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// Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
// Test switch statement using labels.
import "package:expect/expect.dart";
class Switcher {
Switcher() {}
say1(sound) {
var x = 0;
switch (sound) {
MOO:
case "moo":
x = 100;
break;
case "woof":
x = 200;
continue MOO;
default:
x = 300;
break;
}
return x;
}
say2(sound) {
var x = 0;
switch (sound) {
WOOF:
case "woof":
x = 200;
break;
case "moo":
x = 100;
continue WOOF;
default:
x = 300;
break;
}
return x;
}
// forward label to outer switch
say3(animal, sound) {
var x = 0;
switch (animal) {
case "cow":
switch (sound) {
case "moo":
x = 100;
break;
case "muh":
x = 200;
break;
default:
continue NIX_UNDERSTAND;
}
break;
case "dog":
if (sound == "woof") {
x = 300;
} else {
continue NIX_UNDERSTAND;
}
break;
NIX_UNDERSTAND:
case "unicorn":
x = 400;
break;
default:
x = 500;
break;
}
return x;
}
}
class SwitchLabelTest {
static testMain() {
Switcher s = new Switcher();
Expect.equals(100, s.say1("moo"));
Expect.equals(100, s.say1("woof"));
Expect.equals(300, s.say1("cockadoodledoo"));
Expect.equals(200, s.say2("moo"));
Expect.equals(200, s.say2("woof"));
Expect.equals(300, s.say2("")); // Dead unicorn says nothing.
Expect.equals(100, s.say3("cow", "moo"));
Expect.equals(200, s.say3("cow", "muh"));
Expect.equals(400, s.say3("cow", "boeh")); // Don't ask.
Expect.equals(300, s.say3("dog", "woof"));
Expect.equals(400, s.say3("dog", "boj")); // ─łu vi parolas Esperanton?
Expect.equals(400, s.say3("unicorn", "")); // Still dead.
Expect.equals(500, s.say3("angry bird", "whoooo"));
}
}
main() {
SwitchLabelTest.testMain();
}