forked from wireservice/csvkit
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test_table.py
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test_table.py
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#!/usr/bin/env python
from cStringIO import StringIO
import datetime
import unittest
from csvkit import table
class TestColumn(unittest.TestCase):
def setUp(self):
self.c = table.Column(0, u'test', [u'test', u'column', None])
self.c2 = table.Column(0, u'test', [0, 1, 42], normal_type=int)
self.c3 = table.Column(0, u'test', [datetime.datetime(2007, 1, 1, 12, 13, 14)], normal_type=datetime.datetime)
def test_create_column(self):
self.assertEqual(type(self.c), table.Column)
self.assertEqual(self.c.order, 0)
self.assertEqual(self.c.name, u'test')
self.assertEqual(self.c.type, unicode)
self.assertEqual(self.c, [u'test', u'column', None])
def test_slice(self):
self.assertEqual(self.c[1:], [u'column', None])
def test_access(self):
self.assertEqual(self.c[-1], None)
def test_out_of_bounds(self):
self.assertEqual(self.c[27], None)
def test_has_nulls(self):
self.assertEqual(self.c.has_nulls(), True)
def test_no_null(self):
self.assertEqual(self.c2.has_nulls(), False)
def test_max_length(self):
self.assertEqual(self.c.max_length(), 6)
self.assertEqual(self.c2.max_length(), 0)
self.assertEqual(self.c3.max_length(), 0)
class TestTable(unittest.TestCase):
def test_from_csv(self):
with open('examples/testfixed_converted.csv', 'r') as f:
t = table.Table.from_csv(f)
self.assertEqual(type(t), table.Table)
self.assertEqual(type(t[0]), table.Column)
self.assertEqual(len(t), 8)
def test_to_csv(self):
with open('examples/testfixed_converted.csv', 'r') as f:
contents = f.read()
f.seek(0)
o = StringIO()
table.Table.from_csv(f).to_csv(o)
conversion = o.getvalue()
o.close()
self.assertEqual(contents, conversion)
def test_table_append(self):
c = table.Column(0, u'test', [u'test', u'column', u''])
t = table.Table()
t.append(c)
self.assertEqual(len(t), 1)
self.assertEqual(t[0], c)
def test_table_append_duplicate_name(self):
c = table.Column(0, u'test', [u'test', u'column', u''])
c2 = table.Column(0, u'test', [u'test', u'column', u''])
c3 = table.Column(0, u'test', [u'test', u'column', u''])
t = table.Table()
t.append(c)
t.append(c2)
t.append(c3)
self.assertEqual(t[0].name, 'test')
self.assertEqual(t[1].name, 'test_2')
self.assertEqual(t[2].name, 'test_3')
def test_table_insert(self):
c = table.Column(0, u'test', [u'test', u'column', u''])
c2 = table.Column(0, u'test', [u'test', u'column', u''])
t = table.Table([c])
t.insert(0, c2)
self.assertEqual(len(t), 2)
self.assertEqual(t[0], c2)
self.assertEqual(t[1], c)
self.assertEqual(t[0].order, 0)
self.assertEqual(t[1].order, 1)
def test_table_extend(self):
c = table.Column(0, u'test', [u'test', u'column', u''])
c2 = table.Column(0, u'test', [u'test', u'column', u''])
c3 = table.Column(0, u'test', [u'test', u'column', u''])
t = table.Table([c])
t.extend([c2, c3])
self.assertEqual(len(t), 3)
self.assertEqual(t[0], c)
self.assertEqual(t[1], c2)
self.assertEqual(t[2], c3)
self.assertEqual(t[0].order, 0)
self.assertEqual(t[1].order, 1)
self.assertEqual(t[2].order, 2)
def test_table_remove(self):
c = table.Column(0, u'test', [u'test', u'column', u''])
c2 = table.Column(0, u'test', [u'test', u'column', u''])
c3 = table.Column(0, u'test', [u'test', u'column', u''])
t = table.Table([c, c2, c3])
t.remove(c2)
self.assertEqual(len(t), 2)
self.assertEqual(t[0], c)
self.assertEqual(t[1], c3)
self.assertEqual(t[0].order, 0)
self.assertEqual(t[1].order, 1)
def test_table_sort(self):
t = table.Table()
self.assertRaises(NotImplementedError, t.sort)
def test_table_reverse(self):
t = table.Table()
self.assertRaises(NotImplementedError, t.reverse)
def test_table_count_rows(self):
c = table.Column(0, u'test', [u'test', u'column', u''])
c_short = table.Column(0, u'test', [u'test'])
c_long = table.Column(0, u'test', [u'', u'', u'', u''])
t = table.Table()
self.assertEqual(t.count_rows(), 0)
t.append(c)
self.assertEqual(t.count_rows(), 3)
t.append(c_short)
self.assertEqual(t.count_rows(), 3)
t.append(c_long)
self.assertEqual(t.count_rows(), 4)
def test_table_row(self):
c = table.Column(0, u'test', [u'test', u'column', u''])
c2 = table.Column(0, u'test', [u'test', u'column', u''])
c3 = table.Column(0, u'test', [u'test', u'column', u''])
t = table.Table([c, c2, c3])
self.assertEqual(t.row(1), [u'column', u'column', u'column'])
def test_table_row_out_of_bounds(self):
c = table.Column(0, u'test', [u'test', u'column', u''])
c2 = table.Column(0, u'test', [u'test', u'column', u''])
c3 = table.Column(0, u'test', [u'test', u'column', u''])
t = table.Table([c, c2, c3])
self.assertRaises(IndexError, t.row, -1)
self.assertRaises(IndexError, t.row, 3)
def test_table_uneven_columns(self):
c = table.Column(0, u'test', [u'test', u'column', u''])
c_short = table.Column(0, u'test', [u'test'])
c_long = table.Column(0, u'test', [u'', u'', u'', u'way out here'])
t = table.Table([c, c_short, c_long])
self.assertEqual(t.row(0), [u'test', u'test', None])
self.assertEqual(t.row(1), [u'column', None, None])
self.assertEqual(t.row(2), [None, None, None])
self.assertEqual(t.row(3), [None, None, u'way out here'])