Struct TestTerminal 

pub struct TestTerminal { /* private fields */ }

In-memory terminal double for testing.

Records all writes, cursor moves, and cursor visibility changes so tests can assert on the exact ANSI sequences emitted by the renderer.

Implementations

impl TestTerminal

pub fn new(cols: u16, rows: u16) -> Self

Create a new test terminal with the given dimensions.

pub fn written(&self) -> &Vec<String>

All strings written via Terminal::write since creation.

pub fn cursor_moves(&self) -> &Vec<(u16, u16)>

All cursor positions passed to Terminal::move_cursor since creation.

pub fn is_cursor_hidden(&self) -> bool

Whether the cursor was most recently hidden.

Trait Implementations

impl Terminal for TestTerminal

fn start(&mut self) -> Result<()>

Enter raw mode, alternate screen, and hide the cursor.

fn stop(&mut self) -> Result<()>

Leave raw mode, alternate screen, and show the cursor.

fn write(&mut self, data: &str) -> Result<()>

Write raw data to the terminal.

fn size(&self) -> Result<(u16, u16)>

Return the current terminal size as (cols, rows).

fn move_cursor(&mut self, row: u16, col: u16) -> Result<()>

Move the hardware cursor to (row, col).

fn hide_cursor(&mut self) -> Result<()>

Hide the hardware cursor.

fn show_cursor(&mut self) -> Result<()>

Show the hardware cursor.