forjar 1.4.0

Rust-native Infrastructure as Code — bare-metal first, BLAKE3 state, provenance tracing
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

//! FJ-1342: Derivation lifecycle execution.
//!
//! Popperian rejection criteria for:
//! - FJ-1342: plan_derivation (store hit/miss, input resolution, closure hash)
//! - FJ-1342: simulate_derivation (dry-run result)
//! - FJ-1342: execute_derivation_dag (topological execution, chained deps)
//! - FJ-1342: is_store_hit, skipped_steps
//!
//! Usage: cargo test --test falsification_derivation_exec

use forjar::core::store::derivation::{Derivation, DerivationInput};
use forjar::core::store::derivation_exec::{
    execute_derivation_dag, is_store_hit, plan_derivation, simulate_derivation, skipped_steps,
};
use std::collections::BTreeMap;
use std::path::Path;

fn test_derivation() -> Derivation {
    let mut inputs = BTreeMap::new();
    inputs.insert(
        "src".into(),
        DerivationInput::Store {
            store: "blake3:aaa111".into(),
        },
    );
    Derivation {
        inputs,
        script: "cp -r $inputs/src/* $out/".into(),
        sandbox: None,
        arch: "x86_64".into(),
        out_var: "$out".into(),
    }
}

// ============================================================================
// FJ-1342: plan_derivation
// ============================================================================

#[test]
fn derivation_plan_store_miss() {
    let deriv = test_derivation();
    let mut resolved = BTreeMap::new();
    resolved.insert("src-resource".into(), "blake3:aaa111".into());
    let plan = plan_derivation(&deriv, &resolved, &[], Path::new("/store")).unwrap();
    assert!(!plan.store_hit);
    assert!(plan.sandbox_plan.is_some());
    assert_eq!(plan.steps.len(), 10);
    assert!(plan.closure_hash.starts_with("blake3:"));
    assert_eq!(skipped_steps(&plan), 0);
    assert!(!is_store_hit(&plan));
}

#[test]
fn derivation_plan_store_hit() {
    let deriv = test_derivation();
    let resolved = BTreeMap::new();
    let plan_miss = plan_derivation(&deriv, &resolved, &[], Path::new("/store")).unwrap();
    let plan_hit = plan_derivation(
        &deriv,
        &resolved,
        std::slice::from_ref(&plan_miss.closure_hash),
        Path::new("/store"),
    )
    .unwrap();
    assert!(plan_hit.store_hit);
    assert!(plan_hit.sandbox_plan.is_none());
    assert!(is_store_hit(&plan_hit));
    assert_eq!(skipped_steps(&plan_hit), 7);
}

#[test]
fn derivation_plan_invalid_rejected() {
    let deriv = Derivation {
        inputs: BTreeMap::new(),
        script: "echo hi".into(),
        sandbox: None,
        arch: "x86_64".into(),
        out_var: "$out".into(),
    };
    let result = plan_derivation(&deriv, &BTreeMap::new(), &[], Path::new("/store"));
    assert!(result.is_err());
    assert!(result.unwrap_err().contains("at least one input"));
}

// ============================================================================
// FJ-1342: simulate_derivation
// ============================================================================

#[test]
fn simulate_derivation_deterministic() {
    let deriv = test_derivation();
    let resolved = BTreeMap::new();
    let r1 = simulate_derivation(&deriv, &resolved, &[], Path::new("/s")).unwrap();
    let r2 = simulate_derivation(&deriv, &resolved, &[], Path::new("/s")).unwrap();
    assert_eq!(r1.store_hash, r2.store_hash);
    assert_eq!(r1.closure_hash, r2.closure_hash);
}

#[test]
fn simulate_derivation_store_hit() {
    let deriv = test_derivation();
    let resolved = BTreeMap::new();
    let r1 = simulate_derivation(&deriv, &resolved, &[], Path::new("/s")).unwrap();
    let r2 = simulate_derivation(
        &deriv,
        &resolved,
        std::slice::from_ref(&r1.closure_hash),
        Path::new("/s"),
    )
    .unwrap();
    assert_eq!(r2.store_hash, r2.closure_hash);
}

// ============================================================================
// FJ-1342: execute_derivation_dag
// ============================================================================

#[test]
fn dag_single_derivation() {
    let deriv = test_derivation();
    let mut derivations = BTreeMap::new();
    derivations.insert("build".into(), deriv);
    let topo = vec!["build".into()];
    let results =
        execute_derivation_dag(&derivations, &topo, &BTreeMap::new(), &[], Path::new("/s"))
            .unwrap();
    assert_eq!(results.len(), 1);
    assert!(results.contains_key("build"));
}

#[test]
fn dag_chained_derivations() {
    let d1 = test_derivation();
    let mut d2_inputs = BTreeMap::new();
    d2_inputs.insert(
        "dep".into(),
        DerivationInput::Resource {
            resource: "step1".into(),
        },
    );
    let d2 = Derivation {
        inputs: d2_inputs,
        script: "link $inputs/dep $out/".into(),
        sandbox: None,
        arch: "x86_64".into(),
        out_var: "$out".into(),
    };
    let mut derivations = BTreeMap::new();
    derivations.insert("step1".into(), d1);
    derivations.insert("step2".into(), d2);
    let topo = vec!["step1".into(), "step2".into()];
    let results =
        execute_derivation_dag(&derivations, &topo, &BTreeMap::new(), &[], Path::new("/s"))
            .unwrap();
    assert_eq!(results.len(), 2);
}

#[test]
fn dag_missing_derivation_errors() {
    let result = execute_derivation_dag(
        &BTreeMap::new(),
        &["missing".into()],
        &BTreeMap::new(),
        &[],
        Path::new("/s"),
    );
    assert!(result.is_err());
    assert!(result.unwrap_err().contains("not found"));
}