bendns' repos / rust-analyzer
Unnamed repository; edit this file 'description' to name the repository.
Diffstat (limited to 'lib/line-index/src/tests.rs')
-rw-r--r--lib/line-index/src/tests.rs129
1 files changed, 119 insertions, 10 deletions
diff --git a/lib/line-index/src/tests.rs b/lib/line-index/src/tests.rs
index 31c01c20ee..8f3762d191 100644
--- a/lib/line-index/src/tests.rs
+++ b/lib/line-index/src/tests.rs
@@ -1,11 +1,120 @@
-use super::LineIndex;
-
-#[test]
-fn test_empty_index() {
- let col_index = LineIndex::new(
- "
-const C: char = 'x';
-",
- );
- assert_eq!(col_index.line_wide_chars.len(), 0);
+use crate::{LineIndex, TextSize, WideChar};
+
+macro_rules! test {
+ (
+ case: $test_name:ident,
+ text: $text:expr,
+ lines: $lines:expr,
+ multi_byte_chars: $multi_byte_chars:expr,
+ ) => {
+ #[test]
+ fn $test_name() {
+ let line_index = LineIndex::new($text);
+
+ let expected_lines: Vec<TextSize> =
+ $lines.into_iter().map(<TextSize as From<u32>>::from).collect();
+
+ assert_eq!(&*line_index.newlines, &*expected_lines);
+
+ let expected_mbcs: Vec<_> = $multi_byte_chars
+ .into_iter()
+ .map(|(line, (pos, end)): (u32, (u32, u32))| {
+ (line, WideChar { start: TextSize::from(pos), end: TextSize::from(end) })
+ })
+ .collect();
+
+ assert_eq!(
+ line_index
+ .line_wide_chars
+ .iter()
+ .flat_map(|(line, val)| std::iter::repeat(*line).zip(val.iter().copied()))
+ .collect::<Vec<_>>(),
+ expected_mbcs
+ );
+ }
+ };
}
+
+test!(
+ case: empty_text,
+ text: "",
+ lines: vec![],
+ multi_byte_chars: vec![],
+);
+
+test!(
+ case: newlines_short,
+ text: "a\nc",
+ lines: vec![2],
+ multi_byte_chars: vec![],
+);
+
+test!(
+ case: newlines_long,
+ text: "012345678\nabcdef012345678\na",
+ lines: vec![10, 26],
+ multi_byte_chars: vec![],
+);
+
+test!(
+ case: newline_and_multi_byte_char_in_same_chunk,
+ text: "01234β789\nbcdef0123456789abcdef",
+ lines: vec![11],
+ multi_byte_chars: vec![(0, (5, 7))],
+);
+
+test!(
+ case: newline_and_control_char_in_same_chunk,
+ text: "01234\u{07}6789\nbcdef0123456789abcdef",
+ lines: vec![11],
+ multi_byte_chars: vec![],
+);
+
+test!(
+ case: multi_byte_char_short,
+ text: "aβc",
+ lines: vec![],
+ multi_byte_chars: vec![(0, (1, 3))],
+);
+
+test!(
+ case: multi_byte_char_long,
+ text: "0123456789abcΔf012345β",
+ lines: vec![],
+ multi_byte_chars: vec![(0, (13, 15)), (0, (22, 24))],
+);
+
+test!(
+ case: multi_byte_char_across_chunk_boundary,
+ text: "0123456789abcdeΔ123456789abcdef01234",
+ lines: vec![],
+ multi_byte_chars: vec![(0, (15, 17))],
+);
+
+test!(
+ case: multi_byte_char_across_chunk_boundary_tail,
+ text: "0123456789abcdeΔ....",
+ lines: vec![],
+ multi_byte_chars: vec![(0, (15, 17))],
+);
+
+test!(
+ case: multi_byte_with_new_lines,
+ text: "01\t345\n789abcΔf01234567\u{07}9\nbcΔf",
+ lines: vec![7, 27],
+ multi_byte_chars: vec![(1, (13, 15)), (2, (29, 31))],
+);
+
+test!(
+ case: trailing_newline,
+ text: "0123456789\n",
+ lines: vec![11],
+ multi_byte_chars: vec![],
+);
+
+test!(
+ case: trailing_newline_chunk_boundary,
+ text: "0123456789abcde\n",
+ lines: vec![16],
+ multi_byte_chars: vec![],
+);