Skip MemoryAllocatorTest in LITE mode (#9318)

Summary:
The tests rely on `CreateFromString()`, which returns
`Status::NotSupported()` when these tests attempt to create non-default
allocators.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/9318

Reviewed By: riversand963

Differential Revision: D33238405

Pulled By: ajkr

fbshipit-source-id: d2974e2341f1494f5f7cd07b73f2dbd0d502fc7c

memory/memory_allocator_test.cc

@@ -17,6 +17,11 @@
 #include "utilities/memory_allocators.h"
 
 namespace ROCKSDB_NAMESPACE {
+
+// TODO: the tests do not work in LITE mode due to relying on
+// `CreateFromString()` to create non-default memory allocators.
+#ifndef ROCKSDB_LITE
+
 class MemoryAllocatorTest
     : public testing::Test,
       public ::testing::WithParamInterface<std::tuple<std::string, bool>> {
@@ -228,6 +233,8 @@ INSTANTIATE_TEST_CASE_P(
                                       JemallocNodumpAllocator::IsSupported())));
 #endif  // ROCKSDB_JEMALLOC
 
+#endif  // ROCKSDB_LITE
+
 }  // namespace ROCKSDB_NAMESPACE
 
 int main(int argc, char** argv) {