Method setup

fdbserver/workloads/UnitTests.actor.cpp:100–103

	std::string description() const override { return "UnitTests"; }
	Future<Void> setup(Database const& cx) override {
		platform::eraseDirectoryRecursive(testParams.getDataDir());
		return Void();
	}
	Future<Void> start(Database const& cx) override {
		if (enabled)
			return runUnitTests(this);