This adds a recovery mode to the diagnostics

chrome/browser/diagnostics/diagnostics_controller_unittest.cc

+// Copyright (c) 2013 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 "chrome/browser/diagnostics/diagnostics_controller.h"
+
+#include "base/command_line.h"
+#include "base/file_util.h"
+#include "base/files/scoped_temp_dir.h"
+#include "base/memory/scoped_ptr.h"
+#include "chrome/browser/diagnostics/diagnostics_model.h"
+#include "chrome/browser/diagnostics/diagnostics_writer.h"
+#include "chrome/browser/diagnostics/sqlite_diagnostics.h"
+#include "chrome/common/chrome_switches.h"
+#include "chromeos/chromeos_constants.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace diagnostics {
+
+namespace {
+const base::FilePath::CharType kTestUserHomeData[] =
+    FILE_PATH_LITERAL("chrome/test/data/diagnostics/user");
+}
+
+// Basic harness to acquire and release the required temporary environment to
+// run a test in.
+class DiagnosticsControllerTest : public testing::Test {
+ protected:
+  DiagnosticsControllerTest()
+      : cmdline_(CommandLine::NO_PROGRAM) {
+  }
+
+  virtual ~DiagnosticsControllerTest() { }
+
+  virtual void SetUp() {
+    ASSERT_TRUE(temp_dir_.CreateUniqueTempDir());
+    base::CopyDirectory(
+        base::FilePath(kTestUserHomeData), temp_dir_.path(), true);
+    profile_dir_ = temp_dir_.path().Append(FILE_PATH_LITERAL("user"));
+
+#if defined(OS_CHROMEOS)
+    // Redirect the home dir to the profile directory. We have to do this
+    // because NSS uses the HOME directory to find where to store it's database,
+    // so that's where the diagnostics and recovery code looks for it.
+
+    // Preserve existing home directory setting, if any.
+    const char* old_home_dir = ::getenv("HOME");
+    if (old_home_dir)
+      old_home_dir_ = old_home_dir;
+    else
+      old_home_dir_.clear();
+    ::setenv("HOME", profile_dir_.value().c_str(), 1);
+#endif
+
+    cmdline_ = CommandLine(CommandLine::NO_PROGRAM);
+    cmdline_.AppendSwitchPath(switches::kUserDataDir, profile_dir_);
+    cmdline_.AppendSwitch(switches::kDiagnostics);
+    cmdline_.AppendSwitch(switches::kDiagnosticsRecovery);
+    writer_.reset();
+    // Use this writer instead, if you want to see the diagnostics output.
+    // writer_.reset(new DiagnosticsWriter(DiagnosticsWriter::MACHINE));
+  }
+
+  virtual void TearDown() {
+    DiagnosticsController::GetInstance()->ClearResults();
+#if defined(OS_CHROMEOS)
+    if (!old_home_dir_.empty()) {
+      ::setenv("HOME", old_home_dir_.c_str(), 1);
+    } else {
+      ::unsetenv("HOME");
+    }
+    old_home_dir_.clear();
+#endif
+  }
+
+  void CorruptDataFile(const base::FilePath& path) {
+    // Just write some random characters into the file to "corrupt" it.
+    const std::string bogus_data = "wwZ2uNYNuyUVzFbDm3DL";
+    file_util::WriteFile(path, bogus_data.c_str(), bogus_data.size());

[cpu_(ooo_6.6-7.5), 2013/07/25 19:40:56]

bogus_data[] = "wwZ2uNYNuyUVzFbDm3DL";

[Greg Spencer (Chromium), 2013/07/26 18:51:30]

Done.

