Infra for running lib tests

test/codegen/lib/typed_data/endianness_test.dart

Index: test/codegen/lib/typed_data/endianness_test.dart
diff --git a/test/codegen/lib/typed_data/endianness_test.dart b/test/codegen/lib/typed_data/endianness_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..1fdacd2c1f81f68135e86e9bca4ab50c357993e2
--- /dev/null
+++ b/test/codegen/lib/typed_data/endianness_test.dart
@@ -0,0 +1,84 @@
+// 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 'dart:typed_data';
+import "package:expect/expect.dart";
+
+main() {
+  swapTest();
+  swapTestVar(Endianness.LITTLE_ENDIAN, Endianness.BIG_ENDIAN);
+  swapTestVar(Endianness.BIG_ENDIAN, Endianness.LITTLE_ENDIAN);
+}
+
+swapTest() {
+  ByteData data = new ByteData(16);
+  Expect.equals(16, data.lengthInBytes);
+  for (int i = 0; i < 4; i++) {
+    data.setInt32(i * 4, i);
+  }
+
+  for (int i = 0; i < data.lengthInBytes; i += 4) {
+    var e = data.getInt32(i, Endianness.BIG_ENDIAN);
+    data.setInt32(i, e, Endianness.LITTLE_ENDIAN);
+  }
+
+  Expect.equals(0x02000000, data.getInt32(8));
+
+  for (int i = 0; i < data.lengthInBytes; i += 2) {
+    var e = data.getInt16(i, Endianness.BIG_ENDIAN);
+    data.setInt16(i, e, Endianness.LITTLE_ENDIAN);
+  }
+
+  Expect.equals(0x00020000, data.getInt32(8));
+
+  for (int i = 0; i < data.lengthInBytes; i += 4) {
+    var e = data.getUint32(i, Endianness.LITTLE_ENDIAN);
+    data.setUint32(i, e, Endianness.BIG_ENDIAN);
+  }
+
+  Expect.equals(0x00000200, data.getInt32(8));
+
+  for (int i = 0; i < data.lengthInBytes; i += 2) {
+    var e = data.getUint16(i, Endianness.LITTLE_ENDIAN);
+    data.setUint16(i, e, Endianness.BIG_ENDIAN);
+  }
+
+  Expect.equals(0x00000002, data.getInt32(8));
+}
+
+swapTestVar(read, write) {
+  ByteData data = new ByteData(16);
+  Expect.equals(16, data.lengthInBytes);
+  for (int i = 0; i < 4; i++) {
+    data.setInt32(i * 4, i);
+  }
+
+  for (int i = 0; i < data.lengthInBytes; i += 4) {
+    var e = data.getInt32(i, read);
+    data.setInt32(i, e, write);
+  }
+
+  Expect.equals(0x02000000, data.getInt32(8));
+
+  for (int i = 0; i < data.lengthInBytes; i += 2) {
+    var e = data.getInt16(i, read);
+    data.setInt16(i, e, write);
+  }
+
+  Expect.equals(0x00020000, data.getInt32(8));
+
+  for (int i = 0; i < data.lengthInBytes; i += 4) {
+    var e = data.getUint32(i, read);
+    data.setUint32(i, e, write);
+  }
+
+  Expect.equals(0x00000200, data.getInt32(8));
+
+  for (int i = 0; i < data.lengthInBytes; i += 2) {
+    var e = data.getUint16(i, read);
+    data.setUint16(i, e, write);
+  }
+
+  Expect.equals(0x00000002, data.getInt32(8));
+}