def test_add_readme(path=None):
ds = Dataset(path).create(force=True)
ds.save()
ds.aggregate_metadata()
assert_repo_status(ds.path)
assert_status('ok', ds.add_readme())
# should use default name
content = open(opj(path, 'README.md')).read()
ok_startswith(
content, """\
# Dataset "demo_ds"
this is for play
### Authors
- Betty
- Tom
### License
PDDL
## General information
This is a DataLad dataset (id: {id}).
""".format(id=ds.id))
# make sure that central README references are present
assert_in(
"""More information on how to install DataLad and [how to install](http://handbook.datalad.org/en/latest/intro/installation.html)
it can be found in the [DataLad Handbook](https://handbook.datalad.org/en/latest/index.html).
""", content)
# no unexpectedly long lines
assert all([len(l) < 160 for l in content.splitlines()])
# should skip on re-run
assert_status('notneeded', ds.add_readme())
