reovim-kernel 0.14.4

Core kernel mechanisms for reovim (Linux kernel/ equivalent)
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

use super::*;

use crate::api::{context::ModuleContext, version::API_VERSION};

#[test]
fn test_module_state_default() {
    let state = ModuleState::default();
    assert_eq!(state, ModuleState::Loaded);
}

#[test]
#[cfg_attr(coverage_nightly, coverage(off))]
fn test_module_state_display() {
    assert_eq!(format!("{}", ModuleState::Loaded), "loaded");
    assert_eq!(format!("{}", ModuleState::Initializing), "initializing");
    assert_eq!(format!("{}", ModuleState::Running), "running");
    assert_eq!(format!("{}", ModuleState::Unloading), "unloading");
    assert_eq!(format!("{}", ModuleState::Failed("error".into())), "failed: error");
}

#[test]
fn test_module_state_valid_transitions() {
    // Loaded -> Initializing
    assert!(ModuleState::Loaded.can_transition_to(&ModuleState::Initializing));

    // Initializing -> Running
    assert!(ModuleState::Initializing.can_transition_to(&ModuleState::Running));

    // Running -> Unloading
    assert!(ModuleState::Running.can_transition_to(&ModuleState::Unloading));

    // Any state -> Failed
    assert!(ModuleState::Loaded.can_transition_to(&ModuleState::Failed("err".into())));
    assert!(ModuleState::Initializing.can_transition_to(&ModuleState::Failed("err".into())));
    assert!(ModuleState::Running.can_transition_to(&ModuleState::Failed("err".into())));
    assert!(ModuleState::Unloading.can_transition_to(&ModuleState::Failed("err".into())));
}

#[test]
fn test_module_state_invalid_transitions() {
    // Can't skip states
    assert!(!ModuleState::Loaded.can_transition_to(&ModuleState::Running));
    assert!(!ModuleState::Loaded.can_transition_to(&ModuleState::Unloading));

    // Can't go backwards
    assert!(!ModuleState::Running.can_transition_to(&ModuleState::Initializing));
    assert!(!ModuleState::Running.can_transition_to(&ModuleState::Loaded));
    assert!(!ModuleState::Initializing.can_transition_to(&ModuleState::Loaded));
}

#[test]
fn test_module_state_edge_cases() {
    // Test Failed state transitions
    let failed = ModuleState::Failed("error".into());

    // Failed can only transition to Failed (another error)
    assert!(!failed.can_transition_to(&ModuleState::Loaded));
    assert!(!failed.can_transition_to(&ModuleState::Initializing));
    assert!(!failed.can_transition_to(&ModuleState::Running));
    assert!(!failed.can_transition_to(&ModuleState::Unloading));
    assert!(failed.can_transition_to(&ModuleState::Failed("new error".into())));

    // Test Unloading state transitions
    let unloading = ModuleState::Unloading;

    // Unloading should only allow transition to Failed
    assert!(!unloading.can_transition_to(&ModuleState::Loaded));
    assert!(!unloading.can_transition_to(&ModuleState::Initializing));
    assert!(!unloading.can_transition_to(&ModuleState::Running));
    assert!(unloading.can_transition_to(&ModuleState::Failed("error".into())));
}

#[test]
fn test_module_info_fields() {
    let info = ModuleInfo {
        id: ModuleId::new("lang-rust"),
        name: "Rust Language Support",
        version: Version::new(1, 2, 3),
        api_version: API_VERSION,
        description: "Rust syntax and LSP",
        authors: &["Author 1", "Author 2"],
        license: "MIT",
    };

    assert_eq!(info.id.as_str(), "lang-rust");
    assert_eq!(info.name, "Rust Language Support");
    assert_eq!(info.version.major, 1);
    assert_eq!(info.version.minor, 2);
    assert_eq!(info.version.patch, 3);
    assert_eq!(info.description, "Rust syntax and LSP");
    assert_eq!(info.authors.len(), 2);
    assert_eq!(info.license, "MIT");
}

#[test]
fn test_module_info_from_module() {
    // Create a test module implementation
    struct TestModule;

    #[cfg_attr(coverage_nightly, coverage(off))]
    impl Module for TestModule {
        fn id(&self) -> ModuleId {
            ModuleId::new("test-module")
        }
        fn name(&self) -> &'static str {
            "Test Module"
        }
        fn version(&self) -> Version {
            Version::new(2, 1, 0)
        }
        fn api_version(&self) -> Version {
            Version::new(1, 0, 0)
        }
        fn init(&mut self, _ctx: &ModuleContext) -> ProbeResult {
            ProbeResult::Success
        }
        fn exit(&mut self) -> Result<(), ModuleError> {
            Ok(())
        }
    }

    let module = TestModule;
    let info = ModuleInfo::from_module(&module);

    assert_eq!(info.id, ModuleId::new("test-module"));
    assert_eq!(info.name, "Test Module");
    assert_eq!(info.version, Version::new(2, 1, 0));
    assert_eq!(info.api_version, Version::new(1, 0, 0));
}