#![allow(deprecated)] use ratatui::{ backend::TestBackend, buffer::Buffer, layout::Rect, symbols, text::Line, widgets::Tabs, Terminal, }; #[test] fn widgets_tabs_should_not_panic_on_narrow_areas() { let backend = TestBackend::new(1, 1); let mut terminal = Terminal::new(backend).unwrap(); terminal .draw(|f| { let tabs = Tabs::new(["Tab1", "Tab2"].iter().cloned().map(Line::from).collect()); f.render_widget( tabs, Rect { x: 0, y: 0, width: 1, height: 1, }, ); }) .unwrap(); let expected = Buffer::with_lines(vec![" "]); terminal.backend().assert_buffer(&expected); } #[test] fn widgets_tabs_should_truncate_the_last_item() { let backend = TestBackend::new(10, 1); let mut terminal = Terminal::new(backend).unwrap(); terminal .draw(|f| { let tabs = Tabs::new(["Tab1", "Tab2"].iter().cloned().map(Line::from).collect()); f.render_widget( tabs, Rect { x: 0, y: 0, width: 9, height: 1, }, ); }) .unwrap(); let expected = Buffer::with_lines(vec![format!(" Tab1 {} T ", symbols::line::VERTICAL)]); terminal.backend().assert_buffer(&expected); }