use super::*; #[test] fn test_line_index() { let text = "hello\nworld"; let index = LineIndex::new(text); assert_eq!(index.line_col(0.into()), LineCol { line: 0, col_utf16: 0 }); assert_eq!(index.line_col(1.into()), LineCol { line: 0, col_utf16: 1 }); assert_eq!(index.line_col(5.into()), LineCol { line: 0, col_utf16: 5 }); assert_eq!(index.line_col(6.into()), LineCol { line: 1, col_utf16: 0 }); assert_eq!(index.line_col(7.into()), LineCol { line: 1, col_utf16: 1 }); assert_eq!(index.line_col(8.into()), LineCol { line: 1, col_utf16: 2 }); assert_eq!(index.line_col(10.into()), LineCol { line: 1, col_utf16: 4 }); assert_eq!(index.line_col(11.into()), LineCol { line: 1, col_utf16: 5 }); assert_eq!(index.line_col(12.into()), LineCol { line: 1, col_utf16: 6 }); let text = "\nhello\nworld"; let index = LineIndex::new(text); assert_eq!(index.line_col(0.into()), LineCol { line: 0, col_utf16: 0 }); assert_eq!(index.line_col(1.into()), LineCol { line: 1, col_utf16: 0 }); assert_eq!(index.line_col(2.into()), LineCol { line: 1, col_utf16: 1 }); assert_eq!(index.line_col(6.into()), LineCol { line: 1, col_utf16: 5 }); assert_eq!(index.line_col(7.into()), LineCol { line: 2, col_utf16: 0 }); } #[test] fn test_char_len() { assert_eq!('メ'.len_utf8(), 3); assert_eq!('メ'.len_utf16(), 1); } #[test] fn test_empty_index() { let col_index = LineIndex::new( " const C: char = 'x'; ", ); assert_eq!(col_index.utf16_lines.len(), 0); } #[test] fn test_single_char() { let col_index = LineIndex::new( " const C: char = 'メ'; ", ); assert_eq!(col_index.utf16_lines.len(), 1); assert_eq!(col_index.utf16_lines[&1].len(), 1); assert_eq!(col_index.utf16_lines[&1][0], Utf16Char { start: 17.into(), end: 20.into() }); // UTF-8 to UTF-16, no changes assert_eq!(col_index.utf8_to_utf16_col(1, 15.into()), 15); // UTF-8 to UTF-16 assert_eq!(col_index.utf8_to_utf16_col(1, 22.into()), 20); // UTF-16 to UTF-8, no changes assert_eq!(col_index.utf16_to_utf8_col(1, 15), TextSize::from(15)); // UTF-16 to UTF-8 assert_eq!(col_index.utf16_to_utf8_col(1, 19), TextSize::from(21)); let col_index = LineIndex::new("a𐐏b"); assert_eq!(col_index.utf16_to_utf8_col(0, 3), TextSize::from(5)); } #[test] fn test_string() { let col_index = LineIndex::new( " const C: char = \"メ メ\"; ", ); assert_eq!(col_index.utf16_lines.len(), 1); assert_eq!(col_index.utf16_lines[&1].len(), 2); assert_eq!(col_index.utf16_lines[&1][0], Utf16Char { start: 17.into(), end: 20.into() }); assert_eq!(col_index.utf16_lines[&1][1], Utf16Char { start: 21.into(), end: 24.into() }); // UTF-8 to UTF-16 assert_eq!(col_index.utf8_to_utf16_col(1, 15.into()), 15); assert_eq!(col_index.utf8_to_utf16_col(1, 21.into()), 19); assert_eq!(col_index.utf8_to_utf16_col(1, 25.into()), 21); assert!(col_index.utf8_to_utf16_col(2, 15.into()) == 15); // UTF-16 to UTF-8 assert_eq!(col_index.utf16_to_utf8_col(1, 15), TextSize::from(15)); // メ UTF-8: 0xE3 0x83 0xA1, UTF-16: 0x30E1 assert_eq!(col_index.utf16_to_utf8_col(1, 17), TextSize::from(17)); // first メ at 17..20 assert_eq!(col_index.utf16_to_utf8_col(1, 18), TextSize::from(20)); // space assert_eq!(col_index.utf16_to_utf8_col(1, 19), TextSize::from(21)); // second メ at 21..24 assert_eq!(col_index.utf16_to_utf8_col(2, 15), TextSize::from(15)); } #[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) }