Merge bitcoin/bitcoin#21777: test: Fix feature_notifications.py intermittent issue

fa4aec2b26696cc16dc44c6425f7dca3ef91c8ee test: Fix feature_notifications.py intermittent issue (MarcoFalke)

Pull request description:

  Fixes #21683

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MarcoFalke 2021-04-26 18:04:19 +02:00 committed by Konstantin Akimov
parent 5336f42ea8
commit 044ddb4c80
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@ -147,6 +147,8 @@ class NotificationsTest(DashTestFramework):
# Should now verify contents of each file
for tx_id, blockheight, blockhash in tx_details:
fname = os.path.join(self.walletnotify_dir, notify_outputname(self.wallet, tx_id))
# Wait for the cached writes to hit storage
self.wait_until(lambda: os.path.getsize(fname) > 0, timeout=10)
with open(fname, 'rt', encoding='utf-8') as f:
text = f.read()
# Universal newline ensures '\n' on 'nt'