diff --git a/topics/transformation/xbgf/tests/massage6.baseline b/topics/transformation/xbgf/tests/massage6.baseline
new file mode 100644
index 00000000..5b47057f
--- /dev/null
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@@ -0,0 +1,12 @@
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diff --git a/topics/transformation/xbgf/tests/massage6.bgf b/topics/transformation/xbgf/tests/massage6.bgf
new file mode 100644
index 00000000..cce6130f
--- /dev/null
+++ b/topics/transformation/xbgf/tests/massage6.bgf
@@ -0,0 +1,23 @@
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diff --git a/topics/transformation/xbgf/tests/massage6.xbgf b/topics/transformation/xbgf/tests/massage6.xbgf
new file mode 100644
index 00000000..e546c6fb
--- /dev/null
+++ b/topics/transformation/xbgf/tests/massage6.xbgf
@@ -0,0 +1,32 @@
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