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use line_index::{LineCol, LineIndex, TextRange};
#[test]
fn test_line_index() {
let text = "hello\nworld";
let table = [
(00, 0, 0),
(01, 0, 1),
(05, 0, 5),
(06, 1, 0),
(07, 1, 1),
(08, 1, 2),
(10, 1, 4),
(11, 1, 5),
];
let index = LineIndex::new(text);
for (offset, line, col) in table {
assert_eq!(index.line_col(offset.into()), LineCol { line, col });
}
let text = "\nhello\nworld";
let table = [(0, 0, 0), (1, 1, 0), (2, 1, 1), (6, 1, 5), (7, 2, 0)];
let index = LineIndex::new(text);
for (offset, line, col) in table {
assert_eq!(index.line_col(offset.into()), LineCol { line, col });
}
}
#[test]
fn test_char_len() {
assert_eq!('メ'.len_utf8(), 3);
assert_eq!('メ'.len_utf16(), 1);
}
#[test]
fn test_splitlines() {
fn r(lo: u32, hi: u32) -> TextRange {
TextRange::new(lo.into(), hi.into())
}
let text = "a\nbb\nccc\n";
let line_index = LineIndex::new(text);
let actual = line_index.lines(r(0, 9)).collect::<Vec<_>>();
let expected = vec![r(0, 2), r(2, 5), r(5, 9)];
assert_eq!(actual, expected);
let text = "";
let line_index = LineIndex::new(text);
let actual = line_index.lines(r(0, 0)).collect::<Vec<_>>();
let expected = vec![];
assert_eq!(actual, expected);
let text = "\n";
let line_index = LineIndex::new(text);
let actual = line_index.lines(r(0, 1)).collect::<Vec<_>>();
let expected = vec![r(0, 1)];
assert_eq!(actual, expected)
}
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