input:
  stdin:
    codec: lines
pipeline:
  processors:
    - mapping: |
        meta foo = { "a": "hello" }
        meta bar = { "b": { "c": "hello" } }
        meta baz = [ { "a": "hello" }, { "b": { "c": "hello" } } ]
output:
  stdout:
    codec: lines

tests:
  - name: Should not fail
    input_batch:
      - content: hello
    output_batches:
      - - metadata_equals:
            foo: { "a": "hello" }
            bar: { "b": { "c": "hello" } }
            baz: [ { "a": "hello" }, { "b": { "c": "hello" } } ]