Add additional cases for before/after queries

The doc [1] says, that both predicates are inclusive, however gerrit
doesn't have test cases for exact values.

[1] https://gerrit-review.googlesource.com/Documentation/user-search.html#search-operators

Change-Id: Ib7550c6c31bc9a08aacdd15b27fea014d12bc62b
diff --git a/javatests/com/google/gerrit/server/query/change/AbstractQueryChangesTest.java b/javatests/com/google/gerrit/server/query/change/AbstractQueryChangesTest.java
index 9ebee9c..65b725b 100644
--- a/javatests/com/google/gerrit/server/query/change/AbstractQueryChangesTest.java
+++ b/javatests/com/google/gerrit/server/query/change/AbstractQueryChangesTest.java
@@ -1726,6 +1726,8 @@
       assertQuery(predicate + "\"2009-10-01 21:02:00\"", change1);
       assertQuery(predicate + "2009-10-01", change1);
       assertQuery(predicate + "2009-10-03", change2, change1);
+      assertQuery(predicate + "\"2009-09-30 21:00:00 -0000\"", change1);
+      assertQuery(predicate + "\"2009-10-02 03:00:00 -0000\"", change2, change1);
     }
 
     // Same test as above, but using filter code path.
@@ -1742,6 +1744,12 @@
       assertQuery(makeIndexedPredicateFilterQuery(predicate + "\"2009-10-01 21:02:00\""), change1);
       assertQuery(makeIndexedPredicateFilterQuery(predicate + "2009-10-01"), change1);
       assertQuery(makeIndexedPredicateFilterQuery(predicate + "2009-10-03"), change2, change1);
+      assertQuery(
+          makeIndexedPredicateFilterQuery(predicate + "\"2009-09-30 21:00:00 -0000\""), change1);
+      assertQuery(
+          makeIndexedPredicateFilterQuery(predicate + "\"2009-10-02 03:00:00 -0000\""),
+          change2,
+          change1);
     }
   }
 
@@ -1763,6 +1771,8 @@
       assertQuery(predicate + "\"2009-10-01 20:59:59 -0000\"", change2);
       assertQuery(predicate + "2009-10-01", change2);
       assertQuery(predicate + "2009-09-30", change2, change1);
+      assertQuery(predicate + "\"2009-09-30 21:00:00 -0000\"", change2, change1);
+      assertQuery(predicate + "\"2009-10-02 03:00:00 -0000\"", change2);
     }
 
     // Same test as above, but using filter code path.
@@ -1774,6 +1784,12 @@
           makeIndexedPredicateFilterQuery(predicate + "\"2009-10-01 20:59:59 -0000\""), change2);
       assertQuery(makeIndexedPredicateFilterQuery(predicate + "2009-10-01"), change2);
       assertQuery(makeIndexedPredicateFilterQuery(predicate + "2009-09-30"), change2, change1);
+      assertQuery(
+          makeIndexedPredicateFilterQuery(predicate + "\"2009-09-30 21:00:00 -0000\""),
+          change2,
+          change1);
+      assertQuery(
+          makeIndexedPredicateFilterQuery(predicate + "\"2009-10-02 03:00:00 -0000\""), change2);
     }
   }