[Chromecast] Consolidate duplicated crash test functions.

chromecast/app/linux/cast_crash_reporter_client_unittest.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <fstream>
 
 #include "base/base_paths.h"
 #include "base/bind.h"
 #include "base/files/file.h"
 #include "base/files/file_util.h"
 #include "base/memory/scoped_vector.h"
 #include "base/test/scoped_path_override.h"
 #include "base/threading/thread_restrictions.h"
 #include "base/values.h"
 #include "chromecast/app/linux/cast_crash_reporter_client.h"
-#include "chromecast/base/serializers.h"
 #include "chromecast/crash/app_state_tracker.h"
+#include "chromecast/crash/linux/crash_testing_utils.h"
 #include "chromecast/crash/linux/crash_util.h"
 #include "chromecast/crash/linux/dump_info.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace chromecast {
 namespace {
 
 const char kFakeDumpstateContents[] = "Dumpstate Contents\nDumpdumpdumpdump\n";
 const char kFakeMinidumpContents[] = "Minidump Contents\nLine1\nLine2\n";
-const char kDumpsKey[] = "dumps";
 
 int WriteFakeDumpStateFile(const std::string& path) {
   // Append the correct extension and write the data to file.
   base::File dumpstate(base::FilePath(path).AddExtension(".txt.gz"),
                        base::File::FLAG_CREATE_ALWAYS | base::File::FLAG_WRITE);
   dumpstate.Write(
       0, kFakeDumpstateContents, sizeof(kFakeDumpstateContents) - 1);
   return 0;
 }
 
-bool FetchDumps(const std::string& lockfile_path,
-                ScopedVector<DumpInfo>* dumps) {
-  if (!dumps) {
-    return false;
-  }
-  dumps->clear();
-
-  base::FilePath path(lockfile_path);
-  scoped_ptr<base::Value> contents(DeserializeJsonFromFile(path));
-
-  base::DictionaryValue* dict;
-  base::ListValue* dump_list;
-  if (!contents || !contents->GetAsDictionary(&dict) ||
-      !dict->GetList(kDumpsKey, &dump_list) || !dump_list) {
-    return false;
-  }
-
-  for (base::Value* elem : *dump_list) {
-    scoped_ptr<DumpInfo> dump = make_scoped_ptr(new DumpInfo(elem));
-    if (!dump->valid()) {
-      return false;
-    }
-    dumps->push_back(dump.Pass());
-  }
-
-  return true;
-}
-
 }  // namespace
 
 class CastCrashReporterClientTest : public testing::Test {
  protected:
   CastCrashReporterClientTest() {}
   ~CastCrashReporterClientTest() override {}
 
   static void SetUpTestCase() {
     // Set a callback to be used in place of the |dumpstate| executable.
     CrashUtil::SetDumpStateCbForTest(base::Bind(&WriteFakeDumpStateFile));
@@ skipping 95 matching lines @@
   base::ThreadRestrictions::SetIOAllowed(true);
   CastCrashReporterClient client;
   ASSERT_TRUE(client.HandleCrashDump(minidump_path().value().c_str()));
 
   // Assert that the thread is not IO restricted when the function exits.
   // Note that SetIOAllowed returns the previous value.
   ASSERT_TRUE(base::ThreadRestrictions::SetIOAllowed(true));
 }
 
 }  // namespace chromecast