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(Some(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(Some(5..5), "u", cx);
106 buffer.edit(Some(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(vec![offset..offset], "b: C", cx);
182 assert!(!buf.is_parsing());
183
184 let offset = buf.text().find("}").unwrap();
185 buf.edit(vec![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(vec![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(vec![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(vec![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", 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", 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", 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([empty(Point::new(1, 1)), empty(Point::new(2, 1))], "()", cx);
608 assert_eq!(
609 buffer.text(),
610 "
611 fn a() {
612 c();
613 d();
614 }
615 "
616 .unindent()
617 );
618
619 // When appending new content after these lines, the indentation is based on the
620 // preceding lines' actual indentation.
621 buffer.edit_with_autoindent(
622 [empty(Point::new(1, 1)), empty(Point::new(2, 1))],
623 "\n.f\n.g",
624 cx,
625 );
626 assert_eq!(
627 buffer.text(),
628 "
629 fn a() {
630 c
631 .f
632 .g();
633 d
634 .f
635 .g();
636 }
637 "
638 .unindent()
639 );
640 buffer
641 });
642}
643
644#[gpui::test]
645fn test_autoindent_adjusts_lines_when_only_text_changes(cx: &mut MutableAppContext) {
646 cx.add_model(|cx| {
647 let text = "
648 fn a() {}
649 "
650 .unindent();
651
652 let mut buffer = Buffer::new(0, text, cx).with_language(Arc::new(rust_lang()), cx);
653
654 buffer.edit_with_autoindent([5..5], "\nb", cx);
655 assert_eq!(
656 buffer.text(),
657 "
658 fn a(
659 b) {}
660 "
661 .unindent()
662 );
663
664 // The indentation suggestion changed because `@end` node (a close paren)
665 // is now at the beginning of the line.
666 buffer.edit_with_autoindent([Point::new(1, 4)..Point::new(1, 5)], "", cx);
667 assert_eq!(
668 buffer.text(),
669 "
670 fn a(
671 ) {}
672 "
673 .unindent()
674 );
675
676 buffer
677 });
678}
679
680#[gpui::test]
681fn test_serialization(cx: &mut gpui::MutableAppContext) {
682 let mut now = Instant::now();
683
684 let buffer1 = cx.add_model(|cx| {
685 let mut buffer = Buffer::new(0, "abc", cx);
686 buffer.edit([3..3], "D", cx);
687
688 now += Duration::from_secs(1);
689 buffer.start_transaction_at(now);
690 buffer.edit([4..4], "E", cx);
691 buffer.end_transaction_at(now, cx);
692 assert_eq!(buffer.text(), "abcDE");
693
694 buffer.undo(cx);
695 assert_eq!(buffer.text(), "abcD");
696
697 buffer.edit([4..4], "F", cx);
698 assert_eq!(buffer.text(), "abcDF");
699 buffer
700 });
701 assert_eq!(buffer1.read(cx).text(), "abcDF");
702
703 let message = buffer1.read(cx).to_proto();
704 let buffer2 = cx.add_model(|cx| Buffer::from_proto(1, message, None, cx).unwrap());
705 assert_eq!(buffer2.read(cx).text(), "abcDF");
706}
707
708#[gpui::test(iterations = 100)]
709fn test_random_collaboration(cx: &mut MutableAppContext, mut rng: StdRng) {
710 let min_peers = env::var("MIN_PEERS")
711 .map(|i| i.parse().expect("invalid `MIN_PEERS` variable"))
712 .unwrap_or(1);
713 let max_peers = env::var("MAX_PEERS")
714 .map(|i| i.parse().expect("invalid `MAX_PEERS` variable"))
715 .unwrap_or(5);
716 let operations = env::var("OPERATIONS")
717 .map(|i| i.parse().expect("invalid `OPERATIONS` variable"))
718 .unwrap_or(10);
719
720 let base_text_len = rng.gen_range(0..10);
721 let base_text = RandomCharIter::new(&mut rng)
722 .take(base_text_len)
723 .collect::<String>();
724 let mut replica_ids = Vec::new();
725 let mut buffers = Vec::new();
726 let network = Rc::new(RefCell::new(Network::new(rng.clone())));
727
728 for i in 0..rng.gen_range(min_peers..=max_peers) {
729 let buffer = cx.add_model(|cx| {
730 let mut buffer = Buffer::new(i as ReplicaId, base_text.as_str(), cx);
731 buffer.set_group_interval(Duration::from_millis(rng.gen_range(0..=200)));
732 let network = network.clone();
