public async Task <ICoverageAnalysisResult> AnalyseCoverage(Config config)
{
var memberIdsToNames = new Dictionary <string, string>();
var baseTempDirectory = TempDirectory.Create();
long memberId = 0;
long GenerateMemberId() => ++ memberId;
try
{
var copiedTestAssemblyFilePaths =
CopyTestAssembliesToTempDirectories(
config.TestAssemblyFilePaths,
baseTempDirectory)
.ToList();
using (var workspace = MSBuildWorkspaceFactory.Create())
{
var solution = await workspace.OpenSolutionAsync(config.SolutionFilePath);
await InstrumentThenCompileMultipleProjects(
solution.Projects.Where(p => Filtering.ShouldMutateProject(p, config)),
config,
baseTempDirectory,
copiedTestAssemblyFilePaths,
GenerateMemberId,
memberIdsToNames);
var result = new CoverageAnalysisResult();
for (int testAssemblyIndex = 0; testAssemblyIndex < config.TestAssemblyFilePaths.Length; ++testAssemblyIndex)
{
var copiedTestAssemblyFilePath = copiedTestAssemblyFilePaths[testAssemblyIndex];
var numTests = testFinder.FindTests(new[] { copiedTestAssemblyFilePath }).Length;
var runResult = testRunner.RunAllTestsAndAnalyseCoverage(
testAssemblyFilePaths: new [] { copiedTestAssemblyFilePath },
memberIdsToNames: memberIdsToNames,
onAnalysingTestCase: (test, index) => eventListener.BeginCoverageAnalysisOfTestCase(test, index, numTests));
if (runResult.Status != TestRunStatus.AllTestsPassed)
{
return(CoverageAnalysisResult.Error(runResult.Error));
}
var originalTestAssemblyFilePath = config.TestAssemblyFilePaths[testAssemblyIndex];
result = result.WithCoveredMembers(runResult.MembersAndCoveringTests, originalTestAssemblyFilePath);
}
return(result);
}
}
finally
{
Directory.Delete(baseTempDirectory, recursive: true);
}
}
internal CoverageAnalysisResult WithCoveredMembers(
IDictionary <string, ImmutableHashSet <string> > membersAndTheirCoveringTests,
string testAssemblyFilePath)
{
var result = new CoverageAnalysisResult {
coverageByTestAssembly = coverageByTestAssembly
};
result.coverageByTestAssembly.Add(testAssemblyFilePath, membersAndTheirCoveringTests);
return(result);
}