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", 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 [empty(Point::new(1, 1)), empty(Point::new(2, 1))],
609 "()",
610 4,
611 cx,
612 );
613 assert_eq!(
614 buffer.text(),
615 "
616 fn a() {
617 c();
618 d();
619 }
620 "
621 .unindent()
622 );
623
624 // When appending new content after these lines, the indentation is based on the
625 // preceding lines' actual indentation.
626 buffer.edit_with_autoindent(
627 [empty(Point::new(1, 1)), empty(Point::new(2, 1))],
628 "\n.f\n.g",
629 4,
630 cx,
631 );
632 assert_eq!(
633 buffer.text(),
634 "
635 fn a() {
636 c
637 .f
638 .g();
639 d
640 .f
641 .g();
642 }
643 "
644 .unindent()
645 );
646 buffer
647 });
648}
649
650#[gpui::test]
651fn test_autoindent_adjusts_lines_when_only_text_changes(cx: &mut MutableAppContext) {
652 cx.add_model(|cx| {
653 let text = "
654 fn a() {}
655 "
656 .unindent();
657
658 let mut buffer = Buffer::new(0, text, cx).with_language(Arc::new(rust_lang()), cx);
659
660 buffer.edit_with_autoindent([5..5], "\nb", 4, cx);
661 assert_eq!(
662 buffer.text(),
663 "
664 fn a(
665 b) {}
666 "
667 .unindent()
668 );
669
670 // The indentation suggestion changed because `@end` node (a close paren)
671 // is now at the beginning of the line.
672 buffer.edit_with_autoindent([Point::new(1, 4)..Point::new(1, 5)], "", 4, cx);
673 assert_eq!(
674 buffer.text(),
675 "
676 fn a(
677 ) {}
678 "
679 .unindent()
680 );
681
682 buffer
683 });
684}
685
686#[gpui::test]
687fn test_serialization(cx: &mut gpui::MutableAppContext) {
688 let mut now = Instant::now();
689
690 let buffer1 = cx.add_model(|cx| {
691 let mut buffer = Buffer::new(0, "abc", cx);
692 buffer.edit([3..3], "D", cx);
693
694 now += Duration::from_secs(1);
695 buffer.start_transaction_at(now);
696 buffer.edit([4..4], "E", cx);
697 buffer.end_transaction_at(now, cx);
698 assert_eq!(buffer.text(), "abcDE");
699
700 buffer.undo(cx);
701 assert_eq!(buffer.text(), "abcD");
702
703 buffer.edit([4..4], "F", cx);
704 assert_eq!(buffer.text(), "abcDF");
705 buffer
706 });
707 assert_eq!(buffer1.read(cx).text(), "abcDF");
708
709 let message = buffer1.read(cx).to_proto();
710 let buffer2 = cx.add_model(|cx| Buffer::from_proto(1, message, None, cx).unwrap());
711 assert_eq!(buffer2.read(cx).text(), "abcDF");
712}
713
714#[gpui::test(iterations = 100)]
715fn test_random_collaboration(cx: &mut MutableAppContext, mut rng: StdRng) {
716 let min_peers = env::var("MIN_PEERS")
717 .map(|i| i.parse().expect("invalid `MIN_PEERS` variable"))
718 .unwrap_or(1);
719 let max_peers = env::var("MAX_PEERS")
720 .map(|i| i.parse().expect("invalid `MAX_PEERS` variable"))
721 .unwrap_or(5);
722 let operations = env::var("OPERATIONS")
723 .map(|i| i.parse().expect("invalid `OPERATIONS` variable"))
724 .unwrap_or(10);
725
726 let base_text_len = rng.gen_range(0..10);
727 let base_text = RandomCharIter::new(&mut rng)
728 .take(base_text_len)
729 .collect::<String>();
730 let mut replica_ids = Vec::new();
731 let mut buffers = Vec::new();
732 let network = Rc::new(RefCell::new(Network::new(rng.clone())));
733 let base_buffer = cx.add_model(|cx| Buffer::new(0, base_text.as_str(), cx));
734
