Add integration tests for configuring the side panels

Cover the three things gui.sidePanels enables: reordering the panels
(swapping branches and commits, checked via their jump keys), hiding a
panel (omitting stash, checked by cycling past the last panel and wrapping
to the first), and promoting a tab to its own panel (worktrees becomes a
top-level panel reachable by a jump key, and the files panel's remaining
tabs cycle straight to submodules).

The tests drive focus with explicit jump keys rather than ViewDriver.Focus,
which assumes the default panel layout.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

pkg/integration/tests/test_list.go

@@ -473,11 +473,14 @@ var tests = []*components.IntegrationTest{
 	ui.Accordion,
 	ui.DisableSwitchTabWithPanelJumpKeys,
 	ui.EmptyMenu,
+	ui.HideSidePanel,
 	ui.KeybindingSuggestionsDontCrashOnDisabledBindings,
 	ui.KeybindingSuggestionsWhenSwitchingRepos,
 	ui.ModeSpecificKeybindingSuggestions,
 	ui.OpenLinkFailure,
+	ui.PromoteTabToSidePanel,
 	ui.RangeSelect,
+	ui.ReorderSidePanels,
 	ui.SwitchTabFromMenu,
 	ui.SwitchTabWithPanelJumpKeys,
 	undo.UndoCheckoutAndDrop,

pkg/integration/tests/ui/hide_side_panel.go

@@ -0,0 +1,33 @@
+package ui
+
+import (
+	"github.com/jesseduffield/lazygit/pkg/config"
+	. "github.com/jesseduffield/lazygit/pkg/integration/components"
+)
+
+var HideSidePanel = NewIntegrationTest(NewIntegrationTestArgs{
+	Description:  "Hide a side panel by omitting it from gui.sidePanels",
+	ExtraCmdArgs: []string{},
+	Skip:         false,
+	SetupConfig: func(cfg *config.AppConfig) {
+		// No stash panel.
+		cfg.GetUserConfig().Gui.SidePanels = []config.SidePanel{
+			{"status"},
+			{"files", "worktrees", "submodules"},
+			{"branches", "remotes", "tags"},
+			{"commits", "reflog"},
+		}
+	},
+	SetupRepo: func(shell *Shell) {
+		shell.CreateNCommits(2)
+	},
+	Run: func(t *TestDriver, keys config.KeybindingConfig) {
+		// Commits is now the last panel; cycling forward from it wraps around to
+		// the status panel, skipping the hidden stash panel entirely.
+		t.Views().Files().IsFocused().
+			Press(keys.Universal.JumpToBlock[3])
+		t.Views().Commits().IsFocused().
+			Press(keys.Universal.NextBlock)
+		t.Views().Status().IsFocused()
+	},
+})

pkg/integration/tests/ui/promote_tab_to_side_panel.go

@@ -0,0 +1,40 @@
+package ui
+
+import (
+	"github.com/jesseduffield/lazygit/pkg/config"
+	. "github.com/jesseduffield/lazygit/pkg/integration/components"
+)
+
+var PromoteTabToSidePanel = NewIntegrationTest(NewIntegrationTestArgs{
+	Description:  "Promote the worktrees tab to its own top-level side panel via gui.sidePanels",
+	ExtraCmdArgs: []string{},
+	Skip:         false,
+	SetupConfig: func(cfg *config.AppConfig) {
+		// Worktrees is pulled out of the files panel into its own panel.
+		cfg.GetUserConfig().Gui.SidePanels = []config.SidePanel{
+			{"status"},
+			{"files", "submodules"},
+			{"worktrees"},
+			{"branches", "remotes", "tags"},
+			{"commits", "reflog"},
+			{"stash"},
+		}
+	},
+	SetupRepo: func(shell *Shell) {
+		shell.CreateNCommits(2)
+	},
+	Run: func(t *TestDriver, keys config.KeybindingConfig) {
+		// Worktrees is now its own panel in the third position, reachable by its
+		// jump key rather than as a tab of the files panel.
+		t.Views().Files().IsFocused().
+			Press(keys.Universal.JumpToBlock[2])
+		t.Views().Worktrees().IsFocused().
+			Press(keys.Universal.JumpToBlock[1])
+
+		// The files panel's tabs are now just files and submodules, so cycling
+		// tabs from files goes straight to submodules.
+		t.Views().Files().IsFocused().
+			Press(keys.Universal.NextTab)
+		t.Views().Submodules().IsFocused()
+	},
+})

pkg/integration/tests/ui/reorder_side_panels.go

@@ -0,0 +1,33 @@
+package ui
+
+import (
+	"github.com/jesseduffield/lazygit/pkg/config"
+	. "github.com/jesseduffield/lazygit/pkg/integration/components"
+)
+
+var ReorderSidePanels = NewIntegrationTest(NewIntegrationTestArgs{
+	Description:  "Reorder the side panels with gui.sidePanels, swapping the branches and commits panels",
+	ExtraCmdArgs: []string{},
+	Skip:         false,
+	SetupConfig: func(cfg *config.AppConfig) {
+		cfg.GetUserConfig().Gui.SidePanels = []config.SidePanel{
+			{"status"},
+			{"files", "worktrees", "submodules"},
+			{"commits", "reflog"},
+			{"branches", "remotes", "tags"},
+			{"stash"},
+		}
+	},
+	SetupRepo: func(shell *Shell) {
+		shell.CreateNCommits(2)
+	},
+	Run: func(t *TestDriver, keys config.KeybindingConfig) {
+		// The third panel is now commits and the fourth is branches (the reverse
+		// of the default order), so their jump keys are swapped.
+		t.Views().Files().IsFocused().
+			Press(keys.Universal.JumpToBlock[2])
+		t.Views().Commits().IsFocused().
+			Press(keys.Universal.JumpToBlock[3])
+		t.Views().Branches().IsFocused()
+	},
+})