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feat(borders): Add FULL and EMPTY border sets (#1182)

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`border::FULL` uses a full block symbol, while `border::EMPTY` uses an
empty space. This is useful for when you need to allocate space for the
border and apply the border style to a block without actually drawing a
border. This makes it possible to style the entire title area or a block
rather than just the title content.

```rust
use ratatui::{symbols::border, widgets::Block};
let block = Block::bordered().title("Title").border_set(border::FULL);
let block = Block::bordered().title("Title").border_set(border::EMPTY);
```
This commit is contained in:
Josh McKinney 2024-06-17 17:59:24 -07:00 committed by GitHub
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commit 1365620606
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2 changed files with 505 additions and 237 deletions
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238
src/symbols.rs
View file

@ -1,5 +1,6 @@
use strum::{Display, EnumString};
pub mod border;
pub mod line;
pub mod block {
@ -116,243 +117,6 @@ pub mod bar {
};
}
pub mod border {
use super::line;
#[derive(Debug, Clone, Copy, Eq, PartialEq, Hash)]
pub struct Set {
pub top_left: &'static str,
pub top_right: &'static str,
pub bottom_left: &'static str,
pub bottom_right: &'static str,
pub vertical_left: &'static str,
pub vertical_right: &'static str,
pub horizontal_top: &'static str,
pub horizontal_bottom: &'static str,
}
impl Default for Set {
fn default() -> Self {
PLAIN
}
}
/// Border Set with a single line width
///
/// ```text
/// ┌─────┐
/// │xxxxx│
/// │xxxxx│
/// └─────┘
pub const PLAIN: Set = Set {
top_left: line::NORMAL.top_left,
top_right: line::NORMAL.top_right,
bottom_left: line::NORMAL.bottom_left,
bottom_right: line::NORMAL.bottom_right,
vertical_left: line::NORMAL.vertical,
vertical_right: line::NORMAL.vertical,
horizontal_top: line::NORMAL.horizontal,
horizontal_bottom: line::NORMAL.horizontal,
};
/// Border Set with a single line width and rounded corners
///
/// ```text
/// ╭─────╮
/// │xxxxx│
/// │xxxxx│
/// ╰─────╯
pub const ROUNDED: Set = Set {
top_left: line::ROUNDED.top_left,
top_right: line::ROUNDED.top_right,
bottom_left: line::ROUNDED.bottom_left,
bottom_right: line::ROUNDED.bottom_right,
vertical_left: line::ROUNDED.vertical,
vertical_right: line::ROUNDED.vertical,
horizontal_top: line::ROUNDED.horizontal,
horizontal_bottom: line::ROUNDED.horizontal,
};
/// Border Set with a double line width
///
/// ```text
/// ╔═════╗
/// ║xxxxx║
/// ║xxxxx║
/// ╚═════╝
pub const DOUBLE: Set = Set {
top_left: line::DOUBLE.top_left,
top_right: line::DOUBLE.top_right,
bottom_left: line::DOUBLE.bottom_left,
bottom_right: line::DOUBLE.bottom_right,
vertical_left: line::DOUBLE.vertical,
vertical_right: line::DOUBLE.vertical,
horizontal_top: line::DOUBLE.horizontal,
horizontal_bottom: line::DOUBLE.horizontal,
};
/// Border Set with a thick line width
///
/// ```text
/// ┏━━━━━┓
/// ┃xxxxx┃
/// ┃xxxxx┃
/// ┗━━━━━┛
pub const THICK: Set = Set {
top_left: line::THICK.top_left,
top_right: line::THICK.top_right,
bottom_left: line::THICK.bottom_left,
bottom_right: line::THICK.bottom_right,
vertical_left: line::THICK.vertical,
vertical_right: line::THICK.vertical,
horizontal_top: line::THICK.horizontal,
horizontal_bottom: line::THICK.horizontal,
};
pub const QUADRANT_TOP_LEFT: &str = "▘";
pub const QUADRANT_TOP_RIGHT: &str = "▝";
pub const QUADRANT_BOTTOM_LEFT: &str = "▖";
pub const QUADRANT_BOTTOM_RIGHT: &str = "▗";
pub const QUADRANT_TOP_HALF: &str = "▀";
pub const QUADRANT_BOTTOM_HALF: &str = "▄";
pub const QUADRANT_LEFT_HALF: &str = "▌";
pub const QUADRANT_RIGHT_HALF: &str = "▐";
pub const QUADRANT_TOP_LEFT_BOTTOM_LEFT_BOTTOM_RIGHT: &str = "▙";
pub const QUADRANT_TOP_LEFT_TOP_RIGHT_BOTTOM_LEFT: &str = "▛";
pub const QUADRANT_TOP_LEFT_TOP_RIGHT_BOTTOM_RIGHT: &str = "▜";
pub const QUADRANT_TOP_RIGHT_BOTTOM_LEFT_BOTTOM_RIGHT: &str = "▟";
pub const QUADRANT_TOP_LEFT_BOTTOM_RIGHT: &str = "▚";
pub const QUADRANT_TOP_RIGHT_BOTTOM_LEFT: &str = "▞";
pub const QUADRANT_BLOCK: &str = "█";
/// Quadrant used for setting a border outside a block by one half cell "pixel".
