mirror of https://github.com/python/cpython
709 lines
26 KiB
Python
709 lines
26 KiB
Python
# -*- coding: iso-8859-1 -*-
|
||
# Copyright (C) 2001,2002 Python Software Foundation
|
||
# csv package unit tests
|
||
|
||
import sys
|
||
import unittest
|
||
from StringIO import StringIO
|
||
import csv
|
||
import gc
|
||
from test import test_support
|
||
|
||
class Test_Csv(unittest.TestCase):
|
||
"""
|
||
Test the underlying C csv parser in ways that are not appropriate
|
||
from the high level interface. Further tests of this nature are done
|
||
in TestDialectRegistry.
|
||
"""
|
||
def test_reader_arg_valid(self):
|
||
self.assertRaises(TypeError, csv.reader)
|
||
self.assertRaises(TypeError, csv.reader, None)
|
||
self.assertRaises(AttributeError, csv.reader, [], bad_attr = 0)
|
||
self.assertRaises(csv.Error, csv.reader, [], 'foo')
|
||
class BadClass:
|
||
def __init__(self):
|
||
raise IOError
|
||
self.assertRaises(IOError, csv.reader, [], BadClass)
|
||
self.assertRaises(TypeError, csv.reader, [], None)
|
||
class BadDialect:
|
||
bad_attr = 0
|
||
self.assertRaises(AttributeError, csv.reader, [], BadDialect)
|
||
|
||
def test_writer_arg_valid(self):
|
||
self.assertRaises(TypeError, csv.writer)
|
||
self.assertRaises(TypeError, csv.writer, None)
|
||
self.assertRaises(AttributeError, csv.writer, StringIO(), bad_attr = 0)
|
||
|
||
def _test_attrs(self, obj):
|
||
self.assertEqual(obj.dialect.delimiter, ',')
|
||
obj.dialect.delimiter = '\t'
|
||
self.assertEqual(obj.dialect.delimiter, '\t')
|
||
self.assertRaises(TypeError, delattr, obj.dialect, 'delimiter')
|
||
self.assertRaises(TypeError, setattr, obj.dialect,
|
||
'lineterminator', None)
|
||
obj.dialect.escapechar = None
|
||
self.assertEqual(obj.dialect.escapechar, None)
|
||
self.assertRaises(TypeError, delattr, obj.dialect, 'quoting')
|
||
self.assertRaises(TypeError, setattr, obj.dialect, 'quoting', None)
|
||
obj.dialect.quoting = csv.QUOTE_MINIMAL
|
||
self.assertEqual(obj.dialect.quoting, csv.QUOTE_MINIMAL)
|
||
|
||
def test_reader_attrs(self):
|
||
self._test_attrs(csv.reader([]))
|
||
|
||
def test_writer_attrs(self):
|
||
self._test_attrs(csv.writer(StringIO()))
|
||
|
||
def _write_test(self, fields, expect, **kwargs):
|
||
fileobj = StringIO()
|
||
writer = csv.writer(fileobj, **kwargs)
|
||
writer.writerow(fields)
|
||
self.assertEqual(fileobj.getvalue(),
|
||
expect + writer.dialect.lineterminator)
|
||
|
||
def test_write_arg_valid(self):
|
||
self.assertRaises(csv.Error, self._write_test, None, '')
|
||
self._write_test((), '')
|
||
self._write_test([None], '""')
|
||
self.assertRaises(csv.Error, self._write_test,
|
||
[None], None, quoting = csv.QUOTE_NONE)
|
||
# Check that exceptions are passed up the chain
|
||
class BadList:
|
||
def __len__(self):
|
||
return 10;
|
||
def __getitem__(self, i):
|
||
if i > 2:
|
||
raise IOError
|
||
self.assertRaises(IOError, self._write_test, BadList(), '')
|
||
class BadItem:
|
||
def __str__(self):
|
||
raise IOError
|
||
