d2f8f1b307 use testing setup mempool in ComplexMemPool bench (glozow)
aecc332a71 create and use mempool transactions using real coins in MempoolCheck (glozow)
2118750631 [test util] to populate mempool with random transactions/packages (glozow)
5374dfc4e3 [test util] use -checkmempool for TestingSetup mempool check ratio (glozow)
d7d9c7b266 [test util] add chain name to TestChain100Setup ctor (glozow)
Pull request description:
Fixes#24634 by using the `testing_setup`'s actual mempool rather than a locally-declared mempool for running `check()`.
Also creates a test utility for populating the mempool with a bunch of random transactions. I imagine this could be useful in other places as well; it was necessary here because we needed the mempool to contain transactions *spending coins available in the current chainstate*. The existing `CreateOrderedCoins()` is insufficient because it creates coins out of thin air.
Also implements the separate suggestion to use the `TestingSetup` mempool in `ComplexMemPool` bench.
ACKs for top commit:
laanwj:
Code review ACK d2f8f1b307
Tree-SHA512: 44ab5a9e55b126b5a5bc33f05fbad1380b9c43c84736c7cf487be025e0e3f5d75216ccf5a3088b0935da817e3dacfba99d2885f75bcb6e7eaa24cd20a82c24c8
a100c42a13