Fix throwing on missing folders

src/Main.ps1

@@ -1027,7 +1027,7 @@ function Invoke-Pester {
             }
 
             if ((none $containers)) {
-                throw "No test files were found and no scriptblocks were provided."
+                throw "No test files were found and no scriptblocks were provided. Please ensure that you provided at least one path to a *$($PesterPreference.Run.TestExtension.Value) file, or a directory that contains such file.$(if ($null -ne $PesterPreference.Run.ExcludePath.Value -and 0 -lt @($PesterPreference.Run.ExcludePath.Value).Length) {" And that there is at least one file not excluded by ExcludeFile filter '$($PesterPreference.Run.ExcludePath.Value -join "', '")'."}) Or that you provided a ScriptBlock test container."
                 return
             }
 
@@ -1126,7 +1126,13 @@ function Invoke-Pester {
                     }
                 }
 
-                $stringWriter.ToString() | & $SafeCommands['Out-File'] $PesterPreference.CodeCoverage.OutputPath.Value -Encoding $PesterPreference.CodeCoverage.OutputEncoding.Value
+                $resolvedPath = $ExecutionContext.SessionState.Path.GetUnresolvedProviderPathFromPSPath($PesterPreference.CodeCoverage.OutputPath.Value)
+                if (-not (& $SafeCommands['Test-Path'] $resolvedPath)) {
+                    $dir = & $SafeCommands['Split-Path'] $resolvedPath
+                    $null = & $SafeCommands['New-Item'] $dir -Force -ItemType Container
+                }
+
+                $stringWriter.ToString() | & $SafeCommands['Out-File'] $resolvedPath -Encoding $PesterPreference.CodeCoverage.OutputEncoding.Value -Force
                 if ($PesterPreference.Output.Verbosity.Value -in "Detailed", "Diagnostic") {
                     & $SafeCommands["Write-Host"] -ForegroundColor Magenta "Code Coverage result processed in $($sw.ElapsedMilliseconds) ms."
                 }

src/functions/TestResults.ps1

@@ -17,6 +17,10 @@ function GetFullPath ([string]$Path) {
     $File = & $SafeCommands['Split-Path'] -Path $Path -Leaf
 
     if ( -not ([String]::IsNullOrEmpty($Folder))) {
+        if (-not (& $SafeCommands['Test-Path'] $Folder)) {
+            $null = & $SafeCommands['New-Item'] $Folder -ItemType Container -Force
+        }
+
         $FolderResolved = & $SafeCommands['Resolve-Path'] -Path $Folder
     }
     else {

tst/Pester.RSpec.Coverage.ts.ps1

@@ -72,6 +72,9 @@ i -PassThru:$PassThru {
             $bb = Invoke-Pester -Configuration $c
 
 
+            $bb | Verify-NotNull
+            $pp | Verify-NotNull
+
             Write-Host "is different?: $($bb.CodeCoverage.CommandsMissed.Count -ne $pp.CodeCoverage.CommandsMissed.Count)"
             Write-Host "is less?: $($bb.CodeCoverage.CommandsMissed.Count -lt $pp.CodeCoverage.CommandsMissed.Count)"
 
@@ -249,4 +252,41 @@ i -PassThru:$PassThru {
             Get-HitLocation $b | Verify-Location $b
         }
     }
+
+    b "Coverage result creates missing folder" {
+        t "Coverage result will create the destination folder if it is missing" {
+            # https://github.com/pester/Pester/issues/1875 point 2
+            $sb = {
+                Describe 'VSCode Output Test' {
+                    It 'Single error' {
+                        . "$PSScriptRoot/CoverageTestFile.ps1"
+                    }
+                }
+            }
+
+            $c = New-PesterConfiguration
+
+            $c.Run.Container = New-PesterContainer -ScriptBlock $sb
+            $c.Run.PassThru = $true
+
+            $c.Output.Verbosity = "Detailed"
+
+            $c.CodeCoverage.Enabled = $true
+            $c.CodeCoverage.Path = "$PSScriptRoot/CoverageTestFile.ps1"
+            $c.CodeCoverage.UseBreakpoints = $true
+            $dir = [IO.Path]::GetTempPath() + "/nonExistingDirectory" + [Guid]::NewGuid()
+            $c.CodeCoverage.OutputPath = "$dir/coverage.xml"
+
+            try {
+                $r = Invoke-Pester -Configuration $c
+            }
+            finally {
+                if (Test-Path $dir) {
+                    Remove-Item $dir -Force -Recurse
+                }
+            }
+
+            $r.Result | Verify-Equal 'Passed'
+        }
+    }
 }

