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embedded-various-fonts
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Remove tests and add some documentation 

The tests were copied from embedded-graphics and weren't passing nor
providing much possible value.
pr/update_fontkit
Wesley Moore 4 years ago
parent
10003db2cf
commit
54d8c70e16
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1 changed files with 34 additions and 332 deletions
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  1. 366
      src/lib.rs

366
src/lib.rs
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@ -1,5 +1,30 @@
//! The ProFont programming font. Image data taken from the
//! [ProFont homepage](https://web.archive.org/web/20180412214402/http://tobiasjung.name/profont/)
//! The [ProFont](https://web.archive.org/web/20180412214402/http://tobiasjung.name/profont/)
//! monospace programming font for use with
//! [embedded-graphics](https://github.com/jamwaffles/embedded-graphics). Font data taken from the
//! [ProFont homepage](https://web.archive.org/web/20180412214402/http://tobiasjung.name/profont/).
//!
//! ### Synopsis
//!
//! Assuming `display` is something that implements the [Drawing
//! trait](https://docs.rs/embedded-graphics/0.4.4/embedded_graphics/trait.Drawing.html)
//!
//! ```no_run
//! display.draw(
//! ProFont24Point::render_str("Hello World")
//! .with_stroke(Some(Color::Red))
//! .with_fill(Some(Color::White))
//! .translate(Coord::new(10, 10))
//! .into_iter(),
//! );
//! ```
//!
//! For a more complete example see [the example in the ssd1675
//! crate](https://github.com/wezm/ssd1675/blob/master/examples/raspberry_pi_inky_phat.rs).
//!
//! ### Glyph Coverage
//!
//! This crate provides support for [ISO/IEC 8859-1](https://en.wikipedia.org/wiki/ISO/IEC_8859-1)
//! (latin1), although do note that the font is missing a few glyphs in this range.
extern crate embedded_graphics;
@ -7,9 +32,6 @@ use embedded_graphics::fonts::font_builder::{FontBuilder, FontBuilderConf};
const CHARS_PER_ROW: u32 = 32;
#[cfg(test)]
pub(crate) mod mock_display;
fn char_offset_impl(c: char) -> u32 {
let fallback = '?' as u32 - ' ' as u32;
if c < ' ' {
@ -36,7 +58,7 @@ impl FontBuilderConf for ProFont7PointConf {
}
}
/// The 7 point size.
/// The 7 point size with a character size of 5x9 pixels.
pub type ProFont7Point<'a, C> = FontBuilder<'a, C, ProFont7PointConf>;
#[derive(Debug, Copy, Clone)]
@ -51,7 +73,7 @@ impl FontBuilderConf for ProFont9PointConf {
}
}
/// The 9 point size.
/// The 9 point size with a character size of 6x11 pixels.
pub type ProFont9Point<'a, C> = FontBuilder<'a, C, ProFont9PointConf>;
#[derive(Debug, Copy, Clone)]
@ -66,7 +88,7 @@ impl FontBuilderConf for ProFont10PointConf {
}
}
/// The 10 point size.
/// The 10 point size with a character size of 7x13 pixels.
pub type ProFont10Point<'a, C> = FontBuilder<'a, C, ProFont10PointConf>;
#[derive(Debug, Copy, Clone)]
@ -81,7 +103,7 @@ impl FontBuilderConf for ProFont12PointConf {
}
}
/// The 12 point size.
/// The 12 point size with a character size of 8x15 pixels.
pub type ProFont12Point<'a, C> = FontBuilder<'a, C, ProFont12PointConf>;
#[derive(Debug, Copy, Clone)]
@ -96,7 +118,7 @@ impl FontBuilderConf for ProFont14PointConf {
}
}
/// The 14 point size.
/// The 14 point size with a character size of 10x18 pixels.
pub type ProFont14Point<'a, C> = FontBuilder<'a, C, ProFont14PointConf>;
#[derive(Debug, Copy, Clone)]
@ -111,7 +133,7 @@ impl FontBuilderConf for ProFont18PointConf {
}
}
/// The 18 point size.
/// The 18 point size with a character size of 12x22 pixels.
pub type ProFont18Point<'a, C> = FontBuilder<'a, C, ProFont18PointConf>;
#[derive(Debug, Copy, Clone)]
@ -126,325 +148,5 @@ impl FontBuilderConf for ProFont24PointConf {
}
}
/// The 24 point size.
/// The 24 point size with a character size of 16x30 pixels.
pub type ProFont24Point<'a, C> = FontBuilder<'a, C, ProFont24PointConf>;
#[cfg(test)]
mod tests {
use super::*;
use embedded_graphics::coord::Coord;
use embedded_graphics::dev::TestPixelColor;
use embedded_graphics::fonts::Font;
use mock_display::Display;
use embedded_graphics::style::Style;
use embedded_graphics::style::WithStyle;
use embedded_graphics::transform::Transform;
use embedded_graphics::unsignedcoord::UnsignedCoord;
use embedded_graphics::Drawing;
#[test]
fn off_screen_text_does_not_infinite_loop() {
let text: ProFont9Point<TestPixelColor> = ProFont9Point::render_str("Hello World!")
.with_style(Style::with_stroke(1u8.into()))
.translate(Coord::new(5, -10));
let mut it = text.into_iter();
assert_eq!(it.next(), None);
}
#[test]
fn unstroked_text_does_not_infinite_loop() {
let text: ProFont9Point<TestPixelColor> = ProFont9Point::render_str("Hello World!")
.with_style(Style::with_stroke(1u8.into()))
.translate(Coord::new(5, -10));
let mut it = text.into_iter();
assert_eq!(it.next(), None);
}
#[test]
fn text_dimensions() {
let hello: ProFont9Point<TestPixelColor> = ProFont9Point::render_str("Hello World!");