///
/// ```text
/// ▛▀▀▀▀▀▜
/// ▌xxxxx▐
/// ▌xxxxx▐
/// ▙▄▄▄▄▄▟
/// ```
pub const QUADRANT_OUTSIDE: Set = Set {
top_left: QUADRANT_TOP_LEFT_TOP_RIGHT_BOTTOM_LEFT,
top_right: QUADRANT_TOP_LEFT_TOP_RIGHT_BOTTOM_RIGHT,
bottom_left: QUADRANT_TOP_LEFT_BOTTOM_LEFT_BOTTOM_RIGHT,
bottom_right: QUADRANT_TOP_RIGHT_BOTTOM_LEFT_BOTTOM_RIGHT,
vertical_left: QUADRANT_LEFT_HALF,
vertical_right: QUADRANT_RIGHT_HALF,
horizontal_top: QUADRANT_TOP_HALF,
horizontal_bottom: QUADRANT_BOTTOM_HALF,
};
/// Quadrant used for setting a border inside a block by one half cell "pixel".
///
/// ```text
/// ▗▄▄▄▄▄▖
/// ▐xxxxx▌
/// ▐xxxxx▌
/// ▝▀▀▀▀▀▘
/// ```
pub const QUADRANT_INSIDE: Set = Set {
top_right: QUADRANT_BOTTOM_LEFT,
top_left: QUADRANT_BOTTOM_RIGHT,
bottom_right: QUADRANT_TOP_LEFT,
bottom_left: QUADRANT_TOP_RIGHT,
vertical_left: QUADRANT_RIGHT_HALF,
vertical_right: QUADRANT_LEFT_HALF,
horizontal_top: QUADRANT_BOTTOM_HALF,
horizontal_bottom: QUADRANT_TOP_HALF,
};
pub const ONE_EIGHTH_TOP_EIGHT: &str = "▔";
pub const ONE_EIGHTH_BOTTOM_EIGHT: &str = "▁";
pub const ONE_EIGHTH_LEFT_EIGHT: &str = "▏";
pub const ONE_EIGHTH_RIGHT_EIGHT: &str = "▕";
/// Wide border set based on McGugan box technique
///
/// ```text
/// ▁▁▁▁▁▁▁
/// ▏xxxxx▕
/// ▏xxxxx▕
/// ▔▔▔▔▔▔▔
/// ```
#[allow(clippy::doc_markdown)]
pub const ONE_EIGHTH_WIDE: Set = Set {
top_right: ONE_EIGHTH_BOTTOM_EIGHT,
top_left: ONE_EIGHTH_BOTTOM_EIGHT,
bottom_right: ONE_EIGHTH_TOP_EIGHT,
bottom_left: ONE_EIGHTH_TOP_EIGHT,
vertical_left: ONE_EIGHTH_LEFT_EIGHT,
vertical_right: ONE_EIGHTH_RIGHT_EIGHT,
horizontal_top: ONE_EIGHTH_BOTTOM_EIGHT,
horizontal_bottom: ONE_EIGHTH_TOP_EIGHT,
};
/// Tall border set based on McGugan box technique
///
/// ```text
/// ▕▔▔▏
/// ▕xx▏
/// ▕xx▏
/// ▕▁▁▏
/// ```
#[allow(clippy::doc_markdown)]
pub const ONE_EIGHTH_TALL: Set = Set {
top_right: ONE_EIGHTH_LEFT_EIGHT,
top_left: ONE_EIGHTH_RIGHT_EIGHT,
bottom_right: ONE_EIGHTH_LEFT_EIGHT,
bottom_left: ONE_EIGHTH_RIGHT_EIGHT,
vertical_left: ONE_EIGHTH_RIGHT_EIGHT,
vertical_right: ONE_EIGHTH_LEFT_EIGHT,
horizontal_top: ONE_EIGHTH_TOP_EIGHT,
horizontal_bottom: ONE_EIGHTH_BOTTOM_EIGHT,
};
/// Wide proportional (visually equal width and height) border with using set of quadrants.
