Implement tests for software-report-module (#6815)

* Minor improvements

* fix typos

* fix brew rendering

* add temp test

* Implement tests

* Add arguments validation

* ToMarkdown()

* Use before-All and helpers

* Get rid of arrays

* Add validation, no new nodes after header

* Fix naming

* add workflow

* Revisit comments + tiny improvements

* Fix tables

* Fix html table indent

* remove comment

* attemp to break test - testing CI

* revert breaking test

* fix nitpicks

helpers/software-report-base/tests/TestHelpers.psm1

@@ -0,0 +1,34 @@
+function ShouldBeArray([Array] $ActualValue, [Array]$ExpectedValue, [Switch] $Negate, [String] $Because) {
+    if ($Negate) {
+        throw "Negation is not supported for Should-BeArray"
+    }
+
+    if ($ExpectedValue.Count -eq 0) {
+        throw "Expected array cannot be empty. Use Should-BeNullOrEmpty instead."
+    }
+
+    $ExpectedValue | ForEach-Object {
+        if ($_.GetType() -notin @([String], [Int32])) {
+            throw "Only string or int arrays are supported in Should-BeArray"
+        }
+    }
+
+    $actualValueJson = $ActualValue | ConvertTo-Json
+    $expectedValueJson = $ExpectedValue | ConvertTo-Json
+
+    $succeeded = ($ActualValue.Count -eq $ExpectedValue.Count) -and ($actualValueJson -eq $expectedValueJson)
+
+    if (-not $succeeded) {
+        $failureMessage = "Expected array '$actualValueJson' to be equal to '$expectedValueJson'"
+    }
+
+    return [PSCustomObject]@{
+        Succeeded = $succeeded
+        FailureMessage = $failureMessage
+    }
+}
+
+Add-ShouldOperator -Name BeArray `
+    -InternalName 'ShouldBeArray' `
+    -Test ${function:ShouldBeArray} `
+    -SupportsArrayInput