--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/symbian-qemu-0.9.1-12/python-2.6.1/Lib/test/test_csv.py Fri Jul 31 15:01:17 2009 +0100
@@ -0,0 +1,1030 @@
+# -*- coding: iso-8859-1 -*-
+# Copyright (C) 2001,2002 Python Software Foundation
+# csv package unit tests
+
+import sys
+import os
+import unittest
+from StringIO import StringIO
+import tempfile
+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_arg_valid(self, ctor, arg):
+ self.assertRaises(TypeError, ctor)
+ self.assertRaises(TypeError, ctor, None)
+ self.assertRaises(TypeError, ctor, arg, bad_attr = 0)
+ self.assertRaises(TypeError, ctor, arg, delimiter = 0)
+ self.assertRaises(TypeError, ctor, arg, delimiter = 'XX')
+ self.assertRaises(csv.Error, ctor, arg, 'foo')
+ self.assertRaises(TypeError, ctor, arg, delimiter=None)
+ self.assertRaises(TypeError, ctor, arg, delimiter=1)
+ self.assertRaises(TypeError, ctor, arg, quotechar=1)
+ self.assertRaises(TypeError, ctor, arg, lineterminator=None)
+ self.assertRaises(TypeError, ctor, arg, lineterminator=1)
+ self.assertRaises(TypeError, ctor, arg, quoting=None)
+ self.assertRaises(TypeError, ctor, arg,
+ quoting=csv.QUOTE_ALL, quotechar='')
+ self.assertRaises(TypeError, ctor, arg,
+ quoting=csv.QUOTE_ALL, quotechar=None)
+
+ def test_reader_arg_valid(self):
+ self._test_arg_valid(csv.reader, [])
+
+ def test_writer_arg_valid(self):
+ self._test_arg_valid(csv.writer, StringIO())
+
+ def _test_default_attrs(self, ctor, *args):
+ obj = ctor(*args)
+ # Check defaults
+ self.assertEqual(obj.dialect.delimiter, ',')
+ self.assertEqual(obj.dialect.doublequote, True)
+ self.assertEqual(obj.dialect.escapechar, None)
+ self.assertEqual(obj.dialect.lineterminator, "\r\n")
+ self.assertEqual(obj.dialect.quotechar, '"')
+ self.assertEqual(obj.dialect.quoting, csv.QUOTE_MINIMAL)
+ self.assertEqual(obj.dialect.skipinitialspace, False)
+ self.assertEqual(obj.dialect.strict, False)
+ # Try deleting or changing attributes (they are read-only)
+ self.assertRaises(TypeError, delattr, obj.dialect, 'delimiter')
+ self.assertRaises(TypeError, setattr, obj.dialect, 'delimiter', ':')
+ self.assertRaises(AttributeError, delattr, obj.dialect, 'quoting')
+ self.assertRaises(AttributeError, setattr, obj.dialect,
+ 'quoting', None)
+
+ def test_reader_attrs(self):
+ self._test_default_attrs(csv.reader, [])
+
+ def test_writer_attrs(self):
+ self._test_default_attrs(csv.writer, StringIO())
+
+ def _test_kw_attrs(self, ctor, *args):
+ # Now try with alternate options
+ kwargs = dict(delimiter=':', doublequote=False, escapechar='\\',
+ lineterminator='\r', quotechar='*',
+ quoting=csv.QUOTE_NONE, skipinitialspace=True,
+ strict=True)
+ obj = ctor(*args, **kwargs)
+ self.assertEqual(obj.dialect.delimiter, ':')
+ self.assertEqual(obj.dialect.doublequote, False)
+ self.assertEqual(obj.dialect.escapechar, '\\')
+ self.assertEqual(obj.dialect.lineterminator, "\r")
+ self.assertEqual(obj.dialect.quotechar, '*')
+ self.assertEqual(obj.dialect.quoting, csv.QUOTE_NONE)
+ self.assertEqual(obj.dialect.skipinitialspace, True)
