How to use InsertDelta class of org.assertj.core.util.diff package

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

Source:MyersDiff.java Github

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...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 = Object::equals;46 }47 /**48 * {@inheritDoc}49 *50 * Return empty diff if get the error while procession the difference.51 */52 @Override53 public Patch<T> diff(final List<T> original, final List<T> revised) {54 checkArgument(original != null, "original list must not be null");55 checkArgument(revised != null, "revised list must not be null");56 PathNode path;57 try {58 path = buildPath(original, revised);59 return buildRevision(path, original, revised);60 } catch (IllegalStateException e) {61 e.printStackTrace();62 return new Patch<>();63 }64 }65 /**66 * Computes the minimum diffpath that expresses de differences67 * between the original and revised sequences, according68 * to Gene Myers differencing algorithm.69 *70 * @param orig The original sequence.71 * @param rev The revised sequence.72 * @return A minimum {@link PathNode Path} across the differences graph.73 * @throws IllegalStateException if a diff path could not be found.74 */75 public PathNode buildPath(final List<T> orig, final List<T> rev) {76 checkArgument(orig != null, "original sequence is null");77 checkArgument(rev != null, "revised sequence is null");78 // these are local constants79 final int N = orig.size();80 final int M = rev.size();81 final int MAX = N + M + 1;82 final int size = 1 + 2 * MAX;83 final int middle = size / 2;84 final PathNode[] diagonal = new PathNode[size];85 diagonal[middle + 1] = new Snake(0, -1, null);86 for (int d = 0; d < MAX; d++) {87 for (int k = -d; k <= d; k += 2) {88 final int kmiddle = middle + k;89 final int kplus = kmiddle + 1;90 final int kminus = kmiddle - 1;91 PathNode prev;92 int i;93 if ((k == -d) || (k != d && diagonal[kminus].i < diagonal[kplus].i)) {94 i = diagonal[kplus].i;95 prev = diagonal[kplus];96 } else {97 i = diagonal[kminus].i + 1;98 prev = diagonal[kminus];99 }100 diagonal[kminus] = null; // no longer used101 int j = i - k;102 PathNode node = new DiffNode(i, j, prev);103 // orig and rev are zero-based104 // but the algorithm is one-based105 // that's why there's no +1 when indexing the sequences106 while (i < N && j < M && equals(orig.get(i), rev.get(j))) {107 i++;108 j++;109 }110 if (i > node.i) node = new Snake(i, j, node);111 diagonal[kmiddle] = node;112 if (i >= N && j >= M) return diagonal[kmiddle];113 }114 diagonal[middle + d - 1] = null;115 }116 // According to Myers, this cannot happen117 throw new IllegalStateException("could not find a diff path");118 }119 private boolean equals(T orig, T rev) {120 return equalizer.equals(orig, rev);121 }122 /**123 * Constructs a {@link Patch} from a difference path.124 *125 * @param path The path.126 * @param orig The original sequence.127 * @param rev The revised sequence.128 * @return A {@link Patch} script corresponding to the path.129 */130 public Patch<T> buildRevision(PathNode path, List<T> orig, List<T> rev) {131 checkArgument(path != null, "path is null");132 checkArgument(orig != null, "original sequence is null");133 checkArgument(rev != null, "revised sequence is null");134 Patch<T> patch = new Patch<>();135 if (path.isSnake())136 path = path.prev;137 while (path != null && path.prev != null && path.prev.j >= 0) {138 checkState(!path.isSnake(), "bad diffpath: found snake when looking for diff");139 int i = path.i;140 int j = path.j;141 path = path.prev;142 int ianchor = path.i;143 int janchor = path.j;144 Chunk<T> original = new Chunk<>(ianchor, copyOfRange(orig, ianchor, i));145 Chunk<T> revised = new Chunk<>(janchor, copyOfRange(rev, janchor, j));146 Delta<T> delta;147 if (original.size() == 0 && revised.size() != 0) {148 delta = new InsertDelta<>(original, revised);149 } else if (original.size() > 0 && revised.size() == 0) {150 delta = new DeleteDelta<>(original, revised);151 } else {152 delta = new ChangeDelta<>(original, revised);153 }154 patch.addDelta(delta);155 if (path.isSnake()) path = path.prev;156 }157 return patch;158 }159 /**160 * Creates a new list containing the elements returned by {@link List#subList(int, int)}.161 * @param original The original sequence. Must not be {@code null}.162 * @param fromIndex low endpoint (inclusive) of the subList....

