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

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

Source:MyersDiff.java

...19import org.assertj.core.util.diff.DeleteDelta;20import org.assertj.core.util.diff.Delta;21import org.assertj.core.util.diff.DiffAlgorithm;22import org.assertj.core.util.diff.InsertDelta;23import org.assertj.core.util.diff.Patch;24/**25 * Copy from https://code.google.com/p/java-diff-utils/.26 * <p>27 * A clean-room implementation of <a href="http://www.cs.arizona.edu/people/gene/">28 * Eugene Myers</a> differencing algorithm.29 *30 * <p> See the paper at <a href="http://www.cs.arizona.edu/people/gene/PAPERS/diff.ps">31 * http://www.cs.arizona.edu/people/gene/PAPERS/diff.ps</a></p>32 *33 * @author <a href="mailto:juanco@suigeneris.org">Juanco Anez</a>34 * @param <T> The type of the compared elements in the 'lines'.35 */36public class MyersDiff<T> implements DiffAlgorithm<T> {37  /** The equalizer. */38  private final Equalizer<T> equalizer;39  /**40   * Constructs an instance of the Myers differencing algorithm.41   */42  public MyersDiff() {43    /**	Default equalizer. */44    equalizer = new Equalizer<T>() {45      @Override46      public boolean equals(T original, T revised) {47        return original.equals(revised);48      }49    };50  }51  /**52   * Constructs an instance of the Myers differencing algorithm.53   * @param equalizer Must not be {@code null}.54   */55  public MyersDiff(final Equalizer<T> equalizer) {56    if (equalizer == null) {57      throw new IllegalArgumentException("equalizer must not be null");58    }59    this.equalizer = equalizer;60  }61  /**62   * {@inheritDoc}63   *64   * @return Returns an empty diff if get the error while procession the difference.65   */66  public Patch<T> diff(final T[] original, final T[] revised) {67    return diff(Arrays.asList(original), Arrays.asList(revised));68  }69  /**70   * {@inheritDoc}71   *72   * Return empty diff if get the error while procession the difference.73   */74  public Patch<T> diff(final List<T> original, final List<T> revised) {75    if (original == null) {76      throw new IllegalArgumentException("original list must not be null");77    }78    if (revised == null) {79      throw new IllegalArgumentException("revised list must not be null");80    }81    PathNode path;82    try {83      path = buildPath(original, revised);84      return buildRevision(path, original, revised);85    } catch (IllegalStateException e) {86      e.printStackTrace();87      return new Patch<>();88    }89  }90  /**91   * Computes the minimum diffpath that expresses de differences92   * between the original and revised sequences, according93   * to Gene Myers differencing algorithm.94   *95   * @param orig The original sequence.96   * @param rev The revised sequence.97   * @return A minimum {@link PathNode Path} accross the differences graph.98   * @throws DifferentiationFailedException if a diff path could not be found.99   */100  public PathNode buildPath(final List<T> orig, final List<T> rev) {101    if (orig == null)102      throw new IllegalArgumentException("original sequence is null");103    if (rev == null)104      throw new IllegalArgumentException("revised sequence is null");105    // these are local constants106    final int N = orig.size();107    final int M = rev.size();108    final int MAX = N + M + 1;109    final int size = 1 + 2 * MAX;110    final int middle = size / 2;111    final PathNode diagonal[] = new PathNode[size];112    diagonal[middle + 1] = new Snake(0, -1, null);113    for (int d = 0; d < MAX; d++) {114      for (int k = -d; k <= d; k += 2) {115        final int kmiddle = middle + k;116        final int kplus = kmiddle + 1;117        final int kminus = kmiddle - 1;118        PathNode prev;119        int i;120        if ((k == -d) || (k != d && diagonal[kminus].i < diagonal[kplus].i)) {121          i = diagonal[kplus].i;122          prev = diagonal[kplus];123        } else {124          i = diagonal[kminus].i + 1;125          prev = diagonal[kminus];126        }127        diagonal[kminus] = null; // no longer used128        int j = i - k;129        PathNode node = new DiffNode(i, j, prev);130        // orig and rev are zero-based131        // but the algorithm is one-based132        // that's why there's no +1 when indexing the sequences133        while (i < N && j < M && equals(orig.get(i), rev.get(j))) {134          i++;135          j++;136        }137        if (i > node.i) node = new Snake(i, j, node);138        diagonal[kmiddle] = node;139        if (i >= N && j >= M) return diagonal[kmiddle];140      }141      diagonal[middle + d - 1] = null;142    }143    // According to Myers, this cannot happen144    throw new IllegalStateException("could not find a diff path");145  }146  private boolean equals(T orig, T rev) {147    return equalizer.equals(orig, rev);148  }149  /**150   * Constructs a {@link Patch} from a difference path.151   *152   * @param path The path.153   * @param orig The original sequence.154   * @param rev The revised sequence.155   * @return A {@link Patch} script corresponding to the path.156   */157  public Patch<T> buildRevision(PathNode path, List<T> orig, List<T> rev) {158    if (path == null) throw new IllegalArgumentException("path is null");159    if (orig == null) throw new IllegalArgumentException("original sequence is null");160    if (rev == null) throw new IllegalArgumentException("revised sequence is null");161    Patch<T> patch = new Patch<>();162    if (path.isSnake())163      path = path.prev;164    while (path != null && path.prev != null && path.prev.j >= 0) {165      if (path.isSnake())166        throw new IllegalStateException("bad diffpath: found snake when looking for diff");167      int i = path.i;168      int j = path.j;169      path = path.prev;170      int ianchor = path.i;171      int janchor = path.j;172      Chunk<T> original = new Chunk<>(ianchor, copyOfRange(orig, ianchor, i));173      Chunk<T> revised = new Chunk<>(janchor, copyOfRange(rev, janchor, j));174      Delta<T> delta;175      if (original.size() == 0 && revised.size() != 0) {...

