catch ValueError("I/O operation on closed file.") if frontend crashes (#4150)

2024-10-10 21:18:57 +02:00 · 2024-10-10 21:18:57 +02:00 · 1aed39a848
commit 1aed39a848
parent 8ec3cf6157
1 changed files with 8 additions and 3 deletions
--- a/reflex/testing.py
+++ b/reflex/testing.py
@ -394,9 +394,14 @@ class AppHarness:

        def consume_frontend_output():
            while True:
-                line = (
-                    self.frontend_process.stdout.readline()  # pyright: ignore [reportOptionalMemberAccess]
-                )
+                try:
+                    line = (
+                        self.frontend_process.stdout.readline()  # pyright: ignore [reportOptionalMemberAccess]
+                    )
+                # catch I/O operation on closed file.
+                except ValueError as e:
+                    print(e)
+                    break
                if not line:
                    break
                print(line)