fix Format-Checklist bug and example.ps1 integration test script (#23)

example.ps1

@@ -2,6 +2,8 @@
 $ErrorActionPreference = "Stop"
 Import-Module "$PSScriptRoot\Requirements.psd1" -Force
 
+
+
 $requirements = @(
     @{
         Name     = "Resource 1"
@@ -19,13 +21,13 @@ $requirements = @(
         Name     = "Resource 3"
         Describe = "Resource 3 is present in the system"
         Test     = { $mySystem -contains 3 }
-        Set      = { $mySystem.Add(3) | Out-Null; Start-Sleep 1 }
+        Set      = { throw "This should not have been reached!"; Start-Sleep 1 }
     },
     @{
         Name     = "Resource 4"
         Describe = "Resource 4 is present in the system"
         Test     = { $mySystem -contains 4 }
-        Set      = { $mySystem.Add(4) | Out-Null; Start-Sleep 1 }
+        Set      = { throw "This should not have been reached!"; Start-Sleep 1 }
     },
     @{
         Name     = "Resource 5"
@@ -37,14 +39,20 @@ $requirements = @(
 
 # demo using Format-Table
 $mySystem = [System.Collections.ArrayList]::new()
+$mySystem.Add(3) | Out-Null
+$mySystem.Add(4) | Out-Null
 $requirements | Invoke-Requirement | Format-Table
 
 # demo using Format-Checklist
 $mySystem = [System.Collections.ArrayList]::new()
+$mySystem.Add(3) | Out-Null
+$mySystem.Add(4) | Out-Null
 $requirements | Invoke-Requirement | Format-Checklist
 
 # demo using Format-CallStack
 $mySystem = [System.Collections.ArrayList]::new()
+$mySystem.Add(3) | Out-Null
+$mySystem.Add(4) | Out-Null
 $requirements | Invoke-Requirement | Format-CallStack
 
 # demo using Format-Callstack with nested requirements

src/formatters.ps1

@@ -38,6 +38,18 @@ function Format-Checklist {
                         Write-Host $message -ForegroundColor $color -NoNewline
                         $lastDescription = $description
                     }
+                    "Stop" {
+                        switch ($result) {
+                            $true {
+                                $symbol = [char]8730
+                                $color = "Green"
+                                $message = "$timestamp [ $symbol ] $description"
+                                Write-Host "`r$(' ' * $lastDescription.Length)" -NoNewline
+                                Write-Host "`r$message" -ForegroundColor $color
+                                $lastDescription = $description
+                            }
+                        }
+                    }
                 }
             }
             "Validate" {