Implement test for insufficient balance in PLN (pass)

CamilYed · Oct 3, 2024 · 43e1820 · 43e1820
1 parent 9f3d9a0
commit 43e1820
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/src/main/kotlin/camilyed/github/io/currencyexchangeapi/domain/Account.kt b/src/main/kotlin/camilyed/github/io/currencyexchangeapi/domain/Account.kt
@@ -19,6 +19,7 @@ class Account(
 
     fun exchangePlnToUsd(amountPln: BigDecimal, exchangeRate: BigDecimal) {
         require(amountPln > BigDecimal.ZERO) { "Amount must be greater than 0" }
+        require(amountPln <= balancePln) { "Insufficient PLN balance" }
         val amountUsd = amountPln.divide(exchangeRate, 2, RoundingMode.HALF_EVEN)
         balancePln = balancePln.subtract(amountPln)
         balanceUsd = balanceUsd.add(amountUsd)