Fix test failures due to changes in .NET Core and the exclusion of 'Certificate' provider in UNIX PS

test/powershell/Language/Parser/RedirectionOperator.Tests.ps1

@@ -47,6 +47,14 @@ Describe "Redirection operator now supports encoding changes" -Tags "CI" {
     $availableEncodings = (get-command out-file).Parameters["Encoding"].Attributes.ValidValues
 
     foreach($encoding in $availableEncodings) {
+        if ($encoding -eq "default") {
+            # [System.Text.Encoding]::Default is exposed by 'System.Private.CoreLib.dll' at
+            # runtime via reflection. However,it isn't exposed in the reference contract of
+            # 'System.Text.Encoding', and therefore we cannot use 'Encoding.Default' in our
+            # code. So we need to skip this encoding in the test.
+            continue
+        }
+
         # some of the encodings accepted by out-file aren't real,
         # and out-file has its own translation, so we'll
         # not do that logic here, but simply ignore those encodings

test/powershell/Modules/Microsoft.PowerShell.Management/Get-PSDrive.Tests.ps1

@@ -23,17 +23,18 @@ Describe "Get-PSDrive" -Tags "CI" {
     }
 
     It "Should return drive info"{
-	(Get-PSDrive Env).Name        | Should Be Env
-	(Get-PSDrive Cert).Root       | Should Be \
+        (Get-PSDrive Env).Name        | Should Be Env
+        (Get-PSDrive Alias).Name      | Should Be Alias
 
-	if ($IsWindows)
-	{
-	    (Get-PSDrive C).Provider.Name | Should Be FileSystem
-	}
-	else
-	{
-	    (Get-PSDrive /).Provider.Name | Should Be FileSystem
-	}
+        if ($IsWindows)
+        {
+            (Get-PSDrive Cert).Root       | Should Be \
+            (Get-PSDrive C).Provider.Name | Should Be FileSystem
+        }
+        else
+        {
+            (Get-PSDrive /).Provider.Name | Should Be FileSystem
+        }
     }
 
     It "Should be able to access a drive using the PSProvider switch" {

test/powershell/Modules/Microsoft.PowerShell.Utility/alias.tests.ps1

@@ -29,7 +29,7 @@
             $testCases += [TestData]::new("PS1", $ps1File, [NullString]::Value)
             $testCases += [TestData]::new("Empty string", "", "ParameterArgumentValidationErrorEmptyStringNotAllowed,Microsoft.PowerShell.Commands.ExportAliasCommand")
             $testCases += [TestData]::new("Null", [NullString]::Value, "ParameterArgumentValidationErrorNullNotAllowed,Microsoft.PowerShell.Commands.ExportAliasCommand")
-            $testCases += [TestData]::new("Non filesystem provider", 'cert:\alias.ps1', "ReadWriteFileNotFileSystemProvider,Microsoft.PowerShell.Commands.ExportAliasCommand")
+            $testCases += [TestData]::new("Non filesystem provider", 'env:\alias.ps1', "ReadWriteFileNotFileSystemProvider,Microsoft.PowerShell.Commands.ExportAliasCommand")
         }
     
         $testCases | % {
@@ -116,7 +116,7 @@
             $testCases = @()
             $testCases += [TestData]::new("Empty string", "", "ParameterArgumentValidationErrorEmptyStringNotAllowed,Microsoft.PowerShell.Commands.ImportAliasCommand")
             $testCases += [TestData]::new("Null", [NullString]::Value, "ParameterArgumentValidationErrorNullNotAllowed,Microsoft.PowerShell.Commands.ImportAliasCommand")
-            $testCases += [TestData]::new("Non filesystem provider", 'cert:\alias.ps1', "NotSupported,Microsoft.PowerShell.Commands.ImportAliasCommand")
+            $testCases += [TestData]::new("Non filesystem provider", 'env:\alias.ps1', "NotSupported,Microsoft.PowerShell.Commands.ImportAliasCommand")
         }
     
         $testCases | % {

test/powershell/Modules/Microsoft.PowerShell.Utility/clixml.tests.ps1

@@ -44,7 +44,7 @@
             $testData = @()
             $testData += [TestData]::new("with path as Null", [NullString]::Value, $gps, "ParameterArgumentValidationErrorNullNotAllowed,Microsoft.PowerShell.Commands.ExportClixmlCommand")
             $testData += [TestData]::new("with path as Empty string", "", $gps, "ParameterArgumentValidationErrorEmptyStringNotAllowed,Microsoft.PowerShell.Commands.ExportClixmlCommand")
-            $testData += [TestData]::new("with path as non filesystem provider", "cert:\", $gps, "ReadWriteFileNotFileSystemProvider,Microsoft.PowerShell.Commands.ExportClixmlCommand")
+            $testData += [TestData]::new("with path as non filesystem provider", "env:\", $gps, "ReadWriteFileNotFileSystemProvider,Microsoft.PowerShell.Commands.ExportClixmlCommand")
         }
 
         AfterEach {
@@ -132,7 +132,7 @@
             $testData = @()
             $testData += [TestData]::new("with path as Null", [NullString]::Value, $null, "ParameterArgumentValidationErrorNullNotAllowed,Microsoft.PowerShell.Commands.ImportClixmlCommand")
             $testData += [TestData]::new("with path as Empty string", "", $null, "ParameterArgumentValidationErrorEmptyStringNotAllowed,Microsoft.PowerShell.Commands.ImportClixmlCommand")
-            $testData += [TestData]::new("with path as non filesystem provider", "cert:\", $null, "ReadWriteFileNotFileSystemProvider,Microsoft.PowerShell.Commands.ImportClixmlCommand")
+            $testData += [TestData]::new("with path as non filesystem provider", "env:\", $null, "ReadWriteFileNotFileSystemProvider,Microsoft.PowerShell.Commands.ImportClixmlCommand")
         }
 
         $testData | % {