Function wco_joins

tests/query_test.rs:300–376

()

#[test]
fn wco_joins() {
    let data = vec![
        TxData::add(1, ":name", String("Ivan".to_string())),
        TxData::add(1, ":age", Number(15)),
        TxData::add(2, ":name", String("Petr".to_string())),
        TxData::add(2, ":age", Number(37)),
        TxData::add(3, ":name", String("Ivan".to_string())),
        TxData::add(3, ":age", Number(37)),
        TxData::add(4, ":age", Number(15)),
    ];

    run_cases(vec![
        Case {
            description: "[:find ?e :where [?e :name]]",
            plan: q(vec![0], vec![Binding::attribute(0, ":name", 1)]),
            transactions: vec![data.clone()],
            expectations: vec![vec![
                (vec![Eid(1)], 0, 1),
                (vec![Eid(2)], 0, 1),
                (vec![Eid(3)], 0, 1),
            ]],
        },
        Case {
            description: "[:find ?e ?v :where [?e :name Ivan] [?e :age ?v]]",
            plan: q(
                vec![0, 2],
                vec![
                    Binding::attribute(0, ":name", 1),
                    Binding::constant(1, String("Ivan".to_string())),
                    Binding::attribute(0, ":age", 2),
                ],
            ),
            transactions: vec![data.clone()],
            expectations: vec![vec![
                (vec![Eid(1), Number(15)], 0, 1),
                (vec![Eid(3), Number(37)], 0, 1),
            ]],
        },
        Case {
            description: "[:find ?e1 ?e2 :where [?e1 :name ?n] [?e2 :name ?n]]",
            plan: q(
                vec![0, 2],
                vec![
                    Binding::attribute(0, ":name", 1),
                    Binding::attribute(2, ":name", 1),
                ],
            ),
            transactions: vec![data.clone()],
            expectations: vec![vec![
                (vec![Eid(1), Eid(1)], 0, 1),
                (vec![Eid(2), Eid(2)], 0, 1),
                (vec![Eid(3), Eid(3)], 0, 1),
                (vec![Eid(1), Eid(3)], 0, 1),
                (vec![Eid(3), Eid(1)], 0, 1),
            ]],
        },
        {
            let (e, c, e2, a, n) = (0, 1, 2, 3, 4);