Assertion: integration tests should be written as periodic synthetic monitoring tests against prod FIRST. Running them as part of a build should be a free-ish bonus.

I cut my teeth on aerospace systems where constant self-testing was a given. I can’t count the number of times I’ve been let down by the discrepancy between integration tests environments and prod; or by the latency of “Real User Monitoring”.

When assumptions about integrations break in the real world I want to see it IMMEDIATELY

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