///
/// The border is created by using half blocks for top and bottom, and full
/// blocks for right and left sides to make horizontal and vertical borders seem equal.
///
/// ```text
/// ▄▄▄▄
/// █xx█
/// █xx█
/// ▀▀▀▀
/// ```
pub const PROPORTIONAL_WIDE: Set = Set {
top_right: QUADRANT_BOTTOM_HALF,
top_left: QUADRANT_BOTTOM_HALF,
bottom_right: QUADRANT_TOP_HALF,
bottom_left: QUADRANT_TOP_HALF,
vertical_left: QUADRANT_BLOCK,
vertical_right: QUADRANT_BLOCK,
horizontal_top: QUADRANT_BOTTOM_HALF,
horizontal_bottom: QUADRANT_TOP_HALF,
};
/// Tall proportional (visually equal width and height) border with using set of quadrants.
///
/// The border is created by using full blocks for all sides, except for the top and bottom,
/// which use half blocks to make horizontal and vertical borders seem equal.
///
/// ```text
/// ▕█▀▀█
/// ▕█xx█
/// ▕█xx█
/// ▕█▄▄█
/// ```
pub const PROPORTIONAL_TALL: Set = Set {
top_right: QUADRANT_BLOCK,
top_left: QUADRANT_BLOCK,
bottom_right: QUADRANT_BLOCK,
bottom_left: QUADRANT_BLOCK,
vertical_left: QUADRANT_BLOCK,
vertical_right: QUADRANT_BLOCK,
horizontal_top: QUADRANT_TOP_HALF,
horizontal_bottom: QUADRANT_BOTTOM_HALF,
};
}
pub const DOT: &str = "•";
pub mod braille {

504
src/symbols/border.rs Normal file
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@ -0,0 +1,504 @@
use super::{block, line};
#[derive(Debug, Clone, Copy, Eq, PartialEq, Hash)]
pub struct Set {
pub top_left: &'static str,
pub top_right: &'static str,
pub bottom_left: &'static str,
pub bottom_right: &'static str,
pub vertical_left: &'static str,
pub vertical_right: &'static str,
pub horizontal_top: &'static str,
pub horizontal_bottom: &'static str,
}
impl Default for Set {
fn default() -> Self {
PLAIN
}
}
/// Border Set with a single line width
///
/// ```text
/// ┌─────┐
/// │xxxxx│
/// │xxxxx│
/// └─────┘
pub const PLAIN: Set = Set {
top_left: line::NORMAL.top_left,
top_right: line::NORMAL.top_right,
bottom_left: line::NORMAL.bottom_left,
bottom_right: line::NORMAL.bottom_right,
vertical_left: line::NORMAL.vertical,
vertical_right: line::NORMAL.vertical,
horizontal_top: line::NORMAL.horizontal,
horizontal_bottom: line::NORMAL.horizontal,
};
/// Border Set with a single line width and rounded corners
///
/// ```text
/// ╭─────╮
/// │xxxxx│
/// │xxxxx│
/// ╰─────╯
pub const ROUNDED: Set = Set {
top_left: line::ROUNDED.top_left,
top_right: line::ROUNDED.top_right,
bottom_left: line::ROUNDED.bottom_left,
bottom_right: line::ROUNDED.bottom_right,
