k9iser 0.1.0

Wrap configs and deployments into self-validating K9 contracts
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
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255

// SPDX-License-Identifier: PMPL-1.0-or-later
// Copyright (c) 2026 Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
//
// Integration tests for k9iser — exercises manifest loading, validation,
// config parsing, contract generation, and rule checking end-to-end.

use k9iser::abi::{parse_must_rule, ConfigFormat, SafetyTier};
use k9iser::codegen::contract::build_k9_contract;
use k9iser::codegen::parser::{parse_config_string, ParsedEntry, ValueType};
use k9iser::codegen::validator::validate_config;
use k9iser::manifest;
use tempfile::TempDir;

/// Test that `init_manifest` creates a valid k9iser.toml file with the
/// expected K9-specific schema (project, configs, validation sections).
#[test]
fn test_init_creates_manifest() {
    let dir = TempDir::new().unwrap();
    let path = dir.path().to_str().unwrap();

    manifest::init_manifest(path).unwrap();

    let manifest_path = dir.path().join("k9iser.toml");
    assert!(manifest_path.exists(), "k9iser.toml should be created");

    let content = std::fs::read_to_string(&manifest_path).unwrap();
    assert!(content.contains("[project]"), "Should have [project] section");
    assert!(content.contains("safety-tier"), "Should have safety-tier field");
    assert!(content.contains("[[configs]]"), "Should have [[configs]] section");
    assert!(content.contains("[validation]"), "Should have [validation] section");
    assert!(content.contains("must"), "Should have must pillar");
    assert!(content.contains("trust"), "Should have trust pillar");
    assert!(content.contains("dust"), "Should have dust pillar");
    assert!(content.contains("intend"), "Should have intend pillar");
}

/// Test that a valid manifest loads and validates without error, and that
/// all fields are correctly deserialised.
#[test]
fn test_load_and_validate_manifest() {
    let dir = TempDir::new().unwrap();
    let path = dir.path().to_str().unwrap();

    manifest::init_manifest(path).unwrap();

    let manifest_path = dir.path().join("k9iser.toml");
    let m = manifest::load_manifest(manifest_path.to_str().unwrap()).unwrap();

    // Validate should pass
    manifest::validate(&m).unwrap();

    // Check deserialized fields
    assert_eq!(m.project.name, "my-config-project");
    assert_eq!(m.project.safety_tier, "kennel");
    assert_eq!(m.configs.len(), 1);
    assert_eq!(m.configs[0].name, "app-config");
    assert_eq!(m.configs[0].format, "toml");
    assert!(!m.configs[0].must.is_empty());
    assert!(m.validation.strict);
}

/// Test that a manifest with an empty project name is rejected.
#[test]
fn test_validate_rejects_empty_name() {
    let dir = TempDir::new().unwrap();
    let manifest_content = r#"
[project]
name = ""
safety-tier = "kennel"

[validation]
strict = true
"#;
    let path = dir.path().join("k9iser.toml");
    std::fs::write(&path, manifest_content).unwrap();

    let m = manifest::load_manifest(path.to_str().unwrap()).unwrap();
    let result = manifest::validate(&m);
    assert!(result.is_err(), "Empty name should be rejected");
    assert!(
        result.unwrap_err().to_string().contains("name"),
        "Error should mention name"
    );
}

/// Test that generate produces .k9 contract files for each config entry.
#[test]
fn test_generate_produces_k9_contracts() {
    let dir = TempDir::new().unwrap();

    // Create a config file
    let config_dir = dir.path().join("config");
    std::fs::create_dir_all(&config_dir).unwrap();
    std::fs::write(
        config_dir.join("app.toml"),
        "[server]\nport = 8080\nhost = \"localhost\"\n",
    )
    .unwrap();

    // Create manifest
    let manifest_content = r#"
[project]
name = "test-project"
safety-tier = "kennel"

[[configs]]
name = "app-config"
source = "config/app.toml"
format = "toml"
must = ["port > 0", "port < 65536", "host != ''"]
trust = ["signed-by: ci-pipeline"]
dust = ["remove: deprecated-keys"]
intend = ["production-ready"]

