Add test cases for existing pair matching logic. (#6027)

* Add test cases for existing pair matching logic.

* fix clippy
This commit is contained in:
Kyle Smith 2023-03-07 21:10:55 -05:00 committed by GitHub
parent 8dd1ab4899
commit 3849ca4c2a
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@ -275,51 +275,138 @@ mod test {
#[test]
fn test_get_surround_pos() {
let doc = Rope::from("(some) (chars)\n(newline)");
let slice = doc.slice(..);
let selection = Selection::new(
SmallVec::from_slice(&[Range::point(2), Range::point(9), Range::point(20)]),
0,
);
#[rustfmt::skip]
let (doc, selection, expectations) =
rope_with_selections_and_expectations(
"(some) (chars)\n(newline)",
"_ ^ _ _ ^ _\n_ ^ _"
);
// cursor on s[o]me, c[h]ars, newl[i]ne
assert_eq!(
get_surround_pos(slice, &selection, Some('('), 1)
.unwrap()
.as_slice(),
&[0, 5, 7, 13, 15, 23]
get_surround_pos(doc.slice(..), &selection, Some('('), 1).unwrap(),
expectations
);
}
#[test]
fn test_get_surround_pos_bail() {
let doc = Rope::from("[some]\n(chars)xx\n(newline)");
let slice = doc.slice(..);
fn test_get_surround_pos_bail_different_surround_chars() {
#[rustfmt::skip]
let (doc, selection, _) =
rope_with_selections_and_expectations(
"[some]\n(chars)xx\n(newline)",
" ^ \n ^ \n "
);
let selection =
Selection::new(SmallVec::from_slice(&[Range::point(2), Range::point(9)]), 0);
// cursor on s[o]me, c[h]ars
assert_eq!(
get_surround_pos(slice, &selection, Some('('), 1),
Err(Error::PairNotFound) // different surround chars
get_surround_pos(doc.slice(..), &selection, Some('('), 1),
Err(Error::PairNotFound)
);
}
#[test]
fn test_get_surround_pos_bail_overlapping_surround_chars() {
#[rustfmt::skip]
let (doc, selection, _) =
rope_with_selections_and_expectations(
"[some]\n(chars)xx\n(newline)",
" \n ^ \n ^ "
);
let selection = Selection::new(
SmallVec::from_slice(&[Range::point(14), Range::point(24)]),
0,
);
// cursor on [x]x, newli[n]e
assert_eq!(
get_surround_pos(slice, &selection, Some('('), 1),
get_surround_pos(doc.slice(..), &selection, Some('('), 1),
Err(Error::PairNotFound) // overlapping surround chars
);
}
#[test]
fn test_get_surround_pos_bail_cursor_overlap() {
#[rustfmt::skip]
let (doc, selection, _) =
rope_with_selections_and_expectations(
"[some]\n(chars)xx\n(newline)",
" ^^ \n \n "
);
let selection =
Selection::new(SmallVec::from_slice(&[Range::point(2), Range::point(3)]), 0);
// cursor on s[o][m]e
assert_eq!(
get_surround_pos(slice, &selection, Some('['), 1),
get_surround_pos(doc.slice(..), &selection, Some('['), 1),
Err(Error::CursorOverlap)
);
}
#[test]
fn test_find_nth_pairs_pos_quote_success() {
#[rustfmt::skip]
let (doc, selection, expectations) =
rope_with_selections_and_expectations(
"some 'quoted text' on this 'line'\n'and this one'",
" _ ^ _ \n "
);
assert_eq!(2, expectations.len());
assert_eq!(
find_nth_pairs_pos(doc.slice(..), '\'', selection.primary(), 1)
.expect("find should succeed"),
(expectations[0], expectations[1])
)
}
#[test]
fn test_find_nth_pairs_pos_nested_quote_success() {
#[rustfmt::skip]
let (doc, selection, expectations) =
rope_with_selections_and_expectations(
"some 'nested 'quoted' text' on this 'line'\n'and this one'",
" _ ^ _ \n "
);
assert_eq!(2, expectations.len());
assert_eq!(
find_nth_pairs_pos(doc.slice(..), '\'', selection.primary(), 2)
.expect("find should succeed"),
(expectations[0], expectations[1])
)
}
#[test]
fn test_find_nth_pairs_pos_inside_quote_ambiguous() {
#[rustfmt::skip]
let (doc, selection, _) =
rope_with_selections_and_expectations(
"some 'nested 'quoted' text' on this 'line'\n'and this one'",
" ^ \n "
);
assert_eq!(
find_nth_pairs_pos(doc.slice(..), '\'', selection.primary(), 1),
Err(Error::CursorOnAmbiguousPair)
)
}
// Create a Rope and a matching Selection using a specification language.
// ^ is a single-point selection.
// _ is an expected index. These are returned as a Vec<usize> for use in assertions.
fn rope_with_selections_and_expectations(
text: &str,
spec: &str,
) -> (Rope, Selection, Vec<usize>) {
if text.len() != spec.len() {
panic!("specification must match text length -- are newlines aligned?");
}
let rope = Rope::from(text);
let selections: SmallVec<[Range; 1]> = spec
.match_indices('^')
.into_iter()
.map(|(i, _)| Range::point(i))
.collect();
let expectations: Vec<usize> = spec
.match_indices('_')
.into_iter()
.map(|(i, _)| i)
.collect();
(rope, Selection::new(selections, 0), expectations)
}
}