84 lines
2.7 KiB
Java
84 lines
2.7 KiB
Java
package cat.hack3.codingtests.marsrover;
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import org.testng.annotations.BeforeMethod;
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import org.testng.annotations.Test;
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import java.util.function.IntConsumer;
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import java.util.stream.IntStream;
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import static cat.hack3.codingtests.marsrover.Direction.*;
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import static org.testng.Assert.assertEquals;
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public class MarsRoverTest {
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private MarsRover rover;
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@BeforeMethod
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public void setUp() {
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int mapWidth = 10;
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int mapHeight = 10;
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int latitudeStartingPoint = 2;
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int longitudeStartingPoint = 3;
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var startingCoordinates = Coordinates.of(latitudeStartingPoint, longitudeStartingPoint);
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var marsMap = new MarsMap(mapWidth, mapHeight, startingCoordinates);
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rover = new MarsRover(marsMap, startingCoordinates, SOUTH);
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}
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@Test
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public void stepForward() {
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Direction originalDirection = rover.getCurrentDirection();
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Coordinates oneStepForward = rover.moveForward();
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assertEquals(oneStepForward, Coordinates.of(3, 3));
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assertEquals(rover.getCurrentDirection(), originalDirection);
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}
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@Test
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public void loopTheWorldInLatitudeMovingForward() {
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Coordinates originalCoordinates = rover.getCurrentCoordinates();
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Direction originalDirection = rover.getCurrentDirection();
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repeatAction(10, i -> rover.moveForward());
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assertEquals(rover.getCurrentCoordinates(), originalCoordinates);
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assertEquals(rover.getCurrentDirection(), originalDirection);
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}
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@Test
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public void stepBackwards() {
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Direction originalDirection = rover.getCurrentDirection();
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Coordinates currentPosition = rover.moveBackwards();
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assertEquals(currentPosition, Coordinates.of(1, 3));
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assertEquals(rover.getCurrentDirection(), originalDirection);
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}
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@Test
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public void loopTheWorldInLatitudeMovingBackwards() {
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Coordinates originalCoordinates = rover.getCurrentCoordinates();
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Direction originalDirection = rover.getCurrentDirection();
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repeatAction(10, i -> rover.moveBackwards());
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assertEquals(rover.getCurrentCoordinates(), originalCoordinates);
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assertEquals(rover.getCurrentDirection(), originalDirection);
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}
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@Test
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public void turnLef() {
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Direction currentDirection = rover.turnLeft();
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assertEquals(currentDirection, EAST);
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assertEquals(rover.turnLeft(), NORTH);
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assertEquals(rover.turnLeft(), WEST);
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repeatAction(2, i -> rover.turnLeft());
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assertEquals(currentDirection, EAST);
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}
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private void repeatAction(int times, IntConsumer actionToRepeat) {
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IntStream.rangeClosed(1, times)
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.forEach(actionToRepeat);
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}
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}
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