dart-sdk/tests/dart2js/boolean_conversion_test.dart
Joshua Litt 66c1b51c07 [dart2js] 20 dart2js tests ported to nnbd #1.
Change-Id: I8cb1bb03655762669ac88775b5aee763e79c4b11
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/152594
Reviewed-by: Stephen Adams <sra@google.com>
Commit-Queue: Joshua Litt <joshualitt@google.com>
2020-06-26 15:21:42 +00:00

104 lines
1.9 KiB
Dart

// Copyright (c) 2019, 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.
// dart2jsOptions=--omit-implicit-checks
// Note: --omit-implicit-checks causes Expect.isNull to misbehave, so we use
// Expect.equals(null, ...) instead.
import 'package:expect/expect.dart';
void main() {
conditionalTest();
orTest();
andTest();
ifTest();
forTest();
whileTest();
doTest();
notTest();
ifElementTest();
forElementTest();
}
void conditionalTest() {
bool x = null as dynamic;
Expect.isFalse(x ? true : false);
}
void orTest() {
bool x = null as dynamic;
Expect.equals(null, x || x);
Expect.isFalse(x || false);
Expect.isTrue(x || true);
Expect.equals(null, false || x);
Expect.isTrue(true || x);
}
void andTest() {
bool x = null as dynamic;
Expect.isFalse(x && x);
Expect.isFalse(x && false);
Expect.isFalse(x && true);
Expect.isFalse(false && x);
Expect.equals(null, true && x);
}
void ifTest() {
bool x = null as dynamic;
Expect.isFalse(() {
if (x) {
return true;
} else {
return false;
}
}());
}
void forTest() {
bool x = null as dynamic;
Expect.isFalse(() {
for (; x;) {
return true;
}
return false;
}());
}
void whileTest() {
bool x = null as dynamic;
Expect.isFalse(() {
while (x) {
return true;
}
return false;
}());
}
void doTest() {
bool x = null as dynamic;
Expect.equals(1, () {
int n = 0;
do {
n++;
} while (x);
return n;
}());
}
void notTest() {
bool x = null as dynamic;
Expect.isTrue(!x);
}
void ifElementTest() {
bool x = null as dynamic;
Expect.listEquals([], [if (x) 1]);
}
void forElementTest() {
bool x = null as dynamic;
Expect.listEquals([], [for (var i = 0; x; i++) i]);
}