vertical_left: line::ROUNDED.vertical,
vertical_right: line::ROUNDED.vertical,
horizontal_top: line::ROUNDED.horizontal,
horizontal_bottom: line::ROUNDED.horizontal,
};
/// Border Set with a double line width
///
/// ```text
/// ╔═════╗
/// ║xxxxx║
/// ║xxxxx║
/// ╚═════╝
pub const DOUBLE: Set = Set {
top_left: line::DOUBLE.top_left,
top_right: line::DOUBLE.top_right,
bottom_left: line::DOUBLE.bottom_left,
bottom_right: line::DOUBLE.bottom_right,
vertical_left: line::DOUBLE.vertical,
vertical_right: line::DOUBLE.vertical,
horizontal_top: line::DOUBLE.horizontal,
horizontal_bottom: line::DOUBLE.horizontal,
};
/// Border Set with a thick line width
///
/// ```text
/// ┏━━━━━┓
/// ┃xxxxx┃
/// ┃xxxxx┃
/// ┗━━━━━┛
pub const THICK: Set = Set {
top_left: line::THICK.top_left,
top_right: line::THICK.top_right,
bottom_left: line::THICK.bottom_left,
bottom_right: line::THICK.bottom_right,
vertical_left: line::THICK.vertical,
vertical_right: line::THICK.vertical,
horizontal_top: line::THICK.horizontal,
horizontal_bottom: line::THICK.horizontal,
};
pub const QUADRANT_TOP_LEFT: &str = "▘";
pub const QUADRANT_TOP_RIGHT: &str = "▝";
pub const QUADRANT_BOTTOM_LEFT: &str = "▖";
pub const QUADRANT_BOTTOM_RIGHT: &str = "▗";
pub const QUADRANT_TOP_HALF: &str = "▀";
pub const QUADRANT_BOTTOM_HALF: &str = "▄";
pub const QUADRANT_LEFT_HALF: &str = "▌";
pub const QUADRANT_RIGHT_HALF: &str = "▐";
pub const QUADRANT_TOP_LEFT_BOTTOM_LEFT_BOTTOM_RIGHT: &str = "▙";
pub const QUADRANT_TOP_LEFT_TOP_RIGHT_BOTTOM_LEFT: &str = "▛";
pub const QUADRANT_TOP_LEFT_TOP_RIGHT_BOTTOM_RIGHT: &str = "▜";
pub const QUADRANT_TOP_RIGHT_BOTTOM_LEFT_BOTTOM_RIGHT: &str = "▟";
pub const QUADRANT_TOP_LEFT_BOTTOM_RIGHT: &str = "▚";
pub const QUADRANT_TOP_RIGHT_BOTTOM_LEFT: &str = "▞";
pub const QUADRANT_BLOCK: &str = "█";
/// Quadrant used for setting a border outside a block by one half cell "pixel".
///
/// ```text
/// ▛▀▀▀▀▀▜
/// ▌xxxxx▐
/// ▌xxxxx▐
/// ▙▄▄▄▄▄▟
/// ```
pub const QUADRANT_OUTSIDE: Set = Set {
top_left: QUADRANT_TOP_LEFT_TOP_RIGHT_BOTTOM_LEFT,
top_right: QUADRANT_TOP_LEFT_TOP_RIGHT_BOTTOM_RIGHT,
bottom_left: QUADRANT_TOP_LEFT_BOTTOM_LEFT_BOTTOM_RIGHT,
bottom_right: QUADRANT_TOP_RIGHT_BOTTOM_LEFT_BOTTOM_RIGHT,
vertical_left: QUADRANT_LEFT_HALF,
vertical_right: QUADRANT_RIGHT_HALF,
horizontal_top: QUADRANT_TOP_HALF,
horizontal_bottom: QUADRANT_BOTTOM_HALF,
};
/// Quadrant used for setting a border inside a block by one half cell "pixel".
