(#3242) Attempt default credentials for sources

Invoke-AuthedTests.ps1

@@ -0,0 +1,83 @@
+#Requires -Module @{ ModuleName = 'pester'; ModuleVersion = '5.3.1' }
+#Requires -RunAsAdministrator
+<#
+    .SYNOPSIS
+    Prepares a system to test as thought it was test kitchen...
+#>
+param(
+    # Path to place Chocolatey test related artifacts.
+    [string]
+    $TestPath = "$env:TEMP/chocolateyTests",
+
+    # Indicate to skip packaging all of the tests packages. Useful for running tests after you've performed the tests previously.
+    [switch]
+    $SkipPackaging,
+
+    # The remote repository to push packages to and to use during tests.
+    [string]
+    $RemoteRepository,
+
+    # API Key used by the remote repository for pushing packages
+    [string]
+    $ApiKey
+)
+
+if (-not (Test-Path "$TestPath/packages") -or -not $SkipPackaging) {
+    if (($null -ne $RemoteRepository) -and ($null -ne $ApiKey))
+    $null = New-Item -Path "$TestPath/packages" -ItemType Directory -Force
+    # Get and pack packages
+    $nuspecs = Get-ChildItem -Path $PSScriptRoot/src/chocolatey.tests.integration, $PSScriptRoot/tests/packages -Recurse -Include *.nuspec
+    Get-ChildItem -Path $PSScriptRoot/tests/packages -Recurse -Include *.nupkg | Copy-Item -Destination "$TestPath/packages"
+
+    foreach ($file in $nuspecs) {
+        Write-Host "Packaging $file"
+        $null = choco pack $file.FullName --out "$TestPath/packages"
+    }
+
+    Get-ChildItem -Path $TestPath/packages | ForEach-Object {
+        choco push $_.FullName -s $RemoteRepository -k $ApiKey --force --allow-unofficial
+    }
+}
+
+try {
+    Push-Location $PSScriptRoot/tests
+    $env:PSModulePath = "$PSScriptRoot/tests;$env:PSModulePath"
+
+    Import-Module $PSScriptRoot\tests\helpers\common-helpers.psm1 -Force
+    $null = Invoke-Choco source add --name hermes --source $RemoteRepository
+    Enable-ChocolateyFeature -Name allowGlobalConfirmation
+    $PesterConfiguration = [PesterConfiguration]@{
+        Run        = @{
+            PassThru = $true
+            Path     = "$PSScriptRoot/tests/chocolatey-tests"
+        }
+        TestResult = @{
+            Enabled       = $true
+            TestSuiteName = "Pester - Chocolatey"
+        }
+        Output     = @{
+            Verbosity = 'Minimal'
+        }
+        Filter     = @{
+            ExcludeTag = @(
+                'Background'
+                'Licensed'
+                'CCM'
+                'WIP'
+                'NonAdmin'
+                'Internal'
+                if (-not $env:VM_RUNNING -and -not $env:TEST_KITCHEN) {
+                    'VMOnly'
+                }
+            )
+        }
+        Should     = @{
+            ErrorAction = 'Continue'
+        }
+    }
+
+    Invoke-Pester -Configuration $PesterConfiguration
+}
+finally {
+    Pop-Location
+}

src/chocolatey/infrastructure.app/nuget/ChocolateyNugetCredentialProvider.cs

@@ -140,8 +140,16 @@ public Task<CredentialResponse> GetAsync(Uri uri, IWebProxy proxy, CredentialReq
 
             if (source == null)
             {
-                this.Log().Debug("Asking user for credentials for '{0}'".FormatWith(uri.OriginalString));
-                return Task.FromResult(new CredentialResponse(GetUserCredentials(uri, proxy, credentialType)));
+                ICredentials credential = CredentialCache.DefaultNetworkCredentials;
+
+                if (isRetry)
+                {
+                    this.Log().Debug("This is a retry attempt. Asking user for credentials for '{0}'".FormatWith(uri.OriginalString));
+                    credential = GetUserCredentials(uri, proxy, credentialType);
+
+                }
+
+                return Task.FromResult(new CredentialResponse(credential));
             }
             else
             {