diff options
Diffstat (limited to 'helix-tui/tests/widgets_block.rs')
| -rw-r--r-- | helix-tui/tests/widgets_block.rs | 213 |
1 files changed, 213 insertions, 0 deletions
diff --git a/helix-tui/tests/widgets_block.rs b/helix-tui/tests/widgets_block.rs new file mode 100644 index 00000000..8aaf905b --- /dev/null +++ b/helix-tui/tests/widgets_block.rs @@ -0,0 +1,213 @@ +use helix_tui::{ + backend::TestBackend, + buffer::Buffer, + layout::Rect, + style::{Color, Style}, + text::Span, + widgets::{Block, Borders}, + Terminal, +}; + +#[test] +fn widgets_block_renders() { + let backend = TestBackend::new(10, 10); + let mut terminal = Terminal::new(backend).unwrap(); + terminal + .draw(|f| { + let block = Block::default() + .title(Span::styled("Title", Style::default().fg(Color::LightBlue))) + .borders(Borders::ALL); + f.render_widget( + block, + Rect { + x: 0, + y: 0, + width: 8, + height: 8, + }, + ); + }) + .unwrap(); + let mut expected = Buffer::with_lines(vec![ + "┌Title─┐ ", + "│ │ ", + "│ │ ", + "│ │ ", + "│ │ ", + "│ │ ", + "│ │ ", + "└──────┘ ", + " ", + " ", + ]); + for x in 1..=5 { + expected.get_mut(x, 0).set_fg(Color::LightBlue); + } + terminal.backend().assert_buffer(&expected); +} + +#[test] +fn widgets_block_renders_on_small_areas() { + let test_case = |block, area: Rect, expected| { + let backend = TestBackend::new(area.width, area.height); + let mut terminal = Terminal::new(backend).unwrap(); + terminal + .draw(|f| { + f.render_widget(block, area); + }) + .unwrap(); + terminal.backend().assert_buffer(&expected); + }; + + let one_cell_test_cases = [ + (Borders::NONE, "T"), + (Borders::LEFT, "│"), + (Borders::TOP, "T"), + (Borders::RIGHT, "│"), + (Borders::BOTTOM, "T"), + (Borders::ALL, "┌"), + ]; + for (borders, symbol) in one_cell_test_cases.iter().cloned() { + test_case( + Block::default().title("Test").borders(borders), + Rect { + x: 0, + y: 0, + width: 0, + height: 0, + }, + Buffer::empty(Rect { + x: 0, + y: 0, + width: 0, + height: 0, + }), + ); + test_case( + Block::default().title("Test").borders(borders), + Rect { + x: 0, + y: 0, + width: 1, + height: 0, + }, + Buffer::empty(Rect { + x: 0, + y: 0, + width: 1, + height: 0, + }), + ); + test_case( + Block::default().title("Test").borders(borders), + Rect { + x: 0, + y: 0, + width: 0, + height: 1, + }, + Buffer::empty(Rect { + x: 0, + y: 0, + width: 0, + height: 1, + }), + ); + test_case( + Block::default().title("Test").borders(borders), + Rect { + x: 0, + y: 0, + width: 1, + height: 1, + }, + Buffer::with_lines(vec![symbol]), + ); + } + test_case( + Block::default().title("Test").borders(Borders::LEFT), + Rect { + x: 0, + y: 0, + width: 4, + height: 1, + }, + Buffer::with_lines(vec!["│Tes"]), + ); + test_case( + Block::default().title("Test").borders(Borders::RIGHT), + Rect { + x: 0, + y: 0, + width: 4, + height: 1, + }, + Buffer::with_lines(vec!["Tes│"]), + ); + test_case( + Block::default().title("Test").borders(Borders::RIGHT), + Rect { + x: 0, + y: 0, + width: 4, + height: 1, + }, + Buffer::with_lines(vec!["Tes│"]), + ); + test_case( + Block::default() + .title("Test") + .borders(Borders::LEFT | Borders::RIGHT), + Rect { + x: 0, + y: 0, + width: 4, + height: 1, + }, + Buffer::with_lines(vec!["│Te│"]), + ); + test_case( + Block::default().title("Test").borders(Borders::TOP), + Rect { + x: 0, + y: 0, + width: 4, + height: 1, + }, + Buffer::with_lines(vec!["Test"]), + ); + test_case( + Block::default().title("Test").borders(Borders::TOP), + Rect { + x: 0, + y: 0, + width: 5, + height: 1, + }, + Buffer::with_lines(vec!["Test─"]), + ); + test_case( + Block::default() + .title("Test") + .borders(Borders::LEFT | Borders::TOP), + Rect { + x: 0, + y: 0, + width: 5, + height: 1, + }, + Buffer::with_lines(vec!["┌Test"]), + ); + test_case( + Block::default() + .title("Test") + .borders(Borders::LEFT | Borders::TOP), + Rect { + x: 0, + y: 0, + width: 6, + height: 1, + }, + Buffer::with_lines(vec!["┌Test─"]), + ); +} |