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|
package middleware
import (
"reflect"
"testing"
"github.com/google/go-cmp/cmp"
)
func TestOrderedIDsAdd(t *testing.T) {
o := newOrderedIDs()
noError(t, o.Add(&mockIder{"first"}, After))
noError(t, o.Add(&mockIder{"second"}, After))
noError(t, o.Add(&mockIder{"third"}, After))
noError(t, o.Add(&mockIder{"real-first"}, Before))
if err := o.Add(&mockIder{""}, After); err == nil {
t.Errorf("expect error adding empty ID, got none")
}
if err := o.Add(&mockIder{"second"}, After); err == nil {
t.Errorf("expect error adding duplicate, got none")
}
if err := o.Add(&mockIder{"unique"}, 123); err == nil {
t.Errorf("expect error add unknown relative position, got none")
}
expectIDs := []string{"real-first", "first", "second", "third"}
if e, a := expectIDs, o.List(); !reflect.DeepEqual(e, a) {
t.Errorf("expect %v order, got %v", e, a)
}
}
func TestOrderedIDsInsert(t *testing.T) {
o := newOrderedIDs()
noError(t, o.Add(&mockIder{"first"}, After))
noError(t, o.Insert(&mockIder{"third"}, "first", After))
noError(t, o.Insert(&mockIder{"second"}, "third", Before))
noError(t, o.Insert(&mockIder{"real-first"}, "first", Before))
noError(t, o.Insert(&mockIder{"not-yet-last"}, "second", After))
noError(t, o.Insert(&mockIder{"last"}, "third", After))
if err := o.Insert(&mockIder{""}, "first", After); err == nil {
t.Errorf("expect error insert empty ID, got none")
}
if err := o.Insert(&mockIder{"second"}, "", After); err == nil {
t.Errorf("expect error insert with empty relative ID, got none")
}
if err := o.Insert(&mockIder{"second"}, "third", After); err == nil {
t.Errorf("expect error insert duplicate, got none")
}
if err := o.Insert(&mockIder{"unique"}, "not-found", After); err == nil {
t.Errorf("expect error insert not found relative ID, got none")
}
if err := o.Insert(&mockIder{"unique"}, "first", 123); err == nil {
t.Errorf("expect error insert unknown relative position, got none")
}
expectIDs := []string{"real-first", "first", "second", "not-yet-last", "third", "last"}
if e, a := expectIDs, o.List(); !reflect.DeepEqual(e, a) {
t.Errorf("expect %v order, got %v", e, a)
}
}
func TestOrderedIDsGet(t *testing.T) {
o := newOrderedIDs()
noError(t, o.Add(&mockIder{"first"}, After))
noError(t, o.Add(&mockIder{"second"}, After))
f, ok := o.Get("not-found")
if ok || f != nil {
t.Fatalf("expect id not to be found, but was")
}
f, ok = o.Get("first")
if !ok {
t.Fatalf("expect id to be found, was not")
}
if e, a := "first", f.ID(); e != a {
t.Errorf("expect %v id, got %v", e, a)
}
}
func TestOrderedIDsSwap(t *testing.T) {
o := newOrderedIDs()
noError(t, o.Add(&mockIder{"first"}, After))
noError(t, o.Add(&mockIder{"second"}, After))
noError(t, o.Add(&mockIder{"third"}, After))
if _, err := o.Swap("first", &mockIder{""}); err == nil {
t.Errorf("expect error swap empty ID, got none")
}
if _, err := o.Swap("", &mockIder{"second"}); err == nil {
t.Errorf("expect error swap with empty relative ID, got none")
}
if _, err := o.Swap("not-exists", &mockIder{"last"}); err == nil {
t.Errorf("expect error swap not-exists ID, got none")
}
if _, err := o.Swap("second", &mockIder{"first"}); err == nil {
t.Errorf("expect error swap to existing ID, got none")
}
r, err := o.Swap("second", &mockIder{"otherSecond"})
noError(t, err)
if r == nil {
t.Fatalf("expect removed item to be returned")
}
if e, a := "second", r.ID(); e != a {
