TEST(QueryProjectionTest, ExclusionProjectionDoesNotPreserveParent) {
    auto proj = createProjection("{}", "{'a.b': 0}");
    ASSERT_FALSE(proj.isFieldRetainedExactly("a"));
}
TEST(QueryProjectionTest, ExclusionProjectionDoesNotPreserveParent) {
    auto proj = createProjection("{}", "{'a.b': 0}");
    ASSERT_FALSE(proj.isFieldRetainedExactly("a"));
}