tst/Pester.RSpec.Junit.TestResults.ts.ps1

@@ -420,5 +420,40 @@ i -PassThru:$PassThru {
                 }
             }
         }
+
+        t "Write JUnit report using Invoke-Pester -OutputFormat JUnitXML into a folder that does not exist" {
+            $sb = {
+                Describe "Mocked Describe" {
+                    It "Successful testcase" {
+                        $true | Should -Be $true
+                    }
+                }
+            }
+
+            try {
+                $script = Join-Path ([IO.Path]::GetTempPath()) "test$([Guid]::NewGuid()).Tests.ps1"
+                $sb | Set-Content -Path $script -Force
+
+                $dir = Join-Path ([IO.Path]::GetTempPath()) "dir$([Guid]::NewGuid())"
+
+                $xml = Join-Path $dir "TestResults.xml"
+                $r = Invoke-Pester -Show None -Path $script -OutputFormat JUnitXML -OutputFile $xml -PassThru
+
+                $xmlResult = [xml] (Get-Content -Path $xml)
+                $xmlTestCase = $xmlResult.'testsuites'.'testsuite'.'testcase'
+                $xmlTestCase.name | Verify-Equal "Mocked Describe.Successful testcase"
+                $xmlTestCase.status | Verify-Equal "Passed"
+                $xmlTestCase.time | Verify-XmlTime -Expected $r.Containers[0].Blocks[0].Tests[0].Duration
+            }
+            finally {
+                if (Test-Path $script) {
+                    Remove-Item $script -Force -ErrorAction Ignore
+                }
+
+                if (Test-Path $dir) {
+                    Remove-Item $dir -Force -ErrorAction Ignore -Recurse
+                }
+            }
+        }
     }
 }

tst/Pester.RSpec.Nunit.TestResults.ts.ps1

@@ -541,5 +541,40 @@ i -PassThru:$PassThru {
                 }
             }
         }
+
+        t "Write NUnit report using Invoke-Pester -OutputFormat NUnit2.5 into a folder that does not exist" {
+            $sb = {
+                Describe "Mocked Describe" {
+                    It "Successful testcase" {
+                        $true | Should -Be $true
+                    }
+                }
+            }
+
+            try {
+                $script = Join-Path ([IO.Path]::GetTempPath()) "test$([Guid]::NewGuid()).Tests.ps1"
+                $sb | Set-Content -Path $script -Force
+
+                $dir = Join-Path ([IO.Path]::GetTempPath()) "dir$([Guid]::NewGuid())"
+
+                $xml = Join-Path $dir "TestResults.xml"
+                $r = Invoke-Pester -Show None -Path $script -OutputFormat NUnit2.5 -OutputFile $xml -PassThru
+
+                $xmlResult = [xml] (Get-Content $xml -Raw)
+                $xmlTestCase = $xmlResult.'test-results'.'test-suite'.'results'.'test-suite'.'results'.'test-suite'.'results'.'test-case'
+                $xmlTestCase.name | Verify-Equal "Mocked Describe.Successful testcase"
+                $xmlTestCase.result | Verify-Equal "Success"
+                $xmlTestCase.time | Verify-XmlTime $r.Containers[0].Blocks[0].Tests[0].Duration
+            }
+            finally {
+                if (Test-Path $script) {
+                    Remove-Item $script -Force -ErrorAction Ignore
+                }
+
+                if (Test-Path $dir) {
+                    Remove-Item $dir -Force -ErrorAction Ignore -Recurse
+                }
+            }
+        }
     }
 }

tst/p.psm1

@@ -120,7 +120,7 @@ function t {
                 # otherwise show the assertion message and stacktrace to keep the noise
                 # on test failure low
                 if ([Exception] -ne $_.Exception.GetType()) {
-                    Write-Host "ERROR: - $Name -> $($_| Out-String) "  -ForegroundColor Black -BackgroundColor Red
+                    Write-Host "[n] ERROR: - $Name -> $($_| Out-String) "  -ForegroundColor Black -BackgroundColor Red
                     $(Get-FullStackTrace $_) -split [Environment]::NewLine | foreach {
                         Write-Host " " -NoNewline
                         Write-Host " $_ "  -NoNewline -ForegroundColor Black -BackgroundColor Red