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