Enforce length/size limits for variable size heap object in order to

vm/dart_api_impl_test.cc

 // Copyright (c) 2012, 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.
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "platform/json.h"
 #include "platform/utils.h"
 #include "vm/class_finalizer.h"
 #include "vm/dart_api_impl.h"
@@ skipping 6474 matching lines @@
   EXPECT_VALID(result);
 
   result = Dart_Invoke(lib, Dart_NewString("testMain"), 0, NULL);
   EXPECT_VALID(result);
   EXPECT(Dart_IsInteger(result));
   int64_t value = 0;
   EXPECT_VALID(Dart_IntegerToInt64(result, &value));
   EXPECT_EQ(0, value);
 }
 
+
+TEST_CASE(RangeLimits) {
+  uint8_t chars8[1] = {'a'};
+  uint16_t chars16[1] = {'a'};
+  uint32_t chars32[1] = {'a'};
+
+  EXPECT_ERROR(Dart_NewList(-1),
+               "expects argument 'length' to be in the range");
+  EXPECT_ERROR(Dart_NewList(Array::kMaxElements+1),
+               "expects argument 'length' to be in the range");
+  EXPECT_ERROR(Dart_NewString8(chars8, -1),
+               "expects argument 'length' to be in the range");
+  EXPECT_ERROR(Dart_NewString8(chars8, OneByteString::kMaxElements+1),
+               "expects argument 'length' to be in the range");
+  EXPECT_ERROR(Dart_NewString16(chars16, -1),
+               "expects argument 'length' to be in the range");
+  EXPECT_ERROR(Dart_NewString16(chars16, TwoByteString::kMaxElements+1),
+               "expects argument 'length' to be in the range");
+  EXPECT_ERROR(Dart_NewString32(chars32, -1),
+               "expects argument 'length' to be in the range");
+  EXPECT_ERROR(Dart_NewString32(chars32, FourByteString::kMaxElements+1),
+               "expects argument 'length' to be in the range");
+}
+
+
 #endif  // defined(TARGET_ARCH_IA32) || defined(TARGET_ARCH_X64).
 
 }  // namespace dart