Ensure case is normalized on Windows when comparing paths from XML coverage report #100
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This fixes a subtle problem on Windows, which is case-preserving but case-insensitive.
Depending from where the user executed the coverage command to produce the XML file, the
<sources>
tag might contain a different case in the drive letter:w:\foo\bar
vsW:\foo\bar
(note the case of the first letter). On Windows both paths should be considered the same.This patch calls the
os.path.normcase
function, which changes all paths to lower-case on Windows and is a noop on Linux.I experienced this problem myself and with this patch this fixes the issue for me.