Elm Property-Based Testing: Ensuring Coverage of Interesting Cases

This article demonstrates how to use Test.Distribution in Elm to ensure property-based tests cover interesting cases. The author uses a queue implementation example to show how Test.reportDistribution generates distribution reports of test data and how Test.expectDistribution enforces expected distributions. This allows developers to more precisely control test coverage, preventing important test cases from being missed due to uneven data distribution. The article also mentions Fuzz.examples and Fuzz.labelExamples functions, which help developers better understand and debug test data.