From 92176fce6e122994337da6794f405d09d74e2189 Mon Sep 17 00:00:00 2001
From: "Chris M. Hostetter" <hossman@apache.org>
Date: Thu, 13 Dec 2012 20:38:52 +0000
Subject: [PATCH] grouping tests of case where no docs match main query. 
 written while trying to repro SOLR-4164, but something is still missing

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1421505 13f79535-47bb-0310-9956-ffa450edef68
---
 .../apache/solr/TestDistributedGrouping.java  | 12 ++++++++
 .../org/apache/solr/TestGroupingSearch.java   | 28 +++++++++++++++++++
 2 files changed, 40 insertions(+)

diff --git a/solr/core/src/test/org/apache/solr/TestDistributedGrouping.java b/solr/core/src/test/org/apache/solr/TestDistributedGrouping.java
index 6ee40a28e67..8d4ffcda716 100755
--- a/solr/core/src/test/org/apache/solr/TestDistributedGrouping.java
+++ b/solr/core/src/test/org/apache/solr/TestDistributedGrouping.java
@@ -175,6 +175,18 @@ public class TestDistributedGrouping extends BaseDistributedSearchTestCase {
           "group.query", t1 + ":this_will_never_match",
           "group.limit", 10, "sort", i1 + " asc, id asc");
 
+    // SOLR-4164: main query matches nothing, or only matches on one shard
+    query("q", "bogus_s:nothing", // no docs match
+          "group", "true", 
+          "group.query", t1 + ":this_will_never_match",
+          "group.field", i1, 
+          "fl", "id", "group.limit", "2", "group.format", "simple");
+    query("q", "id:5", // one doc matches, so only one shard
+          "rows", 100, "fl", "id," + i1, "group", "true", 
+          "group.query", t1 + ":kings OR " + t1 + ":eggs", 
+          "group.field", i1,
+          "group.limit", 10, "sort", i1 + " asc, id asc");
+
     // SOLR-3109
     query("q", t1 + ":eggs", "rows", 100, "fl", "id," + i1, "group", "true", "group.field", i1, "group.limit", 10, "sort", tlong + " asc, id asc");
     query("q", i1 + ":232", "rows", 100, "fl", "id," + i1, "group", "true", "group.field", i1, "group.limit", 10, "sort", tlong + " asc, id asc");
diff --git a/solr/core/src/test/org/apache/solr/TestGroupingSearch.java b/solr/core/src/test/org/apache/solr/TestGroupingSearch.java
index d902474e898..98c6ebee779 100644
--- a/solr/core/src/test/org/apache/solr/TestGroupingSearch.java
+++ b/solr/core/src/test/org/apache/solr/TestGroupingSearch.java
@@ -585,6 +585,34 @@ public class TestGroupingSearch extends SolrTestCaseJ4 {
         , "/grouped/foo_i=={'matches':10,'doclist':"
         + "{'numFound':10,'start':1,'docs':[{'id':'10'},{'id':'3'},{'id':'6'}]}}"
     );
+
+    //////////////////////// grouping where main query matches nothing
+    assertJQ(req("fq", filt, "q", "bogus_s:nothing", "group", "true", "group.field", f, "fl", "id", "group.limit", "2", "group.format", "simple")
+        , "/grouped/foo_i=={'matches':0,'doclist':{'numFound':0,'start':0,'docs':[]}}"
+    );
+    assertJQ(req("fq",filt,  "q","bogus_s:nothing", "group","true",
+        "group.query","id:[2 TO 5]",
+        "group.query","id:[5 TO 5]",
+        "group.field",f,
+        "rows","1",
+        "fl","id", "group.limit","2")
+       ,"/grouped/id:[2 TO 5]=={'matches':0,'doclist':{'numFound':0,'start':0,'docs':[]}}"
+       ,"/grouped/id:[5 TO 5]=={'matches':0,'doclist':{'numFound':0,'start':0,'docs':[]}}"        
+       ,"/grouped/"+f+"=={'matches':0,'groups':[]}"
+    );
+    assertJQ(req("fq",filt,  
+                 "q","bogus_s:nothing", 
+                 "group","true", 
+                 "group.query","id:[2 TO 5]", 
+                 "group.query","id:1000", 
+                 "fl","id", 
+                 "group.limit","3")
+             ,"/grouped/id:[2 TO 5]=={'matches':0,'doclist':{'numFound':0,'start':0,'docs':[]}}"
+             ,"/grouped/id:1000=={'matches':0,'doclist':{'numFound':0,'start':0,'docs':[]}}"
+    );
+
+
+
   }