From 8a658fb9ecd48492a5cf6beefad8e691649aaf76 Mon Sep 17 00:00:00 2001
From: Ben Boeckel <ben.boeckel@kitware.com>
Date: Tue, 5 Dec 2023 08:02:51 -0500
Subject: Tests/CXXModules: import from an internal partition

It is reported that MSVC doesn't support the `modname=` syntax in its
`-reference modname=modname.ifc` for internal partitions. Add a test
case.
---
 .../RunCMake/CXXModules/examples/internal-partitions/CMakeLists.txt | 3 ++-
 Tests/RunCMake/CXXModules/examples/internal-partitions/internal.cxx | 6 ++++++
 .../RunCMake/CXXModules/examples/internal-partitions/partition.cxx  | 3 ++-
 3 files changed, 10 insertions(+), 2 deletions(-)
 create mode 100644 Tests/RunCMake/CXXModules/examples/internal-partitions/internal.cxx

diff --git a/Tests/RunCMake/CXXModules/examples/internal-partitions/CMakeLists.txt b/Tests/RunCMake/CXXModules/examples/internal-partitions/CMakeLists.txt
index bf99f7c..ecbae34 100644
--- a/Tests/RunCMake/CXXModules/examples/internal-partitions/CMakeLists.txt
+++ b/Tests/RunCMake/CXXModules/examples/internal-partitions/CMakeLists.txt
@@ -19,7 +19,8 @@ target_sources(internal-partitions
         "${CMAKE_CURRENT_SOURCE_DIR}"
       FILES
         importable.cxx
-        partition.cxx)
+        partition.cxx
+        internal.cxx)
 target_compile_features(internal-partitions PUBLIC cxx_std_20)
 
 add_executable(exe)
diff --git a/Tests/RunCMake/CXXModules/examples/internal-partitions/internal.cxx b/Tests/RunCMake/CXXModules/examples/internal-partitions/internal.cxx
new file mode 100644
index 0000000..1e9d108
--- /dev/null
+++ b/Tests/RunCMake/CXXModules/examples/internal-partitions/internal.cxx
@@ -0,0 +1,6 @@
+export module internal;
+
+export int from_internal()
+{
+  return 0;
+}
diff --git a/Tests/RunCMake/CXXModules/examples/internal-partitions/partition.cxx b/Tests/RunCMake/CXXModules/examples/internal-partitions/partition.cxx
index c828612..3d3d92c 100644
--- a/Tests/RunCMake/CXXModules/examples/internal-partitions/partition.cxx
+++ b/Tests/RunCMake/CXXModules/examples/internal-partitions/partition.cxx
@@ -1,6 +1,7 @@
 module importable:internal_partition;
+import internal;
 
 int from_partition()
 {
-  return 0;
+  return from_internal();
 }
-- 
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