vantadb 0.1.4

VantaDB: An embedded persistent memory and vector retrieval engine for local-first AI applications.
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

#[path = "../common/mod.rs"]
mod common;

use common::{TerminalReporter, VantaHarness};
use tempfile::tempdir;
use vantadb::executor::{ExecutionResult, Executor};
use vantadb::parser::parse_statement;
use vantadb::storage::StorageEngine;

#[test]
fn dml_mutations_certification() {
    TerminalReporter::suite_banner("DML PIPELINE & MUTATIONS CERTIFICATION", 4);
    let mut harness = VantaHarness::new("STORAGE LAYER (DML MUTATIONS)");

    harness.execute("Pipeline: INSERT -> GET Cycle", || {
        let dir = tempdir().unwrap();
        let storage = StorageEngine::open(dir.path().to_str().unwrap()).unwrap();
        let executor = Executor::new(&storage);

        let q_insert = r#"INSERT NODE#101 TYPE Usuario { nombre: "Eros", pais: "VZLA" }"#;
        let (_, stmt_insert) = parse_statement(q_insert).unwrap();

        match executor.execute_statement(stmt_insert).unwrap() {
            ExecutionResult::Write { affected_nodes, .. } => assert_eq!(affected_nodes, 1),
            _ => panic!("Expected write result"),
        }

        let node = storage.get(101).unwrap().unwrap();
        assert_eq!(node.get_field("pais").unwrap().as_str().unwrap(), "VZLA");
        TerminalReporter::success("Parse-to-Insert pipeline validated.");
    });

    harness.execute("Pipeline: UPDATE & Atomicity", || {
        let dir = tempdir().unwrap();
        let storage = StorageEngine::open(dir.path().to_str().unwrap()).unwrap();
        let executor = Executor::new(&storage);

        // Initial insert
        let q_insert = r#"INSERT NODE#101 TYPE Usuario { nombre: "Eros", pais: "VZLA" }"#;
        let (_, stmt_insert) = parse_statement(q_insert).unwrap();
        executor.execute_statement(stmt_insert).unwrap();

        let q_update = r#"UPDATE NODE#101 SET role = "Admin", pais = "US""#;
        let (_, stmt_update) = parse_statement(q_update).unwrap();
        executor.execute_statement(stmt_update).unwrap();

        let node = storage.get(101).unwrap().unwrap();
        assert_eq!(node.get_field("role").unwrap().as_str().unwrap(), "Admin");
        assert_eq!(node.get_field("pais").unwrap().as_str().unwrap(), "US");
        TerminalReporter::success("Partial node updates committed successfully.");
    });

    harness.execute("Pipeline: RELATE & Topology Integrity", || {
        let dir = tempdir().unwrap();
        let storage = StorageEngine::open(dir.path().to_str().unwrap()).unwrap();
        let executor = Executor::new(&storage);

        let q_i1 = r#"INSERT NODE#101 TYPE Usuario { nombre: "Eros" }"#;
        let q_i2 = r#"INSERT NODE#5 TYPE Tarea { nombre: "VantaDB" }"#;
        let (_, stmt_i1) = parse_statement(q_i1).unwrap();
        executor.execute_statement(stmt_i1).unwrap();

        let (_, stmt_i2) = parse_statement(q_i2).unwrap();
        executor.execute_statement(stmt_i2).unwrap();

        let q_relate = r#"RELATE NODE#101 --"creo"--> NODE#5 WEIGHT 1.0"#;
        let (_, stmt_relate) = parse_statement(q_relate).unwrap();
        executor.execute_statement(stmt_relate).unwrap();

        let node = storage.get(101).unwrap().unwrap();
        assert_eq!(node.edges.len(), 1);
        assert_eq!(node.edges[0].label, "creo");
        TerminalReporter::success("Directed relation established through DML.");
    });

    harness.execute("Pipeline: Physical DELETE logic", || {
        let dir = tempdir().unwrap();
        let storage = StorageEngine::open(dir.path().to_str().unwrap()).unwrap();
        let executor = Executor::new(&storage);

        let (_, stmt_ins) = parse_statement(r#"INSERT NODE#101 TYPE X {}"#).unwrap();
        executor.execute_statement(stmt_ins).unwrap();

        let (_, stmt_del) = parse_statement(r#"DELETE NODE#101"#).unwrap();
        executor.execute_statement(stmt_del).unwrap();

        assert!(storage.get(101).unwrap().is_none());
        TerminalReporter::success("Node excision complete.");
    });
}