Fixed that credit card transactions list may is empty

fints4k/src/commonMain/kotlin/net/dankito/banking/fints/response/ResponseParser.kt

@@ -685,7 +685,7 @@ open class ResponseParser(
 
     protected open fun parseCreditCardTransactions(segment: String, dataElementGroups: List<String>): ReceivedCreditCardTransactionsAndBalance {
         val balance = parseBalance(dataElementGroups[3])
-        val transactionsDataElementGroups = dataElementGroups.subList(6, dataElementGroups.size)
+        val transactionsDataElementGroups = if (dataElementGroups.size < 7) listOf() else dataElementGroups.subList(6, dataElementGroups.size)
 
         return ReceivedCreditCardTransactionsAndBalance(
             balance,

fints4k/src/commonTest/kotlin/net/dankito/banking/fints/response/ResponseParserTest.kt

@@ -1119,6 +1119,31 @@ class ResponseParserTest : FinTsTestBase() {
         ?: run { fail("No segment of type ReceivedCreditCardTransactionsAndBalance found in ${result.receivedSegments}") }
     }
 
+    @Test
+    fun parseCreditCardAccountTransactionsWithEmptyTransactionsList() {
+
+        // given
+        val creditCardNumber = "4263540122107989"
+        val balance = "189,5"
+        val otherPartyName = "Bundesanzeiger Verlag Koeln 000"
+        val amount = "6,5"
+
+        // when
+        val result = underTest.parse("DIKKU:7:2:3+$creditCardNumber++C:$balance:EUR:20200923:021612'")
+
+        // then
+        assertSuccessfullyParsedSegment(result, InstituteSegmentId.CreditCardTransactions, 7, 2, 3)
+
+        result.getFirstSegmentById<ReceivedCreditCardTransactionsAndBalance>(InstituteSegmentId.CreditCardTransactions)?.let { segment ->
+            expect(segment.balance.amount.string).toBe(balance)
+            expect(segment.balance.date).toBe(Date(2020, 9, 23))
+            expect(segment.balance.time).notToBeNull()
+
+            expect(segment.transactions).isEmpty()
+        }
+        ?: run { fail("No segment of type ReceivedCreditCardTransactionsAndBalance found in ${result.receivedSegments}") }
+    }
+
     @Test
     fun parseCreditCardAccountTransactionsParameters() {