diff --git a/ui/mock.go b/ui/mock.go
index ec06eff..7c7cd07 100644
--- a/ui/mock.go
+++ b/ui/mock.go
@@ -82,6 +82,10 @@ func (m *MockScreen) EnablePaste() {}
 
 func (m *MockScreen) DisablePaste() {}
 
+func (m *MockScreen) EnableFocus() {}
+
+func (m *MockScreen) DisableFocus() {}
+
 func (m *MockScreen) HasMouse() bool {
 	return false
 }
@@ -122,6 +126,12 @@ func (m *MockScreen) Beep() error {
 	return nil
 }
 
+func (m *MockScreen) LockRegion(x, y, width, height int, lock bool) {}
+
+func (m *MockScreen) Tty() (tcell.Tty, bool) {
+	return nil, false
+}
+
 func (m *MockScreen) DumpContents() string {
 	var res string
 	for i := m.y; i < m.h; i++ {