ic-backup 0.3.6

Host-side snapshot backup and same-release recovery for Internet Computer canisters
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

//! Fresh identity/bound qualification; challenges remain integration-owned.

use super::*;
use crate::test_support::membership::{APP, hash, plan};

#[test]
fn derives_original_binding_and_matches_independent_request_digest() {
    let plan = plan();
    assert_eq!(
        plan.digest().hash(),
        "5385eead7d20b830b36459b1e34edfef024f319b76477d0217a370a27481017a"
    );
    let request = MembershipObservationRequest::new(
        &plan,
        7,
        hash("12"),
        MembershipBoundary::BeforeEffect,
        2,
    )
    .expect("original intent binding");
    // Independent Python SHA-256 over the documented binary fields, not this codec.
    assert_eq!(
        request.digest().hash(),
        "cf998adb6201b5b2fc398c536c73762da4cd2e48411b7d2d6aa698fb56ffa28c"
    );
    assert_eq!(
        request.binding(),
        plan.attempt_authority(7).unwrap().binding()
    );
    assert_eq!(request.inventory(), plan.inventory());
    assert_eq!(request.selected_targets(), &[APP.to_owned()]);
    assert_eq!(request.challenge(), &hash("12"));
    assert_eq!(request.boundary(), MembershipBoundary::BeforeEffect);
    assert_eq!(request.max_remote_observations(), 2);
    assert_eq!(plan.operation(7).unwrap().budget().observations(), 1);
    // A descriptive provider limit does not replace or consume journal authority.
    assert_eq!(
        plan.attempt_authority(7).unwrap().budget().observations(),
        1
    );
}

#[test]
fn separates_challenges_boundaries_operations_and_call_ceilings() {
    let plan = plan();
    let request = |sequence, challenge, boundary, limit| {
        MembershipObservationRequest::new(&plan, sequence, hash(challenge), boundary, limit)
            .expect("bounded check")
    };
    let base = request(7, "12", MembershipBoundary::BeforeEffect, 2).digest();
    for changed in [
        request(0, "12", MembershipBoundary::BeforeEffect, 2),
        request(7, "34", MembershipBoundary::BeforeEffect, 2),
        request(7, "12", MembershipBoundary::AfterEffect, 2),
        request(7, "12", MembershipBoundary::BeforeEffect, 1),
    ] {
        assert_ne!(base, changed.digest());
    }
    let alias = ArtifactChecksumRecord::from_hash(&"AB".repeat(32)).unwrap();
    assert_eq!(
        request(7, "ab", MembershipBoundary::BeforeEffect, 2).digest(),
        MembershipObservationRequest::new(&plan, 7, alias, MembershipBoundary::BeforeEffect, 2)
            .unwrap()
            .digest()
    );
    let mut value = serde_json::to_value(&plan).unwrap();
    for (pointer, replacement) in [
        ("/context/network", serde_json::json!("23".repeat(32))),
        ("/context/caller", serde_json::json!("aaaaa-aa")),
        ("/context/release", serde_json::json!("45".repeat(32))),
        (
            "/inventory/targets/0/role",
            serde_json::json!("unselected parent"),
        ),
        ("/operations/1/request", serde_json::json!("67".repeat(32))),
        ("/budget/observations", serde_json::json!(3)),
    ] {
        let old = value.pointer(pointer).unwrap().clone();
        *value.pointer_mut(pointer).unwrap() = replacement;
        let changed: OperationPlanRecord = serde_json::from_value(value.clone()).unwrap();
        assert_ne!(
            base,
            MembershipObservationRequest::new(
                &changed,
                7,
                hash("12"),
                MembershipBoundary::BeforeEffect,
                2
            )
            .unwrap()
            .digest(),
            "{pointer}"
        );
        *value.pointer_mut(pointer).unwrap() = old;
    }
}

#[test]
fn admits_zero_and_maximum_call_ceilings_and_rejects_unknown_operations() {
    let plan = plan();
    for limit in [0, MAX_MEMBERSHIP_REMOTE_OBSERVATIONS] {
        assert_eq!(
            MembershipObservationRequest::new(
                &plan,
                7,
                hash("12"),
                MembershipBoundary::BeforeEffect,
                limit
            )
            .unwrap()
            .max_remote_observations(),
            limit
        );
    }
    assert!(matches!(
        MembershipObservationRequest::new(
            &plan,
            7,
            hash("12"),
            MembershipBoundary::BeforeEffect,
            1025
        ),
        Err(MembershipRequestError::ObservationLimitTooLarge)
    ));
    assert!(matches!(
        MembershipObservationRequest::new(
            &plan,
            99,
            hash("12"),
            MembershipBoundary::BeforeEffect,
            1
        ),
        Err(MembershipRequestError::Plan(
            OperationPlanError::UnknownOperation(99)
        ))
    ));
}