From d2603bedd533b7514fb94ee1a9fdf5581d1642c7 Mon Sep 17 00:00:00 2001
From: Jesse Glick <jglick@cloudbees.com>
Date: Wed, 3 Apr 2013 11:51:21 -0400
Subject: [PATCH] Verifying that repeating hash syntax does something useful.
 http://stackoverflow.com/questions/11896675/can-i-make-the-scm-polling-interval-for-jenkins-randomised/11898132#11898132

---
 .../src/test/java/hudson/scheduler/CronTabTest.java | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/core/src/test/java/hudson/scheduler/CronTabTest.java b/core/src/test/java/hudson/scheduler/CronTabTest.java
index 388784b141..a282c39a7e 100644
--- a/core/src/test/java/hudson/scheduler/CronTabTest.java
+++ b/core/src/test/java/hudson/scheduler/CronTabTest.java
@@ -25,6 +25,7 @@ package hudson.scheduler;
 
 import antlr.ANTLRException;
 import java.text.DateFormat;
+import java.util.ArrayList;
 import java.util.Calendar;
 import java.util.GregorianCalendar;
 import java.util.Locale;
@@ -35,6 +36,7 @@ import org.jvnet.hudson.test.Bug;
 import org.jvnet.hudson.test.Url;
 
 import static java.util.Calendar.MONDAY;
+import java.util.List;
 
 /**
  * @author Kohsuke Kawaguchi
@@ -264,4 +266,15 @@ public class CronTabTest {
         }
     }
 
+    @Test public void repeatedHash() throws Exception {
+        CronTabList tabs = CronTabList.create("H * * * *\nH * * * *", Hash.from("seed"));
+        List<Integer> times = new ArrayList<Integer>();
+        for (int i = 0; i < 60; i++) {
+            if (tabs.check(new GregorianCalendar(2013, 3, 3, 11, i, 0))) {
+                times.add(i);
+            }
+        }
+        assertEquals("[35, 56]", times.toString());
+    }
+
 }
-- 
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