1use super::*;
2use clock::ReplicaId;
3use collections::BTreeMap;
4use gpui::{ModelHandle, MutableAppContext};
5use rand::prelude::*;
6use std::{
7 cell::RefCell,
8 env,
9 ops::Range,
10 rc::Rc,
11 time::{Duration, Instant},
12};
13use text::network::Network;
14use unindent::Unindent as _;
15use util::post_inc;
16
17#[cfg(test)]
18#[ctor::ctor]
19fn init_logger() {
20 if std::env::var("RUST_LOG").is_ok() {
21 env_logger::init();
22 }
23}
24
25#[gpui::test]
26fn test_select_language() {
27 let registry = LanguageRegistry::test();
28 registry.add(Arc::new(Language::new(
29 LanguageConfig {
30 name: "Rust".into(),
31 path_suffixes: vec!["rs".to_string()],
32 ..Default::default()
33 },
34 Some(tree_sitter_rust::language()),
35 )));
36 registry.add(Arc::new(Language::new(
37 LanguageConfig {
38 name: "Make".into(),
39 path_suffixes: vec!["Makefile".to_string(), "mk".to_string()],
40 ..Default::default()
41 },
42 Some(tree_sitter_rust::language()),
43 )));
44
45 // matching file extension
46 assert_eq!(
47 registry.select_language("zed/lib.rs").map(|l| l.name()),
48 Some("Rust".into())
49 );
50 assert_eq!(
51 registry.select_language("zed/lib.mk").map(|l| l.name()),
52 Some("Make".into())
53 );
54
55 // matching filename
56 assert_eq!(
57 registry.select_language("zed/Makefile").map(|l| l.name()),
58 Some("Make".into())
59 );
60
61 // matching suffix that is not the full file extension or filename
62 assert_eq!(registry.select_language("zed/cars").map(|l| l.name()), None);
63 assert_eq!(
64 registry.select_language("zed/a.cars").map(|l| l.name()),
65 None
66 );
67 assert_eq!(registry.select_language("zed/sumk").map(|l| l.name()), None);
68}
69
70#[gpui::test]
71fn test_edit_events(cx: &mut gpui::MutableAppContext) {
72 let mut now = Instant::now();
73 let buffer_1_events = Rc::new(RefCell::new(Vec::new()));
74 let buffer_2_events = Rc::new(RefCell::new(Vec::new()));
75
76 let buffer1 = cx.add_model(|cx| Buffer::new(0, "abcdef", cx));
77 let buffer2 = cx.add_model(|cx| Buffer::new(1, "abcdef", cx));
78 let buffer1_ops = Rc::new(RefCell::new(Vec::new()));
79 buffer1.update(cx, {
80 let buffer1_ops = buffer1_ops.clone();
81 |buffer, cx| {
82 let buffer_1_events = buffer_1_events.clone();
83 cx.subscribe(&buffer1, move |_, _, event, _| match event.clone() {
84 Event::Operation(op) => buffer1_ops.borrow_mut().push(op),
85 event @ _ => buffer_1_events.borrow_mut().push(event),
86 })
87 .detach();
88 let buffer_2_events = buffer_2_events.clone();
89 cx.subscribe(&buffer2, move |_, _, event, _| {
90 buffer_2_events.borrow_mut().push(event.clone())
91 })
92 .detach();
93
94 // An edit emits an edited event, followed by a dirtied event,
95 // since the buffer was previously in a clean state.
96 buffer.edit([(2..4, "XYZ")], cx);
97
98 // An empty transaction does not emit any events.
99 buffer.start_transaction();
100 buffer.end_transaction(cx);
101
102 // A transaction containing two edits emits one edited event.
103 now += Duration::from_secs(1);
104 buffer.start_transaction_at(now);
105 buffer.edit([(5..5, "u")], cx);
106 buffer.edit([(6..6, "w")], cx);
107 buffer.end_transaction_at(now, cx);
108
109 // Undoing a transaction emits one edited event.
110 buffer.undo(cx);
111 }
112 });
113
114 // Incorporating a set of remote ops emits a single edited event,
115 // followed by a dirtied event.
