Split into category packages; module github.com/ZacharyZhang-NY/MujicaUI

messaging/messaging_regression_test.go

@@ -0,0 +1,49 @@
+package messaging
+
+import (
+	"fmt"
+	"testing"
+
+	"github.com/egoist/mygo/ui"
+
+	"github.com/ZacharyZhang-NY/MujicaUI/core"
+)
+
+func TestMessagingLargeListsBounded(t *testing.T) {
+	const count = 100000
+	channels := make([]Channel, count)
+	pins := make([]ChatEntry, count)
+	for i := range count {
+		channels[i] = Channel{ID: fmt.Sprint(i), Name: fmt.Sprint("Channel ", i)}
+		pins[i] = ChatEntry{ID: fmt.Sprint(i), Author: "Author", Text: fmt.Sprint("Pinned ", i)}
+	}
+	for _, name := range []string{"channels", "pins"} {
+		t.Run(name, func(t *testing.T) {
+			selected := ""
+			groups := []ChannelGroup{{ID: "g", Title: "Group", Channels: channels}}
+			tt := ui.NewTester(func(c *ui.Context) {
+				core.Use(c, core.Settings{})
+				ui.Column(c).Height(280).Children(func() {
+					if name == "channels" {
+						ChannelList(c, &selected, groups, ChannelListOptions{Height: 240})
+					} else {
+						PinnedMessages(c, pins, PinnedMessagesOptions{Height: 240})
+					}
+				})
+			}, 400, 300)
+			prefix := "Channel "
+			if name == "pins" {
+				prefix = "Pinned "
+			}
+			n := 0
+			for _, text := range tt.Texts() {
+				if len(text) >= len(prefix) && text[:len(prefix)] == prefix {
+					n++
+				}
+			}
+			if n == 0 || n > 60 {
+				t.Fatalf("built %d of %d", n, count)
+			}
+		})
+	}
+}