Merge pull request #456 from albertotn/issue367

Issue367

src/test/java/com/cronutils/Issue367Test.java

@@ -0,0 +1,63 @@
+/*
+ * Copyright 2015 jmrozanec
+ * Licensed 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.cronutils;
+
+import static org.junit.Assert.assertTrue;
+
+import java.text.ParseException;
+import java.time.ZoneId;
+import java.time.ZonedDateTime;
+import java.time.format.DateTimeFormatter;
+import java.util.Date;
+import java.util.TimeZone;
+
+import org.junit.Before;
+import org.junit.Test;
+
+import com.cronutils.model.Cron;
+import com.cronutils.model.CronType;
+import com.cronutils.model.definition.CronDefinitionBuilder;
+import com.cronutils.parser.CronParser;
+
+/**
+ * Provide an example on how convert a cron expression to ISO8601
+ */
+public class Issue367Test {
+
+	private CronParser parser;
+
+	@Before
+	public void setUp() {
+		parser = new CronParser(CronDefinitionBuilder.instanceDefinitionFor(CronType.QUARTZ));
+	}
+
+	@Test
+	public void testCase1() throws ParseException {
+		// set base data
+		final ZoneId zone = ZoneId.of("Europe/Berlin");
+		final Date date = new Date();
+		final String cronExpression = "0 0 1 1 1 ?";
+		// build cron
+		Cron cron = parser.parse(cronExpression);
+		// convert to quartz
+		final org.quartz.CronExpression quartzExpression = new org.quartz.CronExpression(cron.asString());
+		quartzExpression.setTimeZone(TimeZone.getTimeZone(zone));
+		// get date and convert to ISO8601
+		final Date quartzNextTime = quartzExpression.getNextValidTimeAfter(Date.from(date.toInstant()));// 2016-12-24T00:00:00Z
+		ZonedDateTime d = ZonedDateTime.ofInstant(quartzNextTime.toInstant(), zone);
+		String res = DateTimeFormatter.ISO_DATE_TIME.format(d);
+		assertTrue(res.equals("2021-01-01T01:00:00+01:00[Europe/Berlin]"));
+	}
+
+}