Replace current validates with pester testing approach #5 (#1232)

* ,oving to the pester approach part #5

* moving to the pester approach part #5

* fixed PostgreSQL tests

* return Validate-Svn.ps1

* fixed Selenium test

* fixed rust test

* fix rust test

images/win/scripts/Tests/Rust.Tests.ps1

@@ -0,0 +1,27 @@
+Describe "Rust" {
+    $rustTools = @(
+        @{ToolName = "rustup"; binPath = "C:\Rust\.cargo\bin\rustup.exe"}
+        @{ToolName = "rustc"; binPath = "C:\Rust\.cargo\bin\rustc.exe"}
+        @{ToolName = "cargo"; binPath = "C:\Rust\.cargo\bin\cargo.exe"}
+        @{ToolName = "cargo audit"; binPath = "C:\Rust\.cargo\bin\cargo-audit.exe"}
+        @{ToolName = "cargo outdated"; binPath = "C:\Rust\.cargo\bin\cargo-outdated.exe"}
+    )
+
+    $rustEnvNotExists = @(
+        @{envVar = "RUSTUP_HOME"}
+        @{envVar = "CARGO_HOME"}
+    )
+
+    It "C:\Rust\.rustup and C:\Rust\.cargo folders exist" {
+        "C:\Rust\.rustup", "C:\Rust\.cargo" | Should -Exist
+    }
+
+    It "<envVar> environment variable does not exist" -TestCases $rustEnvNotExists {
+        [Environment]::GetEnvironmentVariables("Machine").ContainsKey($envVar) | Should -BeFalse
+    }
+
+    It "<ToolName> is installed to the '<binPath>' folder" -TestCases $rustTools {
+        "$ToolName --version" | Should -ReturnZeroExitCode
+        $binPath | Should -Exist
+    }
+}