116 buffer2.update(cx, |buffer, cx| {
117 buffer
118 .apply_ops(buffer1_ops.borrow_mut().drain(..), cx)
119 .unwrap();
120 });
121
122 let buffer_1_events = buffer_1_events.borrow();
123 assert_eq!(
124 *buffer_1_events,
125 vec![Event::Edited, Event::Dirtied, Event::Edited, Event::Edited]
126 );
127
128 let buffer_2_events = buffer_2_events.borrow();
129 assert_eq!(*buffer_2_events, vec![Event::Edited, Event::Dirtied]);
130}
131
132#[gpui::test]
133async fn test_apply_diff(cx: &mut gpui::TestAppContext) {
134 let text = "a\nbb\nccc\ndddd\neeeee\nffffff\n";
135 let buffer = cx.add_model(|cx| Buffer::new(0, text, cx));
136
137 let text = "a\nccc\ndddd\nffffff\n";
138 let diff = buffer.read_with(cx, |b, cx| b.diff(text.into(), cx)).await;
139 buffer.update(cx, |buffer, cx| {
140 buffer.apply_diff(diff, cx).unwrap();
141 });
142 cx.read(|cx| assert_eq!(buffer.read(cx).text(), text));
143
144 let text = "a\n1\n\nccc\ndd2dd\nffffff\n";
145 let diff = buffer.read_with(cx, |b, cx| b.diff(text.into(), cx)).await;
146 buffer.update(cx, |buffer, cx| {
147 buffer.apply_diff(diff, cx).unwrap();
148 });
149 cx.read(|cx| assert_eq!(buffer.read(cx).text(), text));
150}
151
152#[gpui::test]
153async fn test_reparse(cx: &mut gpui::TestAppContext) {
154 let text = "fn a() {}";
155 let buffer =
156 cx.add_model(|cx| Buffer::new(0, text, cx).with_language(Arc::new(rust_lang()), cx));
157
158 // Wait for the initial text to parse
159 buffer
160 .condition(&cx, |buffer, _| !buffer.is_parsing())
161 .await;
162 assert_eq!(
163 get_tree_sexp(&buffer, &cx),
164 concat!(
165 "(source_file (function_item name: (identifier) ",
166 "parameters: (parameters) ",
167 "body: (block)))"
168 )
169 );
170
171 buffer.update(cx, |buffer, _| {
172 buffer.set_sync_parse_timeout(Duration::ZERO)
173 });
174
175 // Perform some edits (add parameter and variable reference)
176 // Parsing doesn't begin until the transaction is complete
177 buffer.update(cx, |buf, cx| {
178 buf.start_transaction();
179
180 let offset = buf.text().find(")").unwrap();
181 buf.edit([(offset..offset, "b: C")], cx);
182 assert!(!buf.is_parsing());
183
184 let offset = buf.text().find("}").unwrap();
185 buf.edit([(offset..offset, " d; ")], cx);
186 assert!(!buf.is_parsing());
187
188 buf.end_transaction(cx);
189 assert_eq!(buf.text(), "fn a(b: C) { d; }");
190 assert!(buf.is_parsing());
191 });
192 buffer
193 .condition(&cx, |buffer, _| !buffer.is_parsing())
194 .await;
195 assert_eq!(
196 get_tree_sexp(&buffer, &cx),
197 concat!(
198 "(source_file (function_item name: (identifier) ",
199 "parameters: (parameters (parameter pattern: (identifier) type: (type_identifier))) ",
200 "body: (block (expression_statement (identifier)))))"
201 )
202 );
203
204 // Perform a series of edits without waiting for the current parse to complete:
205 // * turn identifier into a field expression
206 // * turn field expression into a method call
207 // * add a turbofish to the method call
208 buffer.update(cx, |buf, cx| {
209 let offset = buf.text().find(";").unwrap();
210 buf.edit([(offset..offset, ".e")], cx);
211 assert_eq!(buf.text(), "fn a(b: C) { d.e; }");
212 assert!(buf.is_parsing());
213 });
214 buffer.update(cx, |buf, cx| {
215 let offset = buf.text().find(";").unwrap();
216 buf.edit([(offset..offset, "(f)")], cx);
217 assert_eq!(buf.text(), "fn a(b: C) { d.e(f); }");
218 assert!(buf.is_parsing());
219 });
220 buffer.update(cx, |buf, cx| {
221 let offset = buf.text().find("(f)").unwrap();
222 buf.edit([(offset..offset, "::<G>")], cx);
223 assert_eq!(buf.text(), "fn a(b: C) { d.e::<G>(f); }");
224 assert!(buf.is_parsing());
225 });
226 buffer
227 .condition(&cx, |buffer, _| !buffer.is_parsing())