+ self.assertEqual(obj.dialect.strict, True)
+
+ def test_reader_kw_attrs(self):
+ self._test_kw_attrs(csv.reader, [])
+
+ def test_writer_kw_attrs(self):
+ self._test_kw_attrs(csv.writer, StringIO())
+
+ def _test_dialect_attrs(self, ctor, *args):
+ # Now try with dialect-derived options
+ class dialect:
+ delimiter='-'
+ doublequote=False
+ escapechar='^'
+ lineterminator='$'
+ quotechar='#'
+ quoting=csv.QUOTE_ALL
+ skipinitialspace=True
+ strict=False
+ args = args + (dialect,)
+ obj = ctor(*args)
+ self.assertEqual(obj.dialect.delimiter, '-')
+ self.assertEqual(obj.dialect.doublequote, False)
+ self.assertEqual(obj.dialect.escapechar, '^')
+ self.assertEqual(obj.dialect.lineterminator, "$")
+ self.assertEqual(obj.dialect.quotechar, '#')
+ self.assertEqual(obj.dialect.quoting, csv.QUOTE_ALL)
+ self.assertEqual(obj.dialect.skipinitialspace, True)
+ self.assertEqual(obj.dialect.strict, False)
+
+ def test_reader_dialect_attrs(self):
+ self._test_dialect_attrs(csv.reader, [])
+
+ def test_writer_dialect_attrs(self):
+ self._test_dialect_attrs(csv.writer, StringIO())
+
+
+ def _write_test(self, fields, expect, **kwargs):
+ fd, name = tempfile.mkstemp()
+ fileobj = os.fdopen(fd, "w+b")
+ try:
+ writer = csv.writer(fileobj, **kwargs)
+ writer.writerow(fields)
+ fileobj.seek(0)
+ self.assertEqual(fileobj.read(),
+ expect + writer.dialect.lineterminator)
+ finally:
+ fileobj.close()
+ os.unlink(name)
+
+ 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='\\')
+ self.assertRaises(csv.Error,
+ self._write_test,
+ ['a',1,'p,"q"'], 'a,1,"p,\\"q\\""',
+ escapechar=None, doublequote=False)
+ self._write_test(['a',1,'p,"q"'], 'a,1,"p,\\"q\\""',
+ escapechar='\\', doublequote = False)
+ self._write_test(['"'], '""""',
+ escapechar='\\', quoting = csv.QUOTE_MINIMAL)
+ self._write_test(['"'], '\\"',
+ escapechar='\\', quoting = csv.QUOTE_MINIMAL,
+ doublequote = False)
+ self._write_test(['"'], '\\"',
+ escapechar='\\', quoting = csv.QUOTE_NONE)
+ 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']])
+ fd, name = tempfile.mkstemp()
+ fileobj = os.fdopen(fd, "w+b")
+ try:
+ writer = csv.writer(fileobj)
+ self.assertRaises(TypeError, writer.writerows, None)
+ writer.writerows([['a','b'],['c','d']])
+ fileobj.seek(0)
+ self.assertEqual(fileobj.read(), "a,b\r\nc,d\r\n")
+ finally:
+ fileobj.close()
+ os.unlink(name)
+
+ 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_quoting(self):
+ self._read_test(['1,",3,",5'], [['1', ',3,', '5']])
+ self._read_test(['1,",3,",5'], [['1', '"', '3', '"', '5']],
+ quotechar=None, escapechar='\\')
+ self._read_test(['1,",3,",5'], [['1', '"', '3', '"', '5']],
+ quoting=csv.QUOTE_NONE, escapechar='\\')
+ # will this fail where locale uses comma for decimals?
+ self._read_test([',3,"5",7.3, 9'], [['', 3, '5', 7.3, 9]],
+ quoting=csv.QUOTE_NONNUMERIC)
+ self.assertRaises(ValueError, self._read_test,
+ ['abc,3'], [[]],
+ quoting=csv.QUOTE_NONNUMERIC)
+
+ def test_read_bigfield(self):
+ # This exercises the buffer realloc functionality and field size
+ # limits.
