Merge #19887: test: Fix flaky wallet_basic test

56b018ca7f test: Fix flaky wallet_basic test (Fabian Jahr)

Pull request description:

  Fixes #19853

  I investigated the issue in #19876 and I still intend to fix the underlying issue of a race when using wallet RPCs right after starting a node in that PR. However, since that is a bit more complicated than I initially thought it makes sense to merge the fix of the test so the intermittent test failures stop. This fix in the test is going to be needed, either way, #19876 will only provide an error where before it was reporting a false balance.

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MarcoFalke 2020-09-06 13:03:39 +02:00
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@ -596,6 +596,9 @@ class WalletTest(BitcoinTestFramework):
# wait until the wallet has submitted all transactions to the mempool
self.wait_until(lambda: len(self.nodes[0].getrawmempool()) == chainlimit * 2)
# Prevent potential race condition when calling wallet RPCs right after restart
self.nodes[0].syncwithvalidationinterfacequeue()
node0_balance = self.nodes[0].getbalance()
# With walletrejectlongchains we will not create the tx and store it in our wallet.
assert_raises_rpc_error(-6, "Transaction has too long of a mempool chain", self.nodes[0].sendtoaddress, sending_addr, node0_balance - Decimal('0.01'))