1 files changed, 73 insertions, 0 deletions
diff --git a/searchlib/src/tests/memoryindex/field_index/field_index_iterator_test.cpp b/searchlib/src/tests/memoryindex/field_index/field_index_iterator_test.cpp
new file mode 100644
index 00000000000..df7f80e8601
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+++ b/searchlib/src/tests/memoryindex/field_index/field_index_iterator_test.cpp
@@ -0,0 +1,73 @@
+// Copyright 2019 Oath Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+
+#include <vespa/searchcommon/common/schema.h>
+#include <vespa/searchlib/memoryindex/field_index.h>
+#include <vespa/searchlib/memoryindex/posting_iterator.h>
+#include <vespa/searchlib/test/memoryindex/wrap_inserter.h>
+#include <vespa/searchlib/test/searchiteratorverifier.h>
+#include <vespa/vespalib/testkit/testapp.h>
+
+#include <vespa/log/log.h>
+LOG_SETUP("field_index_iterator_test");
+
+using namespace search::fef;
+using namespace search::index;
+using namespace search::memoryindex::test;
+using namespace search::memoryindex;
+
+using search::index::schema::DataType;
+using search::test::SearchIteratorVerifier;
+
+class Verifier : public SearchIteratorVerifier {
+private:
+    mutable TermFieldMatchData _tfmd;
+    FieldIndex _field_index;
+
+public:
+    Verifier(const Schema& schema)
+        : _tfmd(),
+          _field_index(schema, 0)
+    {
+        WrapInserter inserter(_field_index);
+        inserter.word("a");
+        for (uint32_t docId : getExpectedDocIds()) {
+            inserter.add(docId);
+        }
+        inserter.flush();
+    }
+    ~Verifier() {}
+
+    SearchIterator::UP create(bool strict) const override {
+        (void) strict;
+        TermFieldMatchDataArray match_data;
+        match_data.add(&_tfmd);
+        return std::make_unique<PostingIterator>(_field_index.find("a"),
+                                                 _field_index.getFeatureStore(), 0, match_data);
+    }
+};
+
+Schema
+get_schema()
+{
+    Schema result;
+    result.addIndexField(Schema::IndexField("f0", DataType::STRING));
+    return result;
+}
+
+struct Fixture {
+    Schema schema;
+    Verifier verifier;
+    Fixture()
+        : schema(get_schema()),
+          verifier(schema)
+    {
+    }
+};
+
+TEST_F("require that posting iterator conforms", Fixture)
+{
+    f.verifier.verify();
+}
+
+TEST_MAIN() { TEST_RUN_ALL(); }
+