def testIsEmpty(tmpdir, bidsArchive4D):
datasetRoot = Path(tmpdir, "bids-archive")
archive = BidsArchive(datasetRoot)
assert archive is not None
assert archive.isEmpty()
assert not bidsArchive4D.isEmpty()
def testEmptyArchiveAppend(validBidsI, imageMetadata, tmpdir):
# Create in root with no BIDS-I, then append to make non-empty archive
datasetRoot = Path(tmpdir, testEmptyArchiveAppend.__name__)
archive = BidsArchive(datasetRoot)
archive.appendIncremental(validBidsI)
assert not archive.isEmpty()
assert archiveHasMetadata(archive, imageMetadata)
assert appendDataMatches(archive, validBidsI)
assert isValidBidsArchive(datasetRoot)
