src/main/java/ch/zhaw/pm2/racetrack/PositionVectorNotValid.java

@@ -0,0 +1,9 @@
+package ch.zhaw.pm2.racetrack;
+
+public class PositionVectorNotValid extends Throwable {
+    public PositionVectorNotValid(String message) {
+        super(message);
+    }
+
+    public PositionVectorNotValid() {}
+}

src/main/java/ch/zhaw/pm2/racetrack/Track.java

@@ -59,11 +59,9 @@ import java.util.Scanner;
 public class Track implements TrackSpecification {
 
     public static final char CRASH_INDICATOR = 'X';
-
-    // TODO: Add necessary variables
     private List<String> track;
     private List<Car> cars;
-    private List<PositionVector> finishLine;
+    private final List<PositionVector> finishLine;
 
     /**
      * Initialize a Track from the given track file.
@@ -72,8 +70,7 @@ public class Track implements TrackSpecification {
      * @throws FileNotFoundException       if the given track file could not be found
      * @throws InvalidTrackFormatException if the track file contains invalid data (no tracklines, ...)
      */
-    public Track(File trackFile) throws FileNotFoundException, InvalidTrackFormatException {
+    public Track(File trackFile) throws FileNotFoundException, InvalidTrackFormatException, PositionVectorNotValid {
-
         track = new ArrayList<>();
         cars = new ArrayList<>();
         finishLine = new ArrayList<>();
@@ -161,9 +158,18 @@ public class Track implements TrackSpecification {
     private void drawCharOnTrackIndicator(PositionVector positionVector, char symbol) {
         String line = track.get(positionVector.getY());
         line = line.substring(0, positionVector.getX()) + symbol + line.substring(positionVector.getX() + 1);
+        track.remove(positionVector.getY());
         track.add(positionVector.getY(), line);
     }
 
+    private void isPositionVectorOnTrack(PositionVector positionVector) throws PositionVectorNotValid {
+        try{
+            track.get(positionVector.getY()).charAt(positionVector.getX());
+        }catch (IndexOutOfBoundsException e) {
+            throw new PositionVectorNotValid();
+        }
+    }
+
     /**
      * @return all Cars
      */
@@ -188,6 +194,7 @@ public class Track implements TrackSpecification {
     /**
      * This Method will update the Car on the track
      * and will make the Car move to the next position
+     *
      * @param carIndex representing the current Car
      */
     public void moveCar(int carIndex) {
@@ -198,7 +205,8 @@ public class Track implements TrackSpecification {
 
     /**
      * This class does change the Position of the car only in the track.
-     * @param carIndex
+     *
+     * @param carIndex of the current car
      */
     private void makeCarMoveInTrack(int carIndex) {
         PositionVector positionVector = findChar(getCarId(carIndex));
@@ -211,25 +219,29 @@ public class Track implements TrackSpecification {
 
     /**
      * This Method will check if the Car could crash at the specific position
+     *
      * @param positionVector the position to check if the car could crash
      * @return true if car would crash. Else false.
      */
-    public boolean willCrashAtPosition(PositionVector positionVector) {
+    public boolean willCrashAtPosition(int carIndex, PositionVector positionVector) throws PositionVectorNotValid {
+        isPositionVectorOnTrack(positionVector);
         char charAtPosition = track.get(positionVector.getY()).charAt(positionVector.getX());
-        return charAtPosition != ConfigSpecification.SpaceType.TRACK.value;
+        if (getCarId(carIndex) == charAtPosition) return false;
+        return (charAtPosition == ConfigSpecification.SpaceType.WALL.value);
     }
 
     /**
      * This Method will make the Car Crash. In Track and in the Car Object
+     *
      * @param carIndex       representing current Car
      * @param positionVector where the Crash did happen
      */
-    public void carDoesCrash(int carIndex,PositionVector positionVector) {
+    public void carDoesCrash(int carIndex, PositionVector positionVector) throws PositionVectorNotValid{
+        isPositionVectorOnTrack(positionVector);
         Car car = cars.get(carIndex);
         car.crash();
-        makeCarMoveInTrack(carIndex);
+        car.setPosition(positionVector);
-        drawCharOnTrackIndicator(new PositionVector(positionVector.getX()+1,positionVector.getY()),CRASH_INDICATOR);
+        drawCharOnTrackIndicator(new PositionVector(positionVector.getX(), positionVector.getY()), CRASH_INDICATOR);
-
     }
 
