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Unified Diff: tests/language/async_test.dart

Issue 423213005: Reland transformation of async functions. (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart
Patch Set: Created 6 years, 5 months ago
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Index: tests/language/async_test.dart
diff --git a/tests/language/async_test.dart b/tests/language/async_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..d9e638173e4e0859b0e9ff1affb7f2d6fe0b997f
--- /dev/null
+++ b/tests/language/async_test.dart
@@ -0,0 +1,129 @@
+// Copyright (c) 2014, 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.
+
+// VMOptions=--enable_async
+
+import 'package:expect/expect.dart';
+
+import 'dart:async';
+
+topLevelFunction() async { }
+
+Future<int> topLevelWithParameter(int a) async {
+ return 7 + a;
+}
+
+int topLevelWithParameterWrongType(int a) async {
+ return 7 + a;
+}
+
+var what = 'async getter';
+Future<String> get topLevelGetter async {
+ return 'I want to be an ${what}';
+}
+
+class A {
+ static int staticVar = 1;
+
+ static staticMethod(int param) async => staticVar + param;
+ static get staticGetter async => staticVar + 3;
+
+ int _x;
+ A(this._x);
+
+ A.fail() async; /// constructor2: compile-time error
+ factory A.create() async {return null; } /// constructor3: compile-time error
+
+ int someMethod(int param1, int param2, int param3) async => _x + param2;
+ int get getter async { return 5 + _x; }
+ operator+(A other) async {
+ return new A(_x + other._x);
+ }
+
+ get value => _x;
+}
+
+class B {
+ final _y;
+ const B._internal(this._y);
+ const factory B.createConst(int y) async = A._internal; /// constructor4: compile-time error
+
+ B();
+
+ set dontDoThat(value) async {} /// setter1: compile-time error
+}
+
+
+main() {
+ var asyncReturn;
+
+ asyncReturn = topLevelFunction();
+ Expect.isTrue(asyncReturn is Future);
+
+ int a1 = topLevelWithParameter(2); /// type-mismatch1: static type warning, dynamic type error
+ int a2 = topLevelWithParameterWrongType(2); /// type-mismatch2: static type warning, dynamic type error
+ asyncReturn = topLevelWithParameter(4);
+ Expect.isTrue(asyncReturn is Future);
+ asyncReturn.then((int result) => Expect.equals(result, 11));
+
+ asyncReturn = topLevelGetter;
+ Expect.isTrue(asyncReturn is Future);
+ asyncReturn.then((String result) =>
+ Expect.stringEquals(result, 'I want to be an async getter'));
+
+ asyncReturn = A.staticMethod(2);
+ Expect.isTrue(asyncReturn is Future);
+ asyncReturn.then((int result) => Expect.equals(result, 3));
+
+ asyncReturn = A.staticGetter;
+ Expect.isTrue(asyncReturn is Future);
+ asyncReturn.then((int result) => Expect.equals(result, 4));
+
+ A a = new A(13);
+
+ asyncReturn = a.someMethod(1,2,3); /// type-mismatch3: static type warning, dynamic type error
+ Expect.isTrue(asyncReturn is Future); /// type-mismatch3: continued
+ asyncReturn.then((int result) => Expect.equals(result, 15)); /// type-mismatch3: continued
+
+ asyncReturn = a.getter; /// type-mismatch4: static type warning, dynamic type error
+ Expect.isTrue(asyncReturn is Future); /// type-mismatch4: continued
+ asyncReturn.then((int result) => Expect.equals(result, 18)); /// type-mismatch4: continued
+
+ var b = new A(9);
+ asyncReturn = a + b;
+ Expect.isTrue(asyncReturn is Future);
+ asyncReturn.then((A result) => Expect.equals(result.value, 22));
+
+ var foo = 17;
+ bar(int p1, p2) async {
+ var z = 8;
+ return p2 + z + foo;
+ }
+ asyncReturn = bar(1,2);
+ Expect.isTrue(asyncReturn is Future);
+ asyncReturn.then((int result) => Expect.equals(result, 27));
+
+ var moreNesting = (int shadowP1, String p2, num p3) {
+ var z = 3;
+ aa(int shadowP1) async {
+ return foo + z + p3 + shadowP1;
+ }
+ return aa(6);
+ };
+ asyncReturn = moreNesting(1, "ignore", 2);
+ Expect.isTrue(asyncReturn is Future);
+ asyncReturn.then((int result) => Expect.equals(result, 28));
+
+ var b1 = const B.createConst(4); /// constructor4: compile-time error
+ var b2 = new B();
+ b2.dontDoThat = 4; /// setter1: compile-time error
+
+ var checkAsync = (var someFunc) {
+ var toTest = someFunc();
+ Expect.isTrue(toTest is Future);
+ toTest.then((int result) => Expect.equals(result, 4));
+ };
+ checkAsync(() async => 4);
+
+}

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