public void minus() {
CurrencyScenarioArray currencyScenarioArray = CurrencyScenarioArray.of(GBP, DoubleArray.of(1, 2, 3));
CurrencyScenarioArray arrayToSubtract = CurrencyScenarioArray.of(GBP, DoubleArray.of(3, 2, 1));
CurrencyScenarioArray minusArrayResult = currencyScenarioArray.minus(arrayToSubtract);
assertThat(minusArrayResult).isEqualTo(CurrencyScenarioArray.of(GBP, DoubleArray.of(-2, 0, 2)));
CurrencyAmount amountToSubtract = CurrencyAmount.of(Currency.GBP, 2);
CurrencyScenarioArray minusAmountResult = currencyScenarioArray.minus(amountToSubtract);
assertThat(minusAmountResult).isEqualTo(CurrencyScenarioArray.of(GBP, DoubleArray.of(-1, 0, 1)));
}