config-forge 0.1.0

A CLI tool for converting, inspecting, and validating configuration files.
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

use assert_cmd::Command;
use predicates::prelude::*;
use tempfile::tempdir;

#[test]
fn converts_json_to_yaml_file() {
    let dir = tempdir().unwrap();
    let input = dir.path().join("input.json");
    let output = dir.path().join("output.yaml");
    std::fs::write(
        &input,
        r#"{"server":{"host":"localhost","port":8080},"debug":true}"#,
    )
    .unwrap();

    Command::cargo_bin("config-forge")
        .unwrap()
        .args([
            "convert",
            input.to_str().unwrap(),
            "-o",
            output.to_str().unwrap(),
        ])
        .assert()
        .success();

    let rendered = std::fs::read_to_string(output).unwrap();
    assert!(rendered.contains("server:"));
    assert!(rendered.contains("host: localhost"));
    assert!(rendered.contains("port: 8080"));
    assert!(rendered.contains("debug: true"));
}

#[test]
fn converts_toml_to_json_stdout() {
    let dir = tempdir().unwrap();
    let input = dir.path().join("input.toml");
    std::fs::write(&input, "[server]\nhost = \"localhost\"\nport = 8080\n").unwrap();

    Command::cargo_bin("config-forge")
        .unwrap()
        .args(["convert", input.to_str().unwrap(), "--to", "json"])
        .assert()
        .success()
        .stdout(predicate::str::contains(r#""server""#))
        .stdout(predicate::str::contains(r#""host": "localhost""#))
        .stdout(predicate::str::contains(r#""port": 8080"#));
}

#[test]
fn converts_yaml_to_toml_file() {
    let dir = tempdir().unwrap();
    let input = dir.path().join("input.yaml");
    let output = dir.path().join("output.toml");
    std::fs::write(&input, "server:\n  host: localhost\n  port: 8080\n").unwrap();

    Command::cargo_bin("config-forge")
        .unwrap()
        .args([
            "convert",
            input.to_str().unwrap(),
            "-o",
            output.to_str().unwrap(),
        ])
        .assert()
        .success();

    let rendered = std::fs::read_to_string(output).unwrap();
    assert!(rendered.contains("[server]"));
    assert!(rendered.contains("host = \"localhost\""));
    assert!(rendered.contains("port = 8080"));
}

#[test]
fn inspect_reports_detected_format_and_root() {
    let dir = tempdir().unwrap();
    let input = dir.path().join("input.yaml");
    std::fs::write(&input, "items:\n  - one\n  - two\n").unwrap();

    Command::cargo_bin("config-forge")
        .unwrap()
        .args(["inspect", input.to_str().unwrap()])
        .assert()
        .success()
        .stdout(predicate::str::contains("format: yaml"))
        .stdout(predicate::str::contains("root: object"));
}

#[test]
fn stdout_conversion_requires_to_format() {
    let dir = tempdir().unwrap();
    let input = dir.path().join("input.json");
    std::fs::write(&input, r#"{"ok":true}"#).unwrap();

    Command::cargo_bin("config-forge")
        .unwrap()
        .args(["convert", input.to_str().unwrap()])
        .assert()
        .failure()
        .stderr(predicate::str::contains(
            "--to is required when --output is not provided",
        ));
}

#[test]
fn toml_output_requires_object_root() {
    let dir = tempdir().unwrap();
    let input = dir.path().join("input.json");
    let output = dir.path().join("output.toml");
    std::fs::write(&input, r#"[1,2,3]"#).unwrap();

    Command::cargo_bin("config-forge")
        .unwrap()
        .args([
            "convert",
            input.to_str().unwrap(),
            "-o",
            output.to_str().unwrap(),
        ])
        .assert()
        .failure()
        .stderr(predicate::str::contains(
            "TOML output requires an object at the document root",
        ));
}

#[test]
fn rejects_json_unsigned_integer_over_i64_range() {
    let dir = tempdir().unwrap();
    let input = dir.path().join("input.json");
    std::fs::write(&input, r#"{"too_large":18446744073709551615}"#).unwrap();

    Command::cargo_bin("config-forge")
        .unwrap()
        .args(["convert", input.to_str().unwrap(), "--to", "yaml"])
        .assert()
        .failure()
        .stderr(predicate::str::contains(
            "JSON unsigned integer exceeds the supported i64 range",
        ));
}