In accordance with embodiments disclosed herein, there are provided systems, devices, and methods for testing methods in a multi-tenant database environment, including, for example, hosting a plurality of customer codebases within a host organization, where each of the plurality of customer codebases includes a plurality of operational statements and one or more test methods. Such a method further includes generating a first test result set by executing the one or more test methods associated with each of the plurality of customer codebases against a production release codebase of the host organization; generating a second test result set by executing the one or more test methods associated with each of the plurality of customer codebases against a pre-release codebase of the host organization; and identifying errors associated with the pre-release codebase based on a comparison of the first test result set and the second test result set.