Function diffLists

internal/testify/assert/assertions.go:1120–1155

diffLists diffs two arrays/slices and returns slices of elements that are only in A and only in B. If some element is present multiple times, each instance is counted separately (e.g. if something is 2x in A and 5x in B, it will be 0x in extraA and 3x in extraB). The order of items in both lists is

(listA, listB interface{})

// If some element is present multiple times, each instance is counted separately (e.g. if something is 2x in A and
// 5x in B, it will be 0x in extraA and 3x in extraB). The order of items in both lists is ignored.
func diffLists(listA, listB interface{}) (extraA, extraB []interface{}) {
	aValue := reflect.ValueOf(listA)
	bValue := reflect.ValueOf(listB)

	aLen := aValue.Len()
	bLen := bValue.Len()

	// Mark indexes in bValue that we already used
	visited := make([]bool, bLen)
	for i := 0; i < aLen; i++ {
		element := aValue.Index(i).Interface()
		found := false
		for j := 0; j < bLen; j++ {
			if visited[j] {
				continue
			}
			if ObjectsAreEqual(bValue.Index(j).Interface(), element) {
				visited[j] = true
				found = true
				break
			}
		}
		if !found {
			extraA = append(extraA, element)
		}
	}

	for j := 0; j < bLen; j++ {
		if visited[j] {
			continue
		}
		extraB = append(extraB, bValue.Index(j).Interface())
	}

	return
}

func formatListDiff(listA, listB interface{}, extraA, extraB []interface{}) string {
	var msg bytes.Buffer