alef 0.82.1

Opinionated polyglot binding generator for Rust libraries
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
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198

//! Coverage for `render_go_mod`: registry vs local mode, testify indirect deps, and extras
//! (dependencies/dev-dependencies) merging, sorting, and idempotency.
//!
//! Split out of `tests.rs`, which is over the 1000-line cap and may not grow.

use super::render_go_mod;

#[test]
fn render_go_mod_without_extras() {
    let out = render_go_mod("github.com/example/mylib", None, "v1.0.0", None);
    assert!(
        out.contains("github.com/example/mylib v1.0.0"),
        "should contain main module require"
    );
    assert!(
        out.contains("github.com/stretchr/testify v1.11.1"),
        "should contain testify require"
    );
    assert!(
        !out.contains("github.com/tree-sitter"),
        "should not contain tree-sitter without extras"
    );
}

#[test]
fn render_go_mod_includes_testify_indirect_deps() {
    // A go.mod that lists testify but omits its transitive deps makes `go test`
    // abort with "updates to go.mod needed; ... go mod tidy". The generated
    // test_app must carry a complete dependency graph so it builds without a
    // manual tidy (and offline).
    let out = render_go_mod("github.com/example/mylib", None, "v1.0.0", None);
    for indirect in [
        "github.com/davecgh/go-spew v1.1.1 // indirect",
        "github.com/pmezard/go-difflib v1.0.0 // indirect",
        "gopkg.in/yaml.v3 v3.0.1 // indirect",
    ] {
        assert!(
            out.contains(indirect),
            "go.mod must contain testify indirect dep `{indirect}`, got:\n{out}"
        );
    }
}

#[test]
fn render_go_mod_registry_mode_uses_sibling_module_path() {
    // Registry mode (no replace): the main module must NOT be a subpath of the
    // module under test, or Go ignores the `require` directive and resolves a
    // stray upstream tag instead of the pinned version.
    let out = render_go_mod("github.com/example/mylib", None, "v1.0.0", None);
    assert!(
        out.contains("module github.com/example/mylib-e2e"),
        "registry-mode main module must be a sibling path, got: {out}"
    );
    assert!(
        !out.contains("module github.com/example/mylib/e2e"),
        "registry-mode main module must not shadow the module under test, got: {out}"
    );
}

#[test]
fn render_go_mod_local_mode_uses_nested_module_path() {
    // Local mode (replace present): a nested `/e2e` main module resolves via the
    // replace directive, so keep the historical nested path.
    let out = render_go_mod("github.com/example/mylib", Some("../../packages/go"), "v0.0.0", None);
    assert!(
        out.contains("module github.com/example/mylib/e2e"),
        "local-mode main module should stay nested, got: {out}"
    );
}

#[test]
fn render_go_mod_with_extras_includes_requires() {
    use crate::core::config::manifest_extras::{ExtraDepSpec, ManifestExtras};
    let mut extras = ManifestExtras::default();
    extras.dev_dependencies.insert(
        "github.com/tree-sitter/go-tree-sitter".to_string(),
        ExtraDepSpec::Simple("v0.24.0".to_string()),
    );
    let out = render_go_mod("github.com/example/mylib", None, "v1.0.0", Some(&extras));
    assert!(
        out.contains("github.com/tree-sitter/go-tree-sitter v0.24.0"),
        "should include tree-sitter extra, got: {out}"
    );
    assert!(
        out.contains("github.com/example/mylib v1.0.0"),
        "should still contain main module"
    );
}

#[test]
fn render_go_mod_extras_with_replace_directive() {
    use crate::core::config::manifest_extras::{ExtraDepSpec, ManifestExtras};
    let mut extras = ManifestExtras::default();
    extras.dependencies.insert(
        "github.com/upstream/lib".to_string(),
        ExtraDepSpec::Simple("v0.5.0".to_string()),
    );
    let out = render_go_mod(
        "github.com/example/mylib",
        Some("../../packages/go"),
        "v0.0.0",
        Some(&extras),
    );
    assert!(
        out.contains("github.com/upstream/lib v0.5.0"),
        "should include upstream lib"
    );
    assert!(
        out.contains("replace github.com/example/mylib => ../../packages/go"),
        "should include replace directive"
    );
}