733 cx.subscribe(&cx.handle(), move |buffer, _, event, _| {
734 if let Event::Operation(op) = event {
735 network
736 .borrow_mut()
737 .broadcast(buffer.replica_id(), vec![proto::serialize_operation(&op)]);
738 }
739 })
740 .detach();
741 buffer
742 });
743 buffers.push(buffer);
744 replica_ids.push(i as ReplicaId);
745 network.borrow_mut().add_peer(i as ReplicaId);
746 log::info!("Adding initial peer with replica id {}", i);
747 }
748
749 log::info!("initial text: {:?}", base_text);
750
751 let mut now = Instant::now();
752 let mut mutation_count = operations;
753 let mut next_diagnostic_id = 0;
754 let mut active_selections = BTreeMap::default();
755 loop {
756 let replica_index = rng.gen_range(0..replica_ids.len());
757 let replica_id = replica_ids[replica_index];
758 let buffer = &mut buffers[replica_index];
759 let mut new_buffer = None;
760 match rng.gen_range(0..100) {
761 0..=29 if mutation_count != 0 => {
762 buffer.update(cx, |buffer, cx| {
763 buffer.start_transaction_at(now);
764 buffer.randomly_edit(&mut rng, 5, cx);
765 buffer.end_transaction_at(now, cx);
766 log::info!("buffer {} text: {:?}", buffer.replica_id(), buffer.text());
767 });
768 mutation_count -= 1;
769 }
770 30..=39 if mutation_count != 0 => {
771 buffer.update(cx, |buffer, cx| {
772 let mut selections = Vec::new();
773 for id in 0..rng.gen_range(1..=5) {
774 let range = buffer.random_byte_range(0, &mut rng);
775 selections.push(Selection {
776 id,
777 start: buffer.anchor_before(range.start),
778 end: buffer.anchor_before(range.end),
779 reversed: false,
780 goal: SelectionGoal::None,
781 });
782 }
783 let selections: Arc<[Selection<Anchor>]> = selections.into();
784 log::info!(
785 "peer {} setting active selections: {:?}",
786 replica_id,
787 selections
788 );
789 active_selections.insert(replica_id, selections.clone());
790 buffer.set_active_selections(selections, cx);
791 });
792 mutation_count -= 1;
793 }
794 40..=49 if mutation_count != 0 && replica_id == 0 => {
795 let entry_count = rng.gen_range(1..=5);
796 buffer.update(cx, |buffer, cx| {
797 let diagnostics = DiagnosticSet::new(
798 (0..entry_count).map(|_| {
799 let range = buffer.random_byte_range(0, &mut rng);
800 let range = range.to_point_utf16(buffer);
801 DiagnosticEntry {
802 range,
803 diagnostic: Diagnostic {
804 message: post_inc(&mut next_diagnostic_id).to_string(),
805 ..Default::default()
806 },
807 }
808 }),
809 buffer,
810 );
811 log::info!("peer {} setting diagnostics: {:?}", replica_id, diagnostics);
812 buffer.update_diagnostics(diagnostics, cx);
813 });
814 mutation_count -= 1;
815 }
816 50..=59 if replica_ids.len() < max_peers => {
817 let old_buffer = buffer.read(cx).to_proto();
818 let new_replica_id = replica_ids.len() as ReplicaId;
819 log::info!(
820 "Adding new replica {} (replicating from {})",
821 new_replica_id,
822 replica_id
823 );
824 new_buffer = Some(cx.add_model(|cx| {
825 let mut new_buffer =
826 Buffer::from_proto(new_replica_id, old_buffer, None, cx).unwrap();
827 new_buffer.set_group_interval(Duration::from_millis(rng.gen_range(0..=200)));
828 let network = network.clone();
829 cx.subscribe(&cx.handle(), move |buffer, _, event, _| {
830 if let Event::Operation(op) = event {
831 network.borrow_mut().broadcast(
832 buffer.replica_id(),
833 vec![proto::serialize_operation(&op)],
834 );
835 }
836 })
837 .detach();
838 new_buffer
839 }));
840 replica_ids.push(new_replica_id);
841 network.borrow_mut().replicate(replica_id, new_replica_id);
842 }
843 60..=69 if mutation_count != 0 => {
844 buffer.update(cx, |buffer, cx| {
845 buffer.randomly_undo_redo(&mut rng, cx);
846 log::info!("buffer {} text: {:?}", buffer.replica_id(), buffer.text());
847 });
848 mutation_count -= 1;
849 }
850 _ if network.borrow().has_unreceived(replica_id) => {
851 let ops = network
852 .borrow_mut()
853 .receive(replica_id)
854 .into_iter()
855 .map(|op| proto::deserialize_operation(op).unwrap());
856 if ops.len() > 0 {
857 log::info!(
858 "peer {} applying {} ops from the network.",