self.assertRaises(IOError, self._write_test, [BadItem()], '')
|
||
|
||
def test_write_bigfield(self):
|
||
# This exercises the buffer realloc functionality
|
||
bigstring = 'X' * 50000
|
||
self._write_test([bigstring,bigstring], '%s,%s' % \
|
||
(bigstring, bigstring))
|
||
|
||
def test_write_quoting(self):
|
||
self._write_test(['a','1','p,q'], 'a,1,"p,q"')
|
||
self.assertRaises(csv.Error,
|
||
self._write_test,
|
||
['a','1','p,q'], 'a,1,"p,q"',
|
||
quoting = csv.QUOTE_NONE)
|
||
self._write_test(['a','1','p,q'], 'a,1,"p,q"',
|
||
quoting = csv.QUOTE_MINIMAL)
|
||
self._write_test(['a','1','p,q'], '"a",1,"p,q"',
|
||
quoting = csv.QUOTE_NONNUMERIC)
|
||
self._write_test(['a','1','p,q'], '"a","1","p,q"',
|
||
quoting = csv.QUOTE_ALL)
|
||
|
||
def test_write_escape(self):
|
||
self._write_test(['a','1','p,q'], 'a,1,"p,q"',
|
||
escapechar='\\')
|
||
# FAILED - needs to be fixed [am]:
|
||
# self._write_test(['a','1','p,"q"'], 'a,1,"p,\\"q\\"',
|
||
# escapechar='\\', doublequote = 0)
|
||
self._write_test(['a','1','p,q'], 'a,1,p\\,q',
|
||
escapechar='\\', quoting = csv.QUOTE_NONE)
|
||
|
||
def test_writerows(self):
|
||
class BrokenFile:
|
||
def write(self, buf):
|
||
raise IOError
|
||
writer = csv.writer(BrokenFile())
|
||
self.assertRaises(IOError, writer.writerows, [['a']])
|
||
fileobj = StringIO()
|
||
writer = csv.writer(fileobj)
|
||
self.assertRaises(TypeError, writer.writerows, None)
|
||
writer.writerows([['a','b'],['c','d']])
|
||
self.assertEqual(fileobj.getvalue(), "a,b\r\nc,d\r\n")
|
||
|
||
def _read_test(self, input, expect, **kwargs):
|
||
reader = csv.reader(input, **kwargs)
|
||
result = list(reader)
|
||
self.assertEqual(result, expect)
|
||
|
||
def test_read_oddinputs(self):
|
||
self._read_test([], [])
|
||
self._read_test([''], [[]])
|
||
self.assertRaises(csv.Error, self._read_test,
|
||
['"ab"c'], None, strict = 1)
|
||
# cannot handle null bytes for the moment
|
||
self.assertRaises(csv.Error, self._read_test,
|
||
['ab\0c'], None, strict = 1)
|
||
self._read_test(['"ab"c'], [['abc']], doublequote = 0)
|
||
|
||
def test_read_eol(self):
|
||
self._read_test(['a,b'], [['a','b']])
|
||
self._read_test(['a,b\n'], [['a','b']])
|
||
self._read_test(['a,b\r\n'], [['a','b']])
|
||
self._read_test(['a,b\r'], [['a','b']])
|
||
self.assertRaises(csv.Error, self._read_test, ['a,b\rc,d'], [])
|
||
self.assertRaises(csv.Error, self._read_test, ['a,b\nc,d'], [])
|
||
self.assertRaises(csv.Error, self._read_test, ['a,b\r\nc,d'], [])
|
||
|
||
def test_read_escape(self):
|
||
self._read_test(['a,\\b,c'], [['a', '\\b', 'c']], escapechar='\\')
|
||
self._read_test(['a,b\\,c'], [['a', 'b,c']], escapechar='\\')
|
||
self._read_test(['a,"b\\,c"'], [['a', 'b,c']], escapechar='\\')
|
||
self._read_test(['a,"b,\\c"'], [['a', 'b,\\c']], escapechar='\\')
|
||
self._read_test(['a,"b,c\\""'], [['a', 'b,c"']], escapechar='\\')
|
||
self._read_test(['a,"b,c"\\'], [['a', 'b,c\\']], escapechar='\\')
|
||
|
||
def test_read_bigfield(self):
|
||
