Add test case to check indenation after backtick

Author: Kapil Borle

Tests/Rules/UseConsistentIndentation.tests.ps1

@@ -1,4 +1,11 @@
-Import-Module PSScriptAnalyzer
+$directory = Split-Path -Parent $MyInvocation.MyCommand.Path
+$testRootDirectory = Split-Path -Parent $directory
+
+Import-Module PSScriptAnalyzer
+Import-Module (Join-Path $testRootDirectory "PSScriptAnalyzerTestHelper.psm1")
+
+$indentationUnit = ' '
+$indentationSize = 4
 $settings = @{
     IncludeRules = @("PSUseConsistentIndentation")
     Rules = @{
@@ -143,5 +150,22 @@ select Name,Id |
           $violations = Invoke-ScriptAnalyzer -ScriptDefinition $def -Settings $settings
           $violations.Count | Should Be 3
         }
+
+        It "Should indent properly after line continuation (backtick) character" {
+            $def = @'
+$x = "this " + `
+"Should be indented properly"
+'@
+            $violations = Invoke-ScriptAnalyzer -ScriptDefinition $def -Settings $settings
+            $violations.Count | Should Be 1
+            $params = @{
+                RawContent = $def
+                DiagnosticRecord = $violations[0]
+                CorrectionsCount = 1
+                ViolationText = "`"Should be indented properly`""
+                CorrectionText = (New-Object -TypeName String -ArgumentList $indentationUnit,$indentationSize) + "`"Should be indented properly`""
+            }
+            Test-CorrectionExtentFromContent @params
+        }
     }
 }