228 .await;
229 assert_eq!(
230 get_tree_sexp(&buffer, &cx),
231 concat!(
232 "(source_file (function_item name: (identifier) ",
233 "parameters: (parameters (parameter pattern: (identifier) type: (type_identifier))) ",
234 "body: (block (expression_statement (call_expression ",
235 "function: (generic_function ",
236 "function: (field_expression value: (identifier) field: (field_identifier)) ",
237 "type_arguments: (type_arguments (type_identifier))) ",
238 "arguments: (arguments (identifier)))))))",
239 )
240 );
241
242 buffer.update(cx, |buf, cx| {
243 buf.undo(cx);
244 assert_eq!(buf.text(), "fn a() {}");
245 assert!(buf.is_parsing());
246 });
247 buffer
248 .condition(&cx, |buffer, _| !buffer.is_parsing())
249 .await;
250 assert_eq!(
251 get_tree_sexp(&buffer, &cx),
252 concat!(
253 "(source_file (function_item name: (identifier) ",
254 "parameters: (parameters) ",
255 "body: (block)))"
256 )
257 );
258
259 buffer.update(cx, |buf, cx| {
260 buf.redo(cx);
261 assert_eq!(buf.text(), "fn a(b: C) { d.e::<G>(f); }");
262 assert!(buf.is_parsing());
263 });
264 buffer
265 .condition(&cx, |buffer, _| !buffer.is_parsing())
266 .await;
267 assert_eq!(
268 get_tree_sexp(&buffer, &cx),
269 concat!(
270 "(source_file (function_item name: (identifier) ",
271 "parameters: (parameters (parameter pattern: (identifier) type: (type_identifier))) ",
272 "body: (block (expression_statement (call_expression ",
273 "function: (generic_function ",
274 "function: (field_expression value: (identifier) field: (field_identifier)) ",
275 "type_arguments: (type_arguments (type_identifier))) ",
276 "arguments: (arguments (identifier)))))))",
277 )
278 );
279}
280
281#[gpui::test]
282async fn test_resetting_language(cx: &mut gpui::TestAppContext) {
283 let buffer = cx.add_model(|cx| {
284 let mut buffer = Buffer::new(0, "{}", cx).with_language(Arc::new(rust_lang()), cx);
285 buffer.set_sync_parse_timeout(Duration::ZERO);
286 buffer
287 });
288
289 // Wait for the initial text to parse
290 buffer
291 .condition(&cx, |buffer, _| !buffer.is_parsing())
292 .await;
293 assert_eq!(
294 get_tree_sexp(&buffer, &cx),
295 "(source_file (expression_statement (block)))"
296 );
297
298 buffer.update(cx, |buffer, cx| {
299 buffer.set_language(Some(Arc::new(json_lang())), cx)
300 });
301 buffer
302 .condition(&cx, |buffer, _| !buffer.is_parsing())
303 .await;
304 assert_eq!(get_tree_sexp(&buffer, &cx), "(document (object))");
305}
306
307#[gpui::test]
308async fn test_outline(cx: &mut gpui::TestAppContext) {
309 let text = r#"
310 struct Person {
311 name: String,
312 age: usize,
313 }
314
315 mod module {
316 enum LoginState {
317 LoggedOut,
318 LoggingOn,
319 LoggedIn {
320 person: Person,
321 time: Instant,
322 }
323 }
324 }
325
326 impl Eq for Person {}
327
328 impl Drop for Person {
329 fn drop(&mut self) {
330 println!("bye");
331 }
332 }
333 "#
334 .unindent();
335
336 let buffer =
337 cx.add_model(|cx| Buffer::new(0, text, cx).with_language(Arc::new(rust_lang()), cx));
338 let outline = buffer
339 .read_with(cx, |buffer, _| buffer.snapshot().outline(None))
340 .unwrap();
341
342 assert_eq!(
343 outline
344 .items
345 .iter()
346 .map(|item| (item.text.as_str(), item.depth))
347 .collect::<Vec<_>>(),
348 &[
349 ("struct Person", 0),
350 ("name", 1),
351 ("age", 1),
352 ("mod module", 0),
353 ("enum LoginState", 1),
354 ("LoggedOut", 2),
355 ("LoggingOn", 2),
356 ("LoggedIn", 2),
357 ("person", 3),
358 ("time", 3),
359 ("impl Eq for Person", 0),
360 ("impl Drop for Person", 0),
361 ("fn drop", 1),
362 ]
363 );
364
365 // Without space, we only match on names
366 assert_eq!(
367 search(&outline, "oon", &cx).await,
368 &[
