From 41519ce71ca1b9fca34205c2bbd9cc11d56b689e Mon Sep 17 00:00:00 2001
From: Tor Egge <Tor.Egge@oath.com>
Date: Sun, 3 Sep 2017 13:02:29 +0000
Subject: Test that gid mapper can iterate over known gids.

---
 .../gid_to_lid_mapper/gid_to_lid_mapper_test.cpp   | 37 ++++++++++++++++++++++
 1 file changed, 37 insertions(+)

(limited to 'searchcore/src/tests/proton/reference/gid_to_lid_mapper/gid_to_lid_mapper_test.cpp')

diff --git a/searchcore/src/tests/proton/reference/gid_to_lid_mapper/gid_to_lid_mapper_test.cpp b/searchcore/src/tests/proton/reference/gid_to_lid_mapper/gid_to_lid_mapper_test.cpp
index c3181d27bef..5445ba9c585 100644
--- a/searchcore/src/tests/proton/reference/gid_to_lid_mapper/gid_to_lid_mapper_test.cpp
+++ b/searchcore/src/tests/proton/reference/gid_to_lid_mapper/gid_to_lid_mapper_test.cpp
@@ -3,6 +3,7 @@
 #include <vespa/searchcore/proton/bucketdb/bucket_db_owner.h>
 #include <vespa/searchcore/proton/documentmetastore/documentmetastore.h>
 #include <vespa/vespalib/stllike/string.h>
+#include <vespa/vespalib/test/insertion_operators.h>
 #include <vespa/document/base/documentid.h>
 #include <vespa/document/bucket/bucketid.h>
 #include <vespa/searchcore/proton/reference/gid_to_lid_mapper.h>
@@ -40,6 +41,31 @@ void assertLid(const std::unique_ptr<search::IGidToLidMapper> &mapper, const ves
     EXPECT_EQUAL(lid, mapper->mapGidToLid(toGid(docId)));
 }
 
+using GidMap = std::map<GlobalId, uint32_t>;
+
+struct GidCollector : public search::IGidToLidMapperVisitor
+{
+    GidMap &_map;
+    GidCollector(GidMap &map)
+        : IGidToLidMapperVisitor(),
+          _map(map)
+    {
+    }
+    virtual void visit(const document::GlobalId &gid, uint32_t lid) const override { _map.insert(std::make_pair(gid, lid)); }
+};
+
+GidMap collectGids(const std::unique_ptr<search::IGidToLidMapper> &mapper)
+{
+    GidMap result;
+    mapper->foreach(GidCollector(result));
+    return result;
+}
+
+void assertGids(const GidMap &expGids, const GidMap &gids)
+{
+    EXPECT_EQUAL(expGids, gids);
+}
+
 }
 
 struct Fixture
@@ -136,6 +162,17 @@ TEST_F("Test that mapper holds read guard", Fixture)
     TEST_DO(f.assertPut(doc3, 2, 10, 7, [&]() -> auto & { return mapper; }));
 }
 
+TEST_F("Test that gid mapper can iterate over known gids", Fixture)
+{
+    auto factory = f.getGidToLidMapperFactory();
+    auto mapper = factory->getMapper();
+    TEST_DO(assertGids({{toGid(doc1), 4}, {toGid(doc2), 7}}, collectGids(mapper)));
+    f.put(doc3);
+    TEST_DO(assertGids({{toGid(doc1), 4}, {toGid(doc2), 7}, {toGid(doc3), 1}}, collectGids(mapper)));
+    f.remove(4);
+    TEST_DO(assertGids({{toGid(doc2), 7}, {toGid(doc3), 1}}, collectGids(mapper)));
+}
+
 }
 
 TEST_MAIN()
-- 
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