Upload files to 'assignment5/Question2'

assignment5/Question2/StartGrading.java

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+//Q2
+public class StartGrading {
+	public static void testVehicle() {
+//The Vehicle class is abstract. We cannot create objects from this class. Therefore, we cannot test anything
+	}
+
+
+	public static void testCar() {
+		// test case for constructors
+		try {
+// exception
+			Car c1 = new Car(70, 80);
+		} catch (BadSpeedSetting e) {
+			System.out.println(e.getMessage().equals("Speed cannot be greater than speed limit!"));
+		}
+		try {
+// exception
+			Car c2 = new Car(70, -10);
+		} catch (BadSpeedSetting e) {
+			System.out.println(e.getMessage().equals("Speed cannot be negative!"));
+		}
+// test case for accelerate, canFly and getSpeed methods
+		try {
+			Car c3 = new Car(100, 80);
+// test the canFly method
+			System.out.println(c3.canFly() == false);
+			c3.accelerate(10);
+			System.out.println(c3.getSpeed() == 90);
+// test the accelerate with positive amount
+			c3.accelerate(-20);
+			System.out.println(c3.getSpeed() == 70);
+// test the accelerate with negative amount 
+			c3.accelerate(35);
+// exception 
+		} catch (BadSpeedSetting e) {
+			System.out.println("BUG! THIS MUST NEVER HAPPEN!");
+		} catch (ExceedSpeedLimit e) {
+			System.out
+					.println(e.getMessage().equals("Current speed is 70. Accelerate 35 will exceed the speed limit!"));
+		} catch (NotEnoughSpeed e) {
+			System.out.println("BUG! THIS MUST NEVER HAPPEN!");
+		}
+		try {
+			Car c4 = new Car(100, 80);
+// exception
+			c4.accelerate(-90);
+		} catch (BadSpeedSetting e) {
+			System.out.println("BUG! THIS MUST NEVER HAPPEN!");
+		} catch (ExceedSpeedLimit e) {
+			System.out.println("BUG! THIS MUST NEVER HAPPEN!");
+		} catch (NotEnoughSpeed e) {
+			System.out.println(e.getMessage().equals("Current speed is " + 80 + ", not enough speed to decelerate!"));
+		}
+	}
+
+	public static void main(String[] args) {
+		Vehicle.testVehicle();
+		Car.testCar();
+	}
+}