public void WhenInitializedWith_ErrorCodeConstructor()
        {
            var exception = new AlpacaException(_expectedErrorCode);

            Assert.Equal(_expectedErrorCode, exception.AlpacaErrorCode);
        }
        public void WhenInitializedWith_MessageAndErrorCodeAndInnerExceptionConstructor()
        {
            var exception = new AlpacaException("message", _expectedErrorCode, new Exception());

            Assert.Equal(_expectedErrorCode, exception.AlpacaErrorCode);
        }
        public void WhenInitializedWith_MessageConstructor()
        {
            var exception = new AlpacaException("message");

            Assert.Equal(_expectedUnspecifiedError, exception.AlpacaErrorCode);
        }