Add runtime environment readiness checks

backend/tests/test_system_service.py

@@ -1,4 +1,5 @@
-from app.modules.system.service import parse_nvidia_smi_csv
+from app.modules.system import service
+from app.modules.system.service import get_runtime_readiness, parse_nvidia_smi_csv, parse_probe_stdout
 
 
 def test_parse_nvidia_smi_csv():
@@ -16,3 +17,57 @@ def test_parse_nvidia_smi_csv():
         }
     ]
 
+
+def test_parse_probe_stdout_uses_last_json_line():
+    parsed = parse_probe_stdout(
+        "warning before json\n"
+        '{"checks":[{"module":"torch","passed":true,"version":"2.6.0"}],"extra":{"python":"3.11"}}\n'
+    )
+
+    assert parsed["checks"][0]["module"] == "torch"
+    assert parsed["extra"]["python"] == "3.11"
+
+
+def test_runtime_readiness_marks_missing_env(monkeypatch):
+    monkeypatch.setattr(service, "_readiness_cache", None)
+    monkeypatch.setattr(service, "get_conda_envs", lambda: {"available": True, "envs": []})
+
+    readiness = get_runtime_readiness(force=True)
+
+    assert readiness["passed"] is False
+    assert all(not item["exists"] for item in readiness["envs"])
+
+
+def test_runtime_readiness_aggregates_probe_results(monkeypatch):
+    monkeypatch.setattr(service, "_readiness_cache", None)
+    specs = [
+        {"role": "task", "name": "seg_smp", "label": "task", "env_file": "envs/seg_smp.yml", "required_imports": []},
+        {"role": "mmseg", "name": "seg_mmcv", "label": "mmseg", "env_file": "envs/seg_mmcv.yml", "required_imports": []},
+    ]
+    monkeypatch.setattr(service, "runtime_environment_specs", lambda: specs)
+    monkeypatch.setattr(
+        service,
+        "get_conda_envs",
+        lambda: {
+            "available": True,
+            "envs": [
+                {"name": "seg_smp", "path": "/envs/seg_smp"},
+                {"name": "seg_mmcv", "path": "/envs/seg_mmcv"},
+            ],
+        },
+    )
+    monkeypatch.setattr(
+        service,
+        "inspect_conda_env",
+        lambda name, imports: {
+            "passed": True,
+            "checks": [{"module": "torch", "passed": True}],
+            "extra": {"python": "3.11"},
+        },
+    )
+
+    readiness = get_runtime_readiness(force=True)
+
+    assert readiness["passed"] is True
+    assert readiness["envs"][0]["path"] == "/envs/seg_smp"
+    assert readiness["specs"]["env_files"] == ["envs/seg_smp.yml", "envs/seg_mmcv.yml"]