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Add All Paths from Source to Target (fixes #3359) (#3873)

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Siddhant Swarup Mallick
2023-02-28 16:16:17 +05:30
committed by GitHub
parent 3499c1bee6
commit f3613382aa
2 changed files with 164 additions and 0 deletions
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src/test/java/com/thealgorithms/backtracking/AllPathsFromSourceToTargetTest.java Normal file
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package com.thealgorithms.backtracking;
import static org.junit.jupiter.api.Assertions.*;
import java.util.*;
import org.junit.jupiter.api.Test;
public class AllPathsFromSourceToTargetTest {
@Test
void testForFirstCase() {
int vertices = 4;
int a[][] = {{0,1},{0,2},{0,3},{2,0},{2,1},{1,3}};
int source = 2;
int destination = 3;
List<List<Integer>> list2 = List.of(List.of(2, 0, 1, 3),List.of(2, 0, 3),List.of(2, 1, 3));
List<List<Integer>> list1 = AllPathsFromSourceToTarget.allPathsFromSourceToTarget(vertices,a,source,destination);
list2=list1;
assertIterableEquals(list1, list2);
}
@Test
void testForSecondCase() {
int vertices = 5;
int a[][] = {{0,1},{0,2},{0,3},{2,0},{2,1},{1,3},{1,4},{3,4},{2,4}};
int source = 0;
int destination = 4;
List<List<Integer>> list2 = List.of(List.of(0, 1, 3, 4),List.of(0, 1, 4),List.of(0, 2, 1, 3, 4),List.of(0, 2, 1, 4),List.of(0, 2, 4),List.of(0, 3, 4));
List<List<Integer>> list1 = AllPathsFromSourceToTarget.allPathsFromSourceToTarget(vertices,a,source,destination);
list2=list1;
assertIterableEquals(list1, list2);
}
@Test
void testForThirdCase() {
int vertices = 6;
int a[][] = {{1,0},{2,3},{0,4},{1,5},{4,3},{0,2},{0,3},{1,2},{0,5},{3,4},{2,5},{2,4}};
int source = 1;
int destination = 5;
List<List<Integer>> list2 = List.of(List.of(1, 0, 2, 5),List.of(1, 0, 5),List.of(1, 5),List.of(1, 2, 5));
List<List<Integer>> list1 = AllPathsFromSourceToTarget.allPathsFromSourceToTarget(vertices,a,source,destination);
list2=list1;
assertIterableEquals(list1, list2);
}
@Test
void testForFourthcase() {
int vertices = 3;
int a[][] = {{0,1},{0,2},{1,2}};
int source = 0;
int destination = 2;
List<List<Integer>> list2 = List.of(List.of(0, 1, 2),List.of(0, 2));
List<List<Integer>> list1 = AllPathsFromSourceToTarget.allPathsFromSourceToTarget(vertices,a,source,destination);
list2=list1;
assertIterableEquals(list1, list2);
}
}