[ubuntu] Pester tests for dotnet sdk, cmd tools and codeql (#2335)

* dotnet cmd codeql tests

* fixed dotnet tests, added codeql to toolset

* changed codeql version to wildcard

* removed unused import and a test call

* tmp

* lowercase file name

* removed sourcing invoke-tests

Co-authored-by: Leonid Lapshin <originalnoe-nazvanie@yandex.ru>

images/linux/scripts/tests/DotnetSDK.Tests.ps1

@@ -0,0 +1,31 @@
+Import-Module "$PSScriptRoot/../helpers/Common.Helpers.psm1"
+
+Describe "Dotnet" {
+
+    BeforeAll {
+        $dotnetSDKs = dotnet --list-sdks | ConvertTo-Json
+        $dotnetRuntimes = dotnet --list-runtimes | ConvertTo-Json
+    }
+    
+    $dotnetVersions = (Get-ToolsetContent).dotnet.versions
+
+    Context "Default" {
+        It "Default Dotnet SDK is available" {
+            "dotnet --version" | Should -ReturnZeroExitCode
+        }
+    }
+
+    foreach ($version in $dotnetVersions) {
+        Context "Dotnet $version" {
+            $dotnet = @{ dotnetVersion = $version }
+
+            It "SDK $version is available" -TestCases $dotnet {
+                $dotnetSDKs | Should -Match "$dotnetVersion.[1-9]*"
+            }
+
+            It "Runtime $version is available" -TestCases $dotnet {
+                $dotnetRuntimes | Should -Match "$dotnetVersion.[1-9]*"
+            }
+        }
+    }
+}