SERVER-24008 validate() should check index is partial before multikey

1 files changed, 8 insertions, 1 deletions

diff --git a/src/mongo/dbtests/validate_tests.cpp b/src/mongo/dbtests/validate_tests.cpp
index 1c32e715510..e1918c758de 100644
--- a/src/mongo/dbtests/validate_tests.cpp
+++ b/src/mongo/dbtests/validate_tests.cpp
@@ -448,7 +448,7 @@ public:
     ValidatePartialIndex() : ValidateBase(true) {}
 
     void run() {
-        // Create a new collection, insert two records and check it's valid.
+        // Create a new collection, insert three records and check it's valid.
         Database* db = _ctx.db();
         OpDebug* const nullOpDebug = nullptr;
         Collection* coll;
@@ -461,6 +461,13 @@ public:
             ASSERT_OK(coll->insertDocument(&_txn, BSON("_id" << 1 << "a" << 1), nullOpDebug, true));
             id1 = coll->getCursor(&_txn)->next()->id;
             ASSERT_OK(coll->insertDocument(&_txn, BSON("_id" << 2 << "a" << 2), nullOpDebug, true));
+            // Explicitly test that multi-key partial indexes containing documents that
+            // don't match the filter expression are handled correctly.
+            ASSERT_OK(coll->insertDocument(
+                &_txn,
+                BSON("_id" << 3 << "a" << BSON_ARRAY(-1 << -2 << -3)),
+                nullOpDebug,
+                true));
             wunit.commit();
         }