This PR proposes some changes to the hspec testsuite:
* It amends the framework to make it easier to test from the ghci REPL
* It introduces a new module `Fixture`, distinguished from `Context` by:
* using a new concept of `SetupAction`s which bundle setup and teardown actions into one abstraction, making test system state setup more concise, modularized and safe (because the fixture know knows about the ordering of setup actions and can do partial rollbacks)
* somewhat opinionated, elides the `Options` of `Context`, preferring instead that tests that care about stringification of json numbers manage that themselves.
(Note that this PR builds on #4390, so contains some spurious commits which will become irrelevant once that PR is merged)
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/4630
GitOrigin-RevId: 619c8d985aed0aa42de31d6f16891d0782f4b4b5
## Description
This PR adds a `defaultSourceMetadata` expression to each backend's harness file, and introduces `setSource` and `setSources` to factor out all the calls to `replace_metadata` in the tests.
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/3425
GitOrigin-RevId: 5eacb156ffa198123262759eb2bbdebe8ab09fd7