+ limit = csv.field_size_limit()
+ try:
+ size = 50000
+ bigstring = 'X' * size
+ bigline = '%s,%s' % (bigstring, bigstring)
+ self._read_test([bigline], [[bigstring, bigstring]])
+ csv.field_size_limit(size)
+ self._read_test([bigline], [[bigstring, bigstring]])
+ self.assertEqual(csv.field_size_limit(), size)
+ csv.field_size_limit(size-1)
+ self.assertRaises(csv.Error, self._read_test, [bigline], [])
+ self.assertRaises(TypeError, csv.field_size_limit, None)
+ self.assertRaises(TypeError, csv.field_size_limit, 1, None)
+ finally:
+ csv.field_size_limit(limit)
+
+ def test_read_linenum(self):
+ for r in (csv.reader(['line,1', 'line,2', 'line,3']),
+ csv.DictReader(['line,1', 'line,2', 'line,3'],
+ fieldnames=['a', 'b', 'c'])):
+ self.assertEqual(r.line_num, 0)
+ r.next()
+ self.assertEqual(r.line_num, 1)
+ r.next()
+ self.assertEqual(r.line_num, 2)
+ r.next()
+ self.assertEqual(r.line_num, 3)
+ self.assertRaises(StopIteration, r.next)
+ self.assertEqual(r.line_num, 3)
+
+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", 0, 0)
+ self.assertRaises(TypeError, csv.register_dialect, "nonesuch",
+ badargument=None)
+ self.assertRaises(TypeError, csv.register_dialect, "nonesuch",
+ quoting=None)
+ self.assertRaises(TypeError, csv.register_dialect, [])
+
+ 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(csv.get_dialect(name).delimiter, '\t')
+ got_dialects = csv.list_dialects()
+ got_dialects.sort()
+ self.assertEqual(expected_dialects, got_dialects)
+ finally:
+ csv.unregister_dialect(name)
+
+ def test_register_kwargs(self):
+ name = 'fedcba'
+ csv.register_dialect(name, delimiter=';')
+ try:
+ self.failUnless(csv.get_dialect(name).delimiter, '\t')
+ self.failUnless(list(csv.reader('X;Y;Z', name)), ['X', 'Y', 'Z'])
+ 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 = "\\"
+
+ fd, name = tempfile.mkstemp()
+ fileobj = os.fdopen(fd, "w+b")
+ try:
+ fileobj.write("abc def\nc1ccccc1 benzene\n")
+ fileobj.seek(0)
+ rdr = csv.reader(fileobj, dialect=space())
+ self.assertEqual(rdr.next(), ["abc", "def"])
+ self.assertEqual(rdr.next(), ["c1ccccc1", "benzene"])
+ finally:
+ fileobj.close()
+ os.unlink(name)
+
+ 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:
+ fd, name = tempfile.mkstemp()
+ fileobj = os.fdopen(fd, "w+b")
+ try:
+ writer = csv.writer(fileobj)
+ writer.writerow([1,2,3])
+ fileobj.seek(0)
+ self.assertEqual(fileobj.read(), "1,2,3\r\n")
+ finally:
+ fileobj.close()
+ os.unlink(name)
+
+ fd, name = tempfile.mkstemp()
+ fileobj = os.fdopen(fd, "w+b")
+ try:
+ writer = csv.writer(fileobj, testA)
+ writer.writerow([1,2,3])
+ fileobj.seek(0)
+ self.assertEqual(fileobj.read(), "1\t2\t3\r\n")
+ finally:
+ fileobj.close()
+ os.unlink(name)
+
+ fd, name = tempfile.mkstemp()
+ fileobj = os.fdopen(fd, "w+b")
+ try:
+ writer = csv.writer(fileobj, dialect=testB())
+ writer.writerow([1,2,3])
+ fileobj.seek(0)
+ self.assertEqual(fileobj.read(), "1:2:3\r\n")
+ finally:
+ fileobj.close()
+ os.unlink(name)
+
+ fd, name = tempfile.mkstemp()
+ fileobj = os.fdopen(fd, "w+b")
+ try:
+ writer = csv.writer(fileobj, dialect='testC')