# This exercises the buffer realloc functionality
|
||
bigstring = 'X' * 50000
|
||
bigline = '%s,%s' % (bigstring, bigstring)
|
||
self._read_test([bigline], [[bigstring, bigstring]])
|
||
|
||
class TestDialectRegistry(unittest.TestCase):
|
||
def test_registry_badargs(self):
|
||
self.assertRaises(TypeError, csv.list_dialects, None)
|
||
self.assertRaises(TypeError, csv.get_dialect)
|
||
self.assertRaises(csv.Error, csv.get_dialect, None)
|
||
self.assertRaises(csv.Error, csv.get_dialect, "nonesuch")
|
||
self.assertRaises(TypeError, csv.unregister_dialect)
|
||
self.assertRaises(csv.Error, csv.unregister_dialect, None)
|
||
self.assertRaises(csv.Error, csv.unregister_dialect, "nonesuch")
|
||
self.assertRaises(TypeError, csv.register_dialect, None)
|
||
self.assertRaises(TypeError, csv.register_dialect, None, None)
|
||
self.assertRaises(TypeError, csv.register_dialect, "nonesuch", None)
|
||
class bogus:
|
||
def __init__(self):
|
||
raise KeyError
|
||
self.assertRaises(KeyError, csv.register_dialect, "nonesuch", bogus)
|
||
|
||
def test_registry(self):
|
||
class myexceltsv(csv.excel):
|
||
delimiter = "\t"
|
||
name = "myexceltsv"
|
||
expected_dialects = csv.list_dialects() + [name]
|
||
expected_dialects.sort()
|
||
csv.register_dialect(name, myexceltsv)
|
||
try:
|
||
self.failUnless(isinstance(csv.get_dialect(name), myexceltsv))
|
||
got_dialects = csv.list_dialects()
|
||
got_dialects.sort()
|
||
self.assertEqual(expected_dialects, got_dialects)
|
||
finally:
|
||
csv.unregister_dialect(name)
|
||
|
||
def test_incomplete_dialect(self):
|
||
class myexceltsv(csv.Dialect):
|
||
delimiter = "\t"
|
||
self.assertRaises(csv.Error, myexceltsv)
|
||
|
||
def test_space_dialect(self):
|
||
class space(csv.excel):
|
||
delimiter = " "
|
||
quoting = csv.QUOTE_NONE
|
||
escapechar = "\\"
|
||
|
||
s = StringIO("abc def\nc1ccccc1 benzene\n")
|
||
rdr = csv.reader(s, dialect=space())
|
||
self.assertEqual(rdr.next(), ["abc", "def"])
|
||
self.assertEqual(rdr.next(), ["c1ccccc1", "benzene"])
|
||
|
||
def test_dialect_apply(self):
|
||
class testA(csv.excel):
|
||
delimiter = "\t"
|
||
class testB(csv.excel):
|
||
delimiter = ":"
|
||
class testC(csv.excel):
|
||
delimiter = "|"
|
||
|
||
csv.register_dialect('testC', testC)
|
||
try:
|
||
fileobj = StringIO()
|
||
writer = csv.writer(fileobj)
|
||
writer.writerow([1,2,3])
|
||
self.assertEqual(fileobj.getvalue(), "1,2,3\r\n")
|
||
|
||
fileobj = StringIO()
|
||
writer = csv.writer(fileobj, testA)
|
||
writer.writerow([1,2,3])
|
||
self.assertEqual(fileobj.getvalue(), "1\t2\t3\r\n")
|
||
|
||
fileobj = StringIO()
|
||
writer = csv.writer(fileobj, dialect=testB())
|
||
writer.writerow([1,2,3])
|
||
self.assertEqual(fileobj.getvalue(), "1:2:3\r\n")
|
||
|
||
fileobj = StringIO()
|
||
writer = csv.writer(fileobj, dialect='testC')
|
||
writer.writerow([1,2,3])
|
||
self.assertEqual(fileobj.getvalue(), "1|2|3\r\n")
|
||
|
||
fileobj = StringIO()
|
||
writer = csv.writer(fileobj, dialect=testA, delimiter=';')