///
/// ```text
/// ▗▄▄▄▄▄▖
/// ▐xxxxx▌
/// ▐xxxxx▌
/// ▝▀▀▀▀▀▘
/// ```
pub const QUADRANT_INSIDE: Set = Set {
top_right: QUADRANT_BOTTOM_LEFT,
top_left: QUADRANT_BOTTOM_RIGHT,
bottom_right: QUADRANT_TOP_LEFT,
bottom_left: QUADRANT_TOP_RIGHT,
vertical_left: QUADRANT_RIGHT_HALF,
vertical_right: QUADRANT_LEFT_HALF,
horizontal_top: QUADRANT_BOTTOM_HALF,
horizontal_bottom: QUADRANT_TOP_HALF,
};
pub const ONE_EIGHTH_TOP_EIGHT: &str = "▔";
pub const ONE_EIGHTH_BOTTOM_EIGHT: &str = "▁";
pub const ONE_EIGHTH_LEFT_EIGHT: &str = "▏";
pub const ONE_EIGHTH_RIGHT_EIGHT: &str = "▕";
/// Wide border set based on McGugan box technique
///
/// ```text
/// ▁▁▁▁▁▁▁
/// ▏xxxxx▕
/// ▏xxxxx▕
/// ▔▔▔▔▔▔▔
/// ```
#[allow(clippy::doc_markdown)]
pub const ONE_EIGHTH_WIDE: Set = Set {
top_right: ONE_EIGHTH_BOTTOM_EIGHT,
top_left: ONE_EIGHTH_BOTTOM_EIGHT,
bottom_right: ONE_EIGHTH_TOP_EIGHT,
bottom_left: ONE_EIGHTH_TOP_EIGHT,
vertical_left: ONE_EIGHTH_LEFT_EIGHT,
vertical_right: ONE_EIGHTH_RIGHT_EIGHT,
horizontal_top: ONE_EIGHTH_BOTTOM_EIGHT,
horizontal_bottom: ONE_EIGHTH_TOP_EIGHT,
};
/// Tall border set based on McGugan box technique
///
/// ```text
/// ▕▔▔▏
/// ▕xx▏
/// ▕xx▏
/// ▕▁▁▏
/// ```
#[allow(clippy::doc_markdown)]
pub const ONE_EIGHTH_TALL: Set = Set {
top_right: ONE_EIGHTH_LEFT_EIGHT,
top_left: ONE_EIGHTH_RIGHT_EIGHT,
bottom_right: ONE_EIGHTH_LEFT_EIGHT,
bottom_left: ONE_EIGHTH_RIGHT_EIGHT,
vertical_left: ONE_EIGHTH_RIGHT_EIGHT,
vertical_right: ONE_EIGHTH_LEFT_EIGHT,
horizontal_top: ONE_EIGHTH_TOP_EIGHT,
horizontal_bottom: ONE_EIGHTH_BOTTOM_EIGHT,
};
/// Wide proportional (visually equal width and height) border with using set of quadrants.
///
/// The border is created by using half blocks for top and bottom, and full
/// blocks for right and left sides to make horizontal and vertical borders seem equal.
///
/// ```text
/// ▄▄▄▄
/// █xx█
/// █xx█
/// ▀▀▀▀
/// ```
pub const PROPORTIONAL_WIDE: Set = Set {
top_right: QUADRANT_BOTTOM_HALF,
top_left: QUADRANT_BOTTOM_HALF,
bottom_right: QUADRANT_TOP_HALF,
bottom_left: QUADRANT_TOP_HALF,
vertical_left: QUADRANT_BLOCK,
vertical_right: QUADRANT_BLOCK,
horizontal_top: QUADRANT_BOTTOM_HALF,
horizontal_bottom: QUADRANT_TOP_HALF,
};
/// Tall proportional (visually equal width and height) border with using set of quadrants.
///
/// The border is created by using full blocks for all sides, except for the top and bottom,
/// which use half blocks to make horizontal and vertical borders seem equal.
///
/// ```text
/// ▕█▀▀█
/// ▕█xx█
/// ▕█xx█
/// ▕█▄▄█
/// ```
pub const PROPORTIONAL_TALL: Set = Set {
top_right: QUADRANT_BLOCK,
top_left: QUADRANT_BLOCK,
bottom_right: QUADRANT_BLOCK,
bottom_left: QUADRANT_BLOCK,
vertical_left: QUADRANT_BLOCK,
vertical_right: QUADRANT_BLOCK,
horizontal_top: QUADRANT_TOP_HALF,
horizontal_bottom: QUADRANT_BOTTOM_HALF,
};
/// Solid border set
///
/// The border is created by using full blocks for all sides.
///
/// ```text
/// ████
/// █xx█
/// █xx█
/// ████
pub const FULL: Set = Set {
top_left: block::FULL,
top_right: block::FULL,
bottom_left: block::FULL,
bottom_right: block::FULL,
vertical_left: block::FULL,
vertical_right: block::FULL,
horizontal_top: block::FULL,
horizontal_bottom: block::FULL,
};
/// Empty border set
///
/// The border is created by using empty strings for all sides.
///
/// This is useful for ensuring that the border style is applied to a border on a block with a title
/// without actually drawing a border.
