🤖 budget

amadan.net/rastrillo/rastrillo/budget

Measures how long a test package takes, so rastrillo budget test can hold it to its time budget.

func Main(m *testing.M) int

const Prefix = "rastrillo-budget/v1 ran "

Call Main from the package's TestMain:

func TestMain(m *testing.M) { os.Exit(budget.Main(m)) }

Main runs the tests, prints one line starting with Prefix and giving the time they took, and returns m.Run's exit code unchanged. It never fails a package itself.

It leaves the judging to rastrillo budget test so that Go's test cache stays trustworthy. Go saves a passing package's output, this line included, and replays it on a cache hit, so a cached package is still judged on the time it took when it ran. If Main read the budget itself, Go would not know to rerun the package when the budget changed.

If your package already has a TestMain, call budget.Main(m) in place of m.Run() and tear down afterwards:

func TestMain(m *testing.M) {
	code := budget.Main(m)
	schema.Remove()
	os.Exit(code)
}

Testing covers the budgets and budgets.txt.

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