#[test]
fn render_go_mod_empty_extras_matches_no_extras() {
    use crate::core::config::manifest_extras::ManifestExtras;
    let extras = ManifestExtras::default();
    let without_empty = render_go_mod("github.com/example/mylib", None, "v1.0.0", None);
    let with_empty = render_go_mod("github.com/example/mylib", None, "v1.0.0", Some(&extras));
    assert_eq!(without_empty, with_empty, "empty extras should be equivalent to None");
}

#[test]
fn render_go_mod_extras_are_sorted_deterministically() {
    use crate::core::config::manifest_extras::{ExtraDepSpec, ManifestExtras};
    let mut extras = ManifestExtras::default();
    extras.dev_dependencies.insert(
        "github.com/z-last/lib".to_string(),
        ExtraDepSpec::Simple("v1.0.0".to_string()),
    );
    extras.dev_dependencies.insert(
        "github.com/a-first/lib".to_string(),
        ExtraDepSpec::Simple("v2.0.0".to_string()),
    );
    extras.dependencies.insert(
        "github.com/m-middle/lib".to_string(),
        ExtraDepSpec::Simple("v3.0.0".to_string()),
    );
    let out = render_go_mod("github.com/example/mylib", None, "v1.0.0", Some(&extras));
    let first_idx = out.find("github.com/a-first/lib").expect("should find a-first");
    let middle_idx = out.find("github.com/m-middle/lib").expect("should find m-middle");
    let last_idx = out.find("github.com/z-last/lib").expect("should find z-last");
    assert!(
        first_idx < middle_idx && middle_idx < last_idx,
        "extras should be sorted alphabetically: {out}"
    );
}

#[test]
fn render_go_mod_extras_handles_detailed_form_with_version() {
    use crate::core::config::manifest_extras::{ExtraDepSpec, ManifestExtras};
    let mut extras = ManifestExtras::default();
    let mut table = toml::Table::new();
    table.insert("version".to_string(), toml::Value::String("v0.25.0".to_string()));
    table.insert("features".to_string(), toml::Value::String("debug".to_string()));
    extras.dev_dependencies.insert(
        "github.com/example/with-features".to_string(),
        ExtraDepSpec::Detailed(table),
    );
    let out = render_go_mod("github.com/example/mylib", None, "v1.0.0", Some(&extras));
    assert!(
        out.contains("github.com/example/with-features v0.25.0"),
        "should extract version from detailed form, got: {out}"
    );
}

#[test]
fn render_go_mod_extras_skips_entries_without_version() {
    use crate::core::config::manifest_extras::{ExtraDepSpec, ManifestExtras};
    let mut extras = ManifestExtras::default();
    let mut table = toml::Table::new();
    table.insert(
        "git".to_string(),
        toml::Value::String("https://example.com".to_string()),
    );
    extras.dev_dependencies.insert(
        "github.com/example/no-version".to_string(),
        ExtraDepSpec::Detailed(table),
    );
    let out = render_go_mod("github.com/example/mylib", None, "v1.0.0", Some(&extras));
    assert!(
        !out.contains("github.com/example/no-version"),
        "should skip extras without version field, got: {out}"
    );
}

#[test]
fn render_go_mod_extras_idempotent() {
    use crate::core::config::manifest_extras::{ExtraDepSpec, ManifestExtras};
    let mut extras = ManifestExtras::default();
    extras.dev_dependencies.insert(
        "github.com/tree-sitter/go-tree-sitter".to_string(),
        ExtraDepSpec::Simple("v0.24.0".to_string()),
    );
    let first = render_go_mod("github.com/example/mylib", None, "v1.0.0", Some(&extras));
    let second = render_go_mod("github.com/example/mylib", None, "v1.0.0", Some(&extras));
    assert_eq!(first, second, "re-rendering with same extras should be stable");
}