369 ("mod module", vec![]), // included as the parent of a match
370 ("enum LoginState", vec![]), // included as the parent of a match
371 ("LoggingOn", vec![1, 7, 8]), // matches
372 ("impl Drop for Person", vec![7, 18, 19]), // matches in two disjoint names
373 ]
374 );
375
376 assert_eq!(
377 search(&outline, "dp p", &cx).await,
378 &[
379 ("impl Drop for Person", vec![5, 8, 9, 14]),
380 ("fn drop", vec![]),
381 ]
382 );
383 assert_eq!(
384 search(&outline, "dpn", &cx).await,
385 &[("impl Drop for Person", vec![5, 14, 19])]
386 );
387 assert_eq!(
388 search(&outline, "impl ", &cx).await,
389 &[
390 ("impl Eq for Person", vec![0, 1, 2, 3, 4]),
391 ("impl Drop for Person", vec![0, 1, 2, 3, 4]),
392 ("fn drop", vec![]),
393 ]
394 );
395
396 async fn search<'a>(
397 outline: &'a Outline<Anchor>,
398 query: &str,
399 cx: &gpui::TestAppContext,
400 ) -> Vec<(&'a str, Vec<usize>)> {
401 let matches = cx
402 .read(|cx| outline.search(query, cx.background().clone()))
403 .await;
404 matches
405 .into_iter()
406 .map(|mat| (outline.items[mat.candidate_id].text.as_str(), mat.positions))
407 .collect::<Vec<_>>()
408 }
409}
410
411#[gpui::test]
412async fn test_symbols_containing(cx: &mut gpui::TestAppContext) {
413 let text = r#"
414 impl Person {
415 fn one() {
416 1
417 }
418
419 fn two() {
420 2
421 }fn three() {
422 3
423 }
424 }
425 "#
426 .unindent();
427
428 let buffer =
429 cx.add_model(|cx| Buffer::new(0, text, cx).with_language(Arc::new(rust_lang()), cx));
430 let snapshot = buffer.read_with(cx, |buffer, _| buffer.snapshot());
431
432 // point is at the start of an item
433 assert_eq!(
434 symbols_containing(Point::new(1, 4), &snapshot),
435 vec![
436 (
437 "impl Person".to_string(),
438 Point::new(0, 0)..Point::new(10, 1)
439 ),
440 ("fn one".to_string(), Point::new(1, 4)..Point::new(3, 5))
441 ]
442 );
443
444 // point is in the middle of an item
445 assert_eq!(
446 symbols_containing(Point::new(2, 8), &snapshot),
447 vec![
448 (
449 "impl Person".to_string(),
450 Point::new(0, 0)..Point::new(10, 1)
451 ),
452 ("fn one".to_string(), Point::new(1, 4)..Point::new(3, 5))
453 ]
454 );
455
456 // point is at the end of an item
457 assert_eq!(
458 symbols_containing(Point::new(3, 5), &snapshot),
459 vec![
460 (
461 "impl Person".to_string(),
462 Point::new(0, 0)..Point::new(10, 1)
463 ),
464 ("fn one".to_string(), Point::new(1, 4)..Point::new(3, 5))
465 ]
466 );
467
468 // point is in between two adjacent items
469 assert_eq!(
470 symbols_containing(Point::new(7, 5), &snapshot),
471 vec![
472 (
473 "impl Person".to_string(),
474 Point::new(0, 0)..Point::new(10, 1)
475 ),
476 ("fn two".to_string(), Point::new(5, 4)..Point::new(7, 5))
477 ]
478 );
479
480 fn symbols_containing<'a>(
481 position: Point,
482 snapshot: &'a BufferSnapshot,
483 ) -> Vec<(String, Range<Point>)> {
484 snapshot
485 .symbols_containing(position, None)
486 .unwrap()
487 .into_iter()
488 .map(|item| {
489 (
490 item.text,
491 item.range.start.to_point(snapshot)..item.range.end.to_point(snapshot),
492 )
493 })
494 .collect()
495 }
496}
497
498#[gpui::test]
499fn test_enclosing_bracket_ranges(cx: &mut MutableAppContext) {
500 let buffer = cx.add_model(|cx| {
501 let text = "
502 mod x {
503 mod y {
504
505 }
506 }
507 "
508 .unindent();
509 Buffer::new(0, text, cx).with_language(Arc::new(rust_lang()), cx)
510 });
511 let buffer = buffer.read(cx);
512 assert_eq!(
513 buffer.enclosing_bracket_point_ranges(Point::new(1, 6)..Point::new(1, 6)),
514 Some((
515 Point::new(0, 6)..Point::new(0, 7),
516 Point::new(4, 0)..Point::new(4, 1)
517 ))
518 );
519 assert_eq!(
520 buffer.enclosing_bracket_point_ranges(Point::new(1, 10)..Point::new(1, 10)),
521 Some((
522 Point::new(1, 10)..Point::new(1, 11),
