Testing a production Bash script: 38 tests without a framework
The context: a Bash script to display Claude Code rate limits in a terminal status bar. At first it seems trivial — a few functions, reading a JSON fi…
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Testing a Go exchange API client: mocks, httptest and testcontainers
The Go service runs locally, tests pass. Then you remember the tests are hitting the real Binance API. The next day, CI fails: rate limit exceeded, un…