Git Pull of DSCResource.Tests is Called 36 Times During a Full Test Job

[mhendric]

Details of the scenario you tried and the problem that is occurring

A refresh of the DSCResource.Tests module is currently performed 36 times if you execute all Unit and Integration tests. This makes it far more likely to encounter #505 . This should be fixed to only update DSCResource.Tests a maximum of one time per job.

Verbose logs showing the problem

All scripts calling this function:

Tests\Integration\MSFT_xArchive.EndToEnd.Tests.ps1:16:        $script:testEnvironment = Enter-DscResourceTestEnvironment `
Tests\Integration\MSFT_xArchive.Integration.Tests.ps1:20:        $script:testEnvironment = Enter-DscResourceTestEnvironment `
Tests\Integration\MSFT_xEnvironmentResource.EndToEnd.Tests.ps1:19:$script:testEnvironment = Enter-DscResourceTestEnvironment `
Tests\Integration\MSFT_xEnvironmentResource.Integration.Tests.ps1:16:$script:testEnvironment = Enter-DscResourceTestEnvironment `
Tests\Integration\MSFT_xGroupResource.Integration.Tests.ps1:17:$script:testEnvironment = Enter-DscResourceTestEnvironment `
Tests\Integration\MSFT_xMsiPackage.EndToEnd.Tests.ps1:22:        $script:testEnvironment = Enter-DscResourceTestEnvironment `
Tests\Integration\MSFT_xMsiPackage.Integration.Tests.ps1:13:$script:testEnvironment = Enter-DscResourceTestEnvironment `
Tests\Integration\MSFT_xPackageResource.Integration.Tests.ps1:8:$script:testEnvironment = Enter-DscResourceTestEnvironment `
Tests\Integration\MSFT_xRegistryResource.EndToEnd.Tests.ps1:21:$script:testEnvironment = Enter-DscResourceTestEnvironment `
Tests\Integration\MSFT_xRegistryResource.Integration.Tests.ps1:21:$script:testEnvironment = Enter-DscResourceTestEnvironment `
Tests\Integration\MSFT_xScriptResource.Integration.Tests.ps1:14:$script:testEnvironment = Enter-DscResourceTestEnvironment `
Tests\Integration\MSFT_xServiceResource.Integration.Tests.ps1:23:$script:testEnvironment = Enter-DscResourceTestEnvironment `
Tests\Integration\MSFT_xUserResource.Integration.Tests.ps1:19:$script:testEnvironment = Enter-DscResourceTestEnvironment `
Tests\Integration\MSFT_xWindowsFeature.Integration.Tests.ps1:20:$script:testEnvironment = Enter-DscResourceTestEnvironment `
Tests\Integration\MSFT_xWindowsOptionalFeature.Integration.Tests.ps1:8:$script:testEnvironment = Enter-DscResourceTestEnvironment `
Tests\Integration\MSFT_xWindowsPackageCab.Integration.Tests.ps1:8:$script:testEnvironment = Enter-DscResourceTestEnvironment `
Tests\Integration\MSFT_xWindowsProcess.Integration.Tests.ps1:21:$script:testEnvironment = Enter-DscResourceTestEnvironment `
Tests\Integration\xFileUpload.Integration.Tests.ps1:14:$script:testEnvironment = Enter-DscResourceTestEnvironment `
Tests\Integration\xGroupSet.Integration.Tests.ps1:17:$script:testEnvironment = Enter-DscResourceTestEnvironment `
Tests\Integration\xProcessSet.Integration.Tests.ps1:14:$script:testEnvironment = Enter-DscResourceTestEnvironment `
Tests\Integration\xServiceSet.Integration.Tests.ps1:23:$script:testEnvironment = Enter-DscResourceTestEnvironment `
Tests\Integration\xWindowsFeatureSet.Integration.Tests.ps1:14:$script:testEnvironment = Enter-DscResourceTestEnvironment `
Tests\Integration\xWindowsOptionalFeatureSet.Integration.Tests.ps1:14:$script:testEnvironment = Enter-DscResourceTestEnvironment `
Tests\Unit\MSFT_xArchive.Tests.ps1:20:        $script:testEnvironment = Enter-DscResourceTestEnvironment `
Tests\Unit\MSFT_xEnvironmentResource.Tests.ps1:18:$script:testEnvironment = Enter-DscResourceTestEnvironment `
Tests\Unit\MSFT_xGroupResource.Tests.ps1:17:$script:testEnvironment = Enter-DscResourceTestEnvironment `
Tests\Unit\MSFT_xMsiPackage.Tests.ps1:20:        $script:testEnvironment = Enter-DscResourceTestEnvironment `
Tests\Unit\MSFT_xPackageResource.Tests.ps1:10:$script:testEnvironment = Enter-DscResourceTestEnvironment `
Tests\Unit\MSFT_xRegistryResource.Tests.ps1:14:$script:testEnvironment = Enter-DscResourceTestEnvironment `
Tests\Unit\MSFT_xScriptResource.Tests.ps1:14:$script:testEnvironment = Enter-DscResourceTestEnvironment `
Tests\Unit\MSFT_xServiceResource.Tests.ps1:18:$script:testEnvironment = Enter-DscResourceTestEnvironment `
Tests\Unit\MSFT_xUserResource.Tests.ps1:14:$script:testEnvironment = Enter-DscResourceTestEnvironment `
Tests\Unit\MSFT_xWindowsFeature.Tests.ps1:14:$script:testEnvironment = Enter-DscResourceTestEnvironment `
Tests\Unit\MSFT_xWindowsOptionalFeature.Tests.ps1:8:$script:testEnvironment = Enter-DscResourceTestEnvironment `
Tests\Unit\MSFT_xWindowsPackageCab.Tests.ps1:8:$script:testEnvironment = Enter-DscResourceTestEnvironment `
Tests\Unit\MSFT_xWindowsProcess.Tests.ps1:15:$script:testEnvironment = Enter-DscResourceTestEnvironment `

Suggested solution to the issue

See #516

Version of the DSC module that was used ('dev' if using current dev branch)

dev