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import warnings
from agate import Table
from agate.data_types import Boolean, Date, DateTime, Number, Text, TimeDelta
from agate.testcase import AgateTestCase
from agate.type_tester import TypeTester
class TestFromCSV(AgateTestCase):
def setUp(self):
self.rows = (
(1, 'a', True, '11/4/2015', '11/4/2015 12:22 PM', '4:15'),
(2, '👍', False, '11/5/2015', '11/4/2015 12:45 PM', '6:18'),
(None, 'b', None, None, None, None)
)
self.column_names = [
'number', 'text', 'boolean', 'date', 'datetime', 'timedelta'
]
self.column_types = [
Number(), Text(), Boolean(), Date(), DateTime(), TimeDelta()
]
def test_from_csv(self):
table1 = Table(self.rows, self.column_names, self.column_types)
table2 = Table.from_csv('examples/test.csv')
self.assertColumnNames(table2, table1.column_names)
self.assertColumnTypes(table2, [Number, Text, Boolean, Date, DateTime, TimeDelta])
self.assertRows(table2, table1.rows)
def test_from_csv_crlf(self):
table1 = Table(self.rows, self.column_names, self.column_types)
table2 = Table.from_csv('examples/test_crlf.csv')
self.assertColumnNames(table2, table1.column_names)
self.assertColumnTypes(table2, [Number, Text, Boolean, Date, DateTime, TimeDelta])
self.assertRows(table2, table1.rows)
def test_from_csv_cr(self):
table1 = Table(self.rows, self.column_names, self.column_types)
table2 = Table.from_csv('examples/test_cr.csv')
self.assertColumnNames(table2, table1.column_names)
self.assertColumnTypes(table2, [Number, Text, Boolean, Date, DateTime, TimeDelta])
self.assertRows(table2, table1.rows)
def test_from_csv_file_like_object(self):
table1 = Table(self.rows, self.column_names, self.column_types)
f = open('examples/test.csv', encoding='utf-8')
table2 = Table.from_csv(f)
f.close()
self.assertColumnNames(table2, table1.column_names)
self.assertColumnTypes(table2, [Number, Text, Boolean, Date, DateTime, TimeDelta])
self.assertRows(table2, table1.rows)
def test_from_csv_type_tester(self):
tester = TypeTester(force={
'number': Text()
})
table = Table.from_csv('examples/test.csv', column_types=tester)
self.assertColumnTypes(table, [Text, Text, Boolean, Date, DateTime, TimeDelta])
def test_from_csv_no_type_tester(self):
tester = TypeTester(limit=0)
table = Table.from_csv('examples/test.csv', column_types=tester)
self.assertColumnTypes(table, [Text, Text, Text, Text, Text, Text])
def test_from_csv_no_header(self):
warnings.simplefilter('ignore')
try:
table = Table.from_csv('examples/test_no_header.csv', header=False)
finally:
warnings.resetwarnings()
self.assertColumnNames(table, ['a', 'b', 'c', 'd', 'e', 'f'])
self.assertColumnTypes(table, [Number, Text, Boolean, Date, DateTime, TimeDelta])
def test_from_csv_no_header_columns(self):
table = Table.from_csv('examples/test_no_header.csv', self.column_names, header=False)
self.assertColumnNames(table, self.column_names)
self.assertColumnTypes(table, [Number, Text, Boolean, Date, DateTime, TimeDelta])
def test_from_csv_sniff_limit_0(self):
table2 = Table.from_csv('examples/test_csv_sniff.csv', sniff_limit=0)
self.assertColumnNames(table2, ['number|text|boolean|date|datetime|timedelta'])
self.assertColumnTypes(table2, [Text])
def test_from_csv_sniff_limit_200(self):
table1 = Table(self.rows, self.column_names, self.column_types)
table2 = Table.from_csv('examples/test_csv_sniff.csv', sniff_limit=200)
self.assertColumnNames(table2, table1.column_names)
self.assertColumnTypes(table2, [Number, Text, Boolean, Date, DateTime, TimeDelta])
self.assertRows(table2, table1.rows)
def test_from_csv_sniff_limit_none(self):
table1 = Table(self.rows, self.column_names, self.column_types)
table2 = Table.from_csv('examples/test_csv_sniff.csv', sniff_limit=None)
self.assertColumnNames(table2, table1.column_names)
self.assertColumnTypes(table2, [Number, Text, Boolean, Date, DateTime, TimeDelta])
self.assertRows(table2, table1.rows)
def test_from_csv_skip_lines(self):
warnings.simplefilter('ignore')
try:
table1 = Table(self.rows[1:], column_types=self.column_types)
table2 = Table.from_csv('examples/test.csv', header=False, skip_lines=2)
finally:
warnings.resetwarnings()
self.assertColumnNames(table2, table1.column_names)
self.assertColumnTypes(table2, [Number, Text, Boolean, Date, DateTime, TimeDelta])
self.assertRows(table2, table1.rows)
def test_from_csv_skip_lines_crlf(self):
warnings.simplefilter('ignore')
try:
table1 = Table(self.rows[1:], column_types=self.column_types)
table2 = Table.from_csv('examples/test_crlf.csv', header=False, skip_lines=2)
finally:
warnings.resetwarnings()
self.assertColumnNames(table2, table1.column_names)
self.assertColumnTypes(table2, [Number, Text, Boolean, Date, DateTime, TimeDelta])
self.assertRows(table2, table1.rows)
def test_from_csv_skip_lines_cr(self):
warnings.simplefilter('ignore')
try:
table1 = Table(self.rows[1:], column_types=self.column_types)
table2 = Table.from_csv('examples/test_cr.csv', header=False, skip_lines=2)
finally:
warnings.resetwarnings()
self.assertColumnNames(table2, table1.column_names)
self.assertColumnTypes(table2, [Number, Text, Boolean, Date, DateTime, TimeDelta])
self.assertRows(table2, table1.rows)
def test_from_csv_row_limit(self):
table1 = Table(self.rows[:2], self.column_names, self.column_types)
table2 = Table.from_csv('examples/test.csv', row_limit=2)
self.assertColumnNames(table2, table1.column_names)
self.assertColumnTypes(table2, [Number, Text, Boolean, Date, DateTime, TimeDelta])
self.assertRows(table2, table1.rows)
def test_from_csv_row_limit_no_header_columns(self):
table1 = Table(self.rows[:2], self.column_names, self.column_types)
table2 = Table.from_csv('examples/test_no_header.csv', self.column_names, header=False, row_limit=2)
self.assertColumnNames(table2, table1.column_names)
self.assertColumnTypes(table2, [Number, Text, Boolean, Date, DateTime, TimeDelta])
self.assertRows(table2, table1.rows)
def test_from_csv_row_limit_too_high(self):
table1 = Table(self.rows, self.column_names, self.column_types)
table2 = Table.from_csv('examples/test.csv', row_limit=200)
self.assertColumnNames(table2, table1.column_names)
self.assertColumnTypes(table2, [Number, Text, Boolean, Date, DateTime, TimeDelta])
self.assertRows(table2, table1.rows)
def test_from_csv_empty(self):
table = Table.from_csv('examples/empty.csv')
self.assertColumnNames(table, [])
self.assertColumnTypes(table, [])
self.assertRows(table, [])
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