liteboxfs 0.2.0

A modern POSIX filesystem in a SQLite database
Documentation 
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
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120

#![cfg(all(feature = "fs", target_os = "linux"))]

use xpct::{be_ok, equal, expect};

use crate::{
    Connection,
    file_metadata::{FileKind, Owner},
    settings::Settings,
};

fn open() -> crate::Result<Connection> {
    Connection::open_for_testing(&Settings::default())
}

#[test]
fn fresh_filesystem_has_only_root_directory() -> crate::Result<()> {
    let mut conn = open()?;

    conn.exec(|fs| {
        expect!(fs.stats())
            .to(be_ok())
            .map(|stats| stats.file_count())
            .to(equal(1u64));
        crate::Result::Ok(())
    })?;

    Ok(())
}

#[test]
fn file_count_includes_each_created_file() -> crate::Result<()> {
    let mut conn = open()?;

    conn.exec(|fs| {
        fs.create("/a.txt", FileKind::Regular, Owner::ROOT)?;
        fs.create("/b.txt", FileKind::Regular, Owner::ROOT)?;
        fs.create("/c.txt", FileKind::Regular, Owner::ROOT)?;

        expect!(fs.stats())
            .to(be_ok())
            .map(|stats| stats.file_count())
            .to(equal(4u64));
        crate::Result::Ok(())
    })?;

    Ok(())
}

#[test]
fn file_count_includes_directories() -> crate::Result<()> {
    let mut conn = open()?;

    conn.exec(|fs| {
        fs.create("/dir", FileKind::Dir, Owner::ROOT)?;
        fs.create("/dir/sub", FileKind::Dir, Owner::ROOT)?;

        expect!(fs.stats())
            .to(be_ok())
            .map(|stats| stats.file_count())
            .to(equal(3u64));
        crate::Result::Ok(())
    })?;

    Ok(())
}

#[test]
fn file_count_decreases_on_delete() -> crate::Result<()> {
    let mut conn = open()?;

    conn.exec(|fs| {
        fs.create("/a.txt", FileKind::Regular, Owner::ROOT)?;
        fs.create("/b.txt", FileKind::Regular, Owner::ROOT)?;
        fs.delete("/a.txt")?;

        expect!(fs.stats())
            .to(be_ok())
            .map(|stats| stats.file_count())
            .to(equal(2u64));
        crate::Result::Ok(())
    })?;

    Ok(())
}

#[test]
fn hard_links_count_as_one_file() -> crate::Result<()> {
    let mut conn = open()?;

    conn.exec(|fs| {
        let mut file = fs.create("/a.txt", FileKind::Regular, Owner::ROOT)?;
        file.link("/b.txt")?;
        drop(file);

        expect!(fs.stats())
            .to(be_ok())
            .map(|stats| stats.file_count())
            .to(equal(2u64));
        crate::Result::Ok(())
    })?;

    Ok(())
}

#[test]
fn temp_files_do_not_count() -> crate::Result<()> {
    let mut conn = open()?;

    conn.exec(|fs| {
        fs.create_temp(Owner::ROOT)?;

        expect!(fs.stats())
            .to(be_ok())
            .map(|stats| stats.file_count())
            .to(equal(1u64));
        crate::Result::Ok(())
    })?;

    Ok(())
}