     /**
@@ -241,9 +253,8 @@ public class Track implements TrackSpecification {
      */
     @Override
     public Config.SpaceType getSpaceType(PositionVector position) {
-
+        //isPositionVectorOnTrack(position); Should be used but we are not allowed to change method head. We don't use function anyway
         char charAtPosition = track.get(position.getY()).charAt(position.getX());
-
         ConfigSpecification.SpaceType[] spaceTypes = ConfigSpecification.SpaceType.values();
         for (ConfigSpecification.SpaceType spaceType : spaceTypes) {
             if (spaceType.getValue() == charAtPosition) {
@@ -321,14 +332,13 @@ public class Track implements TrackSpecification {
     @Override
     public char getCharAtPosition(int y, int x, Config.SpaceType currentSpace) {
         char charAtPos = track.get(y).charAt(x);
+        PositionVector positionVector = new PositionVector(x, y);
         for (Car car : cars) {
             if (charAtPos == car.getID()) {
-                if(car.isCrashed()) {
-                    return CRASH_INDICATOR;
-                }
                 return charAtPos;
             }
         }
+        if (positionVector.equals(findChar(CRASH_INDICATOR))) return CRASH_INDICATOR;
         return currentSpace.getValue();
     }
 
@@ -339,10 +349,8 @@ public class Track implements TrackSpecification {
      */
     @Override
     public String toString() {
-        String str = "";
+        StringBuilder str = new StringBuilder();
-        for (String line : track) {
+        for (String line : track) str.append(line).append("\n");
-            str += line + "\n";
+        return str.toString();
-        }
-        return str;
     }
 }

src/test/InvalidTracks/sameCar.txt

@@ -0,0 +1,26 @@
+###############################################################
+#################                                 #############
+###############                                     ###########
+###############                                       #########
+###############         ##################            #########
+###############        ####################           #########
+##############        #####################           #########
+############        ######################           ##########
+#########         ######################           ############
+#########       ######################           ##############
+#########      #####################           ################
+#########        #################           ##################
+#########         ################           ##################
+##########         ##################           ###############
+###########         ####################          #############
+###########         #######################          ##########
+##########         ##########################         #########
+#########         ############################         ########
+########         #############################         ########
+#######         ##############################         ########
+######         #############################           ########
+######         ############################           #########
+######                > a                           ###########
+######                > a                        ##############
+########              > b                     #################
+###############################################################

src/test/java/ch/zhaw/pm2/racetrack/TrackTest.java

@@ -1,10 +1,7 @@
 package ch.zhaw.pm2.racetrack;
 
 import ch.zhaw.pm2.racetrack.given.ConfigSpecification;
-import org.junit.Before;
+import org.junit.jupiter.api.*;
-import org.junit.jupiter.api.Assertions;
-import org.junit.jupiter.api.BeforeEach;
-import org.junit.jupiter.api.Test;
 
 import java.io.File;
 import java.io.FileNotFoundException;
@@ -15,48 +12,43 @@ import java.util.List;
 public class TrackTest {
     Track trackObj;
 
+    @Nested
+    @DisplayName("Positiv Test Cases")
+    class positivClass {
+
         @BeforeEach
         void setup() {
-        File file = new File("C:\\Studium\\Semester2\\PM2\\Projekt1\\racetrack\\tracks\\challenge.txt");
+            File file = new File(".\\tracks\\challenge.txt");
             try {
                 trackObj = new Track(file);
 
-        } catch (Exception e) {
+            } catch (Exception | PositionVectorNotValid e) {
                 System.err.println("Error in Test compareTrack" + e.getMessage());
             }
         }
 
         @Test
-    void canReadFile() {
+        @DisplayName("Create correct amount of Car instance")
-        File file = new File("C:\\Studium\\Semester2\\PM2\\Projekt1\\racetrack\\tracks\\challenge.txt");
+        void checkCars() {
-        Assertions.assertThrows(FileNotFoundException.class,() -> new Track(file));
+            Assertions.assertEquals(2, trackObj.getCarCount());
-    }
-
-    /**
-     * Dirty test...
-     */
-    @Test
-    void printOutTrack() {
-        System.out.println(trackObj);
         }
 
         @Test
+        @DisplayName("Create Car instance with correct Symbols / Id")
+        void checkCarId() {
+            Assertions.assertEquals('a', trackObj.getCarId(0));
+            Assertions.assertEquals('b', trackObj.getCarId(1));
+        }
+
+
+        @Test
+        @DisplayName("Check getSpaceTyp")
         void getSpaceTyp() {
             Assertions.assertEquals(ConfigSpecification.SpaceType.FINISH_RIGHT, trackObj.getSpaceType(new PositionVector(22, 24)));
         }
 
-    //TODO:
-    @Test
-    void addCarAtInit() {
-        try {
-            trackObj.addCar();
-        } catch (InvalidTrackFormatException e) {
-            e.printStackTrace();
-        }
-
-    }
-
         @Test
+        @DisplayName("Find FinishLine")
         void findFinish() {
             List<PositionVector> expected = new ArrayList<>();
             expected.add(new PositionVector(22, 22));
@@ -66,13 +58,120 @@ public class TrackTest {
         }
 
