def test_guess_schema():
for department in ('engineering', 'sales', 'marketing'):
sub_path = os.path.join(path, department)
os.mkdir(sub_path)
with open(os.path.join(sub_path, 'data.csv'), 'w') as f:
f.write('column1, column2, column3\n')
for x in range(1000):
f.write('a, "b", 1\n')
adapter = DirAdapter(
employees=dict(root_dir=path, pattern="{department}", decode="auto"))
schema = adapter.schema('employees')
