ReportGenerator

ReportGenerator converts XML reports generated by OpenCover, dotCover, Visual Studio, NCover, Cobertura, JaCoCo or Clover into human readable reports in various formats.

The reports do not only show the coverage quota, but also include the source code and visualize which lines have been covered.

ReportGenerator supports merging several reports into one. It is also possible to pass one XML file containing several reports to ReportGenerator (e.g. a build log file).

Author: Daniel Palme
Blog: www.palmmedia.de
Twitter: @danielpalme

File formats

ReportGenerator supports several input and output formats. The wiki explains the different output formats or you can download sample reports in all formats.
If you need a custom format, you can create a plugin.

Input formats	Output formats
OpenCover (Nuget) OpenCover format is also generated by coverlet and altcover dotCover (Nuget, /ReportType=DetailedXML) Visual Studio (vstest.console.exe, CodeCoverage.exe) NCover (tested version 1.5.8, other versions may not work) Cobertura JaCoCo Clover Mono (mprof-report)	HTML, HTMLSummary, HTMLInline, HtmlInline_AzurePipelines, HtmlInline_AzurePipelines_Dark, HTMLChart, MHTML Cobertura SonarQube XML, XMLSummary Latex, LatexSummary TextSummary CsvSummary PngChart Badges Custom reports

Screenshots

The screenshots show two snippets of the generated reports:

Badges

Badges in SVG and PNG format can be generated if -reporttypes:Badges is used:

Usage

ReportGenerator is a commandline tool which works with full .NET Framework and .NET Core.
Use the online configuration tool to get started quickly.

ReportGenerator requires the following parameters:

Parameters:
    ["]-reports:<report>[;<report>][;<report>]["]
    ["]-targetdir:<target directory>["]
    [["]-reporttypes:<Html|HtmlSummary|...>[;<Html|HtmlSummary|...>]["]]
    [["]-sourcedirs:<directory>[;<directory>][;<directory>]["]]
    [["]-historydir:<history directory>["]]
    [["]-plugins:<plugin>[;<plugin>][;<plugin>]["]]
    [["]-assemblyfilters:<(+|-)filter>[;<(+|-)filter>][;<(+|-)filter>]["]]
    [["]-classfilters:<(+|-)filter>[;<(+|-)filter>][;<(+|-)filter>]["]]
    [["]-filefilters:<(+|-)filter>[;<(+|-)filter>][;<(+|-)filter>]["]]
    [["]-verbosity:<Verbose|Info|Warning|Error|Off>["]]
    [["]-tag:<tag>["]]

Explanations:
   Reports:            The coverage reports that should be parsed (separated by semicolon).
                       Globbing is supported.
   Target directory:   The directory where the generated report should be saved.
   Report types:       The output formats and scope (separated by semicolon).
                       Values: Badges, Cobertura, CsvSummary, Html, HtmlChart, HtmlInline,
                       HtmlInline_AzurePipelines, HtmlInline_AzurePipelines_Dark,
                       HtmlSummary, Latex, LatexSummary, MHtml, PngChart, SonarQube, TextSummary, Xml, XmlSummary
   Source directories: Optional directories which contain the corresponding source code (separated by semicolon).
                       The source directories are used if coverage report contains classes without path information.
   History directory:  Optional directory for storing persistent coverage information.
                       Can be used in future reports to show coverage evolution.
   Plugins:            Optional plugin files for custom reports or custom history storage (separated by semicolon). 
   Assembly filters:   Optional list of assemblies that should be included or excluded in the report.
   Class filters:      Optional list of classes that should be included or excluded in the report.
   File filters:       Optional list of files that should be included or excluded in the report.
                       Exclusion filters take precedence over inclusion filters.                      
                       Wildcards are allowed.
   Verbosity:          The verbosity level of the log messages.
                       Values: Verbose, Info, Warning, Error, Off
   Tag:                Optional tag or build version.

Default values:
   -reporttypes:Html
   -assemblyfilters:+*
   -classfilters:+*
   -filefilters:+*
   -verbosity:Verbose

Examples:
   "-reports:coverage.xml" "-targetdir:C:\report"
   "-reports:target\*\*.xml" "-targetdir:C:\report" -reporttypes:Latex;HtmlSummary -tag:v1.4.5
   "-reports:coverage1.xml;coverage2.xml" "-targetdir:report" "-sourcedirs:C:\MyProject" -plugins:CustomReports.dll
   "-reports:coverage.xml" "-targetdir:C:\report" "-assemblyfilters:+Included;-Excluded.*"

Available packages

Package	Platforms	Installation/Usage
ReportGenerator	.NET Core 2.0 .NET Framework 4.7	Use this package if your project is based on .NET Framework or .NET Core and you want to use ReportGenerator via the command line or a build script. Usage `$(UserProfile)\.nuget\packages\reportgenerator\x.y.z\tools\net47\ReportGenerator.exe [options]` `dotnet $(UserProfile).nuget\packages\reportgenerator\x.y.z\tools\netcoreapp2.1\ReportGenerator.dll [options]`
dotnet-reportgenerator-cli	.NET Core 2.0	Use this package if your project is based on .NET Core and you want to use ReportGenerator as a 'DotnetCliTool'. Installation Add `<DotNetCliToolReference Include="dotnet-reportgenerator-cli" Version="x.y.z" />` to your project file. Usage `dotnet reportgenerator [options]`
dotnet-reportgenerator-globaltool	.NET Core 2.1	Use this package if your project is based on .NET Core and you want to use ReportGenerator as a (global) 'DotnetTool'. Installation `dotnet tool install -g dotnet-reportgenerator-globaltool` `dotnet tool install dotnet-reportgenerator-globaltool --tool-path tools` Usage `reportgenerator [options]` `tools\reportgenerator.exe [options]`
ReportGenerator.Core	.NET Standard 2.0	Use this package if you want to write a custom plugin for ReportGenerator or if you want to call/execute ReportGenerator within your code base. Plugin development Custom reports Custom history storage
Azure Devops extension	.NET Core 2.0	Add the Azure Devops extension to your build pipeline.

MSBuild
A MSBuild task also exists:

<?xml version="1.0" encoding="utf-8"?>
<Project DefaultTargets="Coverage" xmlns="http://schemas.microsoft.com/developer/msbuild/2003" ToolsVersion="4.0">
  <ItemGroup>
    <PackageReference Include="ReportGenerator" Version="x.y.z" />
  </ItemGroup>
  <Target Name="Coverage">
    <ItemGroup>
      <CoverageFiles Include="OpenCover.xml" />
    </ItemGroup>
    <ReportGenerator ReportFiles="@(CoverageFiles)" TargetDirectory="report" ReportTypes="Html;Latex" HistoryDirectory="history" Plugins="CustomReports.dll" AssemblyFilters="+Include;-Excluded" VerbosityLevel="Verbose" />
  </Target>
</Project>

AxoCover
With the Visual Studio Plugin AxoCover you can get good test integration and you are able to generate a HTML report with a single click: Download in Visual Studio Marketplace

Thilas/ReportGenerator