dart2js typed data constructor argument validation

tests/lib/typed_data/constructor_checks_test.dart

Index: tests/lib/typed_data/constructor_checks_test.dart
diff --git a/tests/lib/typed_data/constructor_checks_test.dart b/tests/lib/typed_data/constructor_checks_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..3842ac196d4389a4673799ca0fcc34e71f357d42
--- /dev/null
+++ b/tests/lib/typed_data/constructor_checks_test.dart
@@ -0,0 +1,71 @@
+// 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.
+
+import 'package:expect/expect.dart';
+import 'dart:typed_data';
+
+checkLengthConstructors() {
+  check(creator) {
+    Expect.throws(() => creator(null));
+    Expect.throws(() => creator(8.5));
+    Expect.throws(() => creator('10'));
+    var a = creator(10);
+    Expect.equals(10, a.length);
+  }
+
+  check((a) => new Float32List(a));
+  check((a) => new Float64List(a));
+  check((a) => new Int8List(a));
+  check((a) => new Int8List(a));
+  check((a) => new Int16List(a));
+  check((a) => new Int32List(a));
+  check((a) => new Uint8List(a));
+  check((a) => new Uint16List(a));
+  check((a) => new Uint32List(a));
+}
+
+checkViewConstructors() {
+  var buffer = new Int8List(256).buffer;
+
+  check1(creator) {
+    Expect.throws(() => creator(10));
+    Expect.throws(() => creator(null));
+    var a = creator(buffer);
+    Expect.equals(buffer, a.buffer);
+  }
+
+  check2(creator) {
+    Expect.throws(() => creator(10, 0));
+    Expect.throws(() => creator(null, 0));
+    Expect.throws(() => creator(buffer, null));
+    Expect.throws(() => creator(buffer, '8'));
+    var a = creator(buffer, 8);
+    Expect.equals(buffer, a.buffer);
+  }
+
+  check1((a) => new Float32List.view(a));
+  check1((a) => new Float64List.view(a));
+  check1((a) => new Int8List.view(a));
+  check1((a) => new Int8List.view(a));
+  check1((a) => new Int16List.view(a));
+  check1((a) => new Int32List.view(a));
+  check1((a) => new Uint8List.view(a));
+  check1((a) => new Uint16List.view(a));
+  check1((a) => new Uint32List.view(a));
+
+  check2((a, b) => new Float32List.view(a, b));
+  check2((a, b) => new Float64List.view(a, b));
+  check2((a, b) => new Int8List.view(a, b));
+  check2((a, b) => new Int8List.view(a, b));
+  check2((a, b) => new Int16List.view(a, b));
+  check2((a, b) => new Int32List.view(a, b));
+  check2((a, b) => new Uint8List.view(a, b));
+  check2((a, b) => new Uint16List.view(a, b));
+  check2((a, b) => new Uint32List.view(a, b));
+}
+
+main() {
+  checkLengthConstructors();
+  checkViewConstructors();
+}