523 Point::new(3, 4)..Point::new(3, 5)
524 ))
525 );
526 assert_eq!(
527 buffer.enclosing_bracket_point_ranges(Point::new(3, 5)..Point::new(3, 5)),
528 Some((
529 Point::new(1, 10)..Point::new(1, 11),
530 Point::new(3, 4)..Point::new(3, 5)
531 ))
532 );
533}
534
535#[gpui::test]
536fn test_range_for_syntax_ancestor(cx: &mut MutableAppContext) {
537 cx.add_model(|cx| {
538 let text = "fn a() { b(|c| {}) }";
539 let buffer = Buffer::new(0, text, cx).with_language(Arc::new(rust_lang()), cx);
540 let snapshot = buffer.snapshot();
541
542 assert_eq!(
543 snapshot.range_for_syntax_ancestor(empty_range_at(text, "|")),
544 Some(range_of(text, "|"))
545 );
546 assert_eq!(
547 snapshot.range_for_syntax_ancestor(range_of(text, "|")),
548 Some(range_of(text, "|c|"))
549 );
550 assert_eq!(
551 snapshot.range_for_syntax_ancestor(range_of(text, "|c|")),
552 Some(range_of(text, "|c| {}"))
553 );
554 assert_eq!(
555 snapshot.range_for_syntax_ancestor(range_of(text, "|c| {}")),
556 Some(range_of(text, "(|c| {})"))
557 );
558
559 buffer
560 });
561
562 fn empty_range_at(text: &str, part: &str) -> Range<usize> {
563 let start = text.find(part).unwrap();
564 start..start
565 }
566
567 fn range_of(text: &str, part: &str) -> Range<usize> {
568 let start = text.find(part).unwrap();
569 start..start + part.len()
570 }
571}
572
573#[gpui::test]
574fn test_edit_with_autoindent(cx: &mut MutableAppContext) {
575 cx.add_model(|cx| {
576 let text = "fn a() {}";
577 let mut buffer = Buffer::new(0, text, cx).with_language(Arc::new(rust_lang()), cx);
578
579 buffer.edit_with_autoindent([(8..8, "\n\n")], 4, cx);
580 assert_eq!(buffer.text(), "fn a() {\n \n}");
581
582 buffer.edit_with_autoindent([(Point::new(1, 4)..Point::new(1, 4), "b()\n")], 4, cx);
583 assert_eq!(buffer.text(), "fn a() {\n b()\n \n}");
584
585 buffer.edit_with_autoindent([(Point::new(2, 4)..Point::new(2, 4), ".c")], 4, cx);
586 assert_eq!(buffer.text(), "fn a() {\n b()\n .c\n}");
587
588 buffer
589 });
590}
591
592#[gpui::test]
593fn test_autoindent_does_not_adjust_lines_with_unchanged_suggestion(cx: &mut MutableAppContext) {
594 cx.add_model(|cx| {
595 let text = "
596 fn a() {
597 c;
598 d;
599 }
600 "
601 .unindent();
602
603 let mut buffer = Buffer::new(0, text, cx).with_language(Arc::new(rust_lang()), cx);
604
605 // Lines 2 and 3 don't match the indentation suggestion. When editing these lines,
606 // their indentation is not adjusted.
607 buffer.edit_with_autoindent(
608 [
609 (empty(Point::new(1, 1)), "()"),
610 (empty(Point::new(2, 1)), "()"),
611 ],
612 4,
613 cx,
614 );
615 assert_eq!(
616 buffer.text(),
617 "
618 fn a() {
619 c();
620 d();
621 }
622 "
623 .unindent()
624 );
625
626 // When appending new content after these lines, the indentation is based on the
627 // preceding lines' actual indentation.
628 buffer.edit_with_autoindent(
629 [
630 (empty(Point::new(1, 1)), "\n.f\n.g"),
631 (empty(Point::new(2, 1)), "\n.f\n.g"),
632 ],
633 4,
634 cx,
635 );
636 assert_eq!(
637 buffer.text(),
638 "
639 fn a() {
640 c
641 .f
642 .g();
643 d
644 .f
645 .g();
646 }
647 "
648 .unindent()
649 );
650 buffer
651 });
652}
653
654#[gpui::test]
655fn test_autoindent_adjusts_lines_when_only_text_changes(cx: &mut MutableAppContext) {
656 cx.add_model(|cx| {
657 let text = "
658 fn a() {}
659 "
660 .unindent();
661
662 let mut buffer = Buffer::new(0, text, cx).with_language(Arc::new(rust_lang()), cx);
663
664 buffer.edit_with_autoindent([(5..5, "\nb")], 4, cx);
665 assert_eq!(
666 buffer.text(),
667 "
668 fn a(
669 b) {}
670 "
671 .unindent()
672 );
673
674 // The indentation suggestion changed because `@end` node (a close paren)
675 // is now at the beginning of the line.
