libbun 0.1.3

Rust facade for hosting JavaScript and TypeScript providers through a replaceable Bun native plugin
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
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145

use libbun::release::{
    LIBBUN_PLUGIN_PATH_ENV, NativePluginResolver, NativePluginSource, RELEASE_TAG,
    current_native_plugin_asset, expected_checksum, verify_file_checksum,
};

#[cfg(feature = "plugin-installer")]
use libbun::release::NativePluginInstall;

#[test]
fn current_asset_names_match_release_contract() {
    let asset = current_native_plugin_asset().expect("current target is supported");
    assert_eq!(asset.release_tag, RELEASE_TAG);
    assert_eq!(asset.repository, "enki/libbun");
    assert_eq!(
        asset.asset_name,
        format!(
            "libbun-plugin-native-{}-{}.tar.zst",
            RELEASE_TAG, asset.target
        )
    );
    assert!(asset.archive_url().ends_with(&asset.asset_name));
    assert_eq!(
        asset.checksums_asset_name(),
        format!("libbun-plugin-native-{}-checksums.txt", RELEASE_TAG)
    );
    if asset.target.ends_with("apple-darwin") {
        assert_eq!(asset.plugin_filename, "liblibbun_plugin_native.dylib");
    } else {
        assert_eq!(asset.plugin_filename, "liblibbun_plugin_native.so");
    }
}

#[test]
fn resolver_prefers_explicit_plugin_path() {
    let asset = current_native_plugin_asset().expect("current target is supported");
    let tempdir = tempfile::tempdir().expect("tempdir");
    let plugin_path = tempdir.path().join(asset.plugin_filename);
    std::fs::write(&plugin_path, b"not a real dynamic library").expect("write plugin placeholder");
    let cached_dir = asset.cache_dir(tempdir.path().join("cache"));
    std::fs::create_dir_all(&cached_dir).expect("create cache dir");
    std::fs::write(cached_dir.join(asset.plugin_filename), b"cached").expect("write cache");

    let resolved = NativePluginResolver::new()
        .with_plugin_path(&plugin_path)
        .with_cache_root(tempdir.path().join("cache"))
        .resolve()
        .expect("explicit plugin path resolves");

    assert_eq!(resolved.path, plugin_path);
    assert_eq!(resolved.source, NativePluginSource::Environment);
}

#[test]
fn resolver_uses_standard_release_cache() {
    let asset = current_native_plugin_asset().expect("current target is supported");
    let tempdir = tempfile::tempdir().expect("tempdir");
    let cached_plugin = asset.cached_plugin_path(tempdir.path());
    std::fs::create_dir_all(cached_plugin.parent().expect("plugin parent")).expect("cache dir");
    std::fs::write(&cached_plugin, b"not a real dynamic library").expect("write plugin");

    let resolved = NativePluginResolver::new()
        .with_cache_root(tempdir.path())
        .with_build_time_plugin(false)
        .resolve()
        .expect("cached plugin resolves");

    assert_eq!(resolved.path, cached_plugin);
    assert_eq!(resolved.source, NativePluginSource::Cache);
}

#[cfg(libbun_download_plugin)]
#[test]
fn resolver_uses_build_time_plugin_after_explicit_path() {
    let build_path =
        libbun::release::build_time_plugin_path().expect("download-plugin emitted plugin path");

    let resolved = NativePluginResolver::new()
        .resolve()
        .expect("build-time plugin resolves");

    assert_eq!(resolved.path, build_path);
    assert_eq!(resolved.source, NativePluginSource::BuildTime);
}

#[test]
fn resolver_missing_plugin_error_is_actionable() {
    let asset = current_native_plugin_asset().expect("current target is supported");
    let tempdir = tempfile::tempdir().expect("tempdir");
    let error = NativePluginResolver::new()
        .with_cache_root(tempdir.path())
        .with_build_time_plugin(false)
        .resolve()
        .expect_err("missing plugin should fail");
    let message = error.to_string();

    assert!(message.contains(LIBBUN_PLUGIN_PATH_ENV), "{message}");
    assert!(message.contains(&asset.asset_name), "{message}");
    assert!(message.contains(&asset.archive_url()), "{message}");
    assert!(message.contains(&asset.target), "{message}");
}

#[test]
fn checksum_helpers_parse_and_verify_release_format() {
    let tempdir = tempfile::tempdir().expect("tempdir");
    let asset_path = tempdir.path().join("asset.txt");
    std::fs::write(&asset_path, b"hello").expect("write asset");
    let checksums = "2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824  asset.txt\n";

    assert_eq!(
        expected_checksum(checksums, "asset.txt").expect("checksum entry"),
        "2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824"
    );
    verify_file_checksum(checksums, "asset.txt", &asset_path).expect("checksum verifies");
}

#[cfg(feature = "plugin-installer")]
#[test]
#[ignore = "downloads and extracts the current GitHub release asset"]
fn installer_downloads_current_release_asset() {
    let asset = current_native_plugin_asset().expect("current target is supported");
    let tempdir = tempfile::tempdir().expect("tempdir");

    let resolved = NativePluginInstall::new()
        .with_cache_root(tempdir.path())
        .install()
        .expect("release asset installs");

    assert_eq!(resolved.source, NativePluginSource::Cache);
    assert_eq!(resolved.path, asset.cached_plugin_path(tempdir.path()));
    assert!(resolved.path.is_file());
    assert!(
        asset
            .cache_dir(tempdir.path())
            .join("checksums.txt")
            .is_file()
    );
    assert!(asset.cache_dir(tempdir.path()).join("SOURCE.txt").is_file());
    assert!(asset.cache_dir(tempdir.path()).join("NOTICE.txt").is_file());
    assert!(
        asset
            .cache_dir(tempdir.path())
            .join("licenses.json")
            .is_file()
    );
}