[model]Add experimental Mage-VL full-duplex adapter and offline integration (#6537)

Signed-off-by: Zhanshenzhui <99891002+zyforsure@users.noreply.github.com>
Co-authored-by: Sy03 <1370724210@qq.com>

tests/examples/offline_inference/test_mage_vl.py

@@ -0,0 +1,98 @@
+# SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM-Omni project
+
+from __future__ import annotations
+
+import json
+import subprocess
+import sys
+from pathlib import Path
+
+import pytest
+
+pytestmark = [pytest.mark.core_model, pytest.mark.cpu, pytest.mark.example]
+
+REPO_ROOT = Path(__file__).resolve().parents[3]
+EXAMPLE_SCRIPT = REPO_ROOT / "examples" / "offline_inference" / "mage_vl" / "end2end.py"
+
+
+def _fake_mage_repo(tmp_path: Path) -> Path:
+    repo = tmp_path / "Mage"
+    mage_vl = repo / "mage_vl"
+    mage_vl.mkdir(parents=True)
+    (mage_vl / "inference_base.py").write_text("print('base')\n", encoding="utf-8")
+    (mage_vl / "inference_streaming.py").write_text("print('streaming')\n", encoding="utf-8")
+    return repo
+
+
+def test_mage_vl_offline_example_builds_codec_command(tmp_path: Path) -> None:
+    mage_repo = _fake_mage_repo(tmp_path)
+    video_path = tmp_path / "input.mp4"
+    video_path.write_bytes(b"fake")
+    output_dir = tmp_path / "outputs"
+
+    subprocess.run(
+        [
+            sys.executable,
+            str(EXAMPLE_SCRIPT),
+            "--mage-repo",
+            str(mage_repo),
+            "--task",
+            "video",
+            "--video-path",
+            str(video_path),
+            "--video-backend",
+            "codec",
+            "--codec-engine",
+            "traditional",
+            "--output-dir",
+            str(output_dir),
+            "--dry-run",
+        ],
+        check=True,
+    )
+
+    with open(output_dir / "summary.json", encoding="utf-8") as f:
+        summary = json.load(f)
+
+    assert summary["task"] == "video"
+    assert summary["dry_run"] is True
+    assert "--video-backend" in summary["command"]
+    assert "codec" in summary["command"]
+    assert "--codec-engine" in summary["command"]
+    assert "traditional" in summary["command"]
+
+
+def test_mage_vl_offline_example_builds_streaming_command(tmp_path: Path) -> None:
+    mage_repo = _fake_mage_repo(tmp_path)
+    video_path = tmp_path / "input.mp4"
+    video_path.write_bytes(b"fake")
+    output_dir = tmp_path / "outputs"
+
+    subprocess.run(
+        [
+            sys.executable,
+            str(EXAMPLE_SCRIPT),
+            "--mage-repo",
+            str(mage_repo),
+            "--task",
+            "streaming",
+            "--video-path",
+            str(video_path),
+            "--max-segments",
+            "1",
+            "--output-dir",
+            str(output_dir),
+            "--dry-run",
+        ],
+        check=True,
+    )
+
+    with open(output_dir / "summary.json", encoding="utf-8") as f:
+        summary = json.load(f)
+
+    command = summary["command"]
+    assert summary["task"] == "streaming"
+    assert str(mage_repo / "mage_vl" / "inference_streaming.py") in command
+    assert "--checkpoint" in command
+    assert "--max_segments" in command