Get-Help does not work in JEA sessions (#2988)

src/System.Management.Automation/help/ProviderContext.cs

@@ -110,14 +110,38 @@ namespace System.Management.Automation
             // Does the provider know how to generate MAML.
             CmdletProvider cmdletProvider = providerInfo.CreateInstance();
             ICmdletProviderSupportsHelp provider = cmdletProvider as ICmdletProviderSupportsHelp;
+
+            // Under JEA sessions the resolvedProviderPath will be null, we should allow get-help to continue.
             if (provider == null)
             {
                 return null;
             }
 
+            bool isJEASession = false;
+            if (this._executionContext.InitialSessionState != null && this._executionContext.InitialSessionState.Providers != null && providerInfo != null)
+            {
+                foreach (
+                    Runspaces.SessionStateProviderEntry sessionStateProvider in
+                        this._executionContext.InitialSessionState.Providers[providerInfo.Name])
+                {
+                    if (sessionStateProvider.Visibility == SessionStateEntryVisibility.Private)
+                    {
+                        isJEASession = true;
+                        break;
+                    }
+                }
+            }
+
             if (resolvedProviderPath == null)
             {
-                throw new ItemNotFoundException(_requestedPath, "PathNotFound", SessionStateStrings.PathNotFound);
+                if (isJEASession)
+                {
+                    return null;
+                }
+                else
+                {
+                    throw new ItemNotFoundException(_requestedPath, "PathNotFound", SessionStateStrings.PathNotFound);
+                }
             }
 
             // ok we have path and valid provider that supplys content..initialize the provider

test/powershell/engine/Remoting/RemoteSession.Basic.Tests.ps1

@@ -11,7 +11,7 @@ Describe "New-PSSession basic test" -Tag @("CI") {
 }
 
 Describe "JEA session Transcprit script test" -Tag @("Feature", 'RequireAdminOnWindows') {
-    It "Configuration name should be in the transcript header" {
+    It "Configuration name should be in the transcript header" -Pending {
         [string] $RoleCapDirectory = (New-Item -Path "$TestDrive\RoleCapability" -ItemType Directory -Force).FullName
         [string] $PSSessionConfigFile = "$RoleCapDirectory\TestConfig.pssc"
         [string] $transScriptFile = "$RoleCapDirectory\*.txt"
@@ -30,5 +30,27 @@ Describe "JEA session Transcprit script test" -Tag @("Feature", 'RequireAdminOnW
             Unregister-PSSessionConfiguration -Name JEA -Force -ErrorAction SilentlyContinue
         }
     }
+    
+}
 
+
+Describe "JEA session Get-Help test" -Tag @("CI", 'RequireAdminOnWindows') {
+    It "Get-Help should work in JEA sessions" -Pending {
+        [string] $RoleCapDirectory = (New-Item -Path "$TestDrive\RoleCapability" -ItemType Directory -Force).FullName
+        [string] $PSSessionConfigFile = "$RoleCapDirectory\TestConfig.pssc"
+        try
+        {
+            New-PSSessionConfigurationFile -Path $PSSessionConfigFile -TranscriptDirectory $RoleCapDirectory -SessionType RestrictedRemoteServer
+            Register-PSSessionConfiguration -Name JEA -Path $PSSessionConfigFile -Force -ErrorAction SilentlyContinue 
+            $scriptBlock = {Enter-PSSession -ComputerName Localhost -ConfigurationName JEA; Get-Help Get-Command; Exit-PSSession}
+            $helpContent = & $scriptBlock
+            $helpContent | Should Not Be $null 
+        }
+        finally
+        {
+            Unregister-PSSessionConfiguration -Name JEA -Force -ErrorAction SilentlyContinue
+            Remove-Item $RoleCapDirectory -Recurse -Force -ErrorAction SilentlyContinue
+        }
+    }
+    
 }