Function array_length_function

nodedb/tests/executor_tests/test_array_ops.rs:238–248

()

#[test]
fn array_length_function() {
    // Test via expression evaluator directly.
    let expr = nodedb_query::expr_parse::parse_generated_expr("array_length(tags)")
        .unwrap()
        .0;
    let doc = nodedb_types::Value::from(serde_json::json!({"tags": ["a", "b", "c"]}));
    assert_eq!(expr.eval(&doc), nodedb_types::Value::Integer(3));

    let doc2 = nodedb_types::Value::from(serde_json::json!({"tags": []}));
    assert_eq!(expr.eval(&doc2), nodedb_types::Value::Integer(0));
}

#[test]
fn array_append_function() {