676 buffer.edit_with_autoindent([(Point::new(1, 4)..Point::new(1, 5), "")], 4, cx);
677 assert_eq!(
678 buffer.text(),
679 "
680 fn a(
681 ) {}
682 "
683 .unindent()
684 );
685
686 buffer
687 });
688}
689
690#[gpui::test]
691fn test_autoindent_with_edit_at_end_of_buffer(cx: &mut MutableAppContext) {
692 cx.add_model(|cx| {
693 let text = "a\nb";
694 let mut buffer = Buffer::new(0, text, cx).with_language(Arc::new(rust_lang()), cx);
695 buffer.edit_with_autoindent([(0..1, "\n"), (2..3, "\n")], 4, cx);
696 assert_eq!(buffer.text(), "\n\n\n");
697 buffer
698 });
699}
700
701#[gpui::test]
702fn test_serialization(cx: &mut gpui::MutableAppContext) {
703 let mut now = Instant::now();
704
705 let buffer1 = cx.add_model(|cx| {
706 let mut buffer = Buffer::new(0, "abc", cx);
707 buffer.edit([(3..3, "D")], cx);
708
709 now += Duration::from_secs(1);
710 buffer.start_transaction_at(now);
711 buffer.edit([(4..4, "E")], cx);
712 buffer.end_transaction_at(now, cx);
713 assert_eq!(buffer.text(), "abcDE");
714
715 buffer.undo(cx);
716 assert_eq!(buffer.text(), "abcD");
717
718 buffer.edit([(4..4, "F")], cx);
719 assert_eq!(buffer.text(), "abcDF");
720 buffer
721 });
722 assert_eq!(buffer1.read(cx).text(), "abcDF");
723
724 let message = buffer1.read(cx).to_proto();
725 let buffer2 = cx.add_model(|cx| Buffer::from_proto(1, message, None, cx).unwrap());
726 assert_eq!(buffer2.read(cx).text(), "abcDF");
727}
728
729#[gpui::test(iterations = 100)]
730fn test_random_collaboration(cx: &mut MutableAppContext, mut rng: StdRng) {
731 let min_peers = env::var("MIN_PEERS")
732 .map(|i| i.parse().expect("invalid `MIN_PEERS` variable"))
733 .unwrap_or(1);
734 let max_peers = env::var("MAX_PEERS")
735 .map(|i| i.parse().expect("invalid `MAX_PEERS` variable"))
736 .unwrap_or(5);
737 let operations = env::var("OPERATIONS")
738 .map(|i| i.parse().expect("invalid `OPERATIONS` variable"))
739 .unwrap_or(10);
740
741 let base_text_len = rng.gen_range(0..10);
742 let base_text = RandomCharIter::new(&mut rng)
743 .take(base_text_len)
744 .collect::<String>();
745 let mut replica_ids = Vec::new();
746 let mut buffers = Vec::new();
747 let network = Rc::new(RefCell::new(Network::new(rng.clone())));
748
749 for i in 0..rng.gen_range(min_peers..=max_peers) {
750 let buffer = cx.add_model(|cx| {
751 let mut buffer = Buffer::new(i as ReplicaId, base_text.as_str(), cx);
752 buffer.set_group_interval(Duration::from_millis(rng.gen_range(0..=200)));
753 let network = network.clone();
754 cx.subscribe(&cx.handle(), move |buffer, _, event, _| {
755 if let Event::Operation(op) = event {
756 network
757 .borrow_mut()
758 .broadcast(buffer.replica_id(), vec![proto::serialize_operation(&op)]);
759 }
760 })
761 .detach();
762 buffer
763 });
764 buffers.push(buffer);
765 replica_ids.push(i as ReplicaId);
766 network.borrow_mut().add_peer(i as ReplicaId);
767 log::info!("Adding initial peer with replica id {}", i);
768 }
769
770 log::info!("initial text: {:?}", base_text);
771
772 let mut now = Instant::now();
773 let mut mutation_count = operations;
774 let mut next_diagnostic_id = 0;
775 let mut active_selections = BTreeMap::default();
776 loop {
777 let replica_index = rng.gen_range(0..replica_ids.len());
778 let replica_id = replica_ids[replica_index];
779 let buffer = &mut buffers[replica_index];
780 let mut new_buffer = None;
781 match rng.gen_range(0..100) {
782 0..=29 if mutation_count != 0 => {
783 buffer.update(cx, |buffer, cx| {
784 buffer.start_transaction_at(now);
785 buffer.randomly_edit(&mut rng, 5, cx);
786 buffer.end_transaction_at(now, cx);
787 log::info!("buffer {} text: {:?}", buffer.replica_id(), buffer.text());
788 });
789 mutation_count -= 1;
790 }
791 30..=39 if mutation_count != 0 => {
792 buffer.update(cx, |buffer, cx| {
793 let mut selections = Vec::new();
794 for id in 0..rng.gen_range(1..=5) {
795 let range = buffer.random_byte_range(0, &mut rng);
796 selections.push(Selection {
