Add tests for ConvertFrom-SourceLineNumber

Author: Jaykul

Tests/Public/ConvertFrom-SourceLineNumber.Tests.ps1

@@ -0,0 +1,44 @@
+#requires -Module ModuleBuilder
+Describe "ConvertFrom-SourceLineNumber" {
+    # use the integration test code
+    BeforeAll {
+        Build-Module $PSScriptRoot/../Integration/Source1/build.psd1 -Passthru
+        Push-Location $PSScriptRoot -StackName ConvertFrom-SourceLineNumber
+
+        $global:Convert_LineNumber_ModulePath = Convert-Path "./../Integration/Result1/Source1/1.0.0/Source1.psm1"
+        $global:Convert_LineNumber_ModuleSource = Convert-Path "./../Integration/Source1"
+        $global:Convert_LineNumber_ModuleContent = Get-Content $global:Convert_LineNumber_ModulePath
+        ${global:\} = [io.path]::DirectorySeparatorChar
+
+        $global:TestCases = @(
+            @{ outputLine = 18; sourceFile = ".${\}Private${\}Get-TestNotExportedAliases.ps1"; sourceLine = 13; Module = $Convert_LineNumber_ModulePath }
+            @{ outputLine = 24; sourceFile = ".${\}Private${\}GetFinale.ps1"; sourceLine = 4; Module = $Convert_LineNumber_ModulePath }
+            @{ outputLine = 43; sourceFile = ".${\}Public${\}Get-Source.ps1"; sourceLine = 5; Module = $Convert_LineNumber_ModulePath }
+        )
+    }
+    AfterAll {
+        Pop-Location -StackName ConvertFrom-SourceLineNumber
+    }
+
+
+    It "Should map line <outputLine> in the Module to line <sourceLine> in the source of <sourceFile>" -TestCases $TestCases {
+        param($outputLine, $sourceFile, $sourceLine, $module)
+
+        $sourcePath = Join-Path $Convert_LineNumber_ModuleSource $SourceFile | Convert-Path
+        $OutputLocation = ConvertFrom-SourceLineNumber $sourcePath $sourceLine -Module $module
+        $OutputLocation.Script | Should -Be $Convert_LineNumber_ModulePath
+        $OutputLocation.Line | Should -Be $outputLine
+
+        $line = (Get-Content $sourcePath)[$sourceLine - 1]
+        try {
+            $Convert_LineNumber_ModuleContent[$OutputLocation.Line - 1] | Should -Be $line
+        } catch {
+            throw "Failed to match module line $outputLine to $($sourceFile) line $($sourceLine).`nExpected $($Convert_LineNumber_ModuleContent[$OutputLocation.Line - 1])`nBut got $line"
+        }
+    }
+
+    It "Should warn if the SourceFile doesn't exist" {
+        ConvertFrom-SourceLineNumber -SourceFile TestDrive:/NoSuchFile -SourceLineNumber 10 -Module $Convert_LineNumber_ModulePath -WarningVariable Warns
+        $Warns | Should -Be "'TestDrive:/NoSuchFile' not found in $Convert_LineNumber_ModulePath"
+    }
+}