1 files changed, 72 insertions, 0 deletions
diff --git a/pw_protobuf_compiler/nested_packages_test.cc b/pw_protobuf_compiler/nested_packages_test.cc
new file mode 100644
index 000000000..1b1dff592
--- /dev/null
+++ b/pw_protobuf_compiler/nested_packages_test.cc
@@ -0,0 +1,72 @@
+// Copyright 2022 The Pigweed Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License"); you may not
+// use this file except in compliance with the License. You may obtain a copy of
+// the License at
+//
+//     https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+// License for the specific language governing permissions and limitations under
+// the License.
+
+#include "gtest/gtest.h"
+#include "proto_root/aggregate.pwpb.h"
+#include "proto_root/aggregate_wrapper.pwpb.h"
+#include "proto_root/data_type/id/id.pwpb.h"
+#include "proto_root/data_type/thing/thing.pwpb.h"
+#include "proto_root/data_type/thing/type_of_thing.pwpb.h"
+
+namespace pw::protobuf_compiler {
+namespace {
+
+TEST(NestedPackages, CompilesProtobufs) {
+  using Aggregate = proto_root::pwpb::Aggregate::Message;
+  using AggregateWrapper = proto_root::pwpb::AggregateWrapper::Message;
+  using Id = proto_root::data_type::id::pwpb::Id::Message;
+  using Thing = proto_root::data_type::thing::pwpb::Thing::Message;
+  using proto_root::data_type::thing::pwpb::TypeOfThing;
+
+  AggregateWrapper wrapper = {
+      Id{0u, {1, 2}},
+      TypeOfThing::kOther,
+
+      Aggregate{
+          Id{1u, {2, 3}},
+          TypeOfThing::kOther,
+
+          Thing{Id{2u, {3, 4}}, TypeOfThing::kOrganism},
+          Thing{Id{3u, {4, 5}}, TypeOfThing::kSubstance},
+          Thing{Id{4u, {5, 6}}, TypeOfThing::kObject},
+      }};
+
+  EXPECT_EQ(wrapper.id.id, 0u);
+  EXPECT_EQ(wrapper.id.impl.foo, 1);
+  EXPECT_EQ(wrapper.id.impl.bar, 2);
+  EXPECT_EQ(wrapper.type, TypeOfThing::kOther);
+
+  EXPECT_EQ(wrapper.aggregate.id.id, 1u);
+  EXPECT_EQ(wrapper.aggregate.id.impl.foo, 2);
+  EXPECT_EQ(wrapper.aggregate.id.impl.bar, 3);
+  EXPECT_EQ(wrapper.aggregate.type, TypeOfThing::kOther);
+
+  EXPECT_EQ(wrapper.aggregate.alice.id.id, 2u);
+  EXPECT_EQ(wrapper.aggregate.alice.id.impl.foo, 3);
+  EXPECT_EQ(wrapper.aggregate.alice.id.impl.bar, 4);
+  EXPECT_EQ(wrapper.aggregate.alice.type, TypeOfThing::kOrganism);
+
+  EXPECT_EQ(wrapper.aggregate.neodymium.id.id, 3u);
+  EXPECT_EQ(wrapper.aggregate.neodymium.id.impl.foo, 4);
+  EXPECT_EQ(wrapper.aggregate.neodymium.id.impl.bar, 5);
+  EXPECT_EQ(wrapper.aggregate.neodymium.type, TypeOfThing::kSubstance);
+
+  EXPECT_EQ(wrapper.aggregate.mountain.id.id, 4u);
+  EXPECT_EQ(wrapper.aggregate.mountain.id.impl.foo, 5);
+  EXPECT_EQ(wrapper.aggregate.mountain.id.impl.bar, 6);
+  EXPECT_EQ(wrapper.aggregate.mountain.type, TypeOfThing::kObject);
+}
+
+}  // namespace
+}  // namespace pw::protobuf_compiler