Improve code coverage #60

Author: anjaliguptaz

payments-api/src/test/java/com/intuit/payment/services/CardServiceTest.java

@@ -47,6 +47,12 @@ public void testgetAllCardCountCustomerBlank() throws BaseException {
 	   cardService.getAllCards("", 0);
     }
 
+	@Test(expectedExceptions = IllegalArgumentException.class)
+    public void testgetAllCardCountCustomerNull() throws BaseException {
+       CardService cardService = new CardService();
+	   cardService.getAllCards(null, 0);
+    }
+	
 	@Test(expectedExceptions = IllegalArgumentException.class)
     public void testcreateFromTokenCustomerBlank() throws BaseException {
        CardService cardService = new CardService();