797 id,
798 start: buffer.anchor_before(range.start),
799 end: buffer.anchor_before(range.end),
800 reversed: false,
801 goal: SelectionGoal::None,
802 });
803 }
804 let selections: Arc<[Selection<Anchor>]> = selections.into();
805 log::info!(
806 "peer {} setting active selections: {:?}",
807 replica_id,
808 selections
809 );
810 active_selections.insert(replica_id, selections.clone());
811 buffer.set_active_selections(selections, cx);
812 });
813 mutation_count -= 1;
814 }
815 40..=49 if mutation_count != 0 && replica_id == 0 => {
816 let entry_count = rng.gen_range(1..=5);
817 buffer.update(cx, |buffer, cx| {
818 let diagnostics = DiagnosticSet::new(
819 (0..entry_count).map(|_| {
820 let range = buffer.random_byte_range(0, &mut rng);
821 let range = range.to_point_utf16(buffer);
822 DiagnosticEntry {
823 range,
824 diagnostic: Diagnostic {
825 message: post_inc(&mut next_diagnostic_id).to_string(),
826 ..Default::default()
827 },
828 }
829 }),
830 buffer,
831 );
832 log::info!("peer {} setting diagnostics: {:?}", replica_id, diagnostics);
833 buffer.update_diagnostics(diagnostics, cx);
834 });
835 mutation_count -= 1;
836 }
837 50..=59 if replica_ids.len() < max_peers => {
838 let old_buffer = buffer.read(cx).to_proto();
839 let new_replica_id = (0..=replica_ids.len() as ReplicaId)
840 .filter(|replica_id| *replica_id != buffer.read(cx).replica_id())
841 .choose(&mut rng)
842 .unwrap();
843 log::info!(
844 "Adding new replica {} (replicating from {})",
845 new_replica_id,
846 replica_id
847 );
848 new_buffer = Some(cx.add_model(|cx| {
849 let mut new_buffer =
850 Buffer::from_proto(new_replica_id, old_buffer, None, cx).unwrap();
851 log::info!(
852 "New replica {} text: {:?}",
853 new_buffer.replica_id(),
854 new_buffer.text()
855 );
856 new_buffer.set_group_interval(Duration::from_millis(rng.gen_range(0..=200)));
857 let network = network.clone();
858 cx.subscribe(&cx.handle(), move |buffer, _, event, _| {
859 if let Event::Operation(op) = event {
860 network.borrow_mut().broadcast(
861 buffer.replica_id(),
862 vec![proto::serialize_operation(&op)],
863 );
864 }
865 })
866 .detach();
867 new_buffer
868 }));
869 network.borrow_mut().replicate(replica_id, new_replica_id);
870
871 if new_replica_id as usize == replica_ids.len() {
872 replica_ids.push(new_replica_id);
873 } else {
874 let new_buffer = new_buffer.take().unwrap();
875 while network.borrow().has_unreceived(new_replica_id) {
876 let ops = network
877 .borrow_mut()
878 .receive(new_replica_id)
879 .into_iter()
880 .map(|op| proto::deserialize_operation(op).unwrap());
881 if ops.len() > 0 {
882 log::info!(
883 "peer {} (version: {:?}) applying {} ops from the network. {:?}",
884 new_replica_id,
885 buffer.read(cx).version(),
886 ops.len(),
887 ops
888 );
889 new_buffer.update(cx, |new_buffer, cx| {
890 new_buffer.apply_ops(ops, cx).unwrap();
891 });
892 }
893 }
894 buffers[new_replica_id as usize] = new_buffer;
895 }
896 }
897 60..=69 if mutation_count != 0 => {
898 buffer.update(cx, |buffer, cx| {
899 buffer.randomly_undo_redo(&mut rng, cx);
900 log::info!("buffer {} text: {:?}", buffer.replica_id(), buffer.text());
901 });
902 mutation_count -= 1;
903 }
904 _ if network.borrow().has_unreceived(replica_id) => {
905 let ops = network
906 .borrow_mut()
907 .receive(replica_id)
908 .into_iter()
909 .map(|op| proto::deserialize_operation(op).unwrap());
910 if ops.len() > 0 {
911 log::info!(
912 "peer {} (version: {:?}) applying {} ops from the network. {:?}",
913 replica_id,
914 buffer.read(cx).version(),
915 ops.len(),
916 ops
917 );
918 buffer.update(cx, |buffer, cx| buffer.apply_ops(ops, cx).unwrap());
919 }
920 }
921 _ => {}
922 }
923
924 now += Duration::from_millis(rng.gen_range(0..=200));
925 buffers.extend(new_buffer);
926
927 for buffer in &buffers {
928 buffer.read(cx).check_invariants();
929 }
930
931 if mutation_count == 0 && network.borrow().is_idle() {
932 break;
933 }
