Method waitForLogCount

tests/controlplane/controlplane_test.go:248–257

(substr string, want int, timeout time.Duration)

func (h *cpHarness) cleanup(t *testing.T) {
	t.Helper()
	defer func() {
		if t.Failed() {
			t.Logf("Control plane logs:\n%s", h.logBuf.String())
		}
	}()

	if h.cmd.Process == nil {
		return
	}

	// The CP was started with Setpgid: true, so it and all descendants
	// (upgraded new CPs, all workers) share a process group. Killing