Add test helpers for a menu's filter row

Its footer, the hint in the menu's subtitle, where the row sits in
relation to the menu and the tooltip, and whether the text cursor is
showing are all things the tests for it need to look at.

Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>

pkg/gui/gui_driver.go

@@ -181,6 +181,10 @@ func (self *GuiDriver) CurrentContext() types.Context {
 	return self.gui.State.ContextMgr.Current()
 }
 
+func (self *GuiDriver) CursorVisible() bool {
+	return self.gui.g.Cursor
+}
+
 func (self *GuiDriver) ContextForView(viewName string) types.Context {
 	context, ok := self.gui.helpers.View.ContextForView(viewName)
 	if !ok {

pkg/integration/components/test_driver.go

@@ -97,6 +97,24 @@ func (self *TestDriver) GlobalPress(key config.Keybinding) {
 	self.press(key[0])
 }
 
+// asserts that the terminal's text cursor is shown, i.e. that there is a text
+// field to type into
+func (self *TestDriver) CursorIsVisible() *TestDriver {
+	self.assertWithRetries(func() (bool, string) {
+		return self.gui.CursorVisible(), "Expected the cursor to be visible"
+	})
+
+	return self
+}
+
+func (self *TestDriver) CursorIsHidden() *TestDriver {
+	self.assertWithRetries(func() (bool, string) {
+		return !self.gui.CursorVisible(), "Expected the cursor to be hidden"
+	})
+
+	return self
+}
+
 // FocusIn simulates the terminal window regaining focus, which causes lazygit
 // to reload any config files that changed while it was in the background.
 func (self *TestDriver) FocusIn() {

pkg/integration/components/test_test.go

@@ -88,6 +88,10 @@ func (self *fakeGuiDriver) CurrentContext() types.Context {
 	return nil
 }
 
+func (self *fakeGuiDriver) CursorVisible() bool {
+	return false
+}
+
 func (self *fakeGuiDriver) ContextForView(viewName string) types.Context {
 	return nil
 }

pkg/integration/components/view_driver.go

@@ -41,6 +41,53 @@ func (self *ViewDriver) Title(expected *TextMatcher) *ViewDriver {
 	return self
 }
 
+// asserts that the view has the expected footer, i.e. the "x of y" text on its
+// bottom border
+func (self *ViewDriver) Footer(expected *TextMatcher) *ViewDriver {
+	self.t.assertWithRetries(func() (bool, string) {
+		actual := self.getView().Footer
+		return expected.context(fmt.Sprintf("%s footer", self.context)).test(actual)
+	})
+
+	return self
+}
+
+// asserts that the view has the expected subtitle
+func (self *ViewDriver) Subtitle(expected *TextMatcher) *ViewDriver {
+	self.t.assertWithRetries(func() (bool, string) {
+		actual := self.getView().Subtitle
+		return expected.context(fmt.Sprintf("%s subtitle", self.context)).test(actual)
+	})
+
+	return self
+}
+
+// asserts that the view hangs off the bottom of the given one, sharing a border
+// with it
+func (self *ViewDriver) SharesTopBorderWithBottomOf(upper *ViewDriver) *ViewDriver {
+	self.t.assertWithRetries(func() (bool, string) {
+		_, _, _, upperY1 := upper.getView().Dimensions()
+		_, y0, _, _ := self.getView().Dimensions()
+		return y0 == upperY1, fmt.Sprintf(
+			"%s: Expected view to start on row %d, where the view above it ends, but it starts on row %d",
+			self.context, upperY1, y0)
+	})
+
+	return self
+}
+
+// asserts that the view starts on the row below the given one
+func (self *ViewDriver) IsImmediatelyBelow(upper *ViewDriver) *ViewDriver {
+	self.t.assertWithRetries(func() (bool, string) {
+		_, _, _, upperY1 := upper.getView().Dimensions()
+		_, y0, _, _ := self.getView().Dimensions()
+		return y0 == upperY1+1, fmt.Sprintf(
+			"%s: Expected view to start on row %d, but it starts on row %d", self.context, upperY1+1, y0)
+	})
+
+	return self
+}
+
 func (self *ViewDriver) Clear() *ViewDriver {
 	// clearing multiple times in case there's multiple lines
 	//  (the clear button only clears a single line at a time)

pkg/integration/components/views.go

@@ -124,6 +124,14 @@ func (self *Views) Menu() *ViewDriver {
 	return self.regularView("menu")
 }
 
+func (self *Views) MenuFilter() *ViewDriver {
+	return self.regularView("menuFilter")
+}
+
+func (self *Views) MenuFilterFrame() *ViewDriver {
+	return self.regularView("menuFilterFrame")
+}
+
 func (self *Views) Confirmation() *ViewDriver {
 	return self.regularView("confirmation")
 }

pkg/integration/types/types.go

@@ -45,6 +45,8 @@ type GuiDriver interface {
 	FocusInAndClick(int, int)
 	Keys() config.KeybindingConfig
 	CurrentContext() types.Context
+	// Whether the terminal's text cursor is currently shown
+	CursorVisible() bool
 	ContextForView(viewName string) types.Context
 	Fail(message string)
 	// These two log methods are for the sake of debugging while testing. There's no need to actually