/*
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 * published by the Free Software Foundation.
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 * which is part of <MySQL Product>, is also subject to the
 * Universal FOSS Exception, version 1.0, a copy of which can be found at
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/**
  Unit tests for CDK time functions.
*/

#include "test.h"
#include <iostream>
#include <mysql/cdk/foundation/cdk_time.h>

using ::std::cout;
using ::std::endl;
using namespace cdk::foundation;


TEST(Foundation, time)
{
  using cdk::foundation::time_t;
  using cdk::foundation::sleep;

  time_t begin = get_time();

  cout <<"Start time is " <<begin/1000.0 <<" seconds from epoch"  <<endl;

  cout <<"Sleeping for 300 ms" <<endl;
  time_t start = get_time();
  sleep(300);
  time_t stop = get_time();

  cout <<"Measured delay: " <<(stop - start) <<"ms" <<endl;

  // Note: observed accuracy worse than +-30ms
  #define MARGIN 30
  EXPECT_FALSE(stop > start + 300 + MARGIN);
  EXPECT_FALSE(stop < start + 300 - MARGIN);
}