735 for i in 0..rng.gen_range(min_peers..=max_peers) {
736 let buffer = cx.add_model(|cx| {
737 let mut buffer =
738 Buffer::from_proto(i as ReplicaId, base_buffer.read(cx).to_proto(), None, cx)
739 .unwrap();
740 buffer.set_group_interval(Duration::from_millis(rng.gen_range(0..=200)));
741 let network = network.clone();
742 cx.subscribe(&cx.handle(), move |buffer, _, event, _| {
743 if let Event::Operation(op) = event {
744 network
745 .borrow_mut()
746 .broadcast(buffer.replica_id(), vec![proto::serialize_operation(&op)]);
747 }
748 })
749 .detach();
750 buffer
751 });
752 buffers.push(buffer);
753 replica_ids.push(i as ReplicaId);
754 network.borrow_mut().add_peer(i as ReplicaId);
755 log::info!("Adding initial peer with replica id {}", i);
756 }
757
758 log::info!("initial text: {:?}", base_text);
759
760 let mut now = Instant::now();
761 let mut mutation_count = operations;
762 let mut next_diagnostic_id = 0;
763 let mut active_selections = BTreeMap::default();
764 loop {
765 let replica_index = rng.gen_range(0..replica_ids.len());
766 let replica_id = replica_ids[replica_index];
767 let buffer = &mut buffers[replica_index];
768 let mut new_buffer = None;
769 match rng.gen_range(0..100) {
770 0..=29 if mutation_count != 0 => {
771 buffer.update(cx, |buffer, cx| {
772 buffer.start_transaction_at(now);
773 buffer.randomly_edit(&mut rng, 5, cx);
774 buffer.end_transaction_at(now, cx);
775 log::info!("buffer {} text: {:?}", buffer.replica_id(), buffer.text());
776 });
777 mutation_count -= 1;
778 }
779 30..=39 if mutation_count != 0 => {
780 buffer.update(cx, |buffer, cx| {
781 let mut selections = Vec::new();
782 for id in 0..rng.gen_range(1..=5) {
783 let range = buffer.random_byte_range(0, &mut rng);
784 selections.push(Selection {
785 id,
786 start: buffer.anchor_before(range.start),
787 end: buffer.anchor_before(range.end),
788 reversed: false,
789 goal: SelectionGoal::None,
790 });
791 }
792 let selections: Arc<[Selection<Anchor>]> = selections.into();
793 log::info!(
794 "peer {} setting active selections: {:?}",
795 replica_id,
796 selections
797 );
798 active_selections.insert(replica_id, selections.clone());
799 buffer.set_active_selections(selections, cx);
800 });
801 mutation_count -= 1;
802 }
803 40..=49 if mutation_count != 0 && replica_id == 0 => {
804 let entry_count = rng.gen_range(1..=5);
805 buffer.update(cx, |buffer, cx| {
806 let diagnostics = DiagnosticSet::new(
807 (0..entry_count).map(|_| {
808 let range = buffer.random_byte_range(0, &mut rng);
809 let range = range.to_point_utf16(buffer);
810 DiagnosticEntry {
811 range,
812 diagnostic: Diagnostic {
813 message: post_inc(&mut next_diagnostic_id).to_string(),
814 ..Default::default()
815 },
816 }
817 }),
818 buffer,
819 );
820 log::info!("peer {} setting diagnostics: {:?}", replica_id, diagnostics);
821 buffer.update_diagnostics(diagnostics, cx);
822 });
823 mutation_count -= 1;
824 }
825 50..=59 if replica_ids.len() < max_peers => {
826 let old_buffer = buffer.read(cx).to_proto();
827 let new_replica_id = (0..=replica_ids.len() as ReplicaId)
828 .filter(|replica_id| *replica_id != buffer.read(cx).replica_id())
829 .choose(&mut rng)
830 .unwrap();
831 log::info!(
