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-rw-r--r--crates/test_utils/src/lib.rs31
1 files changed, 31 insertions, 0 deletions
diff --git a/crates/test_utils/src/lib.rs b/crates/test_utils/src/lib.rs
index 26b9bfb38..068eb80ce 100644
--- a/crates/test_utils/src/lib.rs
+++ b/crates/test_utils/src/lib.rs
@@ -1,8 +1,10 @@
1extern crate difference; 1extern crate difference;
2extern crate itertools; 2extern crate itertools;
3extern crate text_unit;
3 4
4use std::fmt; 5use std::fmt;
5use itertools::Itertools; 6use itertools::Itertools;
7use text_unit::{TextUnit, TextRange};
6 8
7pub use self::difference::Changeset as __Changeset; 9pub use self::difference::Changeset as __Changeset;
8 10
@@ -34,3 +36,32 @@ pub fn assert_eq_dbg(expected: &str, actual: &impl fmt::Debug) {
34 let expected = expected.lines().map(|l| l.trim()).join(" "); 36 let expected = expected.lines().map(|l| l.trim()).join(" ");
35 assert_eq!(expected, actual); 37 assert_eq!(expected, actual);
36} 38}
39
40pub fn extract_offset(text: &str) -> (TextUnit, String) {
41 let cursor = "<|>";
42 let cursor_pos = match text.find(cursor) {
43 None => panic!("text should contain cursor marker"),
44 Some(pos) => pos,
45 };
46 let mut new_text = String::with_capacity(text.len() - cursor.len());
47 new_text.push_str(&text[..cursor_pos]);
48 new_text.push_str(&text[cursor_pos + cursor.len()..]);
49 let cursor_pos = TextUnit::from(cursor_pos as u32);
50 (cursor_pos, new_text)
51}
52
53pub fn extract_range(text: &str) -> (TextRange, String) {
54 let (start, text) = extract_offset(text);
55 let (end, text) = extract_offset(&text);
56 (TextRange::from_to(start, end), text)
57}
58
59pub fn add_cursor(text: &str, offset: TextUnit) -> String {
60 let offset: u32 = offset.into();
61 let offset: usize = offset as usize;
62 let mut res = String::new();
63 res.push_str(&text[..offset]);
64 res.push_str("<|>");
65 res.push_str(&text[offset..]);
66 res
67}