PowerShell-PowerShell/docs/testing-guidelines/CodeCoverageAnalysis.md

Code coverage analysis for commit de5f69c

Code coverage runs are enabled on daily Windows builds for PowerShell Core 6. The results of the latest build are available at: CodeCov.io

The goal of this analysis is to find the hot spots of missing coverage. The metrics used for selection of these hot spots were: # missing lines and likelihood of code path usage.

Coverage Status

The following table shows the status for the above commit, dated 2018-11-28

Assembly	Hit %
Microsoft.Management.Infrastructure.CimCmdlets	48.18%
Microsoft.PowerShell.Commands.Diagnostics	47.58%
Microsoft.PowerShell.Commands.Management	61.06%
Microsoft.PowerShell.Commands.Utility	70.76%
Microsoft.PowerShell.ConsoleHost	46.39%
Microsoft.PowerShell.CoreCLR.Eventing	37.84%
Microsoft.PowerShell.MarkdownRender	70.68%
Microsoft.PowerShell.Security	49.36%
Microsoft.WSMan.Management	62.36%
System.Management.Automation	63.35%
Microsoft.WSMan.Runtime/WSManSessionOption.cs	100.00%
powershell/Program.cs	100.00%

Hot Spots with missing coverage

Microsoft.PowerShell.Commands.Management

• Add tests for *-Item cmdlets. Especially for literal paths and error cases. #4148
• Lots of resource strings not covered. Will probably get covered when coverage is added for error cases. #4148

Microsoft.PowerShell.Commands.Utility

• Add tests for Debug-Runspace #4153

Microsoft.PowerShell.ConsoleHost

• Various options, DebugHandler and hosting modes like server, namedpipe etc. #4155

Microsoft.PowerShell.CoreCLR.Eventing

• Add tests for ETW events. #4156

Microsoft.PowerShell.Security

• Add tests for *-Acl cmdlets. #4157
• Add tests for *-AuthenticodeSignature cmdlets. #4157
• Add coverage to various utility methods under src/Microsoft.PowerShell.Security/security/Utils.cs #4157

Microsoft.WSMan.Management

• Add tests for WSMan provider #4158
• Add tests for WSMan cmdlets #4158
• Add tests for CredSSP #4158

System.Management.Automation

CoreCLR

• Lots of non-windows code can be ifdef'ed out. #3565

Engine

• Add tests for Tab Completion of various types of input. #4160
• Add tests for debugging PS Jobs. #4153
• Remove Snapin code from CommandDiscovery. #4118
• Add tests SessionStateItem, SessionStateContainer error cases, dynamic parameters. Coverage possibly added by *-Item, *-ChildItem error case tests. #4148
• Add more tests using PSCredential #4165

Remoting

• Can PSProxyJobs be removed as it is for Workflows?
• Add more tests for PS Jobs. #4166
• Add more tests using -ThrottleLimit #4166
• Add tests for Register-PSSessionConfiguration #4166
• Add tests for Connect/Disconnect session #4166
• Add more tests for Start-Job's various options #4166

Security

• Add more tests under various ExecutionPolicy modes. #4168

Utils

• Add more error case test to improve coverage of src/System.Management.Automation/utils #4169

Providers

FileSystemProvider

• Add tests for Mapped Network Drive #4148
• Add tests for *-Item alternate stream #4148
• Add tests for Get-ChildItem -path "file" #4148
• Add tests for Rename-Item for a directory #4148
• Add tests for Copy-Item over remote session #4148
• Add tests for various error conditions #4148

RegistryProvider

• Add tests for *-Item #4148
• Add tests for *-Acl #4157
• Add tests for error conditions #4148

FunctionProvider

• Add *-Item tests #4148