<String>();14revised.add("a");15revised.add("c");16revised.add("b");17revised.add("f");18revised.add("g");19Patch patch = DiffUtils.diff(original, revised);20List<Delta> deltas = patch.getDeltas();21for (Delta delta : deltas) {22System.out.println(delta);23}24}25}26package org.assertj.core.util.diff;27import java.util.ArrayList;28import java.util.List;29import org.junit.Test;30public class DiffRowGeneratorTest {31public void testDiffRowGenerator() {32List<String> original = new ArrayList<String>();33original.add("a");34original.add("b");35original.add("c");36original.add("d");37original.add("e");38List<String> revised = new ArrayList<String>();39revised.add("a");40revised.add("c");41revised.add("b");42revised.add("f");43revised.add("g");44Patch patch = DiffUtils.diff(original, revised);45DiffRowGenerator generator = new DiffRowGenerator.Builder().showInlineDiffs(true).inlineDiffByWord(true).build();46List<DiffRow> rows = generator.generateDiffRows(original, revised, patch);47for (DiffRow row : rows) {48System.out.println(row);49}50}51}

Full Screen

Full Screen

Delta

Using AI Code Generation

copy

Full Screen

1import java.util.List;2import org.assertj.core.util.diff.Delta;3import org.assertj.core.util.diff.DiffUtils;4public class 1 {5 public static void main(String[] args) {6 String original = "This is a test";7 String revised = "This is a test too";8 List<Delta> deltas = DiffUtils.diff(original, revised).getDeltas();9 for (Delta delta : deltas) {10 System.out.println(delta);11 }12 }13}

Full Screen

Full Screen

Delta

Using AI Code Generation

copy

Full Screen

1package com.mycompany.app;2import java.io.File;3import java.io.IOException;4import java.util.List;5import org.assertj.core.util.diff.Delta;6import org.assertj.core.util.diff.DiffUtils;7import org.assertj.core.util.diff.Patch;8public class App {9 public static void main(String[] args) {10 File original = new File("original.txt");11 File revised = new File("revised.txt");12 List<String> originalLines = null;13 List<String> revisedLines = null;14 try {15 originalLines = FileUtils.readLines(original);16 revisedLines = FileUtils.readLines(revised);17 } catch (IOException e) {18 e.printStackTrace();19 }20 Patch<String> patch = DiffUtils.diff(originalLines, revisedLines);21 for (Delta<String> delta : patch.getDeltas()) {22 System.out.println(delta);23 }24 }25}26package com.mycompany.app;27import java.io.File;28import java.io.IOException;29import java.util.List;30import org.apache.commons.io.FileUtils;31import org.apache.commons.io.LineIterator;32public class App {33 public static void main(String[] args) {34 File original = new File("original.txt");35 File revised = new File("revised.txt");36 List<String> originalLines = null;37 List<String> revisedLines = null;38 try {39 originalLines = FileUtils.readLines(original);40 revisedLines = FileUtils.readLines(revised);41 } catch (IOException e) {42 e.printStackTrace();43 }44 LineIterator originalIterator = FileUtils.lineIterator(original);45 LineIterator revisedIterator = FileUtils.lineIterator(revised);46 while (originalIterator.hasNext() || revisedIterator.hasNext()) {47 String originalLine = originalIterator.nextLine();48 String revisedLine = revisedIterator.nextLine();49 if (!originalLine.equals(revisedLine)) {50 System.out.println(originalLine + " -> " + revisedLine);51 }52 }53 }54}

Full Screen

Full Screen

Delta

Using AI Code Generation

copy

Full Screen

1import java.io.*;2import java.util.*;3import org.assertj.core.util.diff.*;4public class 1 {5 public static void main(String[] args) throws IOException {6 String file1 = "file1.txt";7 String file2 = "file2.txt";8 List<String> original = fileToLines(file1);9 List<String> revised = fileToLines(file2);10 Patch patch = DiffUtils.diff(original, revised);11 for (Delta delta : patch.getDeltas()) {12 System.out.println(delta);13 }14 }15 public static List<String> fileToLines(String filename) throws IOException {16 List<String> lines = new ArrayList<String>();17 String line = "";18 BufferedReader in = new BufferedReader(new FileReader(filename));19 while ((line = in.readLine()) != null) {20 lines.add(line);21 }22 return lines;23 }24}

Full Screen

Full Screen

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.

LambdaTest Learning Hubs:

YouTube

You could also refer to video tutorials over LambdaTest YouTube channel to get step by step demonstration from industry experts.

Run Assertj automation tests on LambdaTest cloud grid

Perform automation testing on 3000+ real desktop and mobile devices online.

... View sample repo... View DocumentationSign up Free
›
_

Most used method in Delta

Try LambdaTest Now !!

Get 100 minutes of automation test minutes FREE!!

...
Sign up with GoogleSign up with Email
Next-Gen App & Browser Testing Cloud

Was this article helpful?

Helpful

NotHelpful