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Definition

The is JSON test allows you to check if a specified column contains a valid JSON.

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Taxonomy

  • Category: Integrity.
  • Task types: LLM.
  • Availability: and .

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Why it matters

  • LLMs are often prompted to generate a structured output, JSON being the most common format.
  • If the LLM doesn’t generate a valid JSON, it can break the downstream applications that rely on it.

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Test configuration examples

If you are writing a tests.json, here are a few valid configurations for the character length test:

  • JSON tests using Great expectations, such as expect_column_values_to_be_json_parseable, expect_column_values_to_match_json_schema, and expect_column_values_to_be_valid_json.

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