public static CoverturaReport ReadReport(AbsolutePath path)
{
var doc = XDocument.Load(path);
var report = new CoverturaReport();
// get coverage element
var coverage = doc.Descendants("coverage").First();
report.LineRate = decimal.Parse(coverage.Attribute("line-rate").Value);
report.BranchRate = decimal.Parse(coverage.Attribute("branch-rate").Value);
report.LinesCovered = int.Parse(coverage.Attribute("lines-covered").Value);
report.LinesValid = int.Parse(coverage.Attribute("lines-valid").Value);
report.BranchesCovered = int.Parse(coverage.Attribute("branches-covered").Value);
report.BranchesValid = int.Parse(coverage.Attribute("branches-valid").Value);
report.Complexity = int.Parse(coverage.Attribute("complexity").Value);
report.Packages = coverage
.Descendants("packages")
.SelectMany(x => x.Descendants("package"))
.Select(packageEle => new CoverturaReport.Package
{
Name = packageEle.Attribute("name").Value,
LineRate = decimal.Parse(packageEle.Attribute("line-rate").Value),
BranchRate = decimal.Parse(packageEle.Attribute("branch-rate").Value),
Complexity = int.Parse(packageEle.Attribute("complexity").Value),
Classes = packageEle
.Descendants("classes")
.SelectMany(x => x.Descendants("class"))
.Select(classEle =>
{
var lineHits = classEle.Descendants("lines")
.First()
.Descendants("line")
.Select(x => int.Parse(x.Attribute("hits").Value) > 0)
.ToList();
return(new CoverturaReport.ClassDetails()
{
Name = classEle.Attribute("name").Value,
Filename = classEle.Attribute("filename").Value,
LineRate = decimal.Parse(classEle.Attribute("line-rate").Value),
BranchRate = decimal.Parse(classEle.Attribute("branch-rate").Value),
Complexity = int.Parse(classEle.Attribute("complexity").Value),
LinesCovered = lineHits.Count,
LinesValid = lineHits.Count(x => x),
});
})
.ToDictionary(x => $"{x.Filename}_{x.Name}", x => x),
})
.ToDictionary(x => x.Name, x => x);
return(report);
}
public static CoverturaReportComparison Compare(CoverturaReport oldReport, CoverturaReport newReport)
{
var comparison = new CoverturaReportComparison
{
Old = oldReport,
New = newReport,
LineCoverageChange = decimal.Round(newReport.LineRate - oldReport.LineRate, decimals: 2),
BranchCoverageChange = decimal.Round(newReport.BranchRate - oldReport.BranchRate, decimals: 2),
ComplexityChange = newReport.Complexity - oldReport.Complexity,
};
var matchedPackages = new Dictionary <string, CoverturaReportComparison.PackageChanges>();
foreach (var kvp in oldReport.Packages)
{
var oldPackage = kvp.Value;
// try and find package in other report
if (!newReport.Packages.TryGetValue(kvp.Key, out var newPackage))
{
// package was removed
comparison.RemovedPackages.Add(oldPackage);
continue;
}
// do class-level comparison
var changes = new CoverturaReportComparison.PackageChanges
{
Old = oldPackage,
New = newPackage,
LineCoverageChange = decimal.Round(newPackage.LineRate - oldPackage.LineRate, decimals: 2),
BranchCoverageChange = decimal.Round(newPackage.BranchRate - oldPackage.BranchRate, decimals: 2),
ComplexityChange = newPackage.Complexity - oldPackage.Complexity,
};
foreach (var classKvp in oldPackage.Classes)
{
var oldClass = classKvp.Value;
if (!newPackage.Classes.TryGetValue(classKvp.Key, out var newClass))
{
changes.RemovedClasses.Add(oldClass);
continue;
}
var changeSummary = new CoverturaReportComparison.ClassChanges
{
Name = oldClass.Name,
Filename = oldClass.Filename,
LineCoverageChange = decimal.Round(newClass.LineRate - oldClass.LineRate, decimals: 2),
BranchCoverageChange = decimal.Round(newClass.BranchRate - oldClass.BranchRate, decimals: 2),
ComplexityChange = newClass.Complexity - oldClass.Complexity,
};
changeSummary.IsSignificantChange = Math.Abs(changeSummary.LineCoverageChange) > SignificantChangeThreshold ||
Math.Abs(changeSummary.BranchCoverageChange) > SignificantChangeThreshold;
changes.ClassChanges[classKvp.Key] = changeSummary;
}
changes.NewClasses =
newPackage.Classes
.Where(kvp => !oldPackage.Classes.ContainsKey(kvp.Key))
.Select(kvp => kvp.Value)
.ToList();
matchedPackages.Add(kvp.Key, changes);
}
comparison.MatchedPackages = matchedPackages.Values.ToList();
comparison.NewPackages =
newReport.Packages
.Where(kvp => !matchedPackages.ContainsKey(kvp.Key))
.Select(kvp => kvp.Value)
.ToList();
return(comparison);
}