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Diffstat (limited to 'lib/python2.7/test/test_csv.py')
| -rw-r--r-- | lib/python2.7/test/test_csv.py | 1076 |
1 files changed, 0 insertions, 1076 deletions
diff --git a/lib/python2.7/test/test_csv.py b/lib/python2.7/test/test_csv.py deleted file mode 100644 index 53ca5ab..0000000 --- a/lib/python2.7/test/test_csv.py +++ /dev/null @@ -1,1076 +0,0 @@ -# -*- 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 -import io -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) - self._write_test(['a\nb',1], '"a\nb","1"', - 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 test_write_float(self): - # Issue 13573: loss of precision because csv.writer - # uses str() for floats instead of repr() - orig_row = [1.234567890123, 1.0/7.0, 'abc'] - f = StringIO() - c = csv.writer(f, quoting=csv.QUOTE_NONNUMERIC) - c.writerow(orig_row) - f.seek(0) - c = csv.reader(f, quoting=csv.QUOTE_NONNUMERIC) - new_row = next(c) - self.assertEqual(orig_row, new_row) - - 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_eof(self): - self._read_test(['a,"'], [['a', '']]) - self._read_test(['"a'], [['a']]) - self._read_test(['^'], [['\n']], escapechar='^') - self.assertRaises(csv.Error, self._read_test, ['a,"'], [], strict=True) - self.assertRaises(csv.Error, self._read_test, ['"a'], [], strict=True) - self.assertRaises(csv.Error, self._read_test, - ['^'], [], escapechar='^', strict=True) - - 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._read_test(['"a\nb", 7'], [['a\nb', ' 7']]) - 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) - - def test_roundtrip_quoteed_newlines(self): - fd, name = tempfile.mkstemp() - fileobj = os.fdopen(fd, "w+b") - try: - writer = csv.writer(fileobj) - self.assertRaises(TypeError, writer.writerows, None) - rows = [['a\nb','b'],['c','x\r\nd']] - writer.writerows(rows) - fileobj.seek(0) - for i, row in enumerate(csv.reader(fileobj)): - self.assertEqual(row, rows[i]) - finally: - fileobj.close() - os.unlink(name) - -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) - self.addCleanup(csv.unregister_dialect, name) - self.assertEqual(csv.get_dialect(name).delimiter, '\t') - got_dialects = sorted(csv.list_dialects()) - self.assertEqual(expected_dialects, got_dialects) - - def test_register_kwargs(self): - name = 'fedcba' - csv.register_dialect(name, delimiter=';') - self.addCleanup(csv.unregister_dialect, name) - self.assertEqual(csv.get_dialect(name).delimiter, ';') - self.assertEqual([['X', 'Y', 'Z']], list(csv.reader(['X;Y;Z'], 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_writer(self): - self.writerAssertEqual([['abc']], 'abc\r\n') - - def test_simple_writer(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 = io.open(fd, 'w+b') - try: - writer = csv.DictWriter(fileobj, fieldnames = ["f1", "f2", "f3"]) - writer.writeheader() - fileobj.seek(0) - self.assertEqual(fileobj.readline(), "f1,f2,f3\r\n") - writer.writerow({"f1": 10, "f3": "abc"}) - fileobj.seek(0) - fileobj.readline() # header - 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([repr(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([repr(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.assertIn(dialect.delimiter, 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, "'") - - def test_doublequote(self): - sniffer = csv.Sniffer() - dialect = sniffer.sniff(self.header) - self.assertFalse(dialect.doublequote) - dialect = sniffer.sniff(self.sample2) - self.assertTrue(dialect.doublequote) - -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() |