+ writer.writerow([1,2,3])
+ fileobj.seek(0)
+ self.assertEqual(fileobj.read(), "1|2|3\r\n")
+ finally:
+ fileobj.close()
+ os.unlink(name)
+
+ fd, name = tempfile.mkstemp()
+ fileobj = os.fdopen(fd, "w+b")
+ try:
+ writer = csv.writer(fileobj, dialect=testA, delimiter=';')
+ writer.writerow([1,2,3])
+ fileobj.seek(0)
+ self.assertEqual(fileobj.read(), "1;2;3\r\n")
+ finally:
+ fileobj.close()
+ os.unlink(name)
+
+ finally:
+ csv.unregister_dialect('testC')
+
+ def test_bad_dialect(self):
+ # Unknown parameter
+ self.assertRaises(TypeError, 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):
+ fd, name = tempfile.mkstemp()
+ fileobj = os.fdopen(fd, "w+b")
+ try:
+ fileobj.write(input)
+ fileobj.seek(0)
+ reader = csv.reader(fileobj, dialect = self.dialect)
+ fields = list(reader)
+ self.assertEqual(fields, expected_result)
+ finally:
+ fileobj.close()
+ os.unlink(name)
+
+ def writerAssertEqual(self, input, expected_result):
+ fd, name = tempfile.mkstemp()
+ fileobj = os.fdopen(fd, "w+b")
+ try:
+ writer = csv.writer(fileobj, dialect = self.dialect)
+ writer.writerows(input)
+ fileobj.seek(0)
+ self.assertEqual(fileobj.read(), expected_result)
+ finally:
+ fileobj.close()
+ os.unlink(name)
+
+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):
+ # Excel would never write a field containing '"a"b', but when
+ # reading one, it will return 'ab'.
+ self.readerAssertEqual('"a"b', [['ab']])
+
+ def test_lone_quote(self):
+ self.readerAssertEqual('a"b', [['a"b']])
+
+ def test_quote_and_quote(self):
+ # Excel would never write a field containing '"a" "b"', but when
+ # reading one, it will return 'a "b"'.
+ 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']])
+
+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):
+ fd, name = tempfile.mkstemp()
+ fileobj = os.fdopen(fd, "w+b")
+ try:
+ writer = csv.DictWriter(fileobj, fieldnames = ["f1", "f2", "f3"])
+ writer.writerow({"f1": 10, "f3": "abc"})
+ fileobj.seek(0)
+ self.assertEqual(fileobj.read(), "10,,abc\r\n")
+ finally:
+ fileobj.close()
+ os.unlink(name)
+
+ def test_write_no_fields(self):
+ fileobj = StringIO()
+ self.assertRaises(TypeError, csv.DictWriter, fileobj)
+
+ def test_read_dict_fields(self):
+ fd, name = tempfile.mkstemp()
+ fileobj = os.fdopen(fd, "w+b")
+ try:
+ fileobj.write("1,2,abc\r\n")
+ fileobj.seek(0)
+ reader = csv.DictReader(fileobj,
+ fieldnames=["f1", "f2", "f3"])
+ self.assertEqual(reader.next(), {"f1": '1', "f2": '2', "f3": 'abc'})
+ finally:
+ fileobj.close()
+ os.unlink(name)
+
+ def test_read_dict_no_fieldnames(self):
+ fd, name = tempfile.mkstemp()
+ fileobj = os.fdopen(fd, "w+b")
+ try:
+ fileobj.write("f1,f2,f3\r\n1,2,abc\r\n")
+ fileobj.seek(0)
+ reader = csv.DictReader(fileobj)
+ self.assertEqual(reader.fieldnames, ["f1", "f2", "f3"])
+ self.assertEqual(reader.next(), {"f1": '1', "f2": '2', "f3": 'abc'})
+ finally:
+ fileobj.close()
+ os.unlink(name)
+
+ # Two test cases to make sure existing ways of implicitly setting
+ # fieldnames continue to work. Both arise from discussion in issue3436.
