Format single item arrays as an array

Author: fflaten

src/Format.ps1

@@ -121,6 +121,11 @@ function Format-Nicely ($Value, [switch]$Pretty) {
         return Format-ScriptBlock -Value $Value
     }
 
+    # Check collection before Is-Value to format single item arrays
+    if (Is-Collection -Value $Value) {
+        return Format-Collection -Value $Value -Pretty:$Pretty
+    }
+
     if (Is-Value -Value $Value) {
         return $Value
     }
@@ -137,10 +142,6 @@ function Format-Nicely ($Value, [switch]$Pretty) {
         #return Format-Dictionary -Value $Value
     }
 
-    if (Is-Collection -Value $Value) {
-        return Format-Collection -Value $Value -Pretty:$Pretty
-    }
-
     # no advanced formatting of objects in the first version, till I balance it
     return [string]$Value
     # Format-Object -Value $Value -Property (Get-DisplayProperty $Value) -Pretty:$Pretty

tst/Format.Tests.ps1

@@ -148,7 +148,8 @@ Describe "Format-Nicely" {
         @{ Value = 1; Expected = '1' },
         @{ Value = (1, 2, 3); Expected = '@(1, 2, 3)' },
         @{ Value = 1.1; Expected = '1.1' },
-        @{ Value = [int]; Expected = '[int]' }
+        @{ Value = [int]; Expected = '[int]' },
+        @{ Value = @('a'); Expected = "@('a')" }
         # @{ Value = [PSCustomObject] @{ Name = "Jakub" }; Expected = 'PSObject{Name=Jakub}' },
         #@{ Value = (Get-Process Idle); Expected = 'Diagnostics.Process{Id=0; Name=Idle}'},
         #@{ Value = (New-Object -Type Assertions.TestType.Person -Property @{Name = 'Jakub'; Age = 28}); Expected = "Assertions.TestType.Person{Age=28; Name=Jakub}"}

tst/functions/assertions/HaveCount.Tests.ps1

@@ -35,7 +35,7 @@ InPesterModuleScope {
 
         It "returns the correct assertion message when collection is not empty" {
             $err = { @(1) | Should -HaveCount 0 -Because 'reason' } | Verify-AssertionFailed
-            $err.Exception.Message | Verify-Equal 'Expected an empty collection, because reason, but got collection with size 1 1.'
+            $err.Exception.Message | Verify-Equal 'Expected an empty collection, because reason, but got collection with size 1 @(1).'
         }
 
         It "validates the expected size to be bigger than 0" {