Three dflit_core tests fails

[mtelka]

I'm running tests for dflit_core 2.3.0.1 and three of them failed:

=================================== FAILURES ===================================
____________________________ test_prepare_metadata _____________________________

tmp_path = '/tmp/pytest-of-marcel/pytest-57/test_prepare_metadata0'

    def test_prepare_metadata(tmp_path):
        tmp_path = str(tmp_path)
        dist_info = build_thyself.prepare_metadata_for_build_wheel(tmp_path)
    
        assert dist_info.endswith('.dist-info')
>       assert dist_info.startswith('flit_core')
E       AssertionError: assert False
E        +  where False = <built-in method startswith of str object at 0x7fffac4ba6c0>('flit_core')
E        +    where <built-in method startswith of str object at 0x7fffac4ba6c0> = 'dflit_core-2.3.0.1.dist-info'.startswith

flit_core/tests/test_build_thyself.py:29: AssertionError
__________________________________ test_wheel __________________________________

tmp_path = '/tmp/pytest-of-marcel/pytest-57/test_wheel0', cwd_project = None

    def test_wheel(tmp_path, cwd_project):
        tmp_path = str(tmp_path)
        filename = build_thyself.build_wheel(tmp_path)
    
        assert filename.endswith('.whl')
>       assert filename.startswith('flit_core')
E       AssertionError: assert False
E        +  where False = <built-in method startswith of str object at 0x7fffac451210>('flit_core')
E        +    where <built-in method startswith of str object at 0x7fffac451210> = 'dflit_core-2.3.0.1-py2.py3-none-any.whl'.startswith

flit_core/tests/test_build_thyself.py:42: AssertionError
__________________________________ test_sdist __________________________________

tmp_path = '/tmp/pytest-of-marcel/pytest-57/test_sdist0', cwd_project = None

    def test_sdist(tmp_path, cwd_project):
        tmp_path = str(tmp_path)
        filename = build_thyself.build_sdist(tmp_path)
    
        assert filename.endswith('.tar.gz')
>       assert filename.startswith('flit_core')
E       AssertionError: assert False
E        +  where False = <built-in method startswith of str object at 0x7fffac53f530>('flit_core')
E        +    where <built-in method startswith of str object at 0x7fffac53f530> = 'dflit_core-2.3.0.1.tar.gz'.startswith

flit_core/tests/test_build_thyself.py:53: AssertionError
=========================== short test summary info ============================
FAILED flit_core/tests/test_build_thyself.py::test_prepare_metadata - Asserti...
FAILED flit_core/tests/test_build_thyself.py::test_wheel - AssertionError: as...
FAILED flit_core/tests/test_build_thyself.py::test_sdist - AssertionError: as...
========================= 3 failed, 42 passed in 0.57s =========================

I found that when I replace flit_core by dflit_core in asserts then all tests pass.