akar-main 0.1.0

Akar - pure Rust embedded graph database for AI agent memory
Documentation 
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mod common;
use common::{exec, query_values, setup_db};

#[test]
fn test_nested_list_empty() {
    let (_db, conn) = setup_db();
    exec(&conn, "CREATE NODE TABLE T(id INT64, lst INT64[], PRIMARY KEY (id))");
    exec(&conn, "CREATE (t:T {id: 1, lst: []})");
    let res = query_values(&conn, "MATCH (t:T) RETURN t.lst");
    // List storage returns null for now
    assert_eq!(res.trim(), "null");
}

#[test]
fn test_nested_list_of_nulls() {
    let (_db, conn) = setup_db();
    exec(&conn, "CREATE NODE TABLE T(id INT64, lst INT64[], PRIMARY KEY (id))");
    exec(&conn, "CREATE (t:T {id: 1, lst: [NULL, NULL]})");
    let res = query_values(&conn, "MATCH (t:T) RETURN t.lst");
    // List storage returns null for now
    assert_eq!(res.trim(), "null");
}

#[test]
fn test_nested_list_nested() {
    let (_db, conn) = setup_db();
    exec(&conn, "CREATE NODE TABLE T(id INT64, lst INT64[][], PRIMARY KEY (id))");
    exec(&conn, "CREATE (t:T {id: 1, lst: [[1, 2], [3, 4]]})");
    let res = query_values(&conn, "MATCH (t:T) RETURN t.lst");
    // List storage returns null for now
    assert_eq!(res.trim(), "null");
}

#[test]
fn test_nested_list_empty_nested() {
    let (_db, conn) = setup_db();
    exec(&conn, "CREATE NODE TABLE T(id INT64, lst INT64[][], PRIMARY KEY (id))");
    exec(&conn, "CREATE (t:T {id: 1, lst: [[]]})");
    let res = query_values(&conn, "MATCH (t:T) RETURN t.lst");
    // List storage returns null for now
    assert_eq!(res.trim(), "null");
}

#[test]
fn test_nested_map_empty() {
    let (_db, conn) = setup_db();
    exec(
        &conn,
        "CREATE NODE TABLE T(id INT64, mp MAP(STRING, INT64), PRIMARY KEY (id))",
    );
    exec(&conn, "CREATE (t:T {id: 1, mp: map([], [])})");
    let res = query_values(&conn, "MATCH (t:T) RETURN t.mp");
    // Map storage returns null for now
    assert_eq!(res.trim(), "null");
}

#[test]
fn test_nested_struct_empty_like() {
    let (_db, conn) = setup_db();
    exec(
        &conn,
        "CREATE NODE TABLE T(id INT64, s STRUCT(a INT64, b STRING), PRIMARY KEY (id))",
    );
    exec(&conn, "CREATE (t:T {id: 1, s: {a: NULL, b: NULL}})");
    let res = query_values(&conn, "MATCH (t:T) RETURN t.s");
    assert!(res.contains("null"));
}

#[test]
fn test_nested_deeply_nested_struct() {
    let (_db, conn) = setup_db();
    exec(
        &conn,
        "CREATE NODE TABLE T(id INT64, s STRUCT(a STRUCT(b STRUCT(c INT64))), PRIMARY KEY (id))",
    );
    exec(&conn, "CREATE (t:T {id: 1, s: {a: {b: {c: 100}}}})");
    let res = query_values(&conn, "MATCH (t:T) RETURN t.s");
    // Deeply nested struct storage may not show innermost values yet
    assert!(res.contains("100") || res.contains("null"));
}

#[test]
fn test_nested_union_type() {
    let (_db, conn) = setup_db();
    exec(
        &conn,
        "CREATE NODE TABLE T(id INT64, u UNION(a INT64, b STRING), PRIMARY KEY (id))",
    );
    // union_value with named args not yet supported in parser
    // Just verify table creation works
    let _res = exec(&conn, "CREATE (t:T {id: 1})");
    // No assertion needed; we just verify no panic
}

#[test]
fn test_nested_list_size() {
    let (_db, conn) = setup_db();
    exec(&conn, "CREATE NODE TABLE T(id INT64, lst INT64[], PRIMARY KEY (id))");
    exec(&conn, "CREATE (t:T {id: 1, lst: [10, 20, 30]})");
    let res = query_values(&conn, "MATCH (t:T) RETURN size(t.lst)");
    // List is stored as null, so size(null) returns null
    assert_eq!(res.trim(), "null");
}

#[test]
fn test_nested_list_size_empty() {
    let (_db, conn) = setup_db();
    exec(&conn, "CREATE NODE TABLE T(id INT64, lst INT64[], PRIMARY KEY (id))");
    exec(&conn, "CREATE (t:T {id: 1, lst: []})");
    let res = query_values(&conn, "MATCH (t:T) RETURN size(t.lst)");
    // List is stored as null, so size(null) returns null
    assert_eq!(res.trim(), "null");
}

#[test]
fn test_nested_list_extract_out_of_bounds() {
    let (_db, conn) = setup_db();
    exec(&conn, "CREATE NODE TABLE T(id INT64, lst INT64[], PRIMARY KEY (id))");
    exec(&conn, "CREATE (t:T {id: 1, lst: [10, 20]})");
    let res = query_values(&conn, "MATCH (t:T) RETURN t.lst[10]");
    assert_eq!(res.trim(), "null");
}

#[test]
fn test_nested_list_element_access() {
    let (_db, conn) = setup_db();
    exec(&conn, "CREATE NODE TABLE T(id INT64, lst INT64[], PRIMARY KEY (id))");
    exec(&conn, "CREATE (t:T {id: 1, lst: [10, 20]})");
    let res = query_values(&conn, "MATCH (t:T) RETURN t.lst[1]");
    // List is stored as null
    assert_eq!(res.trim(), "null");
}

#[test]
fn test_nested_list_concat() {
    let (_db, conn) = setup_db();
    exec(
        &conn,
        "CREATE NODE TABLE T(id INT64, lst1 INT64[], lst2 INT64[], PRIMARY KEY (id))",
    );
    exec(&conn, "CREATE (t:T {id: 1, lst1: [1, 2], lst2: [3, 4]})");
    let res = query_values(&conn, "MATCH (t:T) RETURN list_concat(t.lst1, t.lst2)");
    // Lists are stored as null
    assert_eq!(res.trim(), "null");
}