diff --git a/modules/c++/hdf5.lite/unittests/create_123_barfoo_catdog_cx.m b/modules/c++/hdf5.lite/unittests/create_123_barfoo_catdog_cx.m
new file mode 100644
index 000000000..ef13cd6ec
--- /dev/null
+++ b/modules/c++/hdf5.lite/unittests/create_123_barfoo_catdog_cx.m
@@ -0,0 +1,5 @@
+% https://www.mathworks.com/help/matlab/ref/h5write.html
+h5create('123_barfoo_catdog_cx.h5', '/1/bar/cat/i', [10, 1])
+mydata = rand(10, 1);
+h5write('123_barfoo_catdog_cx.h5', '/1/bar/cat/i', mydata)
+h5disp('123_barfoo_catdog_cx.h5')