Restructure of pester test layout

This restructuring moves tests to a directory name which matches the module
in which the cmdlet resides which should improve the discoverability of a
specific test.
For tests which are not about cmdlets in a module, new directories have been
created to make those tests easier to find as well

test/powershell/Host/ConsoleHost.Tests.ps1

@@ -0,0 +1,166 @@
+using namespace System.Diagnostics
+
+Describe "ConsoleHost unit tests" -Tag 'Slow' {
+
+    $powershell = Join-Path -Path $PsHome -ChildPath "powershell"
+
+    Context "CommandLine" {
+        It "simple -args" -Pending:($env:TRAVIS_OS_NAME -eq "osx") {
+            & $powershell -noprofile { $args[0] } -args "hello world" | Should Be "hello world"
+        }
+
+        It "array -args" -Pending:($env:TRAVIS_OS_NAME -eq "osx") {
+            & $powershell -noprofile { $args[0] } -args 1,(2,3) | Should Be 1
+            (& $powershell -noprofile { $args[1] } -args 1,(2,3))[1]  | Should Be 3
+        }
+        foreach ($x in "--help", "-help", "-h", "-?", "--he", "-hel", "--HELP", "-hEl") {
+            It "Accepts '$x' as a parameter for help" {
+                & $powershell -noprofile $x | ?{ $_ -match "PowerShell[.exe] -Help | -? | /?" } | Should Not BeNullOrEmpty
+            }
+        }
+
+        It "Should accept a Base64 encoded command" {
+            $commandString = "Get-Location"
+            $encodedCommand = [System.Convert]::ToBase64String([System.Text.Encoding]::Unicode.GetBytes($commandString))
+            # We don't compare to `Get-Location` directly because object and formatted output comparisons are difficult
+            $expected = & $powershell -noprofile -command $commandString
+            $actual = & $powershell -noprofile -EncodedCommand $encodedCommand
+            $actual | Should Be $expected
+        }
+
+    }
+
+    Context "Pipe to/from powershell" {
+        $p = [PSCustomObject]@{X=10;Y=20}
+
+        It "xml input" {
+            $p | & $powershell -noprofile { $input | Foreach-Object {$a = 0} { $a += $_.X + $_.Y } { $a } } | Should Be 30
+            $p | & $powershell -noprofile -inputFormat xml { $input | Foreach-Object {$a = 0} { $a += $_.X + $_.Y } { $a } } | Should Be 30
+        }
+
+        It "text input" -Pending:($env:TRAVIS_OS_NAME -eq "osx") {
+            # Join (multiple lines) and remove whitespace (we don't care about spacing) to verify we converted to string (by generating a table)
+            $p | & $powershell -noprofile -inputFormat text { -join ($input -replace "\s","") } | Should Be "XY--1020"
+        }
+
+        It "xml output" {
+            & $powershell -noprofile { [PSCustomObject]@{X=10;Y=20} } | Foreach-Object {$a = 0} { $a += $_.X + $_.Y } { $a } | Should Be 30
+            & $powershell -noprofile -outputFormat xml { [PSCustomObject]@{X=10;Y=20} } | Foreach-Object {$a = 0} { $a += $_.X + $_.Y } { $a } | Should Be 30
+        }
+
+        It "text output" -Pending:($env:TRAVIS_OS_NAME -eq "osx") {
+            # Join (multiple lines) and remove whitespace (we don't care about spacing) to verify we converted to string (by generating a table)
+            -join (& $powershell -noprofile -outputFormat text { [PSCustomObject]@{X=10;Y=20} }) -replace "\s","" | Should Be "XY--1020"
+        }
+    }
+
+    Context "Redirected standard handles" {
+        function NewProcessStartInfo([string]$CommandLine, [switch]$RedirectStdIn)
+        {
+            return [ProcessStartInfo]@{
+                FileName               = $powershell
+                Arguments              = $CommandLine
+                RedirectStandardInput  = $RedirectStdIn
+                RedirectStandardOutput = $true
+                RedirectStandardError  = $true
+                UseShellExecute        = $false
+            }
+        }
+
