In some examples, a method may include receiving, by a system comprising a processor, for a first invocation of a first test of a plurality of code coverage tests run at overlapping times, a first report indicating a first subset of files of application code covered by the first test. The method may include generating, by the system, a test-to-file map associating the first subset of files to the first test. The method may include receiving, by the system, a second report indicating a second subset of files of the application code covered by a second invocation of the first test. The method may include modifying, by the system, the test-to-file map to associate the second subset of files to the first test.