Merge branch 'blender-v5.1-release'

tests/python/CMakeLists.txt

@@ -943,6 +943,15 @@ if((WITH_CYCLES OR WITH_GPU_RENDER_TESTS) AND TEST_SRC_DIR_EXISTS)
   endif()
 endif()
 
+if(WITH_CYCLES AND WITH_CYCLES_OSL)
+  add_blender_test(
+    cycles_osl_compile_test
+    --python ${CMAKE_CURRENT_LIST_DIR}/cycles_osl_compile_test.py
+    --
+    --testdir "${TEST_SRC_DIR}/render"
+  )
+endif()
+
 # ------------------------------------------------------------------------------
 # COMPOSITOR TESTS
 # ------------------------------------------------------------------------------

tests/python/cycles_osl_compile_test.py

@@ -0,0 +1,68 @@
+# SPDX-FileCopyrightText: 2015-2026 Blender Authors
+#
+# SPDX-License-Identifier: Apache-2.0
+
+import sys
+import tempfile
+import unittest
+
+from pathlib import Path
+
+import bpy
+import _cycles
+
+args = None
+
+
+class AbstractOSLCompileTest(unittest.TestCase):
+    @classmethod
+    def setUpClass(cls):
+        cls._tempdir = tempfile.TemporaryDirectory()
+        cls.testdir = args.testdir
+        cls.tempdir = Path(cls._tempdir.name)
+
+    def setUp(self):
+        self.assertTrue(self.testdir.exists(), "Test dir {0} should exist".format(self.testdir))
+
+    def tearDown(self):
+        self._tempdir.cleanup()
+
+
+class OSLCompileTest(AbstractOSLCompileTest):
+    def test_compile_simple(self):
+        input_file = self.tempdir / "input.osl"
+        output_file = self.tempdir / "output.oso"
+
+        input_file.write_text("""
+shader basic_shader(
+    float in_float = 1.0,
+    color in_color = color(1.0, 1.0, 1.0),
+    output float out_float = 0.0,
+    output color out_color = color(0.0, 0.0, 0.0)
+    )
+{
+    out_float = in_float * 2.0;
+    out_color = in_color * 2.0;
+}""")
+
+        self.assertTrue(_cycles.osl_compile(str(input_file), str(output_file)))
+
+
+def main():
+    global args
+    import argparse
+
+    if "--" in sys.argv:
+        argv = [sys.argv[0]] + sys.argv[sys.argv.index("--") + 1:]
+    else:
+        argv = sys.argv
+
+    parser = argparse.ArgumentParser()
+    parser.add_argument("--testdir", required=True, type=Path)
+    args, remaining = parser.parse_known_args(argv)
+
+    unittest.main(argv=remaining, verbosity=0)
+
+
+if __name__ == "__main__":
+    main()