func()

in testworkflow.go [1184:1208]

• 23 lines of code
• 7 McCabe index (conditional complexity)

func (t *TestWorkflow) getLastStepForVM(vmname string) (*daisy.Step, error) {
	step := "wait-" + vmname
	if _, ok := t.wf.Steps[step]; !ok {
		return nil, fmt.Errorf("no step " + step)
	}
	rdeps := make(map[string][]string)
	for dependent, dependencies := range t.wf.Dependencies {
		for _, dependency := range dependencies {
			rdeps[dependency] = append(rdeps[dependency], dependent)
		}
	}

	for {
		deps, ok := rdeps[step]
		if !ok {
			// no more steps depend on this one
			break
		}
		if len(deps) > 1 {
			return nil, fmt.Errorf("workflow has non-linear dependencies")
		}
		step = deps[0]
	}
	return t.wf.Steps[step], nil
}