934 }
935
936 let first_buffer = buffers[0].read(cx).snapshot();
937 for buffer in &buffers[1..] {
938 let buffer = buffer.read(cx).snapshot();
939 assert_eq!(
940 buffer.version(),
941 first_buffer.version(),
942 "Replica {} version != Replica 0 version",
943 buffer.replica_id()
944 );
945 assert_eq!(
946 buffer.text(),
947 first_buffer.text(),
948 "Replica {} text != Replica 0 text",
949 buffer.replica_id()
950 );
951 assert_eq!(
952 buffer
953 .diagnostics_in_range::<_, usize>(0..buffer.len(), false)
954 .collect::<Vec<_>>(),
955 first_buffer
956 .diagnostics_in_range::<_, usize>(0..first_buffer.len(), false)
957 .collect::<Vec<_>>(),
958 "Replica {} diagnostics != Replica 0 diagnostics",
959 buffer.replica_id()
960 );
961 }
962
963 for buffer in &buffers {
964 let buffer = buffer.read(cx).snapshot();
965 let actual_remote_selections = buffer
966 .remote_selections_in_range(Anchor::MIN..Anchor::MAX)
967 .map(|(replica_id, selections)| (replica_id, selections.collect::<Vec<_>>()))
968 .collect::<Vec<_>>();
969 let expected_remote_selections = active_selections
970 .iter()
971 .filter(|(replica_id, _)| **replica_id != buffer.replica_id())
972 .map(|(replica_id, selections)| (*replica_id, selections.iter().collect::<Vec<_>>()))
973 .collect::<Vec<_>>();
974 assert_eq!(
975 actual_remote_selections,
976 expected_remote_selections,
977 "Replica {} remote selections != expected selections",
978 buffer.replica_id()
979 );
980 }
981}
982
983#[test]
984fn test_contiguous_ranges() {
985 assert_eq!(
986 contiguous_ranges([1, 2, 3, 5, 6, 9, 10, 11, 12].into_iter(), 100).collect::<Vec<_>>(),
987 &[1..4, 5..7, 9..13]
988 );
989
990 // Respects the `max_len` parameter
991 assert_eq!(
992 contiguous_ranges(
993 [2, 3, 4, 5, 6, 7, 8, 9, 23, 24, 25, 26, 30, 31].into_iter(),
994 3
995 )
996 .collect::<Vec<_>>(),
997 &[2..5, 5..8, 8..10, 23..26, 26..27, 30..32],
998 );
999}
1000
1001impl Buffer {
1002 pub fn enclosing_bracket_point_ranges<T: ToOffset>(
1003 &self,
1004 range: Range<T>,
1005 ) -> Option<(Range<Point>, Range<Point>)> {
1006 self.snapshot()
1007 .enclosing_bracket_ranges(range)
1008 .map(|(start, end)| {
1009 let point_start = start.start.to_point(self)..start.end.to_point(self);
1010 let point_end = end.start.to_point(self)..end.end.to_point(self);
1011 (point_start, point_end)
1012 })
1013 }
1014}
1015
1016fn rust_lang() -> Language {
1017 Language::new(
1018 LanguageConfig {
1019 name: "Rust".into(),
1020 path_suffixes: vec!["rs".to_string()],
1021 ..Default::default()
1022 },
1023 Some(tree_sitter_rust::language()),
1024 )
1025 .with_indents_query(
1026 r#"
1027 (call_expression) @indent
1028 (field_expression) @indent
1029 (_ "(" ")" @end) @indent
1030 (_ "{" "}" @end) @indent
1031 "#,
1032 )
1033 .unwrap()
1034 .with_brackets_query(
1035 r#"
1036 ("{" @open "}" @close)
1037 "#,
1038 )
1039 .unwrap()
1040 .with_outline_query(
1041 r#"
1042 (struct_item
1043 "struct" @context
1044 name: (_) @name) @item
1045 (enum_item
1046 "enum" @context
1047 name: (_) @name) @item
1048 (enum_variant
1049 name: (_) @name) @item
1050 (field_declaration
1051 name: (_) @name) @item
1052 (impl_item
1053 "impl" @context
1054 trait: (_)? @name
1055 "for"? @context
1056 type: (_) @name) @item
1057 (function_item
1058 "fn" @context
1059 name: (_) @name) @item
1060 (mod_item
1061 "mod" @context
1062 name: (_) @name) @item
1063 "#,
1064 )
1065 .unwrap()
1066}
1067
1068fn json_lang() -> Language {
1069 Language::new(
1070 LanguageConfig {
1071 name: "Json".into(),
1072 path_suffixes: vec!["js".to_string()],
1073 ..Default::default()
1074 },
1075 Some(tree_sitter_json::language()),
1076 )
1077}
1078
1079fn get_tree_sexp(buffer: &ModelHandle<Buffer>, cx: &gpui::TestAppContext) -> String {
1080 buffer.read_with(cx, |buffer, _| {
1081 buffer.syntax_tree().unwrap().root_node().to_sexp()
1082 })
1083}
1084
1085fn empty(point: Point) -> Range<Point> {
1086 point..point
1087}