import unittest

import os.path

from tableaudocumentapi import Datasource, Field

from tableaudocumentapi.field import _find_metadata_record

TEST_ASSET_DIR = os.path.join(

os.path.dirname(__file__),

'assets'

)

TEST_TDS_FILE = os.path.join(

TEST_ASSET_DIR,

'datasource_test.tds'

)

class FieldsUnitTest(unittest.TestCase):

def test_field_throws_if_no_data_passed_in(self):

with self.assertRaises(AttributeError):

Field()

class FindMetaDataRecordEdgeTest(unittest.TestCase):

class MockXmlWithNoFind(object):

def find(self, *args, **kwargs):

return None

def test_find_metadata_record_returns_none(self):

self.assertIsNone(_find_metadata_record(self.MockXmlWithNoFind(), 'foo'))