LocalDnsHelper adds the default change upon creating a zone.

This now matches the behaviour of the service. Fixes #672.

Author: mderka

gcloud-java-dns/src/main/java/com/google/gcloud/dns/testing/LocalDnsHelper.java

@@ -56,6 +56,7 @@
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.HashMap;
+import java.util.Iterator;
 import java.util.LinkedList;
 import java.util.List;
 import java.util.Map;
@@ -680,7 +681,15 @@ Response createZone(String projectId, ManagedZone zone, String... fields) {
     completeZone.setId(BigInteger.valueOf(Math.abs(ID_GENERATOR.nextLong() % Long.MAX_VALUE)));
     completeZone.setNameServers(randomNameservers());
     ZoneContainer zoneContainer = new ZoneContainer(completeZone);
-    zoneContainer.dnsRecords().set(defaultRecords(completeZone));
+    ImmutableSortedMap<String, ResourceRecordSet> defaultsRecords = defaultRecords(completeZone);
+    zoneContainer.dnsRecords().set(defaultsRecords);
+    Change change = new Change();
+    change.setAdditions(ImmutableList.copyOf(defaultsRecords.values()));
+    change.setStatus("done");
+    change.setId("0");
+    change.setStartTime(ISODateTimeFormat.dateTime().withZoneUTC()
+        .print(System.currentTimeMillis()));
+    zoneContainer.changes().add(change);
     ProjectContainer projectContainer = findProject(projectId);
     ZoneContainer oldValue = projectContainer.zones().putIfAbsent(
         completeZone.getName(), zoneContainer);
@@ -718,8 +727,9 @@ Response createChange(String projectId, String zoneName, Change change, String..
       completeChange.setDeletions(ImmutableList.copyOf(change.getDeletions()));
     }
     /* We need to set ID for the change. We are working in concurrent environment. We know that the
-    element fell on an index between 0 and maxId, so we will reset all IDs in this range (all of
-    them are valid for the respective objects). */
+    element fell on an index between 1 and maxId (index 0 is the default change which creates SOA
+    and NS), so we will reset all IDs between 0 and maxId (all of them are valid for the respective
+    objects). */
     ConcurrentLinkedQueue<Change> changeSequence = zoneContainer.changes();
     changeSequence.add(completeChange);
     int maxId = changeSequence.size();
@@ -728,7 +738,7 @@ Response createChange(String projectId, String zoneName, Change change, String..
       if (index == maxId) {
         break;
       }
-      c.setId(String.valueOf(++index));
+      c.setId(String.valueOf(index++));
     }
     completeChange.setStatus("pending");
     completeChange.setStartTime(ISODateTimeFormat.dateTime().withZoneUTC()

gcloud-java-dns/src/test/java/com/google/gcloud/dns/testing/LocalDnsHelperTest.java

@@ -850,14 +850,14 @@ public void testListChanges() {
     RPC.create(ZONE1, EMPTY_RPC_OPTIONS);
     Iterable<Change> results = RPC.listChangeRequests(ZONE1.getName(), EMPTY_RPC_OPTIONS).results();
     ImmutableList<Change> changes = ImmutableList.copyOf(results);
-    assertEquals(0, changes.size());
+    assertEquals(1, changes.size());
     // zone has changes
     RPC.applyChangeRequest(ZONE1.getName(), CHANGE1, EMPTY_RPC_OPTIONS);
     RPC.applyChangeRequest(ZONE1.getName(), CHANGE2, EMPTY_RPC_OPTIONS);
     RPC.applyChangeRequest(ZONE1.getName(), CHANGE_KEEP, EMPTY_RPC_OPTIONS);
     results = RPC.listChangeRequests(ZONE1.getName(), EMPTY_RPC_OPTIONS).results();
     changes = ImmutableList.copyOf(results);
-    assertEquals(3, changes.size());
+    assertEquals(4, changes.size());
     // error in options
     Map<DnsRpc.Option, Object> options = new HashMap<>();
     options.put(DnsRpc.Option.PAGE_SIZE, 0);
@@ -881,14 +881,14 @@ public void testListChanges() {
     options.put(DnsRpc.Option.PAGE_SIZE, 15);
     results = RPC.listChangeRequests(ZONE1.getName(), options).results();
     changes = ImmutableList.copyOf(results);
-    assertEquals(3, changes.size());
+    assertEquals(4, changes.size());
     options = new HashMap<>();
     options.put(DnsRpc.Option.SORTING_ORDER, "descending");
     results = RPC.listChangeRequests(ZONE1.getName(), options).results();
     ImmutableList<Change> descending = ImmutableList.copyOf(results);
     results = RPC.listChangeRequests(ZONE1.getName(), EMPTY_RPC_OPTIONS).results();
     ImmutableList<Change> ascending = ImmutableList.copyOf(results);
-    int size = 3;
+    int size = 4;
     assertEquals(size, descending.size());
     for (int i = 0; i < size; i++) {
       assertEquals(descending.get(i), ascending.get(size - i - 1));