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 let base_buffer = cx.add_model(|cx| Buffer::new(0, base_text.as_str(), cx));
749
750 for i in 0..rng.gen_range(min_peers..=max_peers) {
751 let buffer = cx.add_model(|cx| {
752 let mut buffer =
753 Buffer::from_proto(i as ReplicaId, base_buffer.read(cx).to_proto(), None, cx)
754 .unwrap();
755 buffer.set_group_interval(Duration::from_millis(rng.gen_range(0..=200)));
756 let network = network.clone();
757 cx.subscribe(&cx.handle(), move |buffer, _, event, _| {
758 if let Event::Operation(op) = event {
759 network
760 .borrow_mut()
761 .broadcast(buffer.replica_id(), vec![proto::serialize_operation(&op)]);
762 }
763 })
764 .detach();
765 buffer
766 });
767 buffers.push(buffer);
768 replica_ids.push(i as ReplicaId);
769 network.borrow_mut().add_peer(i as ReplicaId);
770 log::info!("Adding initial peer with replica id {}", i);
771 }
772
773 log::info!("initial text: {:?}", base_text);
774
775 let mut now = Instant::now();
776 let mut mutation_count = operations;
777 let mut next_diagnostic_id = 0;
778 let mut active_selections = BTreeMap::default();
779 loop {
780 let replica_index = rng.gen_range(0..replica_ids.len());
781 let replica_id = replica_ids[replica_index];
782 let buffer = &mut buffers[replica_index];
783 let mut new_buffer = None;
784 match rng.gen_range(0..100) {
785 0..=29 if mutation_count != 0 => {
786 buffer.update(cx, |buffer, cx| {
787 buffer.start_transaction_at(now);
788 buffer.randomly_edit(&mut rng, 5, cx);
789 buffer.end_transaction_at(now, cx);
790 log::info!("buffer {} text: {:?}", buffer.replica_id(), buffer.text());
791 });
792 mutation_count -= 1;
793 }
794 30..=39 if mutation_count != 0 => {
795 buffer.update(cx, |buffer, cx| {
796 let mut selections = Vec::new();
797 for id in 0..rng.gen_range(1..=5) {
798 let range = buffer.random_byte_range(0, &mut rng);
799 selections.push(Selection {
800 id,
801 start: buffer.anchor_before(range.start),
802 end: buffer.anchor_before(range.end),
803 reversed: false,
804 goal: SelectionGoal::None,
805 });
806 }
807 let selections: Arc<[Selection<Anchor>]> = selections.into();
808 log::info!(
809 "peer {} setting active selections: {:?}",
810 replica_id,
811 selections
812 );
813 active_selections.insert(replica_id, selections.clone());
814 buffer.set_active_selections(selections, cx);
815 });
816 mutation_count -= 1;
817 }
818 40..=49 if mutation_count != 0 && replica_id == 0 => {
819 let entry_count = rng.gen_range(1..=5);
820 buffer.update(cx, |buffer, cx| {
821 let diagnostics = DiagnosticSet::new(
822 (0..entry_count).map(|_| {
823 let range = buffer.random_byte_range(0, &mut rng);
824 let range = range.to_point_utf16(buffer);
825 DiagnosticEntry {
826 range,
827 diagnostic: Diagnostic {
828 message: post_inc(&mut next_diagnostic_id).to_string(),
829 ..Default::default()
830 },
831 }
832 }),
833 buffer,
834 );
835 log::info!("peer {} setting diagnostics: {:?}", replica_id, diagnostics);
836 buffer.update_diagnostics(diagnostics, cx);
837 });
838 mutation_count -= 1;
839 }
840 50..=59 if replica_ids.len() < max_peers => {
841 let old_buffer = buffer.read(cx).to_proto();
842 let new_replica_id = (0..=replica_ids.len() as ReplicaId)
843 .filter(|replica_id| *replica_id != buffer.read(cx).replica_id())