[validation]
strict = true
"#;
    let manifest_path = dir.path().join("k9iser.toml");
    std::fs::write(&manifest_path, manifest_content).unwrap();

    let m = manifest::load_manifest(manifest_path.to_str().unwrap()).unwrap();

    let output_dir = dir.path().join("generated");
    // Change to temp dir so relative source paths resolve
    let original_dir = std::env::current_dir().unwrap();
    std::env::set_current_dir(dir.path()).unwrap();

    let result = k9iser::codegen::generate_all(&m, output_dir.to_str().unwrap());
    std::env::set_current_dir(&original_dir).unwrap();

    assert!(result.is_ok(), "Generation should succeed: {:?}", result);

    let contract_file = output_dir.join("app-config.k9");
    assert!(contract_file.exists(), ".k9 contract file should exist");

    let content = std::fs::read_to_string(&contract_file).unwrap();
    assert!(content.contains("[must]"));
    assert!(content.contains("port : int"));
    assert!(content.contains("[trust]"));
    assert!(content.contains("[dust]"));
    assert!(content.contains("[intend]"));
}

/// Test that the validator correctly validates configs against contracts.
#[test]
fn test_generate_produces_validator() {
    let entries = vec![
        ParsedEntry {
            key: "server.port".into(),
            value: "8080".into(),
            value_type: ValueType::Int,
        },
        ParsedEntry {
            key: "server.host".into(),
            value: "localhost".into(),
            value_type: ValueType::String,
        },
    ];

    let contract = build_k9_contract(
        "test",
        "config/test.toml",
        ConfigFormat::Toml,
        SafetyTier::Kennel,
        &[
            "port > 0".into(),
            "port < 65536".into(),
            "host != ''".into(),
        ],
        &["signed-by: ci".into()],
        &["remove: old-keys".into()],
        &["staging".into()],
    );

    let result = validate_config(&entries, &contract);
    assert!(result.is_pass(), "Valid config should pass: {}", result);

    // Now test with an invalid port
    let bad_entries = vec![ParsedEntry {
        key: "port".into(),
        value: "-5".into(),
        value_type: ValueType::Int,
    }];

    let bad_result = validate_config(&bad_entries, &contract);
    assert!(
        !bad_result.is_pass(),
        "Invalid config should fail validation"
    );
}

/// Test must-rule parsing covers all supported operators.
#[test]
fn test_must_rule_parsing() {
    let cases = vec![
        ("port > 0", "port", ">", "0"),
        ("port < 65536", "port", "<", "65536"),
        ("count >= 1", "count", ">=", "1"),
        ("timeout <= 30", "timeout", "<=", "30"),
        ("mode == 'production'", "mode", "==", "'production'"),
        ("host != ''", "host", "!=", "''"),
    ];

    for (input, expected_key, expected_op, expected_val) in cases {
        let rule = parse_must_rule(input);
        assert!(rule.is_some(), "Should parse: {}", input);
        let rule = rule.unwrap();
        assert_eq!(rule.key, expected_key, "Key mismatch for: {}", input);
        assert_eq!(rule.operator, expected_op, "Operator mismatch for: {}", input);
        assert_eq!(rule.value, expected_val, "Value mismatch for: {}", input);
    }
}

/// Test TOML config parsing extracts correct key-value pairs with types.
#[test]
fn test_toml_config_parsing() {
    let content = r#"
[server]
port = 8080
host = "localhost"
debug = false
weight = 1.5

[database]
url = "postgres://localhost/mydb"
pool-size = 10
"#;

    let entries = parse_config_string(content, ConfigFormat::Toml).unwrap();

    // Check server.port
    let port = entries.iter().find(|e| e.key == "server.port").unwrap();
    assert_eq!(port.value, "8080");
    assert_eq!(port.value_type, ValueType::Int);

    // Check server.host
    let host = entries.iter().find(|e| e.key == "server.host").unwrap();
    assert_eq!(host.value, "localhost");
    assert_eq!(host.value_type, ValueType::String);

    // Check server.debug
    let debug = entries.iter().find(|e| e.key == "server.debug").unwrap();
    assert_eq!(debug.value, "false");
    assert_eq!(debug.value_type, ValueType::Bool);

    // Check server.weight
    let weight = entries.iter().find(|e| e.key == "server.weight").unwrap();
    assert_eq!(weight.value, "1.5");
    assert_eq!(weight.value_type, ValueType::Float);

    // Check database.pool-size
    let pool = entries.iter().find(|e| e.key == "database.pool-size").unwrap();
    assert_eq!(pool.value, "10");
    assert_eq!(pool.value_type, ValueType::Int);
}