#ifndef __HASHFUNCTIONS_H__#define __HASHFUNCTIONS_H__ #include <stdio.h>#include <string.h>#include <gtest/gtest.h>#include "../sha1.h" static void CompareHash (const unsigned char* digest, const char* hashStr) {  char hashStrCmp[SHA_DIGEST_LENGTH * 2 + 1];  for (int i = 0; i < SHA_DIGEST_LENGTH; ++i) {    sprintf (&hashStrCmp[i * 2], "%.2x", digest[i]);  }  hashStrCmp[SHA_DIGEST_LENGTH * 2] = '\0';  EXPECT_STREQ (hashStr, hashStrCmp);} #endif //__HASHFUNCTIONS_H__