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

...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....

Source:DiffTest.java

...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}...

InsertDelta

Using AI Code Generation

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);

InsertDelta

Using AI Code Generation

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}

InsertDelta

Using AI Code Generation

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

InsertDelta

Using AI Code Generation

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}

InsertDelta

Using AI Code Generation

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}

InsertDelta

Using AI Code Generation

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}

InsertDelta

Using AI Code Generation

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}

InsertDelta

Using AI Code Generation

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}

InsertDelta

Using AI Code Generation

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}

InsertDelta

Using AI Code Generation

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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