|
||
writer.writerow([1,2,3])
|
||
self.assertEqual(fileobj.getvalue(), "1;2;3\r\n")
|
||
finally:
|
||
csv.unregister_dialect('testC')
|
||
|
||
def test_bad_dialect(self):
|
||
# Unknown parameter
|
||
self.assertRaises(AttributeError, csv.reader, [], bad_attr = 0)
|
||
# Bad values
|
||
self.assertRaises(TypeError, csv.reader, [], delimiter = None)
|
||
self.assertRaises(TypeError, csv.reader, [], quoting = -1)
|
||
self.assertRaises(TypeError, csv.reader, [], quoting = 100)
|
||
|
||
class TestCsvBase(unittest.TestCase):
|
||
def readerAssertEqual(self, input, expected_result):
|
||
reader = csv.reader(StringIO(input), dialect = self.dialect)
|
||
fields = list(reader)
|
||
self.assertEqual(fields, expected_result)
|
||
|
||
def writerAssertEqual(self, input, expected_result):
|
||
fileobj = StringIO()
|
||
writer = csv.writer(fileobj, dialect = self.dialect)
|
||
writer.writerows(input)
|
||
self.assertEqual(fileobj.getvalue(), expected_result)
|
||
|
||
class TestDialectExcel(TestCsvBase):
|
||
dialect = 'excel'
|
||
|
||
def test_single(self):
|
||
self.readerAssertEqual('abc', [['abc']])
|
||
|
||
def test_simple(self):
|
||
self.readerAssertEqual('1,2,3,4,5', [['1','2','3','4','5']])
|
||
|
||
def test_blankline(self):
|
||
self.readerAssertEqual('', [])
|
||
|
||
def test_empty_fields(self):
|
||
self.readerAssertEqual(',', [['', '']])
|
||
|
||
def test_singlequoted(self):
|
||
self.readerAssertEqual('""', [['']])
|
||
|
||
def test_singlequoted_left_empty(self):
|
||
self.readerAssertEqual('"",', [['','']])
|
||
|
||
def test_singlequoted_right_empty(self):
|
||
self.readerAssertEqual(',""', [['','']])
|
||
|
||
def test_single_quoted_quote(self):
|
||
self.readerAssertEqual('""""', [['"']])
|
||
|
||
def test_quoted_quotes(self):
|
||
self.readerAssertEqual('""""""', [['""']])
|
||
|
||
def test_inline_quote(self):
|
||
self.readerAssertEqual('a""b', [['a""b']])
|
||
|
||
def test_inline_quotes(self):
|
||
self.readerAssertEqual('a"b"c', [['a"b"c']])
|
||
|
||
def test_quotes_and_more(self):
|
||
self.readerAssertEqual('"a"b', [['ab']])
|
||
|
||
def test_lone_quote(self):
|
||
self.readerAssertEqual('a"b', [['a"b']])
|
||
|
||
def test_quote_and_quote(self):
|
||
self.readerAssertEqual('"a" "b"', [['a "b"']])
|
||
|
||
def test_space_and_quote(self):
|
||
self.readerAssertEqual(' "a"', [[' "a"']])
|
||
|
||
def test_quoted(self):
|
||
self.readerAssertEqual('1,2,3,"I think, therefore I am",5,6',
|
||
[['1', '2', '3',
|
||
'I think, therefore I am',
|
||
'5', '6']])
|
||
|
||
def test_quoted_quote(self):
|
||
self.readerAssertEqual('1,2,3,"""I see,"" said the blind man","as he picked up his hammer and saw"',
|
||
[['1', '2', '3',
|
||
'"I see," said the blind man',
|
||
'as he picked up his hammer and saw']])
|
||
|
||
def test_quoted_nl(self):
|
||
input = '''\
|
||
1,2,3,"""I see,""
|
||
said the blind man","as he picked up his
|
||
hammer and saw"
|
||
9,8,7,6'''
|
||
self.readerAssertEqual(input,
|
||
[['1', '2', '3',
|
||
