Adding XDG tests

test/powershell/Profile.Tests.ps1

@@ -0,0 +1,64 @@
+Describe "XDG Base Directory Specification" {
+
+    BeforeAll {
+        $powershell = Join-Path -Path $PsHome -ChildPath "powershell"
+        $profileName = "Microsoft.PowerShell_profile.ps1"
+    }
+
+    BeforeEach {
+        $original_XDG_CONFIG_HOME = $env:XDG_CONFIG_HOME
+        $original_XDG_CACHE_HOME = $env:XDG_CACHE_HOME
+        $original_XDG_DATA_HOME = $env:XDG_DATA_HOME
+
+    }
+
+    AfterEach {
+        $env:XDG_CONFIG_HOME = $original_XDG_CONFIG_HOME
+        $env:XDG_CACHE_HOME = $original_XDG_CACHE_HOME
+        $env:XDG_DATA_HOME = $original_XDG_DATA_HOME
+    }
+
+    Context "Profile" {
+	
+        It "Should not change Windows behavior" -Skip:($IsLinux -or $IsOSX) {
+            # Assuming this is run outside the OPS host on Windows
+            & $powershell -noprofile `$PROFILE | Should Be $PROFILE
+        }
+
+        It "Should start with the default profile" -Skip:$IsWindows {
+            $expected = [IO.Path]::Combine($env:HOME, ".config/powershell", $profileName)
+            # Escape variable with backtick so new process interpolates it
+             & $powershell -noprofile `$PROFILE | Should Be $expected
+        }
+
+        It "Should respect XDG_CONFIG_HOME" -Skip:$IsWindows {
+            $env:XDG_CONFIG_HOME = [IO.Path]::Combine($pwd, "test", "path")
+            # Escape variable with backtick so new process interpolates it 
+            $profileDir =  [IO.Path]::Combine($env:XDG_CONFIG_HOME, "powershell", $profileName)
+            & $powershell -noprofile `$PROFILE | Should Be $profileDir
+        }
+}
+
+    Context "Modules" {
+
+        It "Should start with the default module path" -Skip:$IsWindows {
+            $expected = [IO.Path]::Combine($env:HOME, ".config", "powershell")
+            $modulepath = & $powershell -noprofile `$env:PSMODULEPATH
+            $modulepath = $modulepath.split(';')[0]
+            $modulepath | Should Be $expected
+        }
+
+	It "Should respect XDG_CACHE_HOME" -Skip:$IsWindows {
+	    $env:XDG_CACHE_HOME = [IO.Path]::Combine($pwd, "test", "path")
+            $expected = [IO.Path]::Combine($HOME, "Powershell", "test", "path")
+            & $powershell -noprofile `$env:XDG_CACHE_HOME | Should Be $expected
+	}
+	
+	It "Should respect XDG_DATA_HOME" -Skip:$IsWindows {
+            $env:XDG_DATA_HOME = [IO.Path]::Combine($pwd, "test", "path")
+            $datahomeDir = [IO.Path]::Combine($env:XDG_DATA_HOME, "ConsoleHost_history.txt")
+            $expected = [IO.Path]::Combine($HOME, "Powershell", "test", "path", "ConsoleHost_history.txt")
+            $datahomeDir | Should Be $expected
+	}
+    }
+}