Track Process and Flow Test Coverage
Where: This change applies to Lightning Experience and Salesforce Classic in Essentials, Professional, Enterprise, Performance, Unlimited, and Developer editions.
Why: When you deploy an active process or flow, Salesforce runs your org’s Apex tests and confirms that enough of your processes and flows have test coverage.
How: FlowTestCoverage represents test coverage for a flow by an Apex test method. FlowElementTestCoverage records are created when an Apex test method executes a flow element.
To calculate the overall test coverage for a flow version, query the FlowTestCoverage object. The FlowElementTestCoverage object is not used to calculate test coverage.
SELECT Id, ApexTestClassId, TestMethodName, FlowVersionId, NumElementsCovered, NumElementsNotCovered FROM FlowTestCoverage WHERE flowversionid='301RM0000004GiK'
To get information about the elements executed by a test run, query the FlowElementTestCoverage object. For example, this query returns the number of unique elements that have been executed.
SELECT count_distinct(ElementName) FROM FlowElementTestCoverage WHERE FlowVersionId='301RM0000004GiK'