Музей невероятно скучных вещей

answer.dart

List<int> removeSmallest(List<int> input){  
  if(input == null || input.length==0){
    return input;
  }  
  
  var minIndex = 0;
  var min = input[0];
  for(var i=1;i<input.length;i++){
    var item = input[i];
    if(item < min){
      min = item;
      minIndex = i;
    }
  }
 
  var result = new List<int>(input.length-1);
  var lastIndex = 0;
    for(var i=0;i<input.length;i++){
      if(i==minIndex){
        continue;
      }
    result[lastIndex]=input[i];
    lastIndex++;
  }
  //copyRange(result, 0, input, 0, minIndex);
  //copyRange(result, minIndex+1, input, minIndex+1, input.length);  
  return result;
}

main.dart

List<int> removeSmallest(List<int> input){
  return [0];  
}
































































































bool hasErrors = false;
List<String> messages = [];

void main() {
  test('[1, 2, 3, 4, 5]', () {
    expect(removeSmallest([1, 2, 3, 4, 5]), equals([2, 3, 4, 5]));
  });
  test('[5, 3, 2, 1, 4]', () {
    expect(removeSmallest([5, 3, 2, 1, 4]), equals([5, 3, 2, 4]));
  });
   test('[2, 2, 1, 2, 1]', () {
    expect(removeSmallest([2, 2, 1, 2, 1]), equals([2, 2, 2, 1]));
  });
   test('[]', () {
    expect(removeSmallest([]), equals([]));
  });
  test('null', () {
    expect(removeSmallest(null), equals(null));
  });
  
  if(!hasErrors ){
     print('💪Tests are passed! \n\n');
  } else {
     print('💩 Tests aren\'t passed! \n\n');
  }
  print(messages.join('\n'));
}

typedef bool Checker(dynamic input);

Checker equals(dynamic input) {
  return (dynamic internalInput) {
    input.toString() == internalInput.toString()
        ? true
        : throw AssertionError('value: $input is not equal: $internalInput');
  };
}

void test(String name, Function input) {
  try {
    input();
    messages.add('✓   $name');
  } catch (e) {
    hasErrors = true;
    if (e is AssertionError) {
      messages.add('✗   $test failed \n      name: $name\n      exception: ${e.message}');
    }
  }
}

void expect(dynamic input, bool validator(dynamic validatorInput)) {
  validator(input);
}