Add unit tests for some of the new `Range` methods.

pull/376/head
Nathan Vegdahl 3 years ago
parent b2c76dc627
commit 5229c5387f

@ -803,6 +803,86 @@ mod test {
assert_eq!(Range::new(6, 5).min_width_1(s), Range::new(6, 5)); assert_eq!(Range::new(6, 5).min_width_1(s), Range::new(6, 5));
} }
#[test]
fn test_line_range() {
let r = Rope::from_str("\r\nHi\r\nthere!");
let s = r.slice(..);
// Zero-width ranges.
assert_eq!(Range::new(0, 0).line_range(s), (0, 0));
assert_eq!(Range::new(1, 1).line_range(s), (0, 0));
assert_eq!(Range::new(2, 2).line_range(s), (1, 1));
assert_eq!(Range::new(3, 3).line_range(s), (1, 1));
// Forward ranges.
assert_eq!(Range::new(0, 1).line_range(s), (0, 0));
assert_eq!(Range::new(0, 2).line_range(s), (0, 0));
assert_eq!(Range::new(0, 3).line_range(s), (0, 1));
assert_eq!(Range::new(1, 2).line_range(s), (0, 0));
assert_eq!(Range::new(2, 3).line_range(s), (1, 1));
assert_eq!(Range::new(3, 8).line_range(s), (1, 2));
assert_eq!(Range::new(0, 12).line_range(s), (0, 2));
// Reverse ranges.
assert_eq!(Range::new(1, 0).line_range(s), (0, 0));
assert_eq!(Range::new(2, 0).line_range(s), (0, 0));
assert_eq!(Range::new(3, 0).line_range(s), (0, 1));
assert_eq!(Range::new(2, 1).line_range(s), (0, 0));
assert_eq!(Range::new(3, 2).line_range(s), (1, 1));
assert_eq!(Range::new(8, 3).line_range(s), (1, 2));
assert_eq!(Range::new(12, 0).line_range(s), (0, 2));
}
#[test]
fn test_cursor() {
let r = Rope::from_str("\r\nHi\r\nthere!");
let s = r.slice(..);
// Zero-width ranges.
assert_eq!(Range::new(0, 0).cursor(s), 0);
assert_eq!(Range::new(2, 2).cursor(s), 2);
assert_eq!(Range::new(3, 3).cursor(s), 3);
// Forward ranges.
assert_eq!(Range::new(0, 2).cursor(s), 0);
assert_eq!(Range::new(0, 3).cursor(s), 2);
assert_eq!(Range::new(3, 6).cursor(s), 4);
// Reverse ranges.
assert_eq!(Range::new(2, 0).cursor(s), 0);
assert_eq!(Range::new(6, 2).cursor(s), 2);
assert_eq!(Range::new(6, 3).cursor(s), 3);
}
#[test]
fn test_put_cursor() {
let r = Rope::from_str("\r\nHi\r\nthere!");
let s = r.slice(..);
// Zero-width ranges.
assert_eq!(Range::new(0, 0).put_cursor(s, 0, true), Range::new(0, 2));
assert_eq!(Range::new(0, 0).put_cursor(s, 2, true), Range::new(0, 3));
assert_eq!(Range::new(2, 3).put_cursor(s, 4, true), Range::new(2, 6));
assert_eq!(Range::new(2, 8).put_cursor(s, 4, true), Range::new(2, 6));
assert_eq!(Range::new(8, 8).put_cursor(s, 4, true), Range::new(9, 4));
// Forward ranges.
assert_eq!(Range::new(3, 6).put_cursor(s, 0, true), Range::new(4, 0));
assert_eq!(Range::new(3, 6).put_cursor(s, 2, true), Range::new(4, 2));
assert_eq!(Range::new(3, 6).put_cursor(s, 3, true), Range::new(3, 4));
assert_eq!(Range::new(3, 6).put_cursor(s, 4, true), Range::new(3, 6));
assert_eq!(Range::new(3, 6).put_cursor(s, 6, true), Range::new(3, 7));
assert_eq!(Range::new(3, 6).put_cursor(s, 8, true), Range::new(3, 9));
// Reverse ranges.
assert_eq!(Range::new(6, 3).put_cursor(s, 0, true), Range::new(6, 0));
assert_eq!(Range::new(6, 3).put_cursor(s, 2, true), Range::new(6, 2));
assert_eq!(Range::new(6, 3).put_cursor(s, 3, true), Range::new(6, 3));
assert_eq!(Range::new(6, 3).put_cursor(s, 4, true), Range::new(6, 4));
assert_eq!(Range::new(6, 3).put_cursor(s, 6, true), Range::new(4, 7));
assert_eq!(Range::new(6, 3).put_cursor(s, 8, true), Range::new(4, 9));
}
#[test] #[test]
fn test_split_on_matches() { fn test_split_on_matches() {
use crate::regex::Regex; use crate::regex::Regex;

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