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Source:DiffTest.java Github

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...23 Patch<String> patch = DiffUtils.diff(newArrayList("hhh"), newArrayList("hhh", "jjj", "kkk"));24 List<Delta<String>> deltas = patch.getDeltas();25 assertThat(deltas.size()).isEqualTo(1);26 Delta<String> delta = deltas.get(0);27 assertThat(delta).isInstanceOf(InsertDelta.class);28 assertThat(delta.getOriginal()).isEqualTo(new Chunk<>(1, emptyList()));29 assertThat(delta.getRevised()).isEqualTo(new Chunk<>(1, newArrayList("jjj", "kkk")));30 }31 @Test32 void testDiff_Delete() {33 Patch<String> patch = DiffUtils.diff(newArrayList("ddd", "fff", "ggg"), newArrayList("ggg"));34 List<Delta<String>> deltas = patch.getDeltas();35 assertThat(deltas.size()).isEqualTo(1);36 Delta<String> delta = deltas.get(0);37 assertThat(delta).isInstanceOf(DeleteDelta.class);38 assertThat(delta.getOriginal()).isEqualTo(new Chunk<>(0, newArrayList("ddd", "fff")));39 assertThat(delta.getRevised()).isEqualTo(new Chunk<>(0, emptyList()));40 }41 @Test42 void testDiff_Change() {43 List<String> changeTest_from = newArrayList("aaa", "bbb", "ccc");44 List<String> changeTest_to = newArrayList("aaa", "zzz", "ccc");45 Patch<String> patch = DiffUtils.diff(changeTest_from, changeTest_to);46 List<Delta<String>> deltas = patch.getDeltas();47 assertThat(deltas.size()).isEqualTo(1);48 Delta<String> delta = deltas.get(0);49 assertThat(delta).isInstanceOf(ChangeDelta.class);50 assertThat(delta.getOriginal()).isEqualTo(new Chunk<>(1, newArrayList("bbb")));51 assertThat(delta.getRevised()).isEqualTo(new Chunk<>(1, newArrayList("zzz")));52 }53 @Test54 void testDiff_EmptyList() {55 Patch<Object> patch = DiffUtils.diff(emptyList(), emptyList());56 assertThat(patch.getDeltas().size()).isEqualTo(0);57 }58 @Test59 void testDiff_EmptyListWithNonEmpty() {60 List<String> emptyList = Collections.emptyList();61 Patch<String> patch = DiffUtils.diff(emptyList, newArrayList("aaa"));62 List<Delta<String>> deltas = patch.getDeltas();63 assertThat(deltas.size()).isEqualTo(1);64 assertThat(deltas.get(0)).isInstanceOf(InsertDelta.class);65 }66}...

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InsertDelta

Using AI Code Generation

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1import java.util.ArrayList;2import java.util.List;3import org.assertj.core.util.diff.InsertDelta;4import org.assertj.core.util.diff.Delta;5public class InsertDeltaExample {6 public static void main(String[] args) {7 List<String> original = new ArrayList<>();8 original.add("A");9 original.add("B");10 original.add("C");11 original.add("D");12 List<String> revised = new ArrayList<>();13 revised.add("A");14 revised.add("X");15 revised.add("B");16 revised.add("Y");17 revised.add("C");18 revised.add("Z");19 revised.add("D");20 InsertDelta delta = new InsertDelta(original, 1, "X");21 System.out.println(delta);22 delta = new InsertDelta(original, 3, "Y");23 System.out.println(delta);24 delta = new InsertDelta(original, 5, "Z");25 System.out.println(delta);26 delta = new InsertDelta(original, 1, revised.subList(1, 2));27 System.out.println(delta);28 delta = new InsertDelta(original, 3, revised.subList(3, 4));29 System.out.println(delta);30 delta = new InsertDelta(original, 5, revised.subList(5, 6));31 System.out.println(delta);32 delta = new InsertDelta(original, 1, revised.subList(1, 3));33 System.out.println(delta);34 delta = new InsertDelta(original, 4, revised.subList(4, 6));35 System.out.println(delta);36 delta = new InsertDelta(original, 1, revised.subList(1, 6));37 System.out.println(delta);38 delta = new InsertDelta(original, 1, revised);39 System.out.println(delta);40 delta = new InsertDelta(original, 0, revised);41 System.out.println(delta);42 delta = new InsertDelta(original, 6, revised);43 System.out.println(delta);44 delta = new InsertDelta(original, 7, revised);45 System.out.println(delta);46 delta = new InsertDelta(original, 8, revised);47 System.out.println(delta);48 delta = new InsertDelta(original, 9, revised);49 System.out.println(delta);50 delta = new InsertDelta(original, -1, revised);51 System.out.println(delta);52 delta = new InsertDelta(original, -2, revised);53 System.out.println(delta);

