@Test public void getMaximumNumberOfTradingDaysRequired() { final int daysGradient = 7; final SimpleMovingAverageGradientSignals smaGradient = new SimpleMovingAverageGradientSignals( lookback, daysGradient, GradientType.NEGATIVE, MATH_CONTEXT); assertEquals(lookback + daysGradient, smaGradient.getRequiredNumberOfTradingDays()); }