diff --git a/tests/unit/collection/test_list_insert.cc b/tests/unit/collection/test_list_insert.cc
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+++ b/tests/unit/collection/test_list_insert.cc
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+/*
+//@HEADER
+// *****************************************************************************
+//
+//                             test_list_insert.cc
+//                       DARMA/vt => Virtual Transport
+//
+// Copyright 2019-2021 National Technology & Engineering Solutions of Sandia, LLC
+// (NTESS). Under the terms of Contract DE-NA0003525 with NTESS, the U.S.
+// Government retains certain rights in this software.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are met:
+//
+// * Redistributions of source code must retain the above copyright notice,
+//   this list of conditions and the following disclaimer.
+//
+// * Redistributions in binary form must reproduce the above copyright notice,
+//   this list of conditions and the following disclaimer in the documentation
+//   and/or other materials provided with the distribution.
+//
+// * Neither the name of the copyright holder nor the names of its
+//   contributors may be used to endorse or promote products derived from this
+//   software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+// POSSIBILITY OF SUCH DAMAGE.
+//
+// Questions? Contact darma@sandia.gov
+//
+// *****************************************************************************
+//@HEADER
+*/
+
+#include <gtest/gtest.h>
+
+#include "test_parallel_harness.h"
+#include "test_collection_common.h"
+#include "data_message.h"
+
+#include "vt/vrt/collection/manager.h"
+
+#include <cstdint>
+
+namespace vt { namespace tests { namespace unit { namespace list_insert {
+
+using namespace vt;
+using namespace vt::collective;
+using namespace vt::tests::unit;
+
+struct WorkMsg;
+
+static int32_t num_inserted = 0;
+static int32_t num_deleted = 0;
+static int32_t num_work = 0;
+
+struct ListInsertTest : Collection<ListInsertTest,Index1D> {
+  ListInsertTest() {
+    num_inserted++;
+  }
+
+  virtual ~ListInsertTest() {
+    num_deleted++;
+  }
+
+  void work(WorkMsg* msg);
+};
+
+void ListInsertTest::work(WorkMsg* msg) {
+  vt_print(gen, "num_work={}, idx={}\n", num_work, getIndex());
+  num_work++;
+}
+
+struct WorkMsg : CollectionMessage<ListInsertTest> {};
+using ColProxyType = CollectionIndexProxy<ListInsertTest,Index1D>;
+
+struct TestListInsert : TestParallelHarness { };
+
+static constexpr int32_t const num_elms_per_node = 8;
+
+TEST_F(TestListInsert, test_bounded_list_insert_1) {
+  num_inserted = 0;
+  num_work = 0;
+
+  auto const num_nodes = theContext()->getNumNodes();
+
+  auto const range = Index1D(num_nodes * num_elms_per_node);
+  std::vector<Index1D> list_insert;
+  for (int i = 0; i < range.x(); i++) {
+    list_insert.emplace_back(Index1D{i});
+  }
+
+  auto proxy = vt::makeCollection<ListInsertTest>()
+    .collective(true)
+    .bounds(range)
+    .listInsert(list_insert)
+    .wait();
+
+  EXPECT_EQ(num_inserted, num_elms_per_node);
+  num_inserted = 0;
+
+  runInEpochCollective([&]{
+    proxy.broadcast<WorkMsg, &ListInsertTest::work>();
+  });
+  EXPECT_EQ(num_work, num_elms_per_node * num_nodes);
+}
+
+template <typename IndexT>
+struct MyMapper : vt::mapping::BaseMapper<IndexT> {
+  static vt::ObjGroupProxyType construct() {
+    return vt::theObjGroup()->makeCollective<MyMapper<IndexT>>().getProxy();
+  }
+
+  vt::NodeType map(IndexT* idx, int ndim, vt::NodeType num_nodes) override {
+    return idx->x() % num_nodes;
+  }
+};
+
+TEST_F(TestListInsert, test_unbounded_list_insert_2) {
+  num_inserted = 0;
+  num_work = 0;
+
+  auto const num_nodes = theContext()->getNumNodes();
+
+  auto const range = Index1D(num_nodes * num_elms_per_node);
+  std::vector<Index1D> list_insert;
+  for (int i = 0; i < range.x(); i++) {
+    list_insert.emplace_back(Index1D{i});
+  }
+
+  auto proxy = vt::makeCollection<ListInsertTest>()
+    .collective(true)
+    .listInsert(list_insert)
+    .template mapperObjGroupConstruct<MyMapper<Index1D>>()
+    .wait();
+
+  EXPECT_EQ(num_inserted, num_elms_per_node);
+  num_inserted = 0;
+
+  runInEpochCollective([&]{
+    proxy.broadcast<WorkMsg, &ListInsertTest::work>();
+  });
+  EXPECT_EQ(num_work, num_elms_per_node * num_nodes);
+}
+
+TEST_F(TestListInsert, test_bounded_list_insert_here_3) {
+  num_inserted = 0;
+  num_work = 0;
+
+  auto const num_nodes = theContext()->getNumNodes();
+
+  auto const range = Index1D(num_nodes * num_elms_per_node);
+
+  std::vector<std::tuple<vt::Index1D, std::unique_ptr<ListInsertTest>>> elms;
+
+  for (int i = 0; i < range.x(); i++) {
+    if (i % num_nodes == 0) {
+      Index1D ix{i};
+      elms.emplace_back(
+        std::make_tuple(ix, std::make_unique<ListInsertTest>())
+      );
+    }
+  }
+
+  auto proxy = vt::makeCollection<ListInsertTest>()
+    .collective(true)
+    .bounds(range)
+    .listInsertHere(std::move(elms))
+    .wait();
+
+  EXPECT_EQ(num_inserted, num_elms_per_node);
+  num_inserted = 0;
+
+  runInEpochCollective([&]{
+    proxy.broadcast<WorkMsg, &ListInsertTest::work>();
+  });
+  EXPECT_EQ(num_work, num_elms_per_node * num_nodes);
+}
+
+TEST_F(TestListInsert, test_unbounded_list_insert_here_4) {
+  num_inserted = 0;
+  num_work = 0;
+
+  auto const num_nodes = theContext()->getNumNodes();
+
+  auto const range = Index1D(num_nodes * num_elms_per_node);
+
+  std::vector<std::tuple<vt::Index1D, std::unique_ptr<ListInsertTest>>> elms;
+
+  for (int i = 0; i < range.x(); i++) {
+    if (i % num_nodes == 0) {
+      Index1D ix{i};
+      elms.emplace_back(
+        std::make_tuple(ix, std::make_unique<ListInsertTest>())
+      );
+    }
+  }
+
+  auto proxy = vt::makeCollection<ListInsertTest>()
+    .collective(true)
+    .listInsertHere(std::move(elms))
+    .template mapperObjGroupConstruct<MyMapper<Index1D>>()
+    .wait();
+
+  EXPECT_EQ(num_inserted, num_elms_per_node);
+  num_inserted = 0;
+
+  runInEpochCollective([&]{
+    proxy.broadcast<WorkMsg, &ListInsertTest::work>();
+  });
+  EXPECT_EQ(num_work, num_elms_per_node * num_nodes);
+}
+
+}}}} // end namespace vt::tests::unit::list_insert