Add v1 unit test mirrors

Author: Ratish1

tests/test_v1_model_path_resolution.py

@@ -0,0 +1,19 @@
+# SPDX-License-Identifier: Apache-2.0
+"""Tests for v1 model worker port selection."""
+
+from __future__ import annotations
+
+from sglang_omni_v1.model_runner.model_worker import _resolve_nccl_port
+
+
+def test_resolve_nccl_port_prefers_master_port(monkeypatch) -> None:
+    monkeypatch.setenv("MASTER_PORT", "45678")
+    assert _resolve_nccl_port() == 45678
+
+
+def test_resolve_nccl_port_sets_master_port_when_missing(monkeypatch) -> None:
+    monkeypatch.delenv("MASTER_PORT", raising=False)
+    port = _resolve_nccl_port()
+    assert isinstance(port, int)
+    assert port > 0
+    assert port < 65536