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-rw-r--r--helix-tui/tests/widgets_block.rs213
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─"]),
+ );
+}