func validateAllUnique()

in config/config.go [104:162]
50 lines of code
15 McCabe index (conditional complexity)

func validateAllUnique(c *configpb.Configuration) error {
	var mErr error
	if c == nil {
		return multierror.Append(mErr, errors.New("got an empty config.Configuration"))
	}
	var tgNames []string
	for _, tg := range c.GetTestGroups() {
		if err := validateName(tg.GetName()); err != nil {
			mErr = multierror.Append(mErr, &ValidationError{tg.GetName(), "TestGroup", err.Error()})
		}
		tgNames = append(tgNames, tg.GetName())
	}
	// Test Group names must be unique.
	if err := validateUnique(tgNames, "TestGroup"); err != nil {
		mErr = multierror.Append(mErr, err)
	}

	var dashNames []string
	for _, dash := range c.GetDashboards() {
		if err := validateName(dash.Name); err != nil {
			mErr = multierror.Append(mErr, &ValidationError{dash.GetName(), "Dashboard", err.Error()})
		}
		dashNames = append(dashNames, dash.Name)
		var tabNames []string
		for _, tab := range dash.GetDashboardTab() {
			if err := validateName(tab.Name); err != nil {
				mErr = multierror.Append(mErr, &ValidationError{tab.Name, "DashboardTab", err.Error()})
			}
			tabNames = append(tabNames, tab.Name)
		}
		// Dashboard Tab names must be unique within a Dashboard.
		if err := validateUnique(tabNames, "DashboardTab"); err != nil {
			mErr = multierror.Append(mErr, err)
		}
	}
	// Dashboard names must be unique within Dashboards.
	if err := validateUnique(dashNames, "Dashboard"); err != nil {
		mErr = multierror.Append(mErr, err)
	}

	var dgNames []string
	for _, dg := range c.GetDashboardGroups() {
		if err := validateName(dg.Name); err != nil {
			mErr = multierror.Append(mErr, &ValidationError{dg.Name, "DashboardGroup", err.Error()})
		}
		dgNames = append(dgNames, dg.Name)
	}
	// Dashboard Group names must be unique within Dashboard Groups.
	if err := validateUnique(dgNames, "DashboardGroup"); err != nil {
		mErr = multierror.Append(mErr, err)
	}

	// Names must also be unique within DashboardGroups AND Dashbaords.
	if err := validateUnique(append(dashNames, dgNames...), "Dashboard/DashboardGroup"); err != nil {
		mErr = multierror.Append(mErr, err)
	}

	return mErr
}