test: add test case for oiiotool --layersplit command

Signed-off-by: Loïc Vital <[email protected]>

Author: mugulmd

src/cmake/testing.cmake

@@ -141,6 +141,7 @@ macro (oiio_add_all_tests)
                     oiiotool-copy
                     oiiotool-demosaic
                     oiiotool-fixnan
+                    oiiotool-layers
                     oiiotool-pattern
                     oiiotool-readerror
                     oiiotool-subimage

testsuite/oiiotool-layers/ref/out.txt

@@ -0,0 +1,2 @@
+Comparing "parts.exr" and "ref/parts.exr"
+PASS

testsuite/oiiotool-layers/ref/parts.exr

@@ -0,0 +1,17 @@
+#!/usr/bin/env python
+
+# Copyright Contributors to the OpenImageIO project.
+# SPDX-License-Identifier: Apache-2.0
+# https://github.com/AcademySoftwareFoundation/OpenImageIO
+
+
+# Test for oiiotool channel-name-based layer splitting
+#
+
+
+# test --layersplit
+command += oiiotool ("src/layers.exr --layersplit --siappendall -o parts.exr")
+
+# Outputs to check against references
+outputs = [ "parts.exr", "out.txt" ]
+