1 files changed, 8 insertions, 0 deletions
diff --git a/src/mongo/db/matcher/expression_algo_test.cpp b/src/mongo/db/matcher/expression_algo_test.cpp
index 68075fbb396..41bbb9b1799 100644
--- a/src/mongo/db/matcher/expression_algo_test.cpp
+++ b/src/mongo/db/matcher/expression_algo_test.cpp
@@ -177,6 +177,14 @@ TEST(ExpressionAlgoIsSubsetOf, CompareAnd_GT) {
     ASSERT_FALSE(expression::isSubsetOf(filter.get(), query.get()));
 }
 
+TEST(ExpressionAlgoIsSubsetOf, CompareAnd_SingleField) {
+    ParsedMatchExpression filter("{a: {$gt: 5, $lt: 7}}");
+    ParsedMatchExpression query("{a: {$gt: 5, $lt: 6}}");
+
+    ASSERT_TRUE(expression::isSubsetOf(query.get(), filter.get()));
+    ASSERT_FALSE(expression::isSubsetOf(filter.get(), query.get()));
+}
+
 TEST(ExpressionAlgoIsSubsetOf, CompareOr_LT) {
     ParsedMatchExpression lt5("{a: {$lt: 5}}");
     ParsedMatchExpression eq2OrEq3("{$or: [{a: 2}, {a: 3}]}");