'"I see,"\nsaid the blind man',
|
||
'as he picked up his\nhammer and saw'],
|
||
['9','8','7','6']])
|
||
|
||
def test_dubious_quote(self):
|
||
self.readerAssertEqual('12,12,1",', [['12', '12', '1"', '']])
|
||
|
||
def test_null(self):
|
||
self.writerAssertEqual([], '')
|
||
|
||
def test_single(self):
|
||
self.writerAssertEqual([['abc']], 'abc\r\n')
|
||
|
||
def test_simple(self):
|
||
self.writerAssertEqual([[1, 2, 'abc', 3, 4]], '1,2,abc,3,4\r\n')
|
||
|
||
def test_quotes(self):
|
||
self.writerAssertEqual([[1, 2, 'a"bc"', 3, 4]], '1,2,"a""bc""",3,4\r\n')
|
||
|
||
def test_quote_fieldsep(self):
|
||
self.writerAssertEqual([['abc,def']], '"abc,def"\r\n')
|
||
|
||
def test_newlines(self):
|
||
self.writerAssertEqual([[1, 2, 'a\nbc', 3, 4]], '1,2,"a\nbc",3,4\r\n')
|
||
|
||
class EscapedExcel(csv.excel):
|
||
quoting = csv.QUOTE_NONE
|
||
escapechar = '\\'
|
||
|
||
class TestEscapedExcel(TestCsvBase):
|
||
dialect = EscapedExcel()
|
||
|
||
def test_escape_fieldsep(self):
|
||
self.writerAssertEqual([['abc,def']], 'abc\\,def\r\n')
|
||
|
||
def test_read_escape_fieldsep(self):
|
||
self.readerAssertEqual('abc\\,def\r\n', [['abc,def']])
|
||
|
||
class QuotedEscapedExcel(csv.excel):
|
||
quoting = csv.QUOTE_NONNUMERIC
|
||
escapechar = '\\'
|
||
|
||
class TestQuotedEscapedExcel(TestCsvBase):
|
||
dialect = QuotedEscapedExcel()
|
||
|
||
def test_write_escape_fieldsep(self):
|
||
self.writerAssertEqual([['abc,def']], '"abc,def"\r\n')
|
||
|
||
def test_read_escape_fieldsep(self):
|
||
self.readerAssertEqual('"abc\\,def"\r\n', [['abc,def']])
|
||
|
||
# Disabled, pending support in csv.utils module
|
||
class TestDictFields(unittest.TestCase):
|
||
### "long" means the row is longer than the number of fieldnames
|
||
### "short" means there are fewer elements in the row than fieldnames
|
||
def test_write_simple_dict(self):
|
||
fileobj = StringIO()
|
||
writer = csv.DictWriter(fileobj, fieldnames = ["f1", "f2", "f3"])
|
||
writer.writerow({"f1": 10, "f3": "abc"})
|
||
self.assertEqual(fileobj.getvalue(), "10,,abc\r\n")
|
||
|
||
def test_write_no_fields(self):
|
||
fileobj = StringIO()
|
||
self.assertRaises(TypeError, csv.DictWriter, fileobj)
|
||
|
||
def test_read_dict_fields(self):
|
||
reader = csv.DictReader(StringIO("1,2,abc\r\n"),
|
||
fieldnames=["f1", "f2", "f3"])
|
||
self.assertEqual(reader.next(), {"f1": '1', "f2": '2', "f3": 'abc'})
|
||
|
||
def test_read_long(self):
|
||
reader = csv.DictReader(StringIO("1,2,abc,4,5,6\r\n"),
|
||
fieldnames=["f1", "f2"])
|
||
self.assertEqual(reader.next(), {"f1": '1', "f2": '2',
|
||
None: ["abc", "4", "5", "6"]})
|
||
|
||
def test_read_long_with_rest(self):
|
||
reader = csv.DictReader(StringIO("1,2,abc,4,5,6\r\n"),
|
||
fieldnames=["f1", "f2"], restkey="_rest")
|
||
self.assertEqual(reader.next(), {"f1": '1', "f2": '2',
|
||
"_rest": ["abc", "4", "5", "6"]})
|
||
|
||
def test_read_short(self):
|
||
reader = csv.DictReader(["1,2,abc,4,5,6\r\n","1,2,abc\r\n"],
|
||
fieldnames="1 2 3 4 5 6".split(),