let empty: ProFont9Point<TestPixelColor> = ProFont9Point::render_str("");
assert_eq!(hello.dimensions(), UnsignedCoord::new(72, 8));
assert_eq!(empty.dimensions(), UnsignedCoord::new(0, 0));
}
#[test]
fn default_style() {
let mut display_default = Display::default();
display_default.draw(ProFont9Point::render_str("Mm").into_iter());
let mut display_full_style = Display::default();
display_full_style.draw(
ProFont9Point::render_str("Mm")
.with_stroke(Some(1u8.into()))
.with_fill(Some(0u8.into()))
.into_iter(),
);
let mut display_stroke = Display::default();
display_stroke.draw(
ProFont9Point::render_str("Mm")
.with_stroke(Some(1u8.into()))
.into_iter(),
);
let mut display_fill = Display::default();
display_fill.draw(
ProFont9Point::render_str("Mm")
.with_fill(Some(0u8.into()))
.into_iter(),
);
assert_eq!(display_default, display_full_style);
assert_eq!(display_default, display_stroke);
assert_eq!(display_default, display_fill);
}
#[test]
fn correct_m() {
let mut display = Display::default();
display.draw(
ProFont9Point::render_str("Mm")
.with_stroke(Some(1u8.into()))
.into_iter(),
);
assert_eq!(
display,
Display([
[1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[1, 1, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[1, 0, 1, 0, 1, 0, 1, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[1, 0, 0, 0, 1, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[1, 0, 0, 0, 1, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[1, 0, 0, 0, 1, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
//
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
])
);
}
#[test]
fn correct_inverse_coloured_m() {
let mut display = Display::default();
display.draw(
ProFont9Point::render_str("Mm")
.with_stroke(Some(0u8.into()))
.with_fill(Some(1u8.into()))
.into_iter(),
);
assert_eq!(
display,
Display([
[0, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 1, 0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 1, 1, 1, 0, 1, 0, 1, 1, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 1, 1, 1, 0, 1, 0, 1, 1, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 1, 1, 1, 0, 1, 0, 1, 1, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
//
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
])
);
}
// tests if black on white has really the same behaviour as white on black
#[test]
fn compare_inverse_coloured_m() {
let mut display_inverse = Display::default();
display_inverse.draw(
ProFont9Point::render_str("Mm")
.with_stroke(Some(0u8.into()))
.with_fill(Some(1u8.into()))
.into_iter(),
);
let mut display_normal = Display::default();
display_normal.draw(
ProFont9Point::render_str("Mm")
.with_stroke(Some(1u8.into()))
.with_fill(Some(0u8.into()))
.into_iter(),
);
for (x, y) in display_inverse.0[0..8]
.iter()
.zip(display_normal.0[0..8].iter())
{
for (x2, y2) in x[0..12].iter().zip(y[0..12].iter()) {
assert_ne!(x2, y2);
}
}
}
#[test]
fn correct_ascii_borders() {
let mut display = Display::default();
display.draw(
ProFont9Point::render_str(" ~")
.with_stroke(Some(1u8.into()))
.into_iter(),
);
assert_eq!(
display,
Display([
[0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
//
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
])
);
}
#[test]
fn correct_dollar_y() {
let mut display = Display::default();
display.draw(
ProFont9Point::render_str("$y")
.with_stroke(Some(1u8.into()))
.into_iter(),
);
assert_eq!(
display,
Display([
[0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[1, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 1, 1, 1, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[1, 1, 1, 1, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
//
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
])
);
}
#[test]
fn correct_latin1() {
let mut display = Display::default();
display.draw(
ProFont9Point::render_str("\u{00A0}ÿ")
.with_stroke(Some(1u8.into()))
.into_iter(),
);
assert_eq!(
display,
Display([
[0, 0, 1, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
//
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
])
);
}
#[test]
fn dont_panic() {
#[cfg_attr(rustfmt, rustfmt_skip)]
let two_question_marks = Display(
[
[0, 1, 1, 1, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[1, 0, 0, 0, 1, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
//
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
]
);
let mut display = Display::default();
display.draw(
ProFont9Point::render_str("\0\n")
.with_stroke(Some(1u8.into()))
.into_iter(),
);
assert_eq!(display, two_question_marks);
let mut display = Display::default();
display.draw(
ProFont9Point::render_str("\x7F\u{A0}")
.with_stroke(Some(1u8.into()))
.into_iter(),
);
assert_eq!(display, two_question_marks);
let mut display = Display::default();
display.draw(
ProFont9Point::render_str("Ā💣")
.with_stroke(Some(1u8.into()))
.into_iter(),
);
assert_eq!(display, two_question_marks);
}
}

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