///
/// ░ Example
///
/// `░` represents the content in the area not covered by the border to make it easier to see the
/// blank symbols.
///
/// ```text
/// ░░░░░░░░
/// ░░ ░░
/// ░░ ░░ ░░
/// ░░ ░░ ░░
/// ░░ ░░
/// ░░░░░░░░
/// ```
pub const EMPTY: Set = Set {
top_left: " ",
top_right: " ",
bottom_left: " ",
bottom_right: " ",
vertical_left: " ",
vertical_right: " ",
horizontal_top: " ",
horizontal_bottom: " ",
};
#[cfg(test)]
mod tests {
use indoc::{formatdoc, indoc};
use super::*;
#[test]
fn default() {
assert_eq!(Set::default(), PLAIN);
}
/// A helper function to render a border set to a string.
///
/// '░' (U+2591 Light Shade) is used as a placeholder for empty space to make it easier to see
/// the size of the border symbols.
fn render(set: Set) -> String {
formatdoc!(
"░░░░░░
░{}{}{}{}░
░{}░░{}░
░{}░░{}░
░{}{}{}{}░
░░░░░░",
set.top_left,
set.horizontal_top,
set.horizontal_top,
set.top_right,
set.vertical_left,
set.vertical_right,
set.vertical_left,
set.vertical_right,
set.bottom_left,
set.horizontal_bottom,
set.horizontal_bottom,
set.bottom_right
)
}
#[test]
fn plain() {
assert_eq!(
render(PLAIN),
indoc!(
"░░░░░░
░┌──┐░
░│░░│░
░│░░│░
░└──┘░
░░░░░░"
)
);
}
#[test]
fn rounded() {
assert_eq!(
render(ROUNDED),
indoc!(
"░░░░░░
░╭──╮░
░│░░│░
░│░░│░
░╰──╯░
░░░░░░"
)
);
}
#[test]
fn double() {
assert_eq!(
render(DOUBLE),
indoc!(
"░░░░░░
░╔══╗░
░║░░║░
░║░░║░
░╚══╝░
░░░░░░"
)
);
}
#[test]
fn thick() {
assert_eq!(
render(THICK),
indoc!(
"░░░░░░
░┏━━┓░
░┃░░┃░
░┃░░┃░
░┗━━┛░
░░░░░░"
)
);
}
#[test]
fn quadrant_outside() {
assert_eq!(
render(QUADRANT_OUTSIDE),
indoc!(
"░░░░░░
░▛▀▀▜░
░▌░░▐░
░▌░░▐░
░▙▄▄▟░
░░░░░░"
)
);
}
#[test]
fn quadrant_inside() {
assert_eq!(
render(QUADRANT_INSIDE),
indoc!(
"░░░░░░
░▗▄▄▖░
░▐░░▌░
░▐░░▌░
░▝▀▀▘░
░░░░░░"
)
);
}
#[test]
fn one_eighth_wide() {
assert_eq!(
render(ONE_EIGHTH_WIDE),
indoc!(
"░░░░░░
░▁▁▁▁░
░▏░░▕░
░▏░░▕░
░▔▔▔▔░
░░░░░░"
)
);
}
#[test]
fn one_eighth_tall() {
assert_eq!(
render(ONE_EIGHTH_TALL),
indoc!(
"░░░░░░
░▕▔▔▏░
░▕░░▏░
░▕░░▏░
░▕▁▁▏░
░░░░░░"
)
);
}
#[test]
fn proportional_wide() {
assert_eq!(
render(PROPORTIONAL_WIDE),
indoc!(
"░░░░░░
░▄▄▄▄░
░█░░█░
░█░░█░
░▀▀▀▀░
░░░░░░"
)
);
}
#[test]
fn proportional_tall() {
assert_eq!(
render(PROPORTIONAL_TALL),
indoc!(
"░░░░░░
░█▀▀█░
░█░░█░
░█░░█░
░█▄▄█░
░░░░░░"
)
);
}
#[test]
fn full() {
assert_eq!(
render(FULL),
indoc!(
"░░░░░░
░████░
░█░░█░
░█░░█░
░████░
░░░░░░"
)
);
}
#[test]
fn empty() {
assert_eq!(
render(EMPTY),
indoc!(
"░░░░░░
░ ░
░ ░░ ░
░ ░░ ░
░ ░
░░░░░░"
)
);
}
}