|
||
restval="DEFAULT")
|
||
self.assertEqual(reader.next(), {"1": '1', "2": '2', "3": 'abc',
|
||
"4": '4', "5": '5', "6": '6'})
|
||
self.assertEqual(reader.next(), {"1": '1', "2": '2', "3": 'abc',
|
||
"4": 'DEFAULT', "5": 'DEFAULT',
|
||
"6": 'DEFAULT'})
|
||
|
||
def test_read_multi(self):
|
||
sample = [
|
||
'2147483648,43.0e12,17,abc,def\r\n',
|
||
'147483648,43.0e2,17,abc,def\r\n',
|
||
'47483648,43.0,170,abc,def\r\n'
|
||
]
|
||
|
||
reader = csv.DictReader(sample,
|
||
fieldnames="i1 float i2 s1 s2".split())
|
||
self.assertEqual(reader.next(), {"i1": '2147483648',
|
||
"float": '43.0e12',
|
||
"i2": '17',
|
||
"s1": 'abc',
|
||
"s2": 'def'})
|
||
|
||
def test_read_with_blanks(self):
|
||
reader = csv.DictReader(["1,2,abc,4,5,6\r\n","\r\n",
|
||
"1,2,abc,4,5,6\r\n"],
|
||
fieldnames="1 2 3 4 5 6".split())
|
||
self.assertEqual(reader.next(), {"1": '1', "2": '2', "3": 'abc',
|
||
"4": '4', "5": '5', "6": '6'})
|
||
self.assertEqual(reader.next(), {"1": '1', "2": '2', "3": 'abc',
|
||
"4": '4', "5": '5', "6": '6'})
|
||
|
||
class TestArrayWrites(unittest.TestCase):
|
||
def test_int_write(self):
|
||
import array
|
||
contents = [(20-i) for i in range(20)]
|
||
a = array.array('i', contents)
|
||
fileobj = StringIO()
|
||
writer = csv.writer(fileobj, dialect="excel")
|
||
writer.writerow(a)
|
||
expected = ",".join([str(i) for i in a])+"\r\n"
|
||
self.assertEqual(fileobj.getvalue(), expected)
|
||
|
||
def test_double_write(self):
|
||
import array
|
||
contents = [(20-i)*0.1 for i in range(20)]
|
||
a = array.array('d', contents)
|
||
fileobj = StringIO()
|
||
writer = csv.writer(fileobj, dialect="excel")
|
||
writer.writerow(a)
|
||
expected = ",".join([str(i) for i in a])+"\r\n"
|
||
self.assertEqual(fileobj.getvalue(), expected)
|
||
|
||
def test_float_write(self):
|
||
import array
|
||
contents = [(20-i)*0.1 for i in range(20)]
|
||
a = array.array('f', contents)
|
||
fileobj = StringIO()
|
||
writer = csv.writer(fileobj, dialect="excel")
|
||
writer.writerow(a)
|
||
expected = ",".join([str(i) for i in a])+"\r\n"
|
||
self.assertEqual(fileobj.getvalue(), expected)
|
||
|
||
def test_char_write(self):
|
||
import array, string
|
||
a = array.array('c', string.letters)
|
||
fileobj = StringIO()
|
||
writer = csv.writer(fileobj, dialect="excel")
|
||
writer.writerow(a)
|
||
expected = ",".join(a)+"\r\n"
|
||
self.assertEqual(fileobj.getvalue(), expected)
|
||
|
||
class TestDialectValidity(unittest.TestCase):
|
||
def test_quoting(self):
|
||
class mydialect(csv.Dialect):
|
||
delimiter = ";"
|
||
escapechar = '\\'
|
||
doublequote = False
|
||
skipinitialspace = True
|
||
lineterminator = '\r\n'
|
||
quoting = csv.QUOTE_NONE
|
||
d = mydialect()
|
||
|
||
mydialect.quoting = None
|
||
self.assertRaises(csv.Error, mydialect)
|
||
|
||
mydialect.quoting = csv.QUOTE_NONE
|
||
mydialect.escapechar = None
|
||
self.assertRaises(csv.Error, mydialect)
|
||
|
||
mydialect.doublequote = True
|
||
mydialect.quoting = csv.QUOTE_ALL
|
||
