[AMD] [CI] Enable 3 nested unit tests needing harness stub fixes (#31843)

Co-authored-by: HAI <hixiao@gmail.com>

python/sglang/multimodal_gen/test/server/gpu_cases.py

@@ -1091,6 +1091,11 @@ _AMD_READY_NESTED_UNIT_TESTS = (
     "sana_wm/test_streaming_cached.py",
     "sana_wm/test_streaming_stage.py",
     "sana_wm/test_streaming_vae.py",
+    # Enabled with small test-harness stub fixes (see this PR's test edits).
+    "progressive_resolution/test_progressive.py",
+    "sana_wm/test_streaming_realtime_path.py",
+    # Stub gap already fixed upstream; only needs enabling here.
+    "realtime/test_lingbot_causal_denoising.py",
 )
 
 

python/sglang/multimodal_gen/test/unit/progressive_resolution/test_progressive.py

@@ -9,6 +9,7 @@ from types import SimpleNamespace
 import torch
 
 from sglang.multimodal_gen.configs.sample.sampling_params import SamplingParams
+from sglang.multimodal_gen.runtime.distributed.cfg_policy import CFGPolicy
 from sglang.multimodal_gen.runtime.pipelines_core.stages.progressive_resolution.denoising import (
     ProgressiveDenoisingStage,
     ProgressiveDenoisingStageRouter,
@@ -500,6 +501,9 @@ class TestIdeogram4OnResolutionChange(unittest.TestCase):
         ctx = SimpleNamespace(
             latents=torch.zeros(B, new_num_img, self._IN_C),
             extra=self._make_ctx_extra(B, old_num_img, max_text_tokens),
+            # Non-None so _on_resolution_change proceeds (it early-returns when
+            # cfg_policy is None); the value itself is not used further here.
+            cfg_policy=CFGPolicy(),
         )
         batch = SimpleNamespace(
             extra={
@@ -555,6 +559,9 @@ class TestIdeogram4OnResolutionChange(unittest.TestCase):
         ctx = SimpleNamespace(
             latents=torch.zeros(B, new_grid_h * new_grid_w, self._IN_C),
             extra=self._make_ctx_extra(B, old_grid_h * old_grid_w, max_text_tokens),
+            # Non-None so _on_resolution_change proceeds (it early-returns when
+            # cfg_policy is None); the value itself is not used further here.
+            cfg_policy=CFGPolicy(),
         )
         batch = SimpleNamespace(extra={"ideogram4": old_data})
 
@@ -594,6 +601,9 @@ class TestIdeogram4OnResolutionChange(unittest.TestCase):
         ctx = SimpleNamespace(
             latents=torch.zeros(B, grid_h * grid_w, self._IN_C),
             extra=self._make_ctx_extra(B, old_num_img, max_text_tokens),
+            # Non-None so _on_resolution_change proceeds (it early-returns when
+            # cfg_policy is None); the value itself is not used further here.
+            cfg_policy=CFGPolicy(),
         )
         batch = SimpleNamespace(
             extra={

python/sglang/multimodal_gen/test/unit/sana_wm/test_streaming_realtime_path.py

@@ -47,6 +47,7 @@ def _global_args():
             comfyui_mode=False,
             enable_cfg_parallel=False,
             enable_torch_compile=False,
+            enable_breakable_cuda_graph=False,
             attention_backend=None,
             # DenoisingStage.__init__ reads this for its CFG-parallel plumbing.
             pipeline_config=SimpleNamespace(