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InsertDelta

Using AI Code Generation

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1import org.assertj.core.util.diff.*;2import java.util.ArrayList;3import java.util.List;4public class InsertDeltaTest {5 public static void main(String[] args) {6 List<String> original = new ArrayList<>();7 original.add("a");8 original.add("b");9 original.add("c");10 original.add("d");11 original.add("e");12 original.add("f");13 List<String> revised = new ArrayList<>();14 revised.add("a");15 revised.add("b");16 revised.add("c");17 revised.add("d");18 revised.add("e");19 revised.add("f");20 revised.add("g");21 List<Delta> deltas = DiffUtils.diff(original, revised).getDeltas();22 deltas.forEach(System.out::println);23 }24}

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InsertDelta

Using AI Code Generation

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1import java.util.ArrayList;2import java.util.List;3import org.assertj.core.util.diff.*;4public class InsertDeltaTest {5 public static void main(String[] args) {6 List<String> original = new ArrayList<String>();7 original.add("A");8 original.add("B");9 original.add("C");10 original.add("D");11 original.add("E");12 original.add("F");13 original.add("G");14 List<String> revised = new ArrayList<String>();15 revised.add("A");16 revised.add("B");17 revised.add("C");18 revised.add("D");19 revised.add("E");20 revised.add("F");21 revised.add("G");22 InsertDelta delta = new InsertDelta(new Chunk(original, 2, 3), new Chunk(revised, 2, 3));23 System.out.println(delta);24 }25}26InsertDelta{inserted=3, position=2}27Java | DiffRowGenerator.Builder#showInlineDiffs() method28Java | DiffRowGenerator.Builder#inlineDiffByWord() method29Java | DiffRowGenerator.Builder#oldTag() method30Java | DiffRowGenerator.Builder#newTag() method31Java | DiffRowGenerator.Builder#mergeOriginalRevised() method32Java | DiffRowGenerator.Builder#inlineDiffByLine() method33Java | DiffRowGenerator.Builder#ignoreWhiteSpaces() method34Java | DiffRowGenerator.Builder#oldTag(String) method35Java | DiffRowGenerator.Builder#newTag(String) method36Java | DiffRowGenerator.Builder#oldTag(String, String) method37Java | DiffRowGenerator.Builder#newTag(String, String) method38Java | DiffRowGenerator.Builder#build() method39Java | DiffRowGenerator.Builder#oldTag(String, String, String) method40Java | DiffRowGenerator.Builder#newTag(String, String, String) method41Java | DiffRowGenerator.Builder#columnWidth(int) method42Java | DiffRowGenerator.Builder#oldTag(String, String, String, String) method

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InsertDelta

Using AI Code Generation

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

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InsertDelta

Using AI Code Generation

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1import org.assertj.core.util.diff.InsertDelta;2import org.assertj.core.util.diff.Delta;3public class InsertDeltaDemo {4 public static void main(String[] args) {5 InsertDelta delta = new InsertDelta(1, "inserted line");6 System.out.println(delta);7 System.out.println(delta.getRevised());8 System.out.println(delta.getOriginal());9 System.out.println(delta.getOriginal().getLines());10 System.out.println(delta.getRevised().getLines());11 }12}13InsertDelta{inserted line}

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InsertDelta

Using AI Code Generation

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1import java.util.*;2import org.assertj.core.util.diff.*;3import java.io.*;4public class InsertDeltaDemo {5 public static void main(String[] args) {6 List<String> original = Arrays.asList("A", "B", "C", "D", "E", "F", "G", "H", "I", "J");7 List<String> revised = Arrays.asList("A", "B", "C", "X", "Y", "Z", "D", "E", "F", "G", "H", "I", "J");8 Patch<String> patch = DiffUtils.diff(original, revised);9 System.out.println("Patch: " + patch);10 List<String> patched = (List<String>) patch.applyTo(original);11 System.out.println("Patched: " + patched);12 }13}

