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#include <string>

#include "base/file_util.h"
#include "testing/base/public/googletest.h"
#include "testing/base/public/gunit.h"
#include "win32/base/file_verifier.h"

DECLARE_string(test_srcdir);

namespace mozc {
namespace win32 {

namespace {

class TestableFileVerifier : public FileVerifier {
 public:
  // Change access rights.
  using FileVerifier::VerifyIntegrityImpl;
};

static string GetTestFile(const string &filename) {
  string result = FLAGS_test_srcdir;
  result = FileUtil::JoinPath(result, "data/test/win32/integrity");
  result = FileUtil::JoinPath(result, filename);
  return result;
}

}  // namespace

TEST(FileVerifierTest, FileNotFound) {
  const char kTestFile[] = "__file_not_found__";
  EXPECT_EQ(FileVerifier::kIntegrityFileNotFound,
            TestableFileVerifier::VerifyIntegrityImpl(GetTestFile(kTestFile)));
}

TEST(FileVerifierTest, NonSignedFile) {
  const char kTestFile[] = "mozc_test_binary.exe";
  EXPECT_EQ(FileVerifier::kIntegrityVerifiedWithPEChecksum,
            TestableFileVerifier::VerifyIntegrityImpl(GetTestFile(kTestFile)));
}

TEST(FileVerifierTest, SignedFile) {
  const char kTestFile[] = "mozc_test_binary_signed.exe";
  EXPECT_EQ(FileVerifier::kIntegrityVerifiedWithAuthenticodeHash,
            TestableFileVerifier::VerifyIntegrityImpl(GetTestFile(kTestFile)));
}

TEST(FileVerifierTest, ModifiedNonSignedFile) {
  const char kTestFile[] = "mozc_test_binary_modified.exe";
  EXPECT_EQ(FileVerifier::kIntegrityCorrupted,
            TestableFileVerifier::VerifyIntegrityImpl(GetTestFile(kTestFile)));
}

TEST(FileVerifierTest, ModifiedSignedFile) {
  const char kTestFile[] = "mozc_test_binary_modified_signed.exe";
  EXPECT_EQ(FileVerifier::kIntegrityCorrupted,
            TestableFileVerifier::VerifyIntegrityImpl(GetTestFile(kTestFile)));
}

TEST(FileVerifierTest, NoPEChecksumFile) {
  const char kTestFile[] = "mozc_test_binary_no_checksum.exe";
  EXPECT_EQ(FileVerifier::kIntegrityUnknown,
            TestableFileVerifier::VerifyIntegrityImpl(GetTestFile(kTestFile)));
}

}  // namespace win32
}  // namespace mozc