Column contains string

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Definition

Let A be a column in a dataset containing strings. Let B be a column in a dataset containing lists of strings.

The column contains string test asserts that the list of strings in B contains the string in A on a per-row basis.

For example:

Since “d” is not in the list [“a”, “b”, “c”], the test fails.

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Taxonomy

• Category: Integrity.
• Task types: LLM, tabular classification, tabular regression, text classification.
• Availability: development and monitoring.

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Why it matters

• In particular for RAG LLM projects, the context retriever will return a list of the top K contexts. The column contains string test can be used to ensure that the context retriever returns at least one of the correct contexts.

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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:

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Related

• Great Expectations test.