844 .choose(&mut rng)
845 .unwrap();
846 log::info!(
847 "Adding new replica {} (replicating from {})",
848 new_replica_id,
849 replica_id
850 );
851 new_buffer = Some(cx.add_model(|cx| {
852 let mut new_buffer =
853 Buffer::from_proto(new_replica_id, old_buffer, None, cx).unwrap();
854 log::info!(
855 "New replica {} text: {:?}",
856 new_buffer.replica_id(),
857 new_buffer.text()
858 );
859 new_buffer.set_group_interval(Duration::from_millis(rng.gen_range(0..=200)));
860 let network = network.clone();
861 cx.subscribe(&cx.handle(), move |buffer, _, event, _| {
862 if let Event::Operation(op) = event {
863 network.borrow_mut().broadcast(
864 buffer.replica_id(),
865 vec![proto::serialize_operation(&op)],
866 );
867 }
868 })
869 .detach();
870 new_buffer
871 }));
872 network.borrow_mut().replicate(replica_id, new_replica_id);
873
874 if new_replica_id as usize == replica_ids.len() {
875 replica_ids.push(new_replica_id);
876 } else {
877 let new_buffer = new_buffer.take().unwrap();
878 while network.borrow().has_unreceived(new_replica_id) {
879 let ops = network
880 .borrow_mut()
881 .receive(new_replica_id)
882 .into_iter()
883 .map(|op| proto::deserialize_operation(op).unwrap());
884 if ops.len() > 0 {
885 log::info!(
886 "peer {} (version: {:?}) applying {} ops from the network. {:?}",
887 new_replica_id,
888 buffer.read(cx).version(),
889 ops.len(),
890 ops
891 );
892 new_buffer.update(cx, |new_buffer, cx| {
893 new_buffer.apply_ops(ops, cx).unwrap();
894 });
895 }
896 }
897 buffers[new_replica_id as usize] = new_buffer;
898 }
899 }
900 60..=69 if mutation_count != 0 => {
901 buffer.update(cx, |buffer, cx| {
902 buffer.randomly_undo_redo(&mut rng, cx);
903 log::info!("buffer {} text: {:?}", buffer.replica_id(), buffer.text());
904 });
905 mutation_count -= 1;
906 }
907 _ if network.borrow().has_unreceived(replica_id) => {
908 let ops = network
909 .borrow_mut()
910 .receive(replica_id)
911 .into_iter()
912 .map(|op| proto::deserialize_operation(op).unwrap());
913 if ops.len() > 0 {
914 log::info!(
915 "peer {} (version: {:?}) applying {} ops from the network. {:?}",
916 replica_id,
917 buffer.read(cx).version(),
918 ops.len(),
919 ops
920 );
921 buffer.update(cx, |buffer, cx| buffer.apply_ops(ops, cx).unwrap());
922 }
923 }
924 _ => {}
925 }
926
927 now += Duration::from_millis(rng.gen_range(0..=200));
928 buffers.extend(new_buffer);
929
930 for buffer in &buffers {
931 buffer.read(cx).check_invariants();
932 }
933
934 if mutation_count == 0 && network.borrow().is_idle() {
935 break;
936 }
937 }
938
939 let first_buffer = buffers[0].read(cx).snapshot();
940 for buffer in &buffers[1..] {
941 let buffer = buffer.read(cx).snapshot();
942 assert_eq!(
943 buffer.version(),
944 first_buffer.version(),
945 "Replica {} version != Replica 0 version",
946 buffer.replica_id()
947 );
948 assert_eq!(
949 buffer.text(),
950 first_buffer.text(),
951 "Replica {} text != Replica 0 text",
952 buffer.replica_id()
953 );
954 assert_eq!(
955 buffer
956 .diagnostics_in_range::<_, usize>(0..buffer.len(), false)
957 .collect::<Vec<_>>(),
958 first_buffer
959 .diagnostics_in_range::<_, usize>(0..first_buffer.len(), false)
960 .collect::<Vec<_>>(),
961 "Replica {} diagnostics != Replica 0 diagnostics",
