public void yValue() { for (int i = 0; i < NB_X_SAMPLE; i++) { double yComputed = ADD_FIXED_CURVE.yValue(X_SAMPLE[i]); double yExpected = FIXED_CURVE.yValue(X_SAMPLE[i]) + SPREAD_CURVE.yValue(X_SAMPLE[i]); assertEquals(yComputed, yExpected, TOLERANCE_Y); } }