+ def test_read_dict_fieldnames_from_file(self):
+ fd, name = tempfile.mkstemp()
+ f = os.fdopen(fd, "w+b")
+ try:
+ f.write("f1,f2,f3\r\n1,2,abc\r\n")
+ f.seek(0)
+ reader = csv.DictReader(f, fieldnames=csv.reader(f).next())
+ self.assertEqual(reader.fieldnames, ["f1", "f2", "f3"])
+ self.assertEqual(reader.next(), {"f1": '1', "f2": '2', "f3": 'abc'})
+ finally:
+ f.close()
+ os.unlink(name)
+
+ def test_read_dict_fieldnames_chain(self):
+ import itertools
+ fd, name = tempfile.mkstemp()
+ f = os.fdopen(fd, "w+b")
+ try:
+ f.write("f1,f2,f3\r\n1,2,abc\r\n")
+ f.seek(0)
+ reader = csv.DictReader(f)
+ first = next(reader)
+ for row in itertools.chain([first], reader):
+ self.assertEqual(reader.fieldnames, ["f1", "f2", "f3"])
+ self.assertEqual(row, {"f1": '1', "f2": '2', "f3": 'abc'})
+ finally:
+ f.close()
+ os.unlink(name)
+
+ def test_read_long(self):
+ fd, name = tempfile.mkstemp()
+ fileobj = os.fdopen(fd, "w+b")
+ try:
+ fileobj.write("1,2,abc,4,5,6\r\n")
+ fileobj.seek(0)
+ reader = csv.DictReader(fileobj,
+ fieldnames=["f1", "f2"])
+ self.assertEqual(reader.next(), {"f1": '1', "f2": '2',
+ None: ["abc", "4", "5", "6"]})
+ finally:
+ fileobj.close()
+ os.unlink(name)
+
+ def test_read_long_with_rest(self):
+ fd, name = tempfile.mkstemp()
+ fileobj = os.fdopen(fd, "w+b")
+ try:
+ fileobj.write("1,2,abc,4,5,6\r\n")
+ fileobj.seek(0)
+ reader = csv.DictReader(fileobj,
+ fieldnames=["f1", "f2"], restkey="_rest")
+ self.assertEqual(reader.next(), {"f1": '1', "f2": '2',
+ "_rest": ["abc", "4", "5", "6"]})
+ finally:
+ fileobj.close()
+ os.unlink(name)
+
+ def test_read_long_with_rest_no_fieldnames(self):
+ fd, name = tempfile.mkstemp()
+ fileobj = os.fdopen(fd, "w+b")
+ try:
+ fileobj.write("f1,f2\r\n1,2,abc,4,5,6\r\n")
+ fileobj.seek(0)
+ reader = csv.DictReader(fileobj, restkey="_rest")
+ self.assertEqual(reader.fieldnames, ["f1", "f2"])
+ self.assertEqual(reader.next(), {"f1": '1', "f2": '2',
+ "_rest": ["abc", "4", "5", "6"]})
+ finally:
+ fileobj.close()
+ os.unlink(name)
+
+ def test_read_short(self):
+ fd, name = tempfile.mkstemp()
+ fileobj = os.fdopen(fd, "w+b")
+ try:
+ fileobj.write("1,2,abc,4,5,6\r\n1,2,abc\r\n")
+ fileobj.seek(0)
+ reader = csv.DictReader(fileobj,
+ 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'})
+ finally:
+ fileobj.close()
+ os.unlink(name)
+
+ 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'})
+
+ def test_read_semi_sep(self):
+ reader = csv.DictReader(["1;2;abc;4;5;6\r\n"],
+ fieldnames="1 2 3 4 5 6".split(),
+ delimiter=';')
+ 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)
+
+ fd, name = tempfile.mkstemp()
+ fileobj = os.fdopen(fd, "w+b")
+ try:
+ writer = csv.writer(fileobj, dialect="excel")
+ writer.writerow(a)
+ expected = ",".join([str(i) for i in a])+"\r\n"
