diff options
Diffstat (limited to 'src/mongo/db/exec/projection_executor_test.cpp')
-rw-r--r-- | src/mongo/db/exec/projection_executor_test.cpp | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/mongo/db/exec/projection_executor_test.cpp b/src/mongo/db/exec/projection_executor_test.cpp index 7d3b7410205..a1ac7467510 100644 --- a/src/mongo/db/exec/projection_executor_test.cpp +++ b/src/mongo/db/exec/projection_executor_test.cpp @@ -176,4 +176,11 @@ TEST_F(ProjectionExecutorTest, CanProjectFindSliceAndPositional) { Document{fromjson("{a: {b: [2,3]}, c: [6]}")}, executor->applyTransformation(Document{fromjson("{a: {b: [1,2,3,4]}, c: [5,6,7]}")})); } + +TEST_F(ProjectionExecutorTest, ExecutorOptimizesExpression) { + auto proj = parseWithDefaultPolicies(fromjson("{a: 1, b: {$add: [1, 2]}}")); + auto executor = buildProjectionExecutor(getExpCtx(), &proj, {}); + ASSERT_DOCUMENT_EQ(Document{fromjson("{_id: true, a: true, b: {$const: 3}}")}, + executor->serializeTransformation(boost::none)); +} } // namespace mongo::projection_executor |