+        function RunPowerShell([ProcessStartInfo]$si)
+        {
+            $process = [Process]::Start($si)
+
+            return $process
+        }
+
+        function EnsureChildHasExited([Process]$process, [int]$WaitTimeInMS = 15000)
+        {
+            $process.WaitForExit($WaitTimeInMS)
+
+            if (!$process.HasExited)
+            {
+                $process.HasExited | Should Be $true
+                $process.Kill()
+            }
+        }
+
+        It "Simple redirected output" -Pending:($env:TRAVIS_OS_NAME -eq "osx") {
+            $si = NewProcessStartInfo "-noprofile 1+1"
+            $process = RunPowerShell $si
+            $process.StandardOutput.ReadToEnd() | Should Be 2
+            EnsureChildHasExited $process
+        }
+
+        $nl = [Environment]::Newline
+
+        # Redirected input is broken on Windows in .NET Core
+        It "Redirected input" -Pending:$IsWindows {
+            $si = NewProcessStartInfo "-noprofile ""`$function:prompt = { 'PS> ' }""" -RedirectStdIn
+            $process = RunPowerShell $si
+            $process.StandardInput.Write("1+1`n")
+            $process.StandardOutput.ReadLine() | Should Be "PS> 1+1"
+            $process.StandardOutput.ReadLine() | Should Be "2"
+            $process.StandardInput.Write("1+2`n")
+            $process.StandardOutput.ReadLine() | Should Be "PS> 1+2"
+            $process.StandardOutput.ReadLine() | Should Be "3"
+            $process.StandardInput.Close()
+            $process.StandardOutput.ReadToEnd() | Should Be "PS> "
+            EnsureChildHasExited $process
+        }
+
+        It "Redirected input explicit prompting" -Pending:$IsCore {
+            $si = NewProcessStartInfo "-noprofile -File -" -RedirectStdIn
+            $process = RunPowerShell $si
+            $process.StandardInput.Write("`$function:prompt = { 'PS> ' }`n")
+            $null = $process.StandardOutput.ReadLine()
+            $process.StandardInput.Write("1+1`n")
+            $process.StandardOutput.ReadLine() | Should Be "PS> 1+1"
+            $process.StandardOutput.ReadLine() | Should Be "2"
+            $process.StandardInput.Close()
+            $process.StandardOutput.ReadToEnd() | Should Be "PS> "
+            EnsureChildHasExited $process
+        }
+
+        It "Redirected input no prompting" -Pending:$IsCore {
+            $si = NewProcessStartInfo "-noprofile -" -RedirectStdIn
+            $process = RunPowerShell $si
+            $process.StandardInput.Write("1+1`n")
+            $process.StandardInput.Close()
+            $process.StandardOutput.ReadToEnd() | Should Be "2${nl}"
+            EnsureChildHasExited $process
+        }
+
+        It "Redirected input w/ nested prompt" -Pending:$IsCore {
+            $si = NewProcessStartInfo "-noprofile ""`$function:prompt = { 'PS' + ('>'*(`$nestedPromptLevel+1)) + ' ' }""" -RedirectStdIn
+            $process = RunPowerShell $si
+            $process.StandardInput.Write("`$host.EnterNestedPrompt()`n")
+            $process.StandardOutput.ReadLine() | Should Be "PS> `$host.EnterNestedPrompt()"
+            $process.StandardInput.Write("exit`n")
+            $process.StandardOutput.ReadLine() | Should Be "PS>> exit"
+            $process.StandardInput.Close()
+            $process.StandardOutput.ReadToEnd() | Should Be "PS> "
+            EnsureChildHasExited $process
+        }
+    }
+
+    Context "Exception handling" {
+        It "Should handle a CallDepthOverflow" {
+            # Infinite recursion
+            function recurse
+            {
+                recurse $args
+            }
+
+            try
+            {
+                recurse "args"
+                Throw "Incorrect exception"
+            }
+            catch
+            {
+                $_.FullyQualifiedErrorId | Should Be "CallDepthOverflow"
+            }
+        }
+    }
+}