| 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) |
| } |