rulemorph 0.3.4

YAML-based declarative data transformation engine for CSV/JSON to JSON
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

use crate::{TransformErrorKind, run_err};

#[test]
fn v2_collection_representative_errors_keep_paths() {
    let arity_yaml = r#"
version: 2
input:
  format: json
mappings:
  - target: "out"
    expr:
      - "@input.items"
      - filter: []
"#;
    let err = run_err(arity_yaml, r#"[{"items":[]}]"#);
    assert_eq!(err.kind, TransformErrorKind::ExprError);
    assert_eq!(err.path.as_deref(), Some("mappings[0].expr[1]"));
    assert_eq!(err.message, "filter requires at least 1 argument(s), got 0");

    let non_array_yaml = r#"
version: 2
input:
  format: json
mappings:
  - target: "out"
    expr:
      - "@input.items"
      - filter: ["@item.active"]
"#;
    let err = run_err(non_array_yaml, r#"[{"items":"not an array"}]"#);
    assert_eq!(err.kind, TransformErrorKind::ExprError);
    assert_eq!(err.path.as_deref(), Some("mappings[0].expr[1]"));
    assert_eq!(err.message, "expr arg must be an array");

    let predicate_yaml = r#"
version: 2
input:
  format: json
mappings:
  - target: "out"
    expr:
      - "@input.items"
      - filter: ["@item.name"]
"#;
    let err = run_err(predicate_yaml, r#"[{"items":[{"name":"Alice"}]}]"#);
    assert_eq!(err.kind, TransformErrorKind::ExprError);
    assert_eq!(err.path.as_deref(), Some("mappings[0].expr[1].args[0]"));
    assert_eq!(err.message, "value must be a boolean");
}