def test_parses_a_column():
# The trailing [] in schema is what you get if there's a trailing comma in
# the expression.
schema = [['x', 'NUMERICAL'], []]
parsed = cgschema.parse(schema, False)
expected = cgschema.GeneratorSchema(
guess=False, subsample=False, columns=[('x', 'NUMERICAL')],
dep_constraints=[])
assert parsed == expected
def test_parses_dep_constraints():
schema = [
['a', 'NUMERICAL'], ['b', 'NUMERICAL'], ['c', 'NUMERICAL'],
['DEPENDENT', ['a', ',', 'b']],
['INDEPENDENT', ['b', ',', 'c']]]
parsed = cgschema.parse(schema, False)
expected = cgschema.GeneratorSchema(
guess=False, subsample=False,
columns=[('a', 'NUMERICAL'), ('b', 'NUMERICAL'), ('c', 'NUMERICAL')],
dep_constraints=[(['a', 'b'], True), (['b', 'c'], False)])
assert parsed == expected
def test_parses_subsample_off():
schema = [['GUESS', ['*']], ['SUBSAMPLE', ['OFF']]]
parsed = cgschema.parse(schema, True)
expected = cgschema.GeneratorSchema(
guess=True, subsample=False, columns=[], dep_constraints=[])
assert parsed == expected