832 "Adding new replica {} (replicating from {})",
833 new_replica_id,
834 replica_id
835 );
836 new_buffer = Some(cx.add_model(|cx| {
837 let mut new_buffer =
838 Buffer::from_proto(new_replica_id, old_buffer, None, cx).unwrap();
839 log::info!(
840 "New replica {} text: {:?}",
841 new_buffer.replica_id(),
842 new_buffer.text()
843 );
844 new_buffer.set_group_interval(Duration::from_millis(rng.gen_range(0..=200)));
845 let network = network.clone();
846 cx.subscribe(&cx.handle(), move |buffer, _, event, _| {
847 if let Event::Operation(op) = event {
848 network.borrow_mut().broadcast(
849 buffer.replica_id(),
850 vec![proto::serialize_operation(&op)],
851 );
852 }
853 })
854 .detach();
855 new_buffer
856 }));
857 network.borrow_mut().replicate(replica_id, new_replica_id);
858
859 if new_replica_id as usize == replica_ids.len() {
860 replica_ids.push(new_replica_id);
861 } else {
862 let new_buffer = new_buffer.take().unwrap();
863 while network.borrow().has_unreceived(new_replica_id) {
864 let ops = network
865 .borrow_mut()
866 .receive(new_replica_id)
867 .into_iter()
868 .map(|op| proto::deserialize_operation(op).unwrap());
869 if ops.len() > 0 {
870 log::info!(
871 "peer {} (version: {:?}) applying {} ops from the network. {:?}",
872 new_replica_id,
873 buffer.read(cx).version(),
874 ops.len(),
875 ops
876 );
877 new_buffer.update(cx, |new_buffer, cx| {
878 new_buffer.apply_ops(ops, cx).unwrap();
879 });
880 }
881 }
882 buffers[new_replica_id as usize] = new_buffer;
883 }
884 }
885 60..=69 if mutation_count != 0 => {
886 buffer.update(cx, |buffer, cx| {
887 buffer.randomly_undo_redo(&mut rng, cx);
888 log::info!("buffer {} text: {:?}", buffer.replica_id(), buffer.text());
889 });
890 mutation_count -= 1;
891 }
892 _ if network.borrow().has_unreceived(replica_id) => {
893 let ops = network
894 .borrow_mut()
895 .receive(replica_id)
896 .into_iter()
897 .map(|op| proto::deserialize_operation(op).unwrap());
898 if ops.len() > 0 {
899 log::info!(
900 "peer {} (version: {:?}) applying {} ops from the network. {:?}",
901 replica_id,
902 buffer.read(cx).version(),
903 ops.len(),
904 ops
905 );
906 buffer.update(cx, |buffer, cx| buffer.apply_ops(ops, cx).unwrap());
907 }
908 }
909 _ => {}
910 }
911
912 now += Duration::from_millis(rng.gen_range(0..=200));
913 buffers.extend(new_buffer);
914
915 for buffer in &buffers {
916 buffer.read(cx).check_invariants();
917 }
918
919 if mutation_count == 0 && network.borrow().is_idle() {
920 break;
921 }
922 }
923
924 let first_buffer = buffers[0].read(cx).snapshot();
925 for buffer in &buffers[1..] {
926 let buffer = buffer.read(cx).snapshot();
927 assert_eq!(
928 buffer.version(),
929 first_buffer.version(),
930 "Replica {} version != Replica 0 version",
931 buffer.replica_id()
932 );
933 assert_eq!(
934 buffer.text(),
935 first_buffer.text(),
936 "Replica {} text != Replica 0 text",
937 buffer.replica_id()
938 );
939 assert_eq!(
940 buffer
941 .diagnostics_in_range::<_, usize>(0..buffer.len(), false)
942 .collect::<Vec<_>>(),
943 first_buffer
944 .diagnostics_in_range::<_, usize>(0..first_buffer.len(), false)
945 .collect::<Vec<_>>(),
946 "Replica {} diagnostics != Replica 0 diagnostics",
