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We're in the process of moving the Broker to TypeScript so that we can improve our confidence when upgrading dependencies and making other changes. However, the legacy testing frameworks and tools were making progress slow. Given the tests need to also roll forward, we've opted to migrate these first. In general, the tests should be mostly identical, but instead of using
proxyquire
,tap
,sinon
andrequire-reload
,tap-only
, we use Jest.The aim is not to make the tests "better" yet, only to focus on modernising the infrastructure without any changes to the source code. This should make the test migrations easier to read and review.