adapt to sglang v0.5.2rc1 on dcu

test/lang/test_vertexai_backend.py

@@ -0,0 +1,53 @@
+import unittest
+
+from sglang import VertexAI, set_default_backend
+from sglang.test.test_programs import (
+    test_expert_answer,
+    test_few_shot_qa,
+    test_image_qa,
+    test_mt_bench,
+    test_parallel_decoding,
+    test_parallel_encoding,
+    test_stream,
+)
+from sglang.test.test_utils import CustomTestCase
+
+
+class TestVertexAIBackend(CustomTestCase):
+    backend = None
+
+    @classmethod
+    def setUpClass(cls):
+        cls.backend = VertexAI("gemini-1.5-pro-001")
+
+    def test_few_shot_qa(self):
+        set_default_backend(self.backend)
+        test_few_shot_qa()
+
+    def test_mt_bench(self):
+        set_default_backend(self.backend)
+        test_mt_bench()
+
+    def test_expert_answer(self):
+        set_default_backend(self.backend)
+        test_expert_answer(check_answer=False)
+
+    def test_parallel_decoding(self):
+        set_default_backend(self.backend)
+        test_parallel_decoding()
+
+    def test_parallel_encoding(self):
+        set_default_backend(self.backend)
+        test_parallel_encoding()
+
+    def test_image_qa(self):
+        set_default_backend(self.backend)
+        test_image_qa()
+
+    def test_stream(self):
+        set_default_backend(self.backend)
+        test_stream()
+
+
+if __name__ == "__main__":
+    unittest.main()