FixStacktraceLanguage

src/Pester.Runtime.ps1

@@ -59,6 +59,20 @@ $script:SessionStateInternalProperty = [System.Management.Automation.SessionStat
 $script:ScriptBlockSessionStateInternalProperty = [System.Management.Automation.ScriptBlock].GetProperty('SessionStateInternal', $flags)
 $script:ScriptBlockSessionStateProperty = [System.Management.Automation.ScriptBlock].GetProperty("SessionState", $flags)
 
+function Get-StackTraceLanguage {
+    $err = try { throw "err" }  catch { $_ }
+    $firstFrame = ($err.ScriptStackTrace -split [System.Environment]::NewLine, 2 )[0]
+    if ($firstFrame -match "(?<at>.[^G]?)\s+Get-StackTraceLanguage(?<separator>.).+:\s+(?<line>.\S+)\s\d+") {
+        @{
+            At        = $Matches["at"]
+            Separator = $Matches["separator"]
+            Line      = $Matches["line"]
+        }
+    }
+}
+#defining script variable
+$script:StackTraceLanguage = Get-StackTraceLanguage
+
 if (notDefined PesterPreference) {
     $PesterPreference = [PesterConfiguration]::Default
 }

src/functions/Output.ps1

@@ -539,25 +539,9 @@ function ConvertTo-FailureLines {
         }
         else {
             # omit the lines internal to Pester
-            if ((GetPesterOS) -ne 'Windows') {
-                [String]$isPesterFunction = '^at .*, .*/Pester.psm1: line [0-9]*$'
-                [String]$isShould = '^at (Should<End>|Invoke-Assertion), .*/Pester.psm1: line [0-9]*$'
-                # [String]$pattern6 = '^at <ScriptBlock>, (<No file>|.*/Pester.psm1): line [0-9]*$'
-            }
-            else {
-                [String]$isPesterFunction = '^at .*, .*\\Pester.psm1: line [0-9]*$'
-                [String]$isShould = '^at (Should<End>|Invoke-Assertion), .*\\Pester.psm1: line [0-9]*$'
-            }
-
-            # PESTER_BUILD
-            if ($true) {
-                # no code
-                # non inlined scripts will have different paths just omit everything from the src folder
-                $path = [regex]::Escape(($PSScriptRoot | & $SafeCommands["Split-Path"]))
-                [String]$isPesterFunction = "^at .*, .*$path.*: line [0-9]*$"
-                [String]$isShould = "^at (Should<End>|Invoke-Assertion), .*$path.*: line [0-9]*$"
-            }
-            # end PESTER_BUILD
+            $path = [regex]::Escape(($PSScriptRoot | & $SafeCommands["Split-Path"]))
+            [String]$isPesterFunction = "^{0}.*{1} .*$path.*: {2} [0-9]*$" -f $script:StackTraceLanguage.At, $script:StackTraceLanguage.Separator, $script:StackTraceLanguage.Line
+            [String]$isShould = "^{0} (Should<End>|Invoke-Assertion){1} .*$path.*: {2} [0-9]*$" -f $script:StackTraceLanguage.At, $script:StackTraceLanguage.Separator, $script:StackTraceLanguage.Line
 
             # reducing the stack trace so we see only stack trace until the current It block and not up until the invocation of the
             # whole test script itself. This is achieved by shortening the stack trace when any Runtime function is hit.

src/functions/assertions/PesterThrow.ps1

@@ -153,7 +153,7 @@ function Get-DoValuesMatch($ActualValue, $ExpectedValue) {
 function Get-ExceptionLineInfo($info) {
     # $info.PositionMessage has a leading blank line that we need to account for in PowerShell 2.0
     $positionMessage = $info.PositionMessage -split '\r?\n' -match '\S' -join [System.Environment]::NewLine
-    return ($positionMessage -replace "^At ", "from ")
+    return ($positionMessage -replace "^$($script:StackTraceLanguage.At) ", "from ")
 }
 
 function ShouldThrowFailureMessage {