t.Errorf("expect %v removed ider, got %v", e, a)
}
expectIDs := []string{"first", "otherSecond", "third"}
if e, a := expectIDs, o.List(); !reflect.DeepEqual(e, a) {
t.Errorf("expect %v order, got %v", e, a)
}
}
func TestOrderedIDsRemove(t *testing.T) {
o := newOrderedIDs()
firstIder := &mockIder{"first"}
noError(t, o.Add(firstIder, After))
noError(t, o.Insert(&mockIder{"third"}, "first", After))
if removed, err := o.Remove("first"); err != nil {
t.Errorf("expect no error, got %v", err)
} else if removed != firstIder {
t.Error("removed ider did not match expected")
}
noError(t, o.Insert(&mockIder{"last"}, "third", After))
if _, err := o.Remove(""); err == nil {
t.Errorf("expect error remove empty ID, got none")
}
if _, err := o.Remove("not-exists"); err == nil {
t.Errorf("expect error remove not exists ID, got none")
}
expectIDs := []string{"third", "last"}
if e, a := expectIDs, o.List(); !reflect.DeepEqual(e, a) {
t.Errorf("expect %v order, got %v", e, a)
}
}
func TestOrderedIDsClear(t *testing.T) {
o := newOrderedIDs()
noError(t, o.Add(&mockIder{"first"}, After))
noError(t, o.Add(&mockIder{"second"}, After))
o.Clear()
noError(t, o.Add(&mockIder{"third"}, After))
noError(t, o.Add(&mockIder{"fourth"}, After))
expectIDs := []string{"third", "fourth"}
if e, a := expectIDs, o.List(); !reflect.DeepEqual(e, a) {
t.Errorf("expect %v order, got %v", e, a)
}
}
func TestOrderedIDsGetOrder(t *testing.T) {
o := newOrderedIDs()
noError(t, o.Add(&mockIder{"first"}, After))
noError(t, o.Add(&mockIder{"second"}, After))
noError(t, o.Add(&mockIder{"third"}, After))
noError(t, o.Add(&mockIder{"real-first"}, Before))
expectIDs := []string{"real-first", "first", "second", "third"}
if e, a := expectIDs, o.List(); !reflect.DeepEqual(e, a) {
t.Errorf("expect %v order, got %v", e, a)
}
actualOrder := o.GetOrder()
if e, a := len(expectIDs), len(actualOrder); e != a {
t.Errorf("expect %v IDs, got %v", e, a)
}
compareGetOrder(t, expectIDs, actualOrder)
}
func TestRelativeOrder_insert(t *testing.T) {
var ro relativeOrder
if err := ro.insert(0, After); err != nil {
t.Errorf("expect no error, got %v", err)
}
if err := ro.insert(0, Before); err != nil {
t.Errorf("expect no error, got %v", err)
}
if len(ro.order) > 0 {
t.Errorf("expect slice to be empty")
}
if err := ro.insert(0, After, "foo"); err != nil {
t.Errorf("expect no error, got %v", err)
}
if err := ro.insert(0, After, "bar"); err != nil {
t.Errorf("expect no error, got %v", err)
}
if err := ro.insert(1, After, "baz"); err != nil {
t.Errorf("expect no error, got %v", err)
}
if err := ro.insert(1, Before, "fob"); err != nil {
t.Errorf("expect no error, got %v", err)
}
if err := ro.insert(3, Before, "bas"); err != nil {
t.Errorf("expect no error, got %v", err)
}
if err := ro.insert(3, After, "bat"); err != nil {
t.Errorf("expect no error, got %v", err)
}
if err := ro.insert(0, 1024, "zzz"); err == nil {
t.Error("expect error, got nil")
}
if diff := cmp.Diff([]string{"foo", "fob", "bar", "bas", "bat", "baz"}, ro.order); len(diff) > 0 {
t.Error(diff)
}
}
func compareGetOrder(t *testing.T, expected []string, actual []interface{}) {
t.Helper()
for _, eID := range expected {
var found bool
for _, aIder := range actual {
if e, a := eID, aIder.(ider).ID(); e == a {
if found {
t.Errorf("expect only one %v, got more", e)
}
found = true
}
}
if !found {
t.Errorf("expect to find %v, did not", eID)
}
}
}
|
