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Add tests, remove print & main methods in BoundaryFill.java (#5640)

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Hardik Pawar
2024-10-10 01:26:51 +05:30
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parent 48c65e4c5e
commit c0f35242a1
3 changed files with 73 additions and 44 deletions
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src/test/java/com/thealgorithms/dynamicprogramming/BoundaryFillTest.java Normal file
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package com.thealgorithms.dynamicprogramming;
import static org.junit.jupiter.api.Assertions.assertArrayEquals;
import static org.junit.jupiter.api.Assertions.assertEquals;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
public class BoundaryFillTest {
private int[][] image;
@BeforeEach
void setUp() {
image = new int[][] {{0, 0, 0, 0, 0, 0, 0}, {0, 3, 3, 3, 3, 0, 0}, {0, 3, 0, 0, 3, 0, 0}, {0, 3, 0, 0, 3, 3, 3}, {0, 3, 3, 3, 0, 0, 3}, {0, 0, 0, 3, 0, 0, 3}, {0, 0, 0, 3, 3, 3, 3}};
}
@Test
void testGetPixel() {
assertEquals(3, BoundaryFill.getPixel(image, 1, 1));
assertEquals(0, BoundaryFill.getPixel(image, 2, 2));
assertEquals(3, BoundaryFill.getPixel(image, 4, 3));
}
@Test
void testPutPixel() {
BoundaryFill.putPixel(image, 2, 2, 5);
assertEquals(5, BoundaryFill.getPixel(image, 2, 2));
BoundaryFill.putPixel(image, 0, 0, 7);
assertEquals(7, BoundaryFill.getPixel(image, 0, 0));
}
@Test
void testBoundaryFill() {
BoundaryFill.boundaryFill(image, 2, 2, 5, 3);
int[][] expectedImage = {{0, 0, 0, 0, 0, 0, 0}, {0, 3, 3, 3, 3, 0, 0}, {0, 3, 5, 5, 3, 0, 0}, {0, 3, 5, 5, 3, 3, 3}, {0, 3, 3, 3, 5, 5, 3}, {0, 0, 0, 3, 5, 5, 3}, {0, 0, 0, 3, 3, 3, 3}};
for (int i = 0; i < image.length; i++) {
assertArrayEquals(expectedImage[i], image[i]);
}
}
@Test
void testBoundaryFillEdgeCase() {
BoundaryFill.boundaryFill(image, 1, 1, 3, 3);
int[][] expectedImage = {{0, 0, 0, 0, 0, 0, 0}, {0, 3, 3, 3, 3, 0, 0}, {0, 3, 0, 0, 3, 0, 0}, {0, 3, 0, 0, 3, 3, 3}, {0, 3, 3, 3, 0, 0, 3}, {0, 0, 0, 3, 0, 0, 3}, {0, 0, 0, 3, 3, 3, 3}};
for (int i = 0; i < image.length; i++) {
assertArrayEquals(expectedImage[i], image[i]);
}
}
@Test
void testBoundaryFillInvalidCoordinates() {
BoundaryFill.boundaryFill(image, -1, -1, 5, 3);
int[][] expectedImage = {{0, 0, 0, 0, 0, 0, 0}, {0, 3, 3, 3, 3, 0, 0}, {0, 3, 0, 0, 3, 0, 0}, {0, 3, 0, 0, 3, 3, 3}, {0, 3, 3, 3, 0, 0, 3}, {0, 0, 0, 3, 0, 0, 3}, {0, 0, 0, 3, 3, 3, 3}};
for (int i = 0; i < image.length; i++) {
assertArrayEquals(expectedImage[i], image[i]);
}
}
}