mydialect.quotechar = '"'
|
||
d = mydialect()
|
||
|
||
mydialect.quotechar = "''"
|
||
self.assertRaises(csv.Error, mydialect)
|
||
|
||
mydialect.quotechar = 4
|
||
self.assertRaises(csv.Error, mydialect)
|
||
|
||
def test_delimiter(self):
|
||
class mydialect(csv.Dialect):
|
||
delimiter = ";"
|
||
escapechar = '\\'
|
||
doublequote = False
|
||
skipinitialspace = True
|
||
lineterminator = '\r\n'
|
||
quoting = csv.QUOTE_NONE
|
||
d = mydialect()
|
||
|
||
mydialect.delimiter = ":::"
|
||
self.assertRaises(csv.Error, mydialect)
|
||
|
||
mydialect.delimiter = 4
|
||
self.assertRaises(csv.Error, mydialect)
|
||
|
||
def test_lineterminator(self):
|
||
class mydialect(csv.Dialect):
|
||
delimiter = ";"
|
||
escapechar = '\\'
|
||
doublequote = False
|
||
skipinitialspace = True
|
||
lineterminator = '\r\n'
|
||
quoting = csv.QUOTE_NONE
|
||
d = mydialect()
|
||
|
||
mydialect.lineterminator = ":::"
|
||
d = mydialect()
|
||
|
||
mydialect.lineterminator = 4
|
||
self.assertRaises(csv.Error, mydialect)
|
||
|
||
|
||
class TestSniffer(unittest.TestCase):
|
||
sample1 = """\
|
||
Harry's, Arlington Heights, IL, 2/1/03, Kimi Hayes
|
||
Shark City, Glendale Heights, IL, 12/28/02, Prezence
|
||
Tommy's Place, Blue Island, IL, 12/28/02, Blue Sunday/White Crow
|
||
Stonecutters Seafood and Chop House, Lemont, IL, 12/19/02, Week Back
|
||
"""
|
||
sample2 = """\
|
||
'Harry''s':'Arlington Heights':'IL':'2/1/03':'Kimi Hayes'
|
||
'Shark City':'Glendale Heights':'IL':'12/28/02':'Prezence'
|
||
'Tommy''s Place':'Blue Island':'IL':'12/28/02':'Blue Sunday/White Crow'
|
||
'Stonecutters Seafood and Chop House':'Lemont':'IL':'12/19/02':'Week Back'
|
||
"""
|
||
|
||
header = '''\
|
||
"venue","city","state","date","performers"
|
||
'''
|
||
sample3 = '''\
|
||
05/05/03?05/05/03?05/05/03?05/05/03?05/05/03?05/05/03
|
||
05/05/03?05/05/03?05/05/03?05/05/03?05/05/03?05/05/03
|
||
05/05/03?05/05/03?05/05/03?05/05/03?05/05/03?05/05/03
|
||
'''
|
||
|
||
sample4 = '''\
|
||
2147483648;43.0e12;17;abc;def
|
||
147483648;43.0e2;17;abc;def
|
||
47483648;43.0;170;abc;def
|
||
'''
|
||
|
||
def test_has_header(self):
|
||
sniffer = csv.Sniffer()
|
||
self.assertEqual(sniffer.has_header(self.sample1), False)
|
||
self.assertEqual(sniffer.has_header(self.header+self.sample1), True)
|
||
|
||
def test_sniff(self):
|
||
sniffer = csv.Sniffer()
|
||
dialect = sniffer.sniff(self.sample1)
|
||
self.assertEqual(dialect.delimiter, ",")
|
||
self.assertEqual(dialect.quotechar, '"')
|
||
self.assertEqual(dialect.skipinitialspace, True)
|
||
|
||
dialect = sniffer.sniff(self.sample2)
|
||
self.assertEqual(dialect.delimiter, ":")
|
||
self.assertEqual(dialect.quotechar, "'")
|
||
self.assertEqual(dialect.skipinitialspace, False)
|
||
|
||
def test_delimiters(self):
|
||
sniffer = csv.Sniffer()
|
||
dialect = sniffer.sniff(self.sample3)
|
||
self.assertEqual(dialect.delimiter, "0")
|
||
dialect = sniffer.sniff(self.sample3, delimiters="?,")
|
||
self.assertEqual(dialect.delimiter, "?")
