Are they slow and brittle? I like having both. Unit tests are a decent indicator for local development. Fast, quick to iterate on. Integration tests are slow a

Are they slow and brittle? I like having both. Unit tests are a decent indicator for local development. Fast, quick to iterate on. Integration tests are slow as molasses and I can’t iterate with them when it takes 20 minutes to setup the suite and run everything. Too slow. But still useful as you say.