fix(stream): close the file handle when save_as fails (#3203)

Author: MohammedAlkindi

playwright/_impl/_stream.py

@@ -27,14 +27,16 @@ def __init__(
 
     async def save_as(self, path: Union[str, Path]) -> None:
         file = await self._loop.run_in_executor(None, lambda: open(path, "wb"))
-        while True:
-            binary = await self._channel.send("read", None, {"size": 1024 * 1024})
-            if not binary:
-                break
-            await self._loop.run_in_executor(
-                None, lambda: file.write(base64.b64decode(binary))
-            )
-        await self._loop.run_in_executor(None, lambda: file.close())
+        try:
+            while True:
+                binary = await self._channel.send("read", None, {"size": 1024 * 1024})
+                if not binary:
+                    break
+                await self._loop.run_in_executor(
+                    None, lambda: file.write(base64.b64decode(binary))
+                )
+        finally:
+            await self._loop.run_in_executor(None, lambda: file.close())
 
     async def read_all(self) -> bytes:
         binary = b""