rulemorph 0.3.1

YAML-based declarative data transformation engine for CSV/JSON to JSON
Documentation 
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#[test]
fn csv_duplicate_header_is_invalid_input() {
    let yaml = r#"
version: 2
input:
  format: csv
  csv:
    has_header: true
mappings:
  - target: "id"
    source: "id"
"#;
    let rule = parse_rule_file(yaml).expect("parse rule");
    let err = transform(&rule, "id,id\n1,2\n", None).expect_err("duplicate header should fail");
    assert_eq!(err.kind, TransformErrorKind::InvalidInput);
}