testing: Add initial OFX credit card import test

internal/handlers/testdata_test.go

@@ -295,6 +295,13 @@ var data = []TestData{
 				Type:            handlers.Expense,
 				Name:            "Expenses",
 			},
+			{
+				UserId:          0,
+				SecurityId:      0,
+				ParentAccountId: -1,
+				Type:            handlers.Liability,
+				Name:            "Credit Card",
+			},
 		},
 		transactions: []handlers.Transaction{
 			{
@@ -462,6 +469,10 @@ end`,
 							},
 						},
 					},
+					"Credit Card": {
+						Values: []float64{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+						Series: map[string]*handlers.Series{},
+					},
 				},
 			},
 		},