Add MinidumpRVAListWriter and test

minidump/test/minidump_rva_list_test_util.cc

+// Copyright 2014 The Crashpad Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "minidump/test/minidump_rva_list_test_util.h"
+
+#include <dbghelp.h>
+
+#include "minidump/minidump_extensions.h"
+#include "minidump/test/minidump_writable_test_util.h"
+
+namespace crashpad {
+namespace test {
+
+const MinidumpRVAList* MinidumpRVAListAtStart(const std::string& file_contents,
+                                              size_t count) {
+  MINIDUMP_LOCATION_DESCRIPTOR location_descriptor;
+  location_descriptor.DataSize =
+      sizeof(MinidumpLocationDescriptorList) + count * sizeof(RVA);
+  location_descriptor.Rva = 0;
+
+  const MinidumpRVAList* list =
+      MinidumpWritableAtLocationDescriptor<MinidumpRVAList>(
+          file_contents, location_descriptor);
+  if (!list) {
+    return nullptr;
+  }
+
+  if (list->count != count) {
+    EXPECT_EQ(count, list->count);
+    return nullptr;
+  }
+
+  return list;
+}
+
+}  // namespace test
+}  // namespace crashpad