Incomplete file path in XML report

Originally reported by Anonymous

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Hi there, we are relying on the XML coverage report generated in coverage.xml for our analysis.

In previous versions of coverage, when we run the command such as:

$ py.test --cov directory_one --cov directory_two --cov-report xml tests

We would get a coverage.xml file with sources listed as:

<sources>
	<source>/path/to/directory_one</source>
	<source>/path/to/directory_two</source>
</sources>

And each file would be reported in a line such as this:

<class branch-rate="0" complexity="0" filename="directory_one/__init__.py" line-rate="1" name="__init__.py">

Now in coverage 4.4 the first level of the directory path is missing and we get only:

<class branch-rate="0" complexity="0" filename="__init__.py" line-rate="1" name="__init__.py">

Is there any way to get the previous behaviour?

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• Bitbucket: https://bitbucket.org/ned/coveragepy/issue/578

[jacobwegner]

@nedbat I ran across this issue and believe I’ve found a useful workaround.

https://bitbucket.org/suriya/coverage-xml-bug/pull-requests/1/demonstrate-a-fix-to-coverage-xml-bug/diff

Changing from specifying the modules in [sources] to directory paths in [include] ensures that the path to each file is output in coverage.xml:

using [source]:

<class branch-rate="0" complexity="0" filename="hello.py" line-rate="1" name="hello.py">
<class branch-rate="0" complexity="0" filename="baz/hello.py" line-rate="1" name="hello.py">

using [include]:

<class branch-rate="0" complexity="0" filename="bar/hello.py" line-rate="1" name="hello.py">
<class branch-rate="0" complexity="0" filename="bar/baz/hello.py" line-rate="1" name="hello.py">
<class branch-rate="0" complexity="0" filename="foo/hello.py" line-rate="1" name="hello.py">

I’m not sure how this might need to be worded in the project’s documentation, but will try and take a stab at it if you think that’d be useful.

[drazisil]

I spent the weekend going crazy with pytest-cov and Codecov.

I can confirm that Codecov walks the filename= tags and without a path in them there is not way for it to match the coverage to a file.

FYI, the generated coverage.xml file says it uses https://raw.githubusercontent.com/cobertura/web/master/htdocs/xml/coverage-04.dtd, if that helps any, @blueyed (It’s very bare bones)