947 buffer.replica_id()
948 );
949 }
950
951 for buffer in &buffers {
952 let buffer = buffer.read(cx).snapshot();
953 let actual_remote_selections = buffer
954 .remote_selections_in_range(Anchor::MIN..Anchor::MAX)
955 .map(|(replica_id, selections)| (replica_id, selections.collect::<Vec<_>>()))
956 .collect::<Vec<_>>();
957 let expected_remote_selections = active_selections
958 .iter()
959 .filter(|(replica_id, _)| **replica_id != buffer.replica_id())
960 .map(|(replica_id, selections)| (*replica_id, selections.iter().collect::<Vec<_>>()))
961 .collect::<Vec<_>>();
962 assert_eq!(
963 actual_remote_selections,
964 expected_remote_selections,
965 "Replica {} remote selections != expected selections",
966 buffer.replica_id()
967 );
968 }
969}
970
971#[test]
972fn test_contiguous_ranges() {
973 assert_eq!(
974 contiguous_ranges([1, 2, 3, 5, 6, 9, 10, 11, 12].into_iter(), 100).collect::<Vec<_>>(),
975 &[1..4, 5..7, 9..13]
976 );
977
978 // Respects the `max_len` parameter
979 assert_eq!(
980 contiguous_ranges(
981 [2, 3, 4, 5, 6, 7, 8, 9, 23, 24, 25, 26, 30, 31].into_iter(),
982 3
983 )
984 .collect::<Vec<_>>(),
985 &[2..5, 5..8, 8..10, 23..26, 26..27, 30..32],
986 );
987}
988
989impl Buffer {
990 pub fn enclosing_bracket_point_ranges<T: ToOffset>(
991 &self,
992 range: Range<T>,
993 ) -> Option<(Range<Point>, Range<Point>)> {
994 self.snapshot()
995 .enclosing_bracket_ranges(range)
996 .map(|(start, end)| {
997 let point_start = start.start.to_point(self)..start.end.to_point(self);
998 let point_end = end.start.to_point(self)..end.end.to_point(self);
999 (point_start, point_end)
1000 })
1001 }
1002}
1003
1004fn rust_lang() -> Language {
1005 Language::new(
1006 LanguageConfig {
1007 name: "Rust".into(),
1008 path_suffixes: vec!["rs".to_string()],
1009 ..Default::default()
1010 },
1011 Some(tree_sitter_rust::language()),
1012 )
1013 .with_indents_query(
1014 r#"
1015 (call_expression) @indent
1016 (field_expression) @indent
1017 (_ "(" ")" @end) @indent
1018 (_ "{" "}" @end) @indent
1019 "#,
1020 )
1021 .unwrap()
1022 .with_brackets_query(
1023 r#"
1024 ("{" @open "}" @close)
1025 "#,
1026 )
1027 .unwrap()
1028 .with_outline_query(
1029 r#"
1030 (struct_item
1031 "struct" @context
1032 name: (_) @name) @item
1033 (enum_item
1034 "enum" @context
1035 name: (_) @name) @item
1036 (enum_variant
1037 name: (_) @name) @item
1038 (field_declaration
1039 name: (_) @name) @item
1040 (impl_item
1041 "impl" @context
1042 trait: (_)? @name
1043 "for"? @context
1044 type: (_) @name) @item
1045 (function_item
1046 "fn" @context
1047 name: (_) @name) @item
1048 (mod_item
1049 "mod" @context
1050 name: (_) @name) @item
1051 "#,
1052 )
1053 .unwrap()
1054}
1055
1056fn json_lang() -> Language {
1057 Language::new(
1058 LanguageConfig {
1059 name: "Json".into(),
1060 path_suffixes: vec!["js".to_string()],
1061 ..Default::default()
1062 },
1063 Some(tree_sitter_json::language()),
1064 )
1065}
1066
1067fn get_tree_sexp(buffer: &ModelHandle<Buffer>, cx: &gpui::TestAppContext) -> String {
1068 buffer.read_with(cx, |buffer, _| {
1069 buffer.syntax_tree().unwrap().root_node().to_sexp()
1070 })
1071}
1072
1073fn empty(point: Point) -> Range<Point> {
1074 point..point
1075}