Add test to verify setting of SemaphoreKey and MutexName fields in DSL

sdk/python/kfp/compiler/compiler_test.py

@@ -3847,6 +3847,42 @@ def outer():
                 foo_platform_set_bar_feature(task, 12)
 
 
+class TestPipelineSemaphoreMutex(unittest.TestCase):
+
+    def test_pipeline_with_semaphore_and_mutex(self):
+        from kfp import compiler
+        from kfp import dsl
+        from kfp.dsl.pipeline_config import PipelineConfig
+
+        config = PipelineConfig()
+        config.set_semaphore_key('semaphore')
+        config.set_mutex_name('mutex')
+
+        @dsl.pipeline(pipeline_config=config)
+        def my_pipeline():
+            task = comp()
+
+        with tempfile.TemporaryDirectory() as tempdir:
+            output_yaml = os.path.join(tempdir, 'pipeline.yaml')
+            compiler.Compiler().compile(
+                pipeline_func=my_pipeline, package_path=output_yaml)
+
+            with open(output_yaml, 'r') as f:
+                pipeline_docs = list(yaml.safe_load_all(f))
+
+        pipeline_spec = None
+        for doc in pipeline_docs:
+            if 'platforms' in doc:
+                pipeline_spec = doc
+                break
+
+        if pipeline_spec:
+            kubernetes_spec = pipeline_spec['platforms']['kubernetes'][
+                'pipelineConfig']
+            assert kubernetes_spec['semaphoreKey'] == 'semaphore'
+            assert kubernetes_spec['mutexName'] == 'mutex'
+
+
 class ExtractInputOutputDescription(unittest.TestCase):
 
     def test_no_descriptions(self):