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import unittest
from typing import List
from ...views.upload import builders
from ...views.upload.data import TextData
from ...views.upload.exception import FileParseException
from ...views.upload.label import CategoryLabel
class TestColumnBuilder(unittest.TestCase):
def assert_record(self, actual, expected):
self.assertEqual(actual.data.text, expected['data'])
self.assertEqual(actual.label, expected['label'])
def create_record(self, row, data_column: builders.DataColumn, label_columns: List[builders.LabelColumn]):
builder = builders.ColumnBuilder(
data_column=data_column,
label_columns=label_columns
)
return builder.build(row, filename='', line_num=1)
def test_can_load_default_column_names(self):
row = {'text': 'Text', 'label': 'Label'}
data_column = builders.DataColumn('text', TextData)
label_columns = [builders.LabelColumn('label', CategoryLabel)]
actual = self.create_record(row, data_column, label_columns)
expected = {'data': 'Text', 'label': [{'text': 'Label'}]}
self.assert_record(actual, expected)
def test_can_specify_any_column_names(self):
row = {'body': 'Text', 'star': 5}
data_column = builders.DataColumn('body', TextData)
label_columns = [builders.LabelColumn('star', CategoryLabel)]
actual = self.create_record(row, data_column, label_columns)
expected = {'data': 'Text', 'label': [{'text': '5'}]}
self.assert_record(actual, expected)
def test_can_load_only_text_column(self):
row = {'text': 'Text', 'label': None}
data_column = builders.DataColumn('text', TextData)
label_columns = [builders.LabelColumn('label', CategoryLabel)]
actual = self.create_record(row, data_column, label_columns)
expected = {'data': 'Text', 'label': []}
self.assert_record(actual, expected)
def test_disallow_no_data_column(self):
row = {'label': 'Label'}
data_column = builders.DataColumn('text', TextData)
label_columns = [builders.LabelColumn('label', CategoryLabel)]
with self.assertRaises(FileParseException):
self.create_record(row, data_column, label_columns)
def test_disallow_empty_text(self):
row = {'text': '', 'label': 'Label'}
data_column = builders.DataColumn('text', TextData)
label_columns = [builders.LabelColumn('label', CategoryLabel)]
with self.assertRaises(FileParseException):
self.create_record(row, data_column, label_columns)
def test_can_load_int_as_text(self):
row = {'text': 5, 'label': 'Label'}
data_column = builders.DataColumn('text', TextData)
label_columns = [builders.LabelColumn('label', CategoryLabel)]
actual = self.create_record(row, data_column, label_columns)
expected = {'data': '5', 'label': [{'text': 'Label'}]}
self.assert_record(actual, expected)