1use std::path::Path;
2use std::str::FromStr;
3
4use crate::common::{parse_break_test, UcdFile};
5use crate::error::Error;
6
7/// A single row in the `auxiliary/LineBreakTest.txt` file.
8///
9/// This file defines tests for the line break algorithm.
10#[derive(Clone, Debug, Default, Eq, PartialEq)]
11pub struct LineBreakTest {
12 /// Each string is a UTF-8 encoded group of codepoints that make up a
13 /// single line.
14 pub lines: Vec<String>,
15 /// A human readable description of this test.
16 pub comment: String,
17}
18
19impl UcdFile for LineBreakTest {
20 fn relative_file_path() -> &'static Path {
21 Path::new("auxiliary/LineBreakTest.txt")
22 }
23}
24
25impl FromStr for LineBreakTest {
26 type Err = Error;
27
28 fn from_str(line: &str) -> Result<LineBreakTest, Error> {
29 let (groups: Vec, comment: String) = parse_break_test(line)?;
30 Ok(LineBreakTest { lines: groups, comment })
31 }
32}
33
34#[cfg(test)]
35mod tests {
36 use super::LineBreakTest;
37
38 #[test]
39 fn parse_test() {
40 let line = "× 1F1F7 × 1F1FA ÷ 1F1F8 × 1F1EA ÷ # × [0.3] REGIONAL INDICATOR SYMBOL LETTER R (RI) × [30.11] REGIONAL INDICATOR SYMBOL LETTER U (RI) ÷ [30.13] REGIONAL INDICATOR SYMBOL LETTER S (RI) × [30.11] REGIONAL INDICATOR SYMBOL LETTER E (RI) ÷ [0.3]";
41
42 let row: LineBreakTest = line.parse().unwrap();
43 assert_eq!(
44 row.lines,
45 vec!["\u{1F1F7}\u{1F1FA}", "\u{1F1F8}\u{1F1EA}",]
46 );
47 assert!(row.comment.ends_with("(RI) ÷ [0.3]"));
48 }
49}
50