$i is undefined in Else clauses when -IncludeLegend and -LegendText parameterset used

[jzabroski]

Arrange

 Invoke-WebRequest -Uri "http://data.githubarchive.org/2015-01-01-12.json.gz" -OutFile githubarchive2012-01-01-12.json.gz"
 Install-Module PS7Zip -Repository PSGallery -Scope CurrentUser
 Set-ExecutionPolicy RemoteSigned -CurrentUser
 Import-Module PS7Zip
 Expand-7Zip .\githubarchive2012-01-01-12.json.gz
 $data = Get-Content .\githubarchive2012-01-01-12.json | ConvertFrom-Json
 Import-Module .\PoshCharts.psm1
 $plottable = $data | group type;
 $legend = $plottable | select -ExpandProperty name

Act 1

 $plottable | Out-ColumnChart -XField Name -YField Count -IncludeLegend -LegendText $legend -Title "# of Events"

Assert 1

  # Should not throw error - fails

Actual 1

Index operation failed; the array index evaluated to null.
At C:\source\PoshCharts\PoshCharts\Functions\Public\Out-ColumnChart.ps1:172 char:21

• ... $chart.Series[$SeriesLabel].LegendText = $LegendText[($i- ...

•             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  

  • CategoryInfo : InvalidOperation: (:) [], RuntimeException
  • FullyQualifiedErrorId : NullArrayIndex

Act 2

 $data | group type | Out-AreaChart -XField Name -YField Count -IncludeLegend -LegendText $legend -Title "# of Events"

Assert 2

 # Should not throw error - fails

Actual 2

Index operation failed; the array index evaluated to null.
At C:\source\PoshCharts\PoshCharts\Functions\Public\Out-AreaChart.ps1:172 char:21

• ... $chart.Series[$SeriesLabel].LegendText = $LegendText[($i- ...

•             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  

  • CategoryInfo : InvalidOperation: (:) [], RuntimeException
  • FullyQualifiedErrorId : NullArrayIndex

Act 3

$data | group type | Out-BarChart -XField Name -YField Count -IncludeLegend -LegendText $legend -Title "# of Events"

Assert 3

 # Should not throw error - fails

Actual 3

Index operation failed; the array index evaluated to null.
At C:\source\PoshCharts\PoshCharts\Functions\Public\Out-BarChart.ps1:172 char:21

• ... $chart.Series[$SeriesLabel].LegendText = $LegendText[($i- ...

•             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  

  • CategoryInfo : InvalidOperation: (:) [], RuntimeException
  • FullyQualifiedErrorId : NullArrayIndex

etc.