title: Even Fibonacci Numbers Sum
signature: function evenFibonacciNumbersSum(limit) {
test_code: 
  
  // SOLUTION CODE
  // ============================================
  PLACEHOLDER_CODE_BODY
  
  // TESTING CODE 
  // ============================================
  function convertToString(value) {
      return JSON.stringify(value, function (key, val) {
          if (val instanceof Set) {
              return Array.from(val);
          } return val;});
  }
  
  function validateSolution(actual, expected){
      return convertToString(actual)===convertToString(expected);
  }
  
  function driver(limit, expected){
      try{
          if (validateSolution(PLACEHOLDER_FN_NAME(limit),expected)){
              return "PASSED";
          }
          return "FAILED";
      } catch (error) {
        return error.name;
      }
      
  }
      
  function main(){
    let result = '';
    result = driver(67, 44);
    console.log(`TEST-0...${result}`);
  
    result = driver(89, 44);
    console.log(`TEST-1...${result}`);
  
    result = driver(12, 10);
    console.log(`TEST-2...${result}`);
  
    result = driver(94, 44);
    console.log(`TEST-3...${result}`);
  
    result = driver(96, 44);
    console.log(`TEST-4...${result}`);
  
    result = driver(25, 10);
    console.log(`TEST-5...${result}`);
  
    result = driver(49, 44);
    console.log(`TEST-6...${result}`);
  
    result = driver(8, 10);
    console.log(`TEST-7...${result}`);
  
    result = driver(33, 10);
    console.log(`TEST-8...${result}`);
  
    result = driver(59, 44);
    console.log(`TEST-9...${result}`);
  
    process.exit(0);
  };
  
  if (require.main === module) {
    main();
  }
source_py: def even_fibonacci_numbers_sum(limit):
      if (limit < 2):
          return 0
      ef1 = 0
      ef2 = 2
      sm = (ef1 + ef2)
      while (ef2 <= limit):
          ef3 = ((4 * ef2) + ef1)
          if (ef3 > limit):
              break
          ef1 = ef2
          ef2 = ef3
          sm = (sm + ef2)
      return sm
source_cpp: int even_fibonacci_numbers_sum(int limit) {
    if ( limit < 2 ) return 0;
    long long int ef1 = 0, ef2 = 2;
    long long int sum = ef1 + ef2;
    while ( ef2 <= limit ) {
      long long int ef3 = 4 * ef2 + ef1;
      if ( ef3 > limit ) break;
      ef1 = ef2;
      ef2 = ef3;
      sum += ef2;
    }
    return sum;
  }