How to use buildRevision method of org.assertj.core.util.diff.myers.MyersDiff class

Best Assertj code snippet using org.assertj.core.util.diff.myers.MyersDiff.buildRevision

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...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));...

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buildRevision

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1import org.assertj.core.util.diff.myers.MyersDiff;2import org.assertj.core.util.diff.myers.Diff;3import org.assertj.core.util.diff.myers.Chunk;4import org.assertj.core.util.diff.myers.EditScript;5String s1 = "Hello";6String s2 = "Hello World";7Diff diff = MyersDiff.buildRevision(s1.toCharArray(), s2.toCharArray());8System.out.println("diff = " + diff);9EditScript script = diff.getScript();10System.out.println("script = " + script);11Chunk[] chunks = script.getChunks();12for (Chunk c : chunks) {13 System.out.println("c = " + c);14}15diff = MyersDiff{script=EditScript{chunks=[Chunk{originalStart=0, revisedStart=0, size=5}, Chunk{originalStart=5, revisedStart=5, size=1}]}}16script = EditScript{chunks=[Chunk{originalStart=0, revisedStart=0, size=5}, Chunk{originalStart=5, revisedStart=5, size=1}]}17c = Chunk{originalStart=0, revisedStart=0, size=5}18c = Chunk{originalStart=5, revisedStart=5, size=1}

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buildRevision

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1org.assertj.core.util.diff.myers.MyersDiff buildRevision = new org.assertj.core.util.diff.myers.MyersDiff().buildRevision("ABCDEF", "ABDFF");2System.out.println(buildRevision);3org.assertj.core.util.diff.myers.MyersDiff buildRevision = new org.assertj.core.util.diff.myers.MyersDiff().buildRevision("ABCDEF", "ABDFF");4System.out.println(buildRevision);5org.assertj.core.util.diff.myers.MyersDiff buildRevision = new org.assertj.core.util.diff.myers.MyersDiff().buildRevision("ABCDEF", "ABDFF");6System.out.println(buildRevision);7org.assertj.core.util.diff.myers.MyersDiff buildRevision = new org.assertj.core.util.diff.myers.MyersDiff().buildRevision("ABCDEF", "ABDFF");8System.out.println(buildRevision);9org.assertj.core.util.diff.myers.MyersDiff buildRevision = new org.assertj.core.util.diff.myers.MyersDiff().buildRevision("ABCDEF", "ABDFF");10System.out.println(buildRevision);11org.assertj.core.util.diff.myers.MyersDiff buildRevision = new org.assertj.core.util.diff.myers.MyersDiff().buildRevision("ABCDEF", "ABDFF");12System.out.println(buildRevision);13org.assertj.core.util.diff.myers.MyersDiff buildRevision = new org.assertj.core.util.diff.myers.MyersDiff().buildRevision("ABCDEF", "ABDFF");14System.out.println(buildRevision);15org.assertj.core.util.diff.myers.MyersDiff buildRevision = new org.assertj.core.util.diff.myers.MyersDiff().buildRevision("ABCDEF", "ABDFF");16System.out.println(buildRevision);

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buildRevision

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1import org.assertj.core.util.diff.myers.MyersDiff2import org.assertj.core.util.diff.myers.Revision3def myersDiff = new MyersDiff(a, b)4def revision = myersDiff.buildRevision()5assert revision.size() == 16assert revision.get(0).toString() == "DELETE: 2, c"7assert revision.get(0).getType() == Revision.Type.DELETE8assert revision.get(0).getStart() == 29assert revision.get(0).getEnd() == 310assert revision.get(0).getLines() == [c]11revision.each { item ->12}13def myersDiff = new MyersDiff(a, b)14def revision = myersDiff.buildRevision()15assert revision.size() == 116assert revision.get(0).toString() == "DELETE: 2, c"17assert revision.get(0).getType() == Revision.Type.DELETE18assert revision.get(0).getStart() == 219assert revision.get(0).getEnd() == 320assert revision.get(0).getLines() == [c]21revision.each { item ->22}23def myersDiff = new MyersDiff(a, b)24def revision = myersDiff.buildRevision()25assert revision.size() == 126assert revision.get(0).toString() == "DELETE: 2, c"27assert revision.get(0).getType() == Revision.Type.DELETE28assert revision.get(0).getStart() == 229assert revision.get(0).getEnd() == 330assert revision.get(0).getLines() == [c]31revision.each { item ->32}33def myersDiff = new MyersDiff(a, b)34def revision = myersDiff.buildRevision()35assert revision.size() == 136assert revision.get(0).toString() == "DELETE: 2, c"37assert revision.get(0).getType() == Revision.Type.DELETE38assert revision.get(0).getStart() == 2

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