givenQueries

Serves the handlers' reads (context.queries) from queries, the read side of the test, as a node serves them (ContextQueries.of): a node's API (an engine over states the test gives) pins the tenant of the commit a handler handles as trusted code, reading the whole tenant; a fake (a stub, a mock) serves the reads QueryApi.of a caller of that tenant, the trusted ones NodeQueryApi.trusted. Without it, a handler that reads fails.