diff --git a/invoice/src/test/java/com/ning/billing/invoice/model/TestInAdvanceBillingMode.java b/invoice/src/test/java/com/ning/billing/invoice/model/TestInAdvanceBillingMode.java
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+/*
+ * Copyright 2010-2012 Ning, Inc.
+ *
+ * Ning licenses this file to you under the Apache License, version 2.0
+ * (the "License"); you may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ */
+
+package com.ning.billing.invoice.model;
+
+import java.math.BigDecimal;
+import java.util.List;
+
+import org.joda.time.DateTimeZone;
+import org.joda.time.LocalDate;
+import org.testng.Assert;
+import org.testng.annotations.Test;
+
+import com.ning.billing.catalog.api.BillingPeriod;
+
+public class TestInAdvanceBillingMode {
+
+ @Test(groups = "fast")
+ public void testCalculateSimpleInvoiceItem() throws Exception {
+ final InAdvanceBillingMode billingMode = new InAdvanceBillingMode();
+ final LocalDate startDate = new LocalDate(2012, 7, 16);
+ final LocalDate endDate = new LocalDate(2012, 8, 16);
+ final LocalDate targetDate = new LocalDate(2012, 7, 16);
+ final DateTimeZone dateTimeZone = DateTimeZone.forID("Pacific/Pitcairn");
+ final int billingCycleDayLocal = 16;
+ final BillingPeriod billingPeriod = BillingPeriod.MONTHLY;
+
+ final List<RecurringInvoiceItemData> invoiceItems = billingMode.calculateInvoiceItemData(startDate, endDate, targetDate, dateTimeZone, billingCycleDayLocal, billingPeriod);
+ Assert.assertEquals(invoiceItems.size(), 1);
+ Assert.assertEquals(invoiceItems.get(0).getStartDate(), startDate);
+ Assert.assertEquals(invoiceItems.get(0).getEndDate(), endDate);
+ Assert.assertEquals(invoiceItems.get(0).getNumberOfCycles(), BigDecimal.ONE);
+ }
+}