         @Test
-    void makeTrackObj() {
+        @DisplayName("Converts Trackfile correctly to List<String>")
+        void checkTrack() {
+            Track trackObj;
             try {
-            Track t1 = new Track(new File("C:\\Studium\\Semester2\\PM2\\Projekt1\\racetrack\\tracks\\challenge.txt"));
+                trackObj = new Track(new File(".\\tracks\\oval-anticlock-right.txt"));
-        } catch (FileNotFoundException e) {
+                List<String> track = new ArrayList<>();
-            e.printStackTrace();
+                track.add("##################################################");
-        } catch (InvalidTrackFormatException e) {
+                track.add("##################################################");
+                track.add("##############                       #############");
+                track.add("##########                              ##########");
+                track.add("#######                                    #######");
+                track.add("######          #################           ######");
+                track.add("#####          ###################           #####");
+                track.add("#####          ###################           #####");
+                track.add("######          #################           ######");
+                track.add("#######             > a                    #######");
+                track.add("##########          >                   ##########");
+                track.add("##############      > b             ##############");
+                track.add("##################################################");
+                track.add("##################################################");
+                Assertions.assertLinesMatch(track, trackObj.getTrack());
+            } catch (FileNotFoundException | InvalidTrackFormatException | PositionVectorNotValid e) {
                 e.printStackTrace();
             }
         }
+
+        @Test
+        @DisplayName("Make Car move down on track")
+        void makeCarMoveDown() {
+            PositionVector beforeMove = trackObj.getCarPos(0);
+            trackObj.getCar(0).accelerate(PositionVector.Direction.DOWN);
+            trackObj.moveCar(0);
+            PositionVector afterMove = trackObj.getCarPos(0);
+            Assertions.assertEquals(beforeMove.getY() + 1, afterMove.getY());
+            Assertions.assertEquals(beforeMove.getX(), afterMove.getX());
+        }
+
+        @Test
+        @DisplayName("Make Car move with (0,0) acceleration on track")
+        void makeCarStay() {
+            PositionVector beforeMove = trackObj.getCarPos(0);
+            trackObj.moveCar(0);
+            PositionVector afterMove = trackObj.getCarPos(0);
+            Assertions.assertEquals(beforeMove.getY(), afterMove.getY());
+            Assertions.assertEquals(beforeMove.getX(), afterMove.getX());
+        }
+
+        @Test
+        @DisplayName("Will Car Crash")
+        void willCarCrash() {
+            try {
+                //Car will Crash
+                Assertions.assertTrue(trackObj.willCrashAtPosition(0, new PositionVector(25, 21)));
+                //Car will not Crash and is on track
+                Assertions.assertFalse(trackObj.willCrashAtPosition(0, new PositionVector(7, 22)));
+                //Car will not Crash and is on finishLine
+                Assertions.assertFalse(trackObj.willCrashAtPosition(0, trackObj.getFinishLine().get(0)));
+            } catch (PositionVectorNotValid positionVectorNotValid) {
+                positionVectorNotValid.printStackTrace();
+                Assertions.fail("Test should not throw error");
+            }
+        }
+
+        @Test
+        @DisplayName("Make Car Crash")
+        void makeCarCrash() {
+            try {
+                trackObj.carDoesCrash(0, new PositionVector(6, 22));
+            } catch (PositionVectorNotValid positionVectorNotValid) {
+                positionVectorNotValid.printStackTrace();
+                Assertions.fail("Test should not throw exception");
+            }
+            Assertions.assertEquals(Track.CRASH_INDICATOR, trackObj.getTrack().get(22).charAt(6));
+            Assertions.assertTrue(trackObj.getCar(0).isCrashed());
+        }
+    }
+
+    @Nested
+    @DisplayName("Negative TestCase")
+    class negativeClass {
+        File file;
+
+        @BeforeEach
+        void setup() {
+            file = new File(".\\tracks\\challenge.txt");
+            try {
+                trackObj = new Track(file);
+
+            } catch (Exception | PositionVectorNotValid e) {
+                System.err.println("Error in Test compareTrack" + e.getMessage());
+            }
+        }
+
+        @Test
+        @DisplayName("Throw error if File not found")
+        void canReadFile() {
+            file = new File(".\\tracks\\NotExisting.txt");
+            Assertions.assertThrows(FileNotFoundException.class, () -> new Track(file));
+        }
+
+        @Test
+        @DisplayName("Throw error if File is invalid")
+        void invalidTrackFile() {
+            File testfile = new File(".\\src\\test\\InvalidTracks\\sameCar.txt");
+            Assertions.assertThrows(InvalidTrackFormatException.class, () -> new Track(testfile));
+        }
+
+        @Test
+        @DisplayName("Invalid Position Vector used")
+        void invalidPositionVector() {
+            Assertions.assertThrows(PositionVectorNotValid.class, () -> trackObj.willCrashAtPosition(0, new PositionVector(100, 200)));
+            Assertions.assertThrows(PositionVectorNotValid.class, () -> trackObj.carDoesCrash(1,new PositionVector(200,100)));
+        }
+
+    }
+
 }