2. Working example.<\/h3>\n
If you run an OpenCover<\/i> with the same arguments you were running it for a classic framework, you will end up with something like this And then run OpenCover<\/i> with and -oldStyle<\/i> switch<\/p>\n From now on, OpenCover<\/i> recognizes PDB<\/i> files and the code coverage is calculated correctly As we use a Cake<\/i> as our build automation tool I’ve also prepared a sample script for generating a code coverage. The core part of the script looks as follows<\/p>\n Notice that script is able to merge code coverage results from multiple test projects thanks to MergeOutput<\/i> flag passed to OpenCover<\/i>.<\/p>\n 1. Introduction. I’ve been struggling for some time to make OpenCover work with .NET Core projects, so I’ve decided to document a working example. This is basically an aggregation of hints and answers I found on the Web (especially in here) 2. Working example. If you run an OpenCover with the same arguments you were […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[328],"tags":[329],"class_list":["post-1223","post","type-post","status-publish","format-standard","hentry","category-net-core","tag-opencover"],"_links":{"self":[{"href":"https:\/\/tpodolak.com\/blog\/wp-json\/wp\/v2\/posts\/1223","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tpodolak.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tpodolak.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tpodolak.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/tpodolak.com\/blog\/wp-json\/wp\/v2\/comments?post=1223"}],"version-history":[{"count":8,"href":"https:\/\/tpodolak.com\/blog\/wp-json\/wp\/v2\/posts\/1223\/revisions"}],"predecessor-version":[{"id":1234,"href":"https:\/\/tpodolak.com\/blog\/wp-json\/wp\/v2\/posts\/1223\/revisions\/1234"}],"wp:attachment":[{"href":"https:\/\/tpodolak.com\/blog\/wp-json\/wp\/v2\/media?parent=1223"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tpodolak.com\/blog\/wp-json\/wp\/v2\/categories?post=1223"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tpodolak.com\/blog\/wp-json\/wp\/v2\/tags?post=1223"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\n![\"\"](\"\/\/tpodolak.com\/blog\/wp-content\/uploads\/2017\/10\/net-core-calculating-code-coverage-on-windows\/MissingPdbs.png\")
<\/a> As you can see the coverage was not calculated and OpenCover<\/i> is complaining about a missing PDBs<\/i>. In order to fix that we have to do two things. First of all, we have to build the project with a full PDBs<\/i><\/p>\n\r\ndotnet build \"PathToYourSolution.sln\" \/p:DebugType=Full\r\n<\/pre>\n
\r\nOpenCover.Console.exe -target:\"C:\/Program Files\/dotnet\/dotnet.exe\" -targetargs:\"test \\\"PathToTestProject.csproj\\\" --configuration Debug --no-build\" -filter:\"+[*]* -[*.Tests*]*\" -oldStyle -register:user -output:\"OpenCover.xml\"\r\n<\/pre>\n
\n![\"\"](\"\/\/tpodolak.com\/blog\/wp-content\/uploads\/2017\/10\/net-core-calculating-code-coverage-on-windows\/OkPdbs.png\")
<\/a><\/p>\n3. Cake script.<\/h3>\n
\r\n\/\/ rest of the code omitted for brevity\r\n\r\nTask(\"Build\")\r\n .IsDependentOn(\"Restore-NuGet-Packages\")\r\n .Does(() =>\r\n{\r\n DotNetCoreBuild(paths.Files.Solution.ToString(), new DotNetCoreBuildSettings\r\n {\r\n Configuration = parameters.Configuration,\r\n ArgumentCustomization = arg => arg.AppendSwitch(\"\/p:DebugType\",\"=\",\"Full\")\r\n });\r\n});\r\n\r\nTask(\"Run-Tests\")\r\n .IsDependentOn(\"Build\")\r\n .Does(() =>\r\n{\r\n var success = true;\r\n var openCoverSettings = new OpenCoverSettings\r\n {\r\n OldStyle = true,\r\n MergeOutput = true\r\n }\r\n .WithFilter(\"+[*]* -[*.Tests*]*\");\r\n\r\n foreach(var project in paths.Files.TestProjects)\r\n {\r\n try \r\n {\r\n var projectFile = MakeAbsolute(project).ToString();\r\n var dotNetTestSettings = new DotNetCoreTestSettings\r\n {\r\n Configuration = parameters.Configuration,\r\n NoBuild = true\r\n };\r\n\r\n OpenCover(context => context.DotNetCoreTest(projectFile, dotNetTestSettings), paths.Files.TestCoverageOutput, openCoverSettings);\r\n }\r\n catch(Exception ex)\r\n {\r\n success = false;\r\n Error(\"There was an error while running the tests\", ex);\r\n }\r\n }\r\n\r\n ReportGenerator(paths.Files.TestCoverageOutput, paths.Directories.TestResults);\r\n\r\n if(success == false)\r\n {\r\n throw new CakeException(\"There was an error while running the tests\");\r\n }\r\n\r\n});\r\n<\/pre>\n![\"\"](\"\/\/tpodolak.com\/blog\/wp-content\/uploads\/2017\/10\/net-core-calculating-code-coverage-on-windows\/Report.png\")
<\/a>
\nFull sources of that script (along with a dotnet vstest<\/i> alternative approach) can be found here<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"