def test_union_column_names():
"""Test that Union's column_names property is accurate"""
union = Table("events.calls_20160101").union(
Table("events.calls_20160102"))
assert union.head(0).columns.tolist() == union.column_names
def test_table_column_names(columns):
"""Test that column_names property matches head(0) for tables"""
t = Table("events.calls", columns=columns)
assert t.head(0).columns.tolist() == t.column_names