package beginner;

import com.sandwich.koan.Koan;

import static com.sandwich.koan.constant.KoanConstants.__;

import static com.sandwich.util.Assert.assertEquals;

public class AboutEnums {

enum Colors {

Red, Blue, Green, Yellow // what happens if you add a ; here?

// What happens if you type Red() instead?

}

@Koan

public void basicEnums() {

Colors blue = Colors.Blue;

assertEquals(blue == Colors.Blue, __);

assertEquals(blue == Colors.Red, __);

assertEquals(blue instanceof Colors, __);

}

@Koan

public void basicEnumsAccess() {

Colors[] colorArray = Colors.values();

assertEquals(colorArray[2], __);

}

enum SkatSuits {

Clubs(12), Spades(11), Hearts(10), Diamonds(9);

SkatSuits(int v) { value = v; }

private int value;

}

@Koan

public void enumsWithAttributes() {

// value is private but we still can access it. Why?

// Try moving the enum outside the AboutEnum class... What do you expect?

// What happens?

assertEquals(SkatSuits.Clubs.value > SkatSuits.Spades.value, __);

}

enum OpticalMedia {

CD(650), DVD(4300), BluRay(50000);

OpticalMedia(int c) {

capacityInMegaBytes = c;

}

int capacityInMegaBytes;

int getCoolnessFactor() {

return (capacityInMegaBytes - 1000) * 10;

}

}

@Koan

public void enumsWithMethods() {

assertEquals(OpticalMedia.CD.getCoolnessFactor(), __);

assertEquals(OpticalMedia.BluRay.getCoolnessFactor(), __);

}

}