Files
sdk/tests/language/loop/while_test.dart
T
Robert Nystrom 3218ba8412 Migrate language_2/loop to NNBD.
Change-Id: Id8fee2221036b8dca12675ba3e4fc1c0ab7a09b7
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/149393
Auto-Submit: Bob Nystrom <rnystrom@google.com>
Reviewed-by: Srujan Gaddam <srujzs@google.com>
Commit-Queue: Bob Nystrom <rnystrom@google.com>
2020-05-29 23:48:57 +00:00

56 lines
1.2 KiB
Dart

// 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.
// Dart test program for testing while statement.
import "package:expect/expect.dart";
class Helper {
static int f1(bool b) {
while (b) return 1;
return 2;
}
static int f2(bool b) {
while (b) {
return 1;
}
return 2;
}
static int f3(int n) {
int i = 0;
while (i < n) {
i++;
}
return i;
}
static int f4() {
// Verify that side effects in the condition are visible after the loop.
int i = 0;
while (++i < 3) {}
return i;
}
}
class WhileTest {
static testMain() {
Expect.equals(1, Helper.f1(true));
Expect.equals(2, Helper.f1(false));
Expect.equals(1, Helper.f2(true));
Expect.equals(2, Helper.f2(false));
Expect.equals(0, Helper.f3(-2));
Expect.equals(0, Helper.f3(-1));
Expect.equals(0, Helper.f3(0));
Expect.equals(1, Helper.f3(1));
Expect.equals(2, Helper.f3(2));
Expect.equals(3, Helper.f4());
}
}
main() {
WhileTest.testMain();
}