bendns' repos / helix
Unnamed repository; edit this file 'description' to name the repository.
Diffstat (limited to 'helix-tui/src/backend/test.rs')
-rw-r--r--helix-tui/src/backend/test.rs167
1 files changed, 0 insertions, 167 deletions
diff --git a/helix-tui/src/backend/test.rs b/helix-tui/src/backend/test.rs
deleted file mode 100644
index b048cefc..00000000
--- a/helix-tui/src/backend/test.rs
+++ /dev/null
@@ -1,167 +0,0 @@
-use crate::{
- backend::Backend,
- buffer::{Buffer, Cell},
- terminal::Config,
-};
-use helix_core::unicode::width::UnicodeWidthStr;
-use helix_view::graphics::{CursorKind, Rect};
-use std::{fmt::Write, io};
-
-/// A backend used for the integration tests.
-#[derive(Debug)]
-pub struct TestBackend {
- width: u16,
- buffer: Buffer,
- height: u16,
- cursor: bool,
- pos: (u16, u16),
-}
-
-/// Returns a string representation of the given buffer for debugging purpose.
-fn buffer_view(buffer: &Buffer) -> String {
- let mut view = String::with_capacity(buffer.content.len() + buffer.area.height as usize * 3);
- for cells in buffer.content.chunks(buffer.area.width as usize) {
- let mut overwritten = vec![];
- let mut skip: usize = 0;
- view.push('"');
- for (x, c) in cells.iter().enumerate() {
- if skip == 0 {
- view.push_str(&c.symbol);
- } else {
- overwritten.push((x, &c.symbol))
- }
- skip = std::cmp::max(skip, c.symbol.width()).saturating_sub(1);
- }
- view.push('"');
- if !overwritten.is_empty() {
- write!(
- &mut view,
- " Hidden by multi-width symbols: {:?}",
- overwritten
- )
- .unwrap();
- }
- view.push('\n');
- }
- view
-}
-
-impl TestBackend {
- pub fn new(width: u16, height: u16) -> TestBackend {
- TestBackend {
- width,
- height,
- buffer: Buffer::empty(Rect::new(0, 0, width, height)),
- cursor: false,
- pos: (0, 0),
- }
- }
-
- pub fn buffer(&self) -> &Buffer {
- &self.buffer
- }
-
- pub fn resize(&mut self, width: u16, height: u16) {
- self.buffer.resize(Rect::new(0, 0, width, height));
- self.width = width;
- self.height = height;
- }
-
- pub fn assert_buffer(&self, expected: &Buffer) {
- assert_eq!(expected.area, self.buffer.area);
- let diff = expected.diff(&self.buffer);
- if diff.is_empty() {
- return;
- }
-
- let mut debug_info = String::from("Buffers are not equal");
- debug_info.push('\n');
- debug_info.push_str("Expected:");
- debug_info.push('\n');
- let expected_view = buffer_view(expected);
- debug_info.push_str(&expected_view);
- debug_info.push('\n');
- debug_info.push_str("Got:");
- debug_info.push('\n');
- let view = buffer_view(&self.buffer);
- debug_info.push_str(&view);
- debug_info.push('\n');
-
- debug_info.push_str("Diff:");
- debug_info.push('\n');
- let nice_diff = diff
- .iter()
- .enumerate()
- .map(|(i, (x, y, cell))| {
- let expected_cell = expected.get(*x, *y);
- format!(
- "{}: at ({}, {}) expected {:?} got {:?}",
- i, x, y, expected_cell, cell
- )
- })
- .collect::<Vec<String>>()
- .join("\n");
- debug_info.push_str(&nice_diff);
- panic!("{}", debug_info);
- }
-}
-
-impl Backend for TestBackend {
- fn claim(&mut self) -> Result<(), io::Error> {
- Ok(())
- }
-
- fn reconfigure(&mut self, _config: Config) -> Result<(), io::Error> {
- Ok(())
- }
-
- fn restore(&mut self) -> Result<(), io::Error> {
- Ok(())
- }
-
- fn draw<'a, I>(&mut self, content: I) -> Result<(), io::Error>
- where
- I: Iterator<Item = (u16, u16, &'a Cell)>,
- {
- for (x, y, c) in content {
- self.buffer[(x, y)] = c.clone();
- }
- Ok(())
- }
-
- fn hide_cursor(&mut self) -> Result<(), io::Error> {
- self.cursor = false;
- Ok(())
- }
-
- fn show_cursor(&mut self, _kind: CursorKind) -> Result<(), io::Error> {
- self.cursor = true;
- Ok(())
- }
-
- fn set_cursor(&mut self, x: u16, y: u16) -> Result<(), io::Error> {
- self.pos = (x, y);
- Ok(())
- }
-
- fn clear(&mut self) -> Result<(), io::Error> {
- self.buffer.reset();
- Ok(())
- }
-
- fn size(&self) -> Result<Rect, io::Error> {
- Ok(Rect::new(0, 0, self.width, self.height))
- }
-
- fn flush(&mut self) -> Result<(), io::Error> {
- Ok(())
- }
-
- fn supports_true_color(&self) -> bool {
- false
- }
-
- fn get_theme_mode(&self) -> Option<helix_view::theme::Mode> {
- None
- }
-}