testCases := []struct {
		desc string
		// subsetsReady, subsetsNotReady, expectedReady, expectedNotReady
		// must all be the same length
		subsetsReady     []int
		subsetsNotReady  []int
		expectedReady    []int
		expectedNotReady []int
	}{{
		desc:             "empty",
		subsetsReady:     []int{},
		subsetsNotReady:  []int{},
		expectedReady:    []int{},
		expectedNotReady: []int{},