[win] Create utilities for helping to populate ModuleDatabase.

chrome/browser/conflicts/module_info_util_win_unittest.cc

+// Copyright 2017 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/conflicts/module_info_util_win.h"
+
+#include <memory>
+
+#include "base/base_paths.h"
+#include "base/environment.h"
+#include "base/files/file_path.h"
+#include "base/path_service.h"
+#include "base/strings/utf_string_conversions.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+TEST(ModuleInfoUtil, GetCertificateInfoUnsigned) {
+  base::FilePath path;
+  ASSERT_TRUE(base::PathService::Get(base::FILE_EXE, &path));
+  ModuleDatabase::CertificateInfo cert_info;
+  GetCertificateInfo(path, &cert_info);
+  EXPECT_EQ(ModuleDatabase::NO_CERTIFICATE, cert_info.type);
+  EXPECT_TRUE(cert_info.path.empty());
+  EXPECT_TRUE(cert_info.subject.empty());
+}
+
+TEST(ModuleInfoUtil, GetCertificateInfoSigned) {
+  std::unique_ptr<base::Environment> env = base::Environment::Create();
+  std::string sysroot;
+  ASSERT_TRUE(env->GetVar("SYSTEMROOT", &sysroot));
+
+  base::FilePath path =
+      base::FilePath::FromUTF8Unsafe(sysroot).Append(L"system32\\kernel32.dll");
+
+  ModuleDatabase::CertificateInfo cert_info;
+  GetCertificateInfo(path, &cert_info);
+  EXPECT_NE(ModuleDatabase::NO_CERTIFICATE, cert_info.type);
+  EXPECT_FALSE(cert_info.path.empty());
+  EXPECT_FALSE(cert_info.subject.empty());
+}