Source:AsserJDBDiffTest.java

2import static org.assertj.db.api.Assertions.assertThat;3import com.mysql.cj.jdbc.MysqlDataSource;4import org.assertj.core.util.diff.Delta;5import org.assertj.core.util.diff.DiffUtils;6import org.assertj.core.util.diff.Patch;7import org.assertj.db.type.*;8import org.junit.jupiter.api.AfterEach;9import org.junit.jupiter.api.BeforeEach;10import org.junit.jupiter.api.Test;11import javax.sql.DataSource;12import java.io.FileInputStream;13import java.io.IOException;14import java.util.ArrayList;15import java.util.List;16import java.util.Properties;17public class AsserJDBDiffTest {18    @BeforeEach19    public void setUp(){20    }21    @Test22    public void queryTest(){23        DiffUtils diffUtils = new DiffUtils();24        List<String> list1 = new ArrayList<>();25        List<String> list2 = new ArrayList<>();26        list1.add("Iftekhar");27        list1.add("Shehla");28        list1.add("Ameera");29        list2.add("Iftekhar");30        list2.add("Ameer");31        list2.add("Simrohn");32        list2.add("Ameera");33        Patch<String> patch =  DiffUtils.diff(list1,list2);34        List<Delta<String>> deltas =   patch.getDeltas();35        for(Delta<String> d : deltas) {36            System.out.println(d.getType());37            System.out.println(d.toString());38        }39    }40    @AfterEach41    public void tearDown(){42    }43}...

Patch

Using AI Code Generation

1import java.util.List;2import java.util.ArrayList;3import org.assertj.core.util.diff.Patch;4import org.assertj.core.util.diff.Delta;5import org.assertj.core.util.diff.InsertDelta;6import org.assertj.core.util.diff.ChangeDelta;7import org.assertj.core.util.diff.DeleteDelta;8public class DiffTest {9    public static void main(String[] args) {10        List<String> original = new ArrayList<String>();11        original.add("a");12        original.add("b");13        original.add("c");14        original.add("d");15        List<String> revised = new ArrayList<String>();16        revised.add("a");17        revised.add("c");18        revised.add("d");19        revised.add("e");20        Patch<String> patch = DiffUtils.diff(original, revised);21        for (Delta<String> delta : patch.getDeltas()) {22            System.out.println(delta);23            System.out.println(delta.getOriginal());24            System.out.println(delta.getRevised());25        }26    }27}

Patch

Using AI Code Generation

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

Patch

Using AI Code Generation

1import org.assertj.core.util.diff.*;2import java.util.*;3import java.io.*;4public class 1 {5    public static void main(String[] args) throws IOException {6        List<String> original = new ArrayList<String>();7        List<String> revised = new ArrayList<String>();8        BufferedReader in = new BufferedReader(new FileReader("original.txt"));9        String str;10        while ((str = in.readLine()) != null) {11            original.add(str);12        }13        in.close();14        in = new BufferedReader(new FileReader("revised.txt"));15        while ((str = in.readLine()) != null) {16            revised.add(str);17        }18        in.close();19        Patch p = DiffUtils.diff(original, revised);20        List<String> patchList = DiffUtils.generateUnifiedDiff("original.txt", "revised.txt", original, p, 3);21        for (String string : patchList) {22            System.out.println(string);23        }24    }25}26In this example, we have created a patch file by comparing two text files. The original.txt file contains the original text, and the revised.txt file contains the revised text. The DiffUtils class is used to compare the two files and generate a patch file. The generateUnifiedDiff() method is used to generate a patch file. The first parameter is the name of

