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flightline generate

Generate synthetic test data by analyzing your schema and creating edge-case scenarios.

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Usage

flightline generate

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What It Does

The generate command:
  1. Analyzes your schema to identify dimensions of variance
  2. Uses the Cartographer to map edge cases
  3. Generates internally-consistent test data via the Fabricator

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Example

$ flightline generate

> Analyzing LoanApp schema...
> Identified 5 Key Dimensions: Credit, Income, LoanType, Assets, DTI.
> Generating 20 edge-case scenarios...
> [OK] Created 20 synthetic records in /tests/data/

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Understanding Dimensions

Flightline identifies dimensions based on your schema. For a loan application, this might include:
  • Credit: Score ranges from minimum to maximum
  • LoanType: Different loan categories (FHA, Jumbo, Conventional)
  • Income: Various income levels including edge cases
The Cartographer combines these dimensions to create targeted scenarios that cover edge cases you might not think to test manually.

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Data Consistency

The Fabricator ensures generated data is internally consistent. For example:
  • If employment_status = "Employed", then income > 0
  • If loan_type = "FHA", the loan amount respects FHA limits
Generated data contains zero PII. It’s safe to commit to version control and use in CI/CD pipelines.

Next: Run Evaluations

Test your prompts against generated data.