/// <summary>
/// Calculate number of fixed bugs were fixed in revision or before it.
/// </summary>
/// <param name="code"></param>
/// <param name="revision"></param>
/// <returns></returns>
public static int CalculateNumberOfDefects(this CodeBlockSelectionExpression code, string revision)
{
return(code.ModifiedBy()
.Modifications().ContainCodeBlocks()
.Commits().TillRevision(revision).ContainModifications()
.BugFixes().InCommits().Count());
}
/// <summary>
/// Calculates traditional defect density for specified code.
/// Total code size is LOC at the moment
/// (added code minus removed code).
/// </summary>
/// <param name="code">Code set to calc metric for.</param>
/// <returns>Defect density.</returns>
public static double CalculateTraditionalDefectDensity(this CodeBlockSelectionExpression code)
{
code = code.Added().Fixed();
return(CalculateDefectDensity(
code.CalculateLOC() + code.ModifiedBy().Deleted().CalculateLOC(),
code.CalculateNumberOfDefects()
));
}
/// <summary>
/// Calculate number of fixed bugs in specified code
/// </summary>
public static int CalculateNumberOfDefects(this CodeBlockSelectionExpression code)
{
return(code.ModifiedBy()
.Modifications()
.ContainCodeBlocks()
.Commits()
.ContainModifications()
.AreBugFixes()
.Count());
}
public static double CalculateDefectCodeSize(this CodeBlockSelectionExpression code)
{
return(-code.ModifiedBy().InBugFixes().CalculateLOC());
}