Patch

Using AI Code Generation

1package com.mycompany.app;2import static org.assertj.core.api.Assertions.assertThat;3import java.util.Arrays;4import java.util.List;5import org.assertj.core.util.diff.Patch;6public class App {7    public static void main(String[] args) {8        List<String> original = Arrays.asList("A", "B", "C", "D", "E", "F", "G", "H", "I", "J");9        List<String> revised = Arrays.asList("A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K");10        Patch<String> patch = DiffUtils.diff(original, revised);11        assertThat(patch.getDeltas()).hasSize(1);12        assertThat(patch.getDeltas().get(0).getOriginal()).hasSize(0);13        assertThat(patch.getDeltas().get(0).getRevised()).hasSize(1);14        assertThat(patch.getDeltas().get(0).getOriginal().getPosition()).isEqualTo(9);15        assertThat(patch.getDeltas().get(0).getRevised().getPosition()).isEqualTo(9);16    }17}

Patch

Using AI Code Generation

1package diff;2import java.io.File;3import java.io.IOException;4import java.util.ArrayList;5import java.util.List;6import org.assertj.core.util.diff.Diff;7import org.assertj.core.util.diff.Patch;8public class DiffPatch {9    public static void main(String[] args) throws IOException {10        List<String> original = new ArrayList<String>();11        original.add("1");12        original.add("2");13        original.add("3");14        List<String> revised = new ArrayList<String>();15        revised.add("1");16        revised.add("3");17        revised.add("4");18        Patch<String> patch = DiffUtils.diff(original, revised);19        for (Delta<String> delta : patch.getDeltas()) {20            System.out.println(delta);21        }22        List<String> patched = DiffUtils.patch(original, patch);23        System.out.println(patched);24    }25}

Patch

Using AI Code Generation

1import org.assertj.core.util.diff.*;2import java.util.*;3import java.io.*;4import java.nio.file.*;5import java.nio.charset.*;6public class 1 {7    public static void main(String[] args) {8        try {9            String oldFile = "oldFile.txt";10            String newFile = "newFile.txt";11            List<String> oldFileContent = Files.readAllLines(Paths.get(oldFile), Charset.defaultCharset());12            List<String> newFileContent = Files.readAllLines(Paths.get(newFile), Charset.defaultCharset());13            Patch patch = DiffUtils.diff(oldFileContent, newFileContent);14            List<String> unifiedDiff = DiffUtils.generateUnifiedDiff(oldFile, newFile, oldFileContent, patch, 2);15            System.out.println(unifiedDiff);16            List<String> patchList = DiffUtils.generateUnifiedDiff(oldFile, newFile, oldFileContent, patch, 2);17            System.out.println(patchList);18            Files.write(Paths.get("patch.txt"), patchList, Charset.defaultCharset());19        } catch (Exception e) {20            e.printStackTrace();21        }22    }23}24import org.apache.commons.io.FileUtils;25import org.apache.commons.io.filefilter.TrueFileFilter;26import org.apache.commons.io.filefilter.IOFileFilter;27import org.apache.commons.io.filefilter.PrefixFileFilter;28import org.apache.commons.io.filefilter.SuffixFileFilter;29import org.apache.commons.io.filefilter.WildcardFileFilter;30import org.apache.commons.io.filefilter.RegexFileFilter;31import org.apache.commons.io.filefilter.NameFileFilter;32import org.apache.commons.io.filefilter.DirectoryFileFilter;33import org.apache.commons.io.filefilter.AndFileFilter;34import org.apache.commons.io.filefilter.OrFileFilter;35import org.apache.commons.io.filefilter.NotFileFilter;36import org.apache.commons.io.filefilter.AgeFileFilter;37import org.apache.commons.io.filefilter.SizeFileFilter;38import org.apache.commons.io.filefilter.HiddenFileFilter;39import org.apache.commons.io.filefilter.CanReadFileFilter;40import org.apache.commons.io.filefilter.CanWriteFileFilter;41import org.apache.commons.io.filefilter.CanExecuteFileFilter;42import org.apache.commons.io.filefilter.EmptyFileFilter;43import org.apache.commons.io.filefilter.FileFileFilter;44import org.apache.commons.io.filefilter.SuffixFileFilter;45import org.apache.commons.io.filefilter.TrueFileFilter;46import org.apache.commons.io