962 buffer.replica_id()
963 );
964 }
965
966 for buffer in &buffers {
967 let buffer = buffer.read(cx).snapshot();
968 let actual_remote_selections = buffer
969 .remote_selections_in_range(Anchor::MIN..Anchor::MAX)
970 .map(|(replica_id, selections)| (replica_id, selections.collect::<Vec<_>>()))
971 .collect::<Vec<_>>();
972 let expected_remote_selections = active_selections
973 .iter()
974 .filter(|(replica_id, _)| **replica_id != buffer.replica_id())
975 .map(|(replica_id, selections)| (*replica_id, selections.iter().collect::<Vec<_>>()))
976 .collect::<Vec<_>>();
977 assert_eq!(
978 actual_remote_selections,
979 expected_remote_selections,
980 "Replica {} remote selections != expected selections",
981 buffer.replica_id()
982 );
983 }
984}
985
986#[test]
987fn test_contiguous_ranges() {
988 assert_eq!(
989 contiguous_ranges([1, 2, 3, 5, 6, 9, 10, 11, 12].into_iter(), 100).collect::<Vec<_>>(),
990 &[1..4, 5..7, 9..13]
991 );
992
993 // Respects the `max_len` parameter
994 assert_eq!(
995 contiguous_ranges(
996 [2, 3, 4, 5, 6, 7, 8, 9, 23, 24, 25, 26, 30, 31].into_iter(),
997 3
998 )
999 .collect::<Vec<_>>(),
1000 &[2..5, 5..8, 8..10, 23..26, 26..27, 30..32],
1001 );
1002}
1003
1004impl Buffer {
1005 pub fn enclosing_bracket_point_ranges<T: ToOffset>(
1006 &self,
1007 range: Range<T>,
1008 ) -> Option<(Range<Point>, Range<Point>)> {
1009 self.snapshot()
1010 .enclosing_bracket_ranges(range)
1011 .map(|(start, end)| {
1012 let point_start = start.start.to_point(self)..start.end.to_point(self);
1013 let point_end = end.start.to_point(self)..end.end.to_point(self);
1014 (point_start, point_end)
1015 })
1016 }
1017}
1018
1019fn rust_lang() -> Language {
1020 Language::new(
1021 LanguageConfig {
1022 name: "Rust".into(),
1023 path_suffixes: vec!["rs".to_string()],
1024 ..Default::default()
1025 },
1026 Some(tree_sitter_rust::language()),
1027 )
1028 .with_indents_query(
1029 r#"
1030 (call_expression) @indent
1031 (field_expression) @indent
1032 (_ "(" ")" @end) @indent
1033 (_ "{" "}" @end) @indent
1034 "#,
1035 )
1036 .unwrap()
1037 .with_brackets_query(
1038 r#"
1039 ("{" @open "}" @close)
1040 "#,
1041 )
1042 .unwrap()
1043 .with_outline_query(
1044 r#"
1045 (struct_item
1046 "struct" @context
1047 name: (_) @name) @item
1048 (enum_item
1049 "enum" @context
1050 name: (_) @name) @item
1051 (enum_variant
1052 name: (_) @name) @item
1053 (field_declaration
1054 name: (_) @name) @item
1055 (impl_item
1056 "impl" @context
1057 trait: (_)? @name
1058 "for"? @context
1059 type: (_) @name) @item
1060 (function_item
1061 "fn" @context
1062 name: (_) @name) @item
1063 (mod_item
1064 "mod" @context
1065 name: (_) @name) @item
1066 "#,
1067 )
1068 .unwrap()
1069}
1070
1071fn json_lang() -> Language {
1072 Language::new(
1073 LanguageConfig {
1074 name: "Json".into(),
1075 path_suffixes: vec!["js".to_string()],
1076 ..Default::default()
1077 },
1078 Some(tree_sitter_json::language()),
1079 )
1080}
1081
1082fn get_tree_sexp(buffer: &ModelHandle<Buffer>, cx: &gpui::TestAppContext) -> String {
1083 buffer.read_with(cx, |buffer, _| {
1084 buffer.syntax_tree().unwrap().root_node().to_sexp()
1085 })
1086}
1087
1088fn empty(point: Point) -> Range<Point> {
1089 point..point
1090}