更新: 421 个文件 - 2026-03-17 18:30:02

scripts/lab/browser.py

@@ -12,10 +12,12 @@ def capture(url: str, run_dir: Path, prefix: str = "baseline") -> Dict[str, Any]
         "present": False,
         "refs": [],
         "reason": "playwright runtime unavailable",
+        "error_kind": "import-error",
     }
     try:
         from playwright.sync_api import sync_playwright  # type: ignore
-    except Exception:
+    except Exception as exc:
+        payload["reason"] = f"playwright import failed: {exc}"
         write_json(run_dir / "logs" / f"{prefix}-browser.json", payload)
         return payload
 
@@ -33,11 +35,29 @@ def capture(url: str, run_dir: Path, prefix: str = "baseline") -> Dict[str, Any]
     final_url = url
     try:
         with sync_playwright() as p:
-            browser = p.chromium.launch(headless=True)
+            try:
+                browser = p.chromium.launch(headless=True)
+            except Exception as exc:
+                payload["reason"] = f"chromium launch failed: {exc}"
+                payload["error_kind"] = "launch-failed"
+                write_json(run_dir / "logs" / f"{prefix}-browser.json", payload)
+                return payload
             page = browser.new_page()
             page.on("console", lambda msg: console_messages.append({"type": msg.type, "text": msg.text}))
             page.on("request", lambda req: requests_seen.append({"method": req.method, "url": req.url}))
-            page.goto(url, wait_until="networkidle", timeout=20000)
+            response = page.goto(url, wait_until="networkidle", timeout=20000)
+            if response is None:
+                payload["reason"] = "page navigation returned no response"
+                payload["error_kind"] = "navigation-failed"
+                browser.close()
+                write_json(run_dir / "logs" / f"{prefix}-browser.json", payload)
+                return payload
+            if response.status >= 500:
+                payload["reason"] = f"page returned {response.status}"
+                payload["error_kind"] = "target-5xx"
+                browser.close()
+                write_json(run_dir / "logs" / f"{prefix}-browser.json", payload)
+                return payload
             page.screenshot(path=str(screenshot_path), full_page=True)
             dom_path.write_text(page.content(), encoding="utf-8")
             final_url = page.url
@@ -46,6 +66,7 @@ def capture(url: str, run_dir: Path, prefix: str = "baseline") -> Dict[str, Any]
             browser.close()
     except Exception as exc:
         payload["reason"] = str(exc)
+        payload["error_kind"] = "target-timeout" if "Timeout" in str(exc) else "navigation-failed"
         write_json(run_dir / "logs" / f"{prefix}-browser.json", payload)
         return payload
     write_json(console_path, console_messages)
@@ -63,6 +84,7 @@ def capture(url: str, run_dir: Path, prefix: str = "baseline") -> Dict[str, Any]
         "present": True,
         "page_title": page_title,
         "page_url": final_url,
+        "error_kind": None,
         "refs": [str(screenshot_path), str(dom_path), str(console_path), str(network_path), str(page_path)],
     }
     write_json(run_dir / "logs" / f"{prefix}-browser.json", payload)