Add test for retained context focus when switching worktrees

pkg/integration/tests/test_list.go

@@ -231,5 +231,6 @@ var tests = []*components.IntegrationTest{
 	worktree.ForceRemoveWorktree,
 	worktree.Rebase,
 	worktree.RemoveWorktreeFromBranch,
+	worktree.RetainedWindowFocus,
 	worktree.WorktreeInRepo,
 }

pkg/integration/tests/worktree/retained_window_focus.go

@@ -0,0 +1,45 @@
+package worktree
+
+import (
+	"github.com/jesseduffield/lazygit/pkg/config"
+	. "github.com/jesseduffield/lazygit/pkg/integration/components"
+)
+
+var RetainedWindowFocus = NewIntegrationTest(NewIntegrationTestArgs{
+	Description:  "Verify that the focused context in each window is retained when switching worktrees",
+	ExtraCmdArgs: []string{},
+	Skip:         false,
+	SetupConfig:  func(config *config.AppConfig) {},
+	SetupRepo: func(shell *Shell) {
+		shell.NewBranch("mybranch")
+		shell.CreateFileAndAdd("README.md", "hello world")
+		shell.Commit("initial commit")
+		shell.EmptyCommit("commit 2")
+		shell.EmptyCommit("commit 3")
+		shell.AddWorktree("mybranch", "../linked-worktree", "newbranch")
+		shell.AddFileInWorktree("../linked-worktree")
+	},
+	Run: func(t *TestDriver, keys config.KeybindingConfig) {
+		// focus the remotes tab i.e. the second tab in the branches window
+		t.Views().Remotes().
+			Focus()
+
+		t.Views().Worktrees().
+			Focus().
+			Lines(
+				Contains("repo (main)").IsSelected(),
+				Contains("linked-worktree"),
+			).
+			NavigateToLine(Contains("linked-worktree")).
+			Press(keys.Universal.Select).
+			Lines(
+				Contains("linked-worktree").IsSelected(),
+				Contains("repo (main)"),
+			).
+			// navigate back to the branches window
+			Press(keys.Universal.NextBlock)
+
+		t.Views().Remotes().
+			IsFocused()
+	},
+})