In this video proposes an update, "Testerata 2.0", to Kent Beck's test desiderata, a list of desirable test properties.

Kent Beck published his 12 desiderata in 2019 to help people write better tests because he observed that people were "designing tests badly". After studying about 25 lists of desirable test properties from many well-known authors, Emily concludes that Beck's list is incomplete. She suggests that Beck may not have "experienced good approval tests".

Ultimately, Emily concludes that the properties authors value in individual tests actually help achieve one or more of these four overall goals for the entire test suite.

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Continuous Delivery

Kent Beck's 12 test desiderata are incomplete and conflate properties of individual tests with properties of entire test suites. After analyzing 25 lists of desirable test properties from various authors, a new framework emerges: optimize test suites for four macro properties: speed (fast feedback), predictiveness (deployment readiness), low total cost of ownership, and support for ongoing development. Individual test properties should serve one or more of these four overarching goals.

The BEST Programmers Use Tests For Engineering Like THIS...