| use std::error::Error; |
| use tui::{ |
| backend::{Backend, TestBackend}, |
| layout::Rect, |
| widgets::Paragraph, |
| Terminal, |
| }; |
| |
| #[test] |
| fn terminal_buffer_size_should_be_limited() { |
| let backend = TestBackend::new(400, 400); |
| let terminal = Terminal::new(backend).unwrap(); |
| let size = terminal.backend().size().unwrap(); |
| assert_eq!(size.width, 255); |
| assert_eq!(size.height, 255); |
| } |
| |
| #[test] |
| fn terminal_draw_returns_the_completed_frame() -> Result<(), Box<dyn Error>> { |
| let backend = TestBackend::new(10, 10); |
| let mut terminal = Terminal::new(backend)?; |
| let frame = terminal.draw(|f| { |
| let paragrah = Paragraph::new("Test"); |
| f.render_widget(paragrah, f.size()); |
| })?; |
| assert_eq!(frame.buffer.get(0, 0).symbol, "T"); |
| assert_eq!(frame.area, Rect::new(0, 0, 10, 10)); |
| terminal.backend_mut().resize(8, 8); |
| let frame = terminal.draw(|f| { |
| let paragrah = Paragraph::new("test"); |
| f.render_widget(paragrah, f.size()); |
| })?; |
| assert_eq!(frame.buffer.get(0, 0).symbol, "t"); |
| assert_eq!(frame.area, Rect::new(0, 0, 8, 8)); |
| Ok(()) |
| } |