859 replica_id,
860 ops.len()
861 );
862 buffer.update(cx, |buffer, cx| buffer.apply_ops(ops, cx).unwrap());
863 }
864 }
865 _ => {}
866 }
867
868 now += Duration::from_millis(rng.gen_range(0..=200));
869 buffers.extend(new_buffer);
870
871 for buffer in &buffers {
872 buffer.read(cx).check_invariants();
873 }
874
875 if mutation_count == 0 && network.borrow().is_idle() {
876 break;
877 }
878 }
879
880 let first_buffer = buffers[0].read(cx).snapshot();
881 for buffer in &buffers[1..] {
882 let buffer = buffer.read(cx).snapshot();
883 assert_eq!(
884 buffer.text(),
885 first_buffer.text(),
886 "Replica {} text != Replica 0 text",
887 buffer.replica_id()
888 );
889 assert_eq!(
890 buffer
891 .diagnostics_in_range::<_, usize>(0..buffer.len(), false)
892 .collect::<Vec<_>>(),
893 first_buffer
894 .diagnostics_in_range::<_, usize>(0..first_buffer.len(), false)
895 .collect::<Vec<_>>(),
896 "Replica {} diagnostics != Replica 0 diagnostics",
897 buffer.replica_id()
898 );
899 }
900
901 for buffer in &buffers {
902 let buffer = buffer.read(cx).snapshot();
903 let actual_remote_selections = buffer
904 .remote_selections_in_range(Anchor::MIN..Anchor::MAX)
905 .map(|(replica_id, selections)| (replica_id, selections.collect::<Vec<_>>()))
906 .collect::<Vec<_>>();
907 let expected_remote_selections = active_selections
908 .iter()
909 .filter(|(replica_id, _)| **replica_id != buffer.replica_id())
910 .map(|(replica_id, selections)| (*replica_id, selections.iter().collect::<Vec<_>>()))
911 .collect::<Vec<_>>();
912 assert_eq!(actual_remote_selections, expected_remote_selections);
913 }
914}
915
916#[test]
917fn test_contiguous_ranges() {
918 assert_eq!(
919 contiguous_ranges([1, 2, 3, 5, 6, 9, 10, 11, 12].into_iter(), 100).collect::<Vec<_>>(),
920 &[1..4, 5..7, 9..13]
921 );
922
923 // Respects the `max_len` parameter
924 assert_eq!(
925 contiguous_ranges(
926 [2, 3, 4, 5, 6, 7, 8, 9, 23, 24, 25, 26, 30, 31].into_iter(),
927 3
928 )
929 .collect::<Vec<_>>(),
930 &[2..5, 5..8, 8..10, 23..26, 26..27, 30..32],
931 );
932}
933
934impl Buffer {
935 pub fn enclosing_bracket_point_ranges<T: ToOffset>(
936 &self,
937 range: Range<T>,
938 ) -> Option<(Range<Point>, Range<Point>)> {
939 self.snapshot()
940 .enclosing_bracket_ranges(range)
941 .map(|(start, end)| {
942 let point_start = start.start.to_point(self)..start.end.to_point(self);
943 let point_end = end.start.to_point(self)..end.end.to_point(self);
944 (point_start, point_end)
945 })
946 }
947}
948
949fn rust_lang() -> Language {
950 Language::new(
951 LanguageConfig {
952 name: "Rust".into(),
953 path_suffixes: vec!["rs".to_string()],
954 ..Default::default()
955 },
956 Some(tree_sitter_rust::language()),
957 )
958 .with_indents_query(
959 r#"
960 (call_expression) @indent
961 (field_expression) @indent
962 (_ "(" ")" @end) @indent
963 (_ "{" "}" @end) @indent
964 "#,
965 )
966 .unwrap()
967 .with_brackets_query(
968 r#"
969 ("{" @open "}" @close)
970 "#,
971 )
972 .unwrap()
973 .with_outline_query(
974 r#"
975 (struct_item
976 "struct" @context
977 name: (_) @name) @item
978 (enum_item
979 "enum" @context
980 name: (_) @name) @item
981 (enum_variant
982 name: (_) @name) @item
983 (field_declaration
984 name: (_) @name) @item
985 (impl_item
986 "impl" @context
987 trait: (_)? @name
988 "for"? @context
989 type: (_) @name) @item
990 (function_item
991 "fn" @context
992 name: (_) @name) @item
993 (mod_item
994 "mod" @context
995 name: (_) @name) @item
996 "#,
997 )
998 .unwrap()
999}
1000
1001fn json_lang() -> Language {
1002 Language::new(
1003 LanguageConfig {
1004 name: "Json".into(),
1005 path_suffixes: vec!["js".to_string()],
1006 ..Default::default()
1007 },
1008 Some(tree_sitter_json::language()),
1009 )
1010}
1011
1012fn get_tree_sexp(buffer: &ModelHandle<Buffer>, cx: &gpui::TestAppContext) -> String {
1013 buffer.read_with(cx, |buffer, _| {
1014 buffer.syntax_tree().unwrap().root_node().to_sexp()
1015 })
1016}
1017
1018fn empty(point: Point) -> Range<Point> {
1019 point..point
1020}