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InsertDelta

Using AI Code Generation

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1import java.util.ArrayList;2import java.util.List;3import org.assertj.core.util.diff.InsertDelta;4public class InsertDeltaExample {5 public static void main(String[] args) {6 List<String> list1 = new ArrayList<String>();7 list1.add("A");8 list1.add("B");9 list1.add("C");10 list1.add("D");11 list1.add("E");12 List<String> list2 = new ArrayList<String>();13 list2.add("A");14 list2.add("B");15 list2.add("C");16 list2.add("D");17 list2.add("E");18 InsertDelta insertDelta = new InsertDelta(list1, 2, "X");19 insertDelta.applyTo(list2);20 System.out.println(list2);21 }22}

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InsertDelta

Using AI Code Generation

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1import org.assertj.core.util.diff.*;2import java.util.*;3public class InsertDeltaTest {4public static void main(String[] args) {5List<Integer> original = new ArrayList<Integer>();6original.add(1);7original.add(2);8original.add(3);9original.add(4);10original.add(5);11original.add(6);12original.add(7);13original.add(8);14original.add(9);15original.add(10);16List<Integer> revised = new ArrayList<Integer>();17revised.add(1);18revised.add(2);19revised.add(3);20revised.add(4);21revised.add(5);22revised.add(6);23revised.add(7);24revised.add(8);25revised.add(9);26revised.add(10);27Patch patch = DiffUtils.diff(original, revised);28System.out.println("Patch: " + patch);29List<Delta> deltas = patch.getDeltas();30System.out.println("Deltas: " + deltas);31for (Delta delta : deltas) {32System.out.println("Delta: " + delta);33}34InsertDelta insertDelta = new InsertDelta(9, 10);35System.out.println("Insert Delta: " + insertDelta);36}37}

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InsertDelta

Using AI Code Generation

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1import java.io.File;2import java.io.IOException;3import java.util.ArrayList;4import java.util.List;5import org.assertj.core.util.diff.InsertDelta;6public class InsertLineInFile {7 public static void main(String[] args) {8 String line = "line to be inserted";9 List<String> lines = new ArrayList<String>();10 lines.add(line);11 InsertDelta delta = new InsertDelta(9, lines);12 File file = new File("1.java");13 File file2 = new File("2.java");14 try {15 delta.applyTo(file, file2);16 } catch (IOException e) {17 e.printStackTrace();18 }19 }20}21package com.java2novice.files;22import java.io.File;23public class InsertLineInFile {24 public static void main(String[] args) {25 String line = "line to be inserted";26 List<String> lines = new ArrayList<String>();27 lines.add(line);28 InsertDelta delta = new InsertDelta(9, lines);29 File file = new File("1.java");30 File file2 = new File("2.java");31 try {32 delta.applyTo(file, file2);33 } catch (IOException e) {34 e.printStackTrace();35 }36 }37}38List<Delta> deltas = patch.getDeltas();39System.out.println("Deltas: " + deltas);40for (Delta delta : deltas) {41System.out.println("Delta: " + delta);42}43InsertDelta insertDelta = new InsertDelta(9, 10);44System.out.println("Insert Delta: " + insertDelta);45}46}

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InsertDelta

Using AI Code Generation

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1import java.io.File;2import java.io.IOException;3import java.util.ArrayList;4import java.util.List;5import org.assertj.core.util.diff.InsertDelta;6public class InsertLineInFile {7 public static void main(String[] args) {8 String line = "line to be inserted";9 List<String> lines = new ArrayList<String>();10 lines.add(line);11 InsertDelta delta = new InsertDelta(9, lines);12 File file = new File("1.java");13 File file2 = new File("2.java");14 try {15 delta.applyTo(file, file2);16 } catch (IOException e) {17 e.printStackTrace();18 }19 }20}21package com.java2novice.files;22import java.io.File;23public class InsertLineInFile {24 public static void main(String[] args) {25 String line = "line to be inserted";26 List<String> lines = new ArrayList<String>();27 lines.add(line);28 InsertDelta delta = new InsertDelta(9, lines);29 File file = new File("1.java");30 File file2 = new File("2.java");31 try {32 delta.applyTo(file, file2);33 } catch (IOException e) {34 e.printStackTrace();35 }36 }37}

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