+ fileobj.seek(0)
+ self.assertEqual(fileobj.read(), expected)
+ finally:
+ fileobj.close()
+ os.unlink(name)
+
+ def test_double_write(self):
+ import array
+ contents = [(20-i)*0.1 for i in range(20)]
+ a = array.array('d', contents)
+ fd, name = tempfile.mkstemp()
+ fileobj = os.fdopen(fd, "w+b")
+ try:
+ writer = csv.writer(fileobj, dialect="excel")
+ writer.writerow(a)
+ expected = ",".join([str(i) for i in a])+"\r\n"
+ fileobj.seek(0)
+ self.assertEqual(fileobj.read(), expected)
+ finally:
+ fileobj.close()
+ os.unlink(name)
+
+ def test_float_write(self):
+ import array
+ contents = [(20-i)*0.1 for i in range(20)]
+ a = array.array('f', contents)
+ fd, name = tempfile.mkstemp()
+ fileobj = os.fdopen(fd, "w+b")
+ try:
+ writer = csv.writer(fileobj, dialect="excel")
+ writer.writerow(a)
+ expected = ",".join([str(i) for i in a])+"\r\n"
+ fileobj.seek(0)
+ self.assertEqual(fileobj.read(), expected)
+ finally:
+ fileobj.close()
+ os.unlink(name)
+
+ def test_char_write(self):
+ import array, string
+ a = array.array('c', string.letters)
+ fd, name = tempfile.mkstemp()
+ fileobj = os.fdopen(fd, "w+b")
+ try:
+ writer = csv.writer(fileobj, dialect="excel")
+ writer.writerow(a)
+ expected = ",".join(a)+"\r\n"
+ fileobj.seek(0)
+ self.assertEqual(fileobj.read(), expected)
+ finally:
+ fileobj.close()
+ os.unlink(name)
+
+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.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
+'''
+
+ sample5 = "aaa\tbbb\r\nAAA\t\r\nBBB\t\r\n"
+ sample6 = "a|b|c\r\nd|e|f\r\n"
+ sample7 = "'a'|'b'|'c'\r\n'd'|e|f\r\n"
+
+ 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)
+ # given that all three lines in sample3 are equal,
+ # I think that any character could have been 'guessed' as the
+ # delimiter, depending on dictionary order
+ self.assert_(dialect.delimiter in self.sample3)
+ 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, ";")
+ dialect = sniffer.sniff(self.sample5)
+ self.assertEqual(dialect.delimiter, "\t")
+ dialect = sniffer.sniff(self.sample6)
+ self.assertEqual(dialect.delimiter, "|")
+ dialect = sniffer.sniff(self.sample7)
+ self.assertEqual(dialect.delimiter, "|")
+ self.assertEqual(dialect.quotechar, "'")
+
+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
+## class TestUnicode(unittest.TestCase):
+## def test_unicode_read(self):
+## import codecs
+## f = codecs.EncodedFile(StringIO("Martin von Löwis,"
+## "Marc André Lemburg,"
+## "Guido van Rossum,"
+## "François Pinard\r\n"),
+## data_encoding='iso-8859-1')
+## reader = csv.reader(f)
+## self.assertEqual(list(reader), [[u"Martin von Löwis",
+## u"Marc André Lemburg",
+## u"Guido van Rossum",
+## u"François 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()