130 lines
3.3 KiB
Go
130 lines
3.3 KiB
Go
package chat
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import (
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"fmt"
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"testing"
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"time"
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"github.com/egoist/mygo/ui"
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"git.zacharyzhang.com/ZacharyZhang-NY/MujicaUI/core"
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)
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// messageListApp is a chat of n messages with stable IDs.
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type messageListApp struct {
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ids []string
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state MessageListState
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built int
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res MessageListResult
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}
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func newMessageListApp(n int) *messageListApp {
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a := &messageListApp{}
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for i := range n {
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a.ids = append(a.ids, fmt.Sprintf("m%d", i))
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}
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return a
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}
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func (a *messageListApp) view(c *ui.Context) {
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core.Use(c, core.Settings{})
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a.built = 0
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day := time.Date(2026, 3, 1, 9, 0, 0, 0, time.UTC)
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a.res = MessageList(c, &a.state, len(a.ids), MessageListOptions{
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ID: func(i int) string { return a.ids[i] },
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Date: func(i int) time.Time { return day.Add(time.Duration(i/3) * 24 * time.Hour) },
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}, func(i int) {
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a.built++
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ui.Text(c, "Message "+a.ids[i]).Padding(8)
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})
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}
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func TestMessageListVirtualizedAndFollowsEnd(t *testing.T) {
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a := newMessageListApp(100000)
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tt := ui.NewTester(a.view, 400, 300)
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tt.Frame()
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if a.built == 0 || a.built > 60 {
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t.Fatalf("built %d rows of 100000", a.built)
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}
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if !tt.HasText("Message m99999") || !a.state.AtEnd() {
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t.Fatal("list did not start at the newest message")
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}
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a.ids = append(a.ids, "m100000")
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tt.Frame()
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tt.Frame()
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if !tt.HasText("Message m100000") || a.res.Unread() != 0 {
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t.Fatalf("new message not followed, unread %d", a.res.Unread())
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}
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}
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func TestMessageListStopsFollowingAndCountsUnread(t *testing.T) {
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a := newMessageListApp(50)
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tt := ui.NewTester(a.view, 400, 300)
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tt.Frame()
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tt.Scroll(200, 150, 0, -2000)
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tt.Frame()
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if a.state.AtEnd() {
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t.Fatal("still at end after scrolling up")
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}
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a.ids = append(a.ids, "n1", "n2")
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tt.Frame()
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tt.Frame()
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if tt.HasText("Message n2") || a.res.Unread() != 2 {
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t.Fatalf("followed while scrolled up, unread %d", a.res.Unread())
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}
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if err := tt.Click("Scroll to latest, 2 new"); err != nil {
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t.Fatal(err)
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}
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tt.Frame()
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tt.Frame()
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if !tt.HasText("Message n2") || a.res.Unread() != 0 {
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t.Fatalf("jump did not reach the end, unread %d", a.res.Unread())
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}
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}
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func TestMessageListKeepsPlaceByID(t *testing.T) {
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a := newMessageListApp(50)
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tt := ui.NewTester(a.view, 400, 300)
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tt.Frame()
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tt.Scroll(200, 150, 0, -600)
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tt.Frame()
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r, _ := tt.Find("Message m40")
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// Older messages load above; the one in view stays put.
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a.ids = append([]string{"old1", "old2", "old3"}, a.ids...)
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tt.Frame()
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r2, ok := tt.Find("Message m40")
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if !ok || r2.Y != r.Y {
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t.Fatalf("m40 moved from %v to %v (found %v)", r.Y, r2.Y, ok)
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}
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}
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func TestMessageListDaySeparators(t *testing.T) {
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a := newMessageListApp(6)
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tt := ui.NewTester(a.view, 400, 600)
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tt.Frame()
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for _, d := range []string{"Mar 1, 2026", "Mar 2, 2026"} {
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if !tt.HasText(d) {
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t.Errorf("missing separator %q in %q", d, tt.Texts())
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}
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}
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}
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func TestMessageListNeedsID(t *testing.T) {
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defer func() {
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if recover() == nil {
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t.Fatal("no panic without ID")
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}
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}()
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var s MessageListState
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ui.NewTester(func(c *ui.Context) {
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core.Use(c, core.Settings{})
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MessageList(c, &s, 1, MessageListOptions{}, func(int) {})
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}, 200, 100)
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}
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func TestMessageListSnapshot(t *testing.T) {
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snapshot(t, "message_list", 420, 320, func(c *ui.Context) {
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(*ui.Local(c.Root(), "app", func() *messageListApp { return newMessageListApp(6) })).view(c)
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})
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}
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