Update 0 violation comparison in test cases

Author: Kapil Borle

Tests/Rules/UseConsistentWhitespace.tests.ps1

@@ -41,8 +41,7 @@ if ($true){}
             $def = @'
 if($true) {}
 '@
-            $violations = Invoke-ScriptAnalyzer -ScriptDefinition $def -Settings $settings
-            $violations.Count | Should Be 0
+            $violations = Invoke-ScriptAnalyzer -ScriptDefinition $def -Settings $settings | Should Be $null
         }
 
         It "Should not find violation if an open brace follows a foreach member invocation" {
@@ -83,8 +82,7 @@ function foo($param1) {
 
 }
 '@
-            $violations = Invoke-ScriptAnalyzer -ScriptDefinition $def -Settings $settings
-            $violations.Count | Should Be 0
+            $violations = Invoke-ScriptAnalyzer -ScriptDefinition $def -Settings $settings | Should Be $null
         }
 
         It "Should not find a violation in a param block" {
@@ -93,8 +91,7 @@ function foo() {
     param( )
 }
 '@
-            $violations = Invoke-ScriptAnalyzer -ScriptDefinition $def -Settings $settings
-            $violations.Count | Should Be 0
+            $violations = Invoke-ScriptAnalyzer -ScriptDefinition $def -Settings $settings | Should Be $null
         }
 
         It "Should not find a violation in a nested open paren" {
@@ -103,16 +100,14 @@ function foo($param) {
     ((Get-Process))
 }
 '@
-            $violations = Invoke-ScriptAnalyzer -ScriptDefinition $def -Settings $settings
-            $violations.Count | Should Be 0
+            $violations = Invoke-ScriptAnalyzer -ScriptDefinition $def -Settings $settings | Should Be $null
         }
 
         It "Should not find a violation on a method call" {
             $def = @'
 $x.foo("bar")
 '@
-            $violations = Invoke-ScriptAnalyzer -ScriptDefinition $def -Settings $settings
-            $violations.Count | Should Be 0
+            $violations = Invoke-ScriptAnalyzer -ScriptDefinition $def -Settings $settings | Should Be $null
         }
     }
 
@@ -162,16 +157,14 @@ $x = @"
 "abc"
 "@
 '@
-            $violations = Invoke-ScriptAnalyzer -ScriptDefinition $def -Settings $settings
-            $violations.Count | Should Be 0
+            $violations = Invoke-ScriptAnalyzer -ScriptDefinition $def -Settings $settings | Should Be $null
         }
 
         It "Should not find violation if there are whitespaces of size 1 around an assignment operator for here string" {
             $def = @'
 $x = 1
 '@
-            $violations = Invoke-ScriptAnalyzer -ScriptDefinition $def -Settings $settings
-            $violations.Count | Should Be 0
+            $violations = Invoke-ScriptAnalyzer -ScriptDefinition $def -Settings $settings | Should Be $null
         }
 
         It "Should not find violation if there are no whitespaces around DotDot operator" {
@@ -202,8 +195,7 @@ $x = @(1,2)
             $def = @'
 $x = @(1, 2)
 '@
-            $violations = Invoke-ScriptAnalyzer -ScriptDefinition $def -Settings $settings
-            $violations.Count | Should Be 0
+            $violations = Invoke-ScriptAnalyzer -ScriptDefinition $def -Settings $settings | Should Be $null
         }
     }
 
@@ -227,8 +219,7 @@ $x = @{a=1;b=2}
             $def = @'
 $x = @{a=1; b=2}
 '@
-            $violations = Invoke-ScriptAnalyzer -ScriptDefinition $def -Settings $settings
-            $violations.Count | Should Be 0
+            $violations = Invoke-ScriptAnalyzer -ScriptDefinition $def -Settings $settings | Should Be $null
         }
 
         It "Should not find a violation if a new-line follows a semi-colon" {
@@ -238,16 +229,14 @@ $x = @{
     b=2
 }
 '@
-            $violations = Invoke-ScriptAnalyzer -ScriptDefinition $def -Settings $settings
-            $violations.Count | Should Be 0
+            $violations = Invoke-ScriptAnalyzer -ScriptDefinition $def -Settings $settings | Should Be $null
         }
 
         It "Should not find a violation if a end of input follows a semi-colon" {
             $def = @'
 $x = "abc";
 '@
-            $violations = Invoke-ScriptAnalyzer -ScriptDefinition $def -Settings $settings
-            $violations.Count | Should Be 0
+            $violations = Invoke-ScriptAnalyzer -ScriptDefinition $def -Settings $settings | Should Be $null
         }