The following p4-plugin tests fail when run on my Windows machine:

• JenkinsfileTest
  • testDiffClients
  • testMultiSyncPolling
  • testMultiSyncParallelPolling
  • testBasicJenkinsfile
• PollingTest
  • testPollingMaskExcl
  • testPollingInc
  • testPollingPi
  • testPatternListCaseSensitive
  • shouldTriggerJobifChanges
  • testPatternListInvalidPattern
  • testPatternList
• WorkflowTest
  • testWorkflowEnv
• PerforceScmSourceTest
  • testStarPathClassic
  • testMultiBranchClassicWithCredentialsInFolder
  • testRootPathClassic
  • testMultiPathWithClassic
  • testMultiBranchWithClassic

After investigation I've determined that the JenkinsfileTest, PollingTest, and WorkflowTest tests are failing due to performance issus, and the PerforceScmSourceTest tests are failing due to a problem with the way the Java path object converts to Windows paths.