Patch

Using AI Code Generation

1import org.assertj.core.util.diff.*;2import java.util.Arrays;3import java.util.List;4import java.util.ArrayList;5import java.util.LinkedList;6import java.util.Scanner;7public class DiffTest {8    public static void main(String[] args) {9        Scanner sc = new Scanner(System.in);10        System.out.println("Enter the path of first file:");11        String path1 = sc.nextLine();12        System.out.println("Enter the path of second file:");13        String path2 = sc.nextLine();14        List<String> original = new ArrayList<>();15        List<String> revised = new ArrayList<>();16        try {17            original = Files.readAllLines(Paths.get(path1));18            revised = Files.readAllLines(Paths.get(path2));19        } catch (Exception e) {20            System.out.println("Exception occured while reading the files");21        }22        Patch<String> patch = DiffUtils.diff(original, revised);23        List<String> patchList = new ArrayList<>();24        for (Delta<String> delta : patch.getDeltas()) {25            patchList.add(delta.toString());26        }27        System.out.println(patchList);28    }29}

Patch

Using AI Code Generation

1import org.assertj.core.util.diff.*;2import java.util.*;3public class DiffTest {4    public static void main(String[] args) {5        String[] original = { "A", "B", "C", "C", "D", "E", "F" };6        String[] revised = { "A", "C", "C", "D", "E", "G" };7        Patch patch = DiffUtils.diff(Arrays.asList(original), Arrays.asList(revised));8        for (Delta delta : patch.getDeltas()) {9            System.out.println(delta);10        }11    }12}13import org.assertj.core.util.diff.*;14import java.util.*;15public class DiffTest {16    public static void main(String[] args) {17        String[] original = { "A", "B", "C", "C", "D", "E", "F" };18        String[] revised = { "A", "C", "C", "D", "E", "G" };19        Patch patch = DiffUtils.diff(Arrays.asList(original), Arrays.asList(revised));20        for (Delta delta : patch.getDeltas()) {21            System.out.println(delta);22        }23        System.out.println("************");24        List<String> originalList = Arrays.asList(original);25        List<String> revisedList = Arrays.asList(revised);26        for (Delta delta : patch.getDeltas()) {27            System.out.println(delta.getOriginal().getLines());28            System.out.println(delta.getRevised().getLines());29        }30    }31}32import org.assertj.core.util.diff.*;33import java.util.*;34public class DiffTest {35    public static void main(String[] args) {36        String[] original = { "A", "B", "C", "C", "D", "E", "F" };37        String[] revised = { "A", "C", "C", "D", "E", "G" };38        Patch patch = DiffUtils.diff(Arrays.asList(original), Arrays.asList(revised));39        for (Delta delta : patch.getDeltas()) {40            System.out.println(delta);41        }42        System.out.println("************");43        List<String> originalList = Arrays.asList(original);44        List<String> revisedList = Arrays.asList(revised);45        for (Delta delta : patch.getDeltas()) {46            System.out.println(delta.getOriginal().getLines());47            System.out.println(delta.getRevised().getLines());48        }49    }50}

Patch

Using AI Code Generation

1package diff;2import java.io.File;3import java.io.IOException;4import java.util.ArrayList;5import java.util.List;6import org.assertj.core.util.diff.Diff;7import org.assertj.core.util.diff.Patch;8public class DiffPatch {9    public static void main(String[] args) throws IOException {10        List<String> original = new ArrayList<String>();11        original.add("1");12        original.add("2");13        original.add("3");14        List<String> revised = new ArrayList<String>();15        revised.add("1");16        revised.add("3");17        revised.add("4");18        Patch<String> patch = DiffUtils.diff(original, revised);19        for (Delta<String> delta : patch.getDeltas()) {20            System.out.println(delta);21        }22        List<String> patched = DiffUtils.patch(original, patch);23        System.out.println(patched);24    }25}

Patch

Using AI Code Generation

1import org.assertj.core.util.diff.*;2import java.util.*;3public class DiffTest {4    public static void main(String[] args) {5        String[] original = { "A", "B", "C", "C", "D", "E", "F" };6        String[] revised = { "A", "C", "C", "D", "E", "G" };7        Patch patch = DiffUtils.diff(Arrays.asList(original), Arrays.asList(revised));8        for (Delta delta : patch.getDeltas()) {9            System.out.println(delta);10        }11    }12}13import org.assertj.core.util.diff.*;14import java.util.*;15public class DiffTest {16    public static void main(String[] args) {17        String[] original = { "A", "B", "C", "C", "D", "E", "F" };18        String[] revised = { "A", "C", "C", "D", "E", "G" };19        Patch patch = DiffUtils.diff(Arrays.asList(original), Arrays.asList(revised));20        for (Delta delta : patch.getDeltas()) {21            System.out.println(delta);22        }23        System.out.println("************");24        List<String> originalList = Arrays.asList(original);25        List<String> revisedList = Arrays.asList(revised);26        for (Delta delta : patch.getDeltas()) {27            System.out.println(delta.getOriginal().getLines());28            System.out.println(delta.getRevised().getLines());29        }30    }31}

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.