icydb 0.248.1

IcyDB — A schema-first typed query engine and persistence runtime for Internet Computer canisters
Documentation 
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use ic_memory::{
    MemoryManagerRangeMode, RuntimeOpenError, committed_allocations,
    open_default_memory_manager_memory, register_static_memory_manager_declaration,
    register_static_memory_manager_range,
};
use icydb::db::ensure_default_memory_manager;

const AUTHORITY: &str = "icydb.ensure-default-memory-manager-test";
const MEMORY_ID: u8 = 100;
const STABLE_KEY: &str = "icydb.ensure_default_memory_manager_test.data.v1";

#[test]
fn ensure_bootstraps_once_then_reuses_committed_allocations() {
    assert!(matches!(
        committed_allocations(),
        Err(RuntimeOpenError::NotBootstrapped)
    ));
    register_static_memory_manager_range(
        MEMORY_ID,
        MEMORY_ID,
        AUTHORITY,
        MemoryManagerRangeMode::Reserved,
        None,
    )
    .expect("test authority range should register");
    register_static_memory_manager_declaration(MEMORY_ID, AUTHORITY, "Data", STABLE_KEY)
        .expect("test allocation should register");

    ensure_default_memory_manager(AUTHORITY).expect("cold ensure should bootstrap the runtime");
    let generation = committed_allocations()
        .expect("cold ensure should publish committed allocations")
        .generation();

    ensure_default_memory_manager(AUTHORITY).expect("repeated ensure should adopt the runtime");
    assert_eq!(
        committed_allocations()
            .expect("repeated ensure should preserve committed allocations")
            .generation(),
        generation,
    );
    open_default_memory_manager_memory(STABLE_KEY, MEMORY_ID)
        .expect("the ensured allocation should open");
}