Add test for crashing on empty menu

pkg/integration/tests/test_list.go

@@ -211,6 +211,7 @@ var tests = []*components.IntegrationTest{
 	tag.Reset,
 	ui.Accordion,
 	ui.DoublePopup,
+	ui.EmptyMenu,
 	ui.SwitchTabFromMenu,
 	undo.UndoCheckoutAndDrop,
 	undo.UndoDrop,

pkg/integration/tests/ui/empty_menu.go

@@ -0,0 +1,31 @@
+package ui
+
+import (
+	"github.com/jesseduffield/lazygit/pkg/config"
+	. "github.com/jesseduffield/lazygit/pkg/integration/components"
+)
+
+var EmptyMenu = NewIntegrationTest(NewIntegrationTestArgs{
+	Description:  "Verify that we don't crash on an empty menu",
+	ExtraCmdArgs: []string{},
+	Skip:         false,
+	SetupConfig:  func(config *config.AppConfig) {},
+	SetupRepo: func(shell *Shell) {
+	},
+	Run: func(t *TestDriver, keys config.KeybindingConfig) {
+		t.Views().Files().
+			IsFocused().
+			Press(keys.Universal.OptionMenu)
+
+		t.Views().Menu().
+			IsFocused().
+			// a string that filters everything out
+			FilterOrSearch("ljasldkjaslkdjalskdjalsdjaslkd").
+			IsEmpty().
+			Press(keys.Universal.Select)
+
+		// back in the files view, selecting the non-existing menu item was a no-op
+		t.Views().Files().
+			IsFocused()
+	},
+})