[Frontend] MiniMax-H3: Add latent-mask editing to the ComfyUI extension (#7575)

Signed-off-by: chen hongwei <1792043268@qq.com>
Signed-off-by: Wang Zhipeng <wangzhipeng628@gmail.com>
Signed-off-by: princepride <wangzhipeng628@gmail.com>
Co-authored-by: Wang Zhipeng <wangzhipeng628@gmail.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>

tests/e2e/features/comfyui/test_comfyui_integration.py

@@ -30,6 +30,7 @@ from comfyui_vllm_omni.nodes import (
     VLLMOmniGenerateImage,
     VLLMOmniGenerateMusic,
     VLLMOmniGenerateVideo,
+    VLLMOmniLatentMaskEditing,
     VLLMOmniTTS,
     VLLMOmniUnderstanding,
     VLLMOmniVideoReferences,
@@ -1344,3 +1345,52 @@ async def test_music_generation_node_minimax_music3(api_server: str, sampling_ca
     assert len(result) == 1
     assert result[0]["sample_rate"] == 24000
     assert result[0]["waveform"].shape == (1, 1, 24000)
+
+
+@pytest.mark.asyncio
+@pytest.mark.parametrize(
+    "server_case",
+    [
+        pytest.param(
+            ServerCase(
+                served_model="MiniMaxAI/MiniMax-H3",
+                stage_list=["diffusion"],
+                stage_configs=[H3_STAGE_CONFIG],
+                outputs=[_build_diffusion_video_output()],
+            ),
+            id="minimax-h3",
+        ),
+    ],
+    indirect=True,
+)
+@pytest.mark.parametrize(
+    "sampling_case",
+    [pytest.param(SamplingCase(kind=SamplingKind.VIDEO_NONE, sampling_params=None), id="latent-mask")],
+    indirect=True,
+)
+async def test_video_generation_node_minimax_h3_latent_mask_editing(api_server: str, sampling_case: SamplingCase):
+    """Latent-mask editing: the raw video/audio masks must be accepted by the real /v1/videos form parser."""
+    mask_node = VLLMOmniLatentMaskEditing()
+    (latent_edit,) = mask_node.get_latent_edit(
+        source_video=VideoInput(b"mock-source-video"),
+        video_mask=torch.zeros((VIDEO_HEIGHT, VIDEO_WIDTH), dtype=torch.float32),
+        audio_mask=0.5,
+    )
+
+    node = VLLMOmniGenerateVideo()
+    result = await node.generate(
+        url=api_server,
+        model="MiniMaxAI/MiniMax-H3",
+        prompt="Restyle the clip.",
+        negative_prompt="",
+        width=VIDEO_WIDTH,
+        height=VIDEO_HEIGHT,
+        fps=VIDEO_FPS,
+        duration=VIDEO_DURATION,
+        model_params=H3_MODEL_PARAMS,
+        latent_edit=latent_edit,
+    )
+
+    assert isinstance(result, tuple)
+    assert len(result) == 1
+    assert isinstance(result[0], VideoInput)