+  }
+
+  scoped_ptr<DiagnosticsModel> model_;
+  CommandLine cmdline_;
+  base::ScopedTempDir temp_dir_;
+  scoped_ptr<DiagnosticsWriter> writer_;
+  base::FilePath profile_dir_;
+
+#if defined(OS_CHROMEOS)
+  std::string old_home_dir_;
+#endif
+
+  DISALLOW_COPY_AND_ASSIGN(DiagnosticsControllerTest);
+};
+
+TEST_F(DiagnosticsControllerTest, Diagnostics) {
+  DiagnosticsController::GetInstance()->Run(cmdline_, writer_.get());
+  EXPECT_TRUE(DiagnosticsController::GetInstance()->HasResults());
+  const DiagnosticsModel& results =
+      DiagnosticsController::GetInstance()->GetResults();
+  EXPECT_EQ(results.GetTestRunCount(), results.GetTestAvailableCount());
+  EXPECT_EQ(DiagnosticsModel::kDiagnosticsTestCount, results.GetTestRunCount());
+  for (int i = 0; i < results.GetTestRunCount(); ++i) {
+    const DiagnosticsModel::TestInfo& info(results.GetTest(i));
+    EXPECT_EQ(DiagnosticsModel::TEST_OK, info.GetResult());
+  }
+}
+
+TEST_F(DiagnosticsControllerTest, RecoverAllOK) {
+  DiagnosticsController::GetInstance()->Run(cmdline_, writer_.get());
+  DiagnosticsController::GetInstance()->RunRecovery(cmdline_, writer_.get());
+  EXPECT_TRUE(DiagnosticsController::GetInstance()->HasResults());
+  const DiagnosticsModel& results =
+      DiagnosticsController::GetInstance()->GetResults();
+  EXPECT_EQ(results.GetTestRunCount(), results.GetTestAvailableCount());
+  EXPECT_EQ(DiagnosticsModel::kDiagnosticsTestCount, results.GetTestRunCount());
+  for (int i = 0; i < results.GetTestRunCount(); ++i) {
+    const DiagnosticsModel::TestInfo& info(results.GetTest(i));
+    EXPECT_EQ(DiagnosticsModel::RECOVERY_OK, info.GetResult());
+  }
+}
+
+#if defined(OS_CHROMEOS)
+TEST_F(DiagnosticsControllerTest, RecoverFromNssCertDbFailure) {
+  base::FilePath db_path = profile_dir_.Append(chromeos::kNssCertDbPath);
+  EXPECT_TRUE(base::PathExists(db_path));
+  CorruptDataFile(db_path);
+  DiagnosticsController::GetInstance()->Run(cmdline_, writer_.get());
+  ASSERT_TRUE(DiagnosticsController::GetInstance()->HasResults());
+  const DiagnosticsModel& results =
+      DiagnosticsController::GetInstance()->GetResults();
+  EXPECT_EQ(results.GetTestRunCount(), results.GetTestAvailableCount());
+  EXPECT_EQ(DiagnosticsModel::kDiagnosticsTestCount, results.GetTestRunCount());
+
+  const DiagnosticsModel::TestInfo* info = NULL;
+  EXPECT_TRUE(results.GetTestInfo(kSQLiteIntegrityNSSCertTest, &info));
+  EXPECT_EQ(DiagnosticsModel::TEST_FAIL_CONTINUE, info->GetResult());
+  EXPECT_EQ(DIAG_SQLITE_ERROR_HANDLER_CALLED, info->GetOutcomeCode());
+
+  DiagnosticsController::GetInstance()->RunRecovery(cmdline_, writer_.get());
+  EXPECT_EQ(DiagnosticsModel::RECOVERY_OK, info->GetResult());
+  EXPECT_FALSE(base::PathExists(db_path));
+}
+
+TEST_F(DiagnosticsControllerTest, RecoverFromNssKeyDbFailure) {
+  base::FilePath db_path = profile_dir_.Append(chromeos::kNssKeyDbPath);
+  EXPECT_TRUE(base::PathExists(db_path));
+  CorruptDataFile(db_path);
+  DiagnosticsController::GetInstance()->Run(cmdline_, writer_.get());
+  ASSERT_TRUE(DiagnosticsController::GetInstance()->HasResults());
+  const DiagnosticsModel& results =
+      DiagnosticsController::GetInstance()->GetResults();
+  EXPECT_EQ(results.GetTestRunCount(), results.GetTestAvailableCount());
+  EXPECT_EQ(DiagnosticsModel::kDiagnosticsTestCount, results.GetTestRunCount());
+
+  const DiagnosticsModel::TestInfo* info = NULL;
+  EXPECT_TRUE(results.GetTestInfo(kSQLiteIntegrityNSSKeyTest, &info));
+  EXPECT_EQ(DiagnosticsModel::TEST_FAIL_CONTINUE, info->GetResult());
+  EXPECT_EQ(DIAG_SQLITE_ERROR_HANDLER_CALLED, info->GetOutcomeCode());
+
+  DiagnosticsController::GetInstance()->RunRecovery(cmdline_, writer_.get());
+  EXPECT_EQ(DiagnosticsModel::RECOVERY_OK, info->GetResult());
+  EXPECT_FALSE(base::PathExists(db_path));
+}
+#endif
+
+}  // namespace diagnostics