1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
|
use std::{
fs,
collections::HashSet,
};
use tempfile::tempdir;
use ra_vfs::{Vfs, VfsChange};
#[test]
fn test_vfs_works() -> std::io::Result<()> {
let files = [
("a/foo.rs", "hello"),
("a/bar.rs", "world"),
("a/b/baz.rs", "nested hello"),
];
let dir = tempdir()?;
for (path, text) in files.iter() {
let file_path = dir.path().join(path);
fs::create_dir_all(file_path.parent().unwrap())?;
fs::write(file_path, text)?
}
let a_root = dir.path().join("a");
let b_root = dir.path().join("a/b");
let (mut vfs, _) = Vfs::new(vec![a_root, b_root]);
for _ in 0..2 {
let task = vfs.task_receiver().recv().unwrap();
vfs.handle_task(task);
}
{
let files = vfs
.commit_changes()
.into_iter()
.flat_map(|change| {
let files = match change {
VfsChange::AddRoot { files, .. } => files,
_ => panic!("unexpected change"),
};
files.into_iter().map(|(_id, path, text)| {
let text: String = (&*text).clone();
(format!("{}", path.display()), text)
})
})
.collect::<HashSet<_>>();
let expected_files = [
("foo.rs", "hello"),
("bar.rs", "world"),
("baz.rs", "nested hello"),
]
.iter()
.map(|(path, text)| (path.to_string(), text.to_string()))
.collect::<HashSet<_>>();
assert_eq!(files, expected_files);
}
vfs.add_file_overlay(&dir.path().join("a/b/baz.rs"), "quux".to_string());
let change = vfs.commit_changes().pop().unwrap();
match change {
VfsChange::ChangeFile { text, .. } => assert_eq!(&*text, "quux"),
_ => panic!("unexpected change"),
}
vfs.change_file_overlay(&dir.path().join("a/b/baz.rs"), "m".to_string());
let change = vfs.commit_changes().pop().unwrap();
match change {
VfsChange::ChangeFile { text, .. } => assert_eq!(&*text, "m"),
_ => panic!("unexpected change"),
}
vfs.remove_file_overlay(&dir.path().join("a/b/baz.rs"));
let change = vfs.commit_changes().pop().unwrap();
match change {
VfsChange::ChangeFile { text, .. } => assert_eq!(&*text, "nested hello"),
_ => panic!("unexpected change"),
}
vfs.add_file_overlay(&dir.path().join("a/b/spam.rs"), "spam".to_string());
let change = vfs.commit_changes().pop().unwrap();
match change {
VfsChange::AddFile { text, path, .. } => {
assert_eq!(&*text, "spam");
assert_eq!(path, "spam.rs");
}
_ => panic!("unexpected change"),
}
vfs.remove_file_overlay(&dir.path().join("a/b/spam.rs"));
let change = vfs.commit_changes().pop().unwrap();
match change {
VfsChange::RemoveFile { .. } => (),
_ => panic!("unexpected change"),
}
vfs.shutdown().unwrap();
Ok(())
}
|