|
||
dialect = sniffer.sniff(self.sample3, delimiters="/,")
|
||
self.assertEqual(dialect.delimiter, "/")
|
||
dialect = sniffer.sniff(self.sample4)
|
||
self.assertEqual(dialect.delimiter, ";")
|
||
|
||
if not hasattr(sys, "gettotalrefcount"):
|
||
if test_support.verbose: print "*** skipping leakage tests ***"
|
||
else:
|
||
class NUL:
|
||
def write(s, *args):
|
||
pass
|
||
writelines = write
|
||
|
||
class TestLeaks(unittest.TestCase):
|
||
def test_create_read(self):
|
||
delta = 0
|
||
lastrc = sys.gettotalrefcount()
|
||
for i in xrange(20):
|
||
gc.collect()
|
||
self.assertEqual(gc.garbage, [])
|
||
rc = sys.gettotalrefcount()
|
||
csv.reader(["a,b,c\r\n"])
|
||
csv.reader(["a,b,c\r\n"])
|
||
csv.reader(["a,b,c\r\n"])
|
||
delta = rc-lastrc
|
||
lastrc = rc
|
||
# if csv.reader() leaks, last delta should be 3 or more
|
||
self.assertEqual(delta < 3, True)
|
||
|
||
def test_create_write(self):
|
||
delta = 0
|
||
lastrc = sys.gettotalrefcount()
|
||
s = NUL()
|
||
for i in xrange(20):
|
||
gc.collect()
|
||
self.assertEqual(gc.garbage, [])
|
||
rc = sys.gettotalrefcount()
|
||
csv.writer(s)
|
||
csv.writer(s)
|
||
csv.writer(s)
|
||
delta = rc-lastrc
|
||
lastrc = rc
|
||
# if csv.writer() leaks, last delta should be 3 or more
|
||
self.assertEqual(delta < 3, True)
|
||
|
||
def test_read(self):
|
||
delta = 0
|
||
rows = ["a,b,c\r\n"]*5
|
||
lastrc = sys.gettotalrefcount()
|
||
for i in xrange(20):
|
||
gc.collect()
|
||
self.assertEqual(gc.garbage, [])
|
||
rc = sys.gettotalrefcount()
|
||
rdr = csv.reader(rows)
|
||
for row in rdr:
|
||
pass
|
||
delta = rc-lastrc
|
||
lastrc = rc
|
||
# if reader leaks during read, delta should be 5 or more
|
||
self.assertEqual(delta < 5, True)
|
||
|
||
def test_write(self):
|
||
delta = 0
|
||
rows = [[1,2,3]]*5
|
||
s = NUL()
|
||
lastrc = sys.gettotalrefcount()
|
||
for i in xrange(20):
|
||
gc.collect()
|
||
self.assertEqual(gc.garbage, [])
|
||
rc = sys.gettotalrefcount()
|
||
writer = csv.writer(s)
|
||
for row in rows:
|
||
writer.writerow(row)
|
||
delta = rc-lastrc
|
||
lastrc = rc
|
||
# if writer leaks during write, last delta should be 5 or more
|
||
self.assertEqual(delta < 5, True)
|
||
|
||
# commented out for now - csv module doesn't yet support Unicode
|
||
if 0:
|
||
from StringIO import StringIO
|
||
import csv
|
||
|
||
class TestUnicode(unittest.TestCase):
|
||
def test_unicode_read(self):
|
||
import codecs
|
||
f = codecs.EncodedFile(StringIO("Martin von L<>wis,"
|
||
"Marc Andr<64> Lemburg,"
|
||
"Guido van Rossum,"
|
||
"Fran<EFBFBD>ois Pinard\r\n"),
|
||
data_encoding='iso-8859-1')
|
||
reader = csv.reader(f)
|
||
self.assertEqual(list(reader), [[u"Martin von L<>wis",
|
||
u"Marc Andr<64> Lemburg",
|
||
u"Guido van Rossum",
|
||
u"Fran<EFBFBD>ois Pinardn"]])
|
||
|
||
def test_main():
|
||
mod = sys.modules[__name__]
|
||
test_support.run_unittest(
|
||
*[getattr(mod, name) for name in dir(mod) if name.startswith('Test')]
|
||
)
|
||
|
||
if __name__ == '__main__':
|
||
test_main()
|