cpython: 94813eab5a58 (original) (raw)
Mercurial > cpython
changeset 88735:94813eab5a58
Issue #19990: Added tests for the imghdr module. Based on patch by Claudiu Popa. [#19990]
| Serhiy Storchaka storchaka@gmail.com | |
|---|---|
| date | Sun, 26 Jan 2014 23:52:57 +0200 |
| parents | 58b0f3e1ddf8(current diff)fde9e9832749(diff) |
| children | 6f217456b9ba |
| files | Lib/test/test_sundry.py Misc/NEWS |
| diffstat | 14 files changed, 147 insertions(+), 4 deletions(-)[+] [-] Lib/test/imghdrdata/python.bmp 0 Lib/test/imghdrdata/python.gif 0 Lib/test/imghdrdata/python.jpg 0 Lib/test/imghdrdata/python.pbm 3 Lib/test/imghdrdata/python.pgm 0 Lib/test/imghdrdata/python.png 0 Lib/test/imghdrdata/python.ppm 0 Lib/test/imghdrdata/python.ras 0 Lib/test/imghdrdata/python.sgi 0 Lib/test/imghdrdata/python.tiff 0 Lib/test/imghdrdata/python.xbm 6 Lib/test/test_imghdr.py 131 Lib/test/test_sundry.py 2 Misc/NEWS 9 |
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new file mode 100644 --- /dev/null +++ b/Lib/test/imghdrdata/python.xbm @@ -0,0 +1,6 @@ +#define python_width 16 +#define python_height 16 +static char python_bits[] = {
- 0xDF, 0xFE, 0x8F, 0xFD, 0x5F, 0xFB, 0xAB, 0xFE, 0xB5, 0x8D, 0xDA, 0x8F,
- 0xA5, 0x86, 0xFA, 0x83, 0x1A, 0x80, 0x0D, 0x80, 0x0D, 0x80, 0x0F, 0xE0,
- 0x0F, 0xF8, 0x0F, 0xF8, 0x0F, 0xFC, 0xFF, 0xFF, };
new file mode 100644 --- /dev/null +++ b/Lib/test/test_imghdr.py @@ -0,0 +1,131 @@ +import imghdr +import io +import os +import unittest +import warnings +from test.support import findfile, TESTFN, unlink + +TEST_FILES = (
- ('python.png', 'png'),
- ('python.gif', 'gif'),
- ('python.bmp', 'bmp'),
- ('python.ppm', 'ppm'),
- ('python.pgm', 'pgm'),
- ('python.pbm', 'pbm'),
- ('python.jpg', 'jpeg'),
- ('python.ras', 'rast'),
- ('python.sgi', 'rgb'),
- ('python.tiff', 'tiff'),
- ('python.xbm', 'xbm')
+) + +class UnseekableIO(io.FileIO):
+ +class TestImghdr(unittest.TestCase):
- @classmethod
- def setUpClass(cls):
cls.testfile = findfile('python.png', subdir='imghdrdata')[](#l12.36)with open(cls.testfile, 'rb') as stream:[](#l12.37)cls.testdata = stream.read()[](#l12.38)
- def test_data(self):
for filename, expected in TEST_FILES:[](#l12.44)filename = findfile(filename, subdir='imghdrdata')[](#l12.45)self.assertEqual(imghdr.what(filename), expected)[](#l12.46)with open(filename, 'rb') as stream:[](#l12.47)self.assertEqual(imghdr.what(stream), expected)[](#l12.48)with open(filename, 'rb') as stream:[](#l12.49)data = stream.read()[](#l12.50)self.assertEqual(imghdr.what(None, data), expected)[](#l12.51)self.assertEqual(imghdr.what(None, bytearray(data)), expected)[](#l12.52)
- def test_register_test(self):
def test_jumbo(h, file):[](#l12.55)if h.startswith(b'eggs'):[](#l12.56)return 'ham'[](#l12.57)imghdr.tests.append(test_jumbo)[](#l12.58)self.addCleanup(imghdr.tests.pop)[](#l12.59)self.assertEqual(imghdr.what(None, b'eggs'), 'ham')[](#l12.60)
- def test_file_pos(self):
with open(TESTFN, 'wb') as stream:[](#l12.63)stream.write(b'ababagalamaga')[](#l12.64)pos = stream.tell()[](#l12.65)stream.write(self.testdata)[](#l12.66)with open(TESTFN, 'rb') as stream:[](#l12.67)stream.seek(pos)[](#l12.68)self.assertEqual(imghdr.what(stream), 'png')[](#l12.69)self.assertEqual(stream.tell(), pos)[](#l12.70)
- def test_bad_args(self):
with self.assertRaises(TypeError):[](#l12.73)imghdr.what()[](#l12.74)with self.assertRaises(AttributeError):[](#l12.75)imghdr.what(None)[](#l12.76)with self.assertRaises(TypeError):[](#l12.77)imghdr.what(self.testfile, 1)[](#l12.78)with self.assertRaises(AttributeError):[](#l12.79)imghdr.what(os.fsencode(self.testfile))[](#l12.80)with open(self.testfile, 'rb') as f:[](#l12.81)with self.assertRaises(AttributeError):[](#l12.82)imghdr.what(f.fileno())[](#l12.83)
- def test_invalid_headers(self):
for header in (b'\211PN\r\n',[](#l12.86)b'\001\331',[](#l12.87)b'\x59\xA6',[](#l12.88)b'cutecat',[](#l12.89)b'000000JFI',[](#l12.90)b'GIF80'):[](#l12.91)self.assertIsNone(imghdr.what(None, header))[](#l12.92)
- def test_string_data(self):
with warnings.catch_warnings():[](#l12.95)warnings.simplefilter("ignore", BytesWarning)[](#l12.96)for filename, _ in TEST_FILES:[](#l12.97)filename = findfile(filename, subdir='imghdrdata')[](#l12.98)with open(filename, 'rb') as stream:[](#l12.99)data = stream.read().decode('latin1')[](#l12.100)with self.assertRaises(TypeError):[](#l12.101)imghdr.what(io.StringIO(data))[](#l12.102)with self.assertRaises(TypeError):[](#l12.103)imghdr.what(None, data)[](#l12.104)
- def test_missing_file(self):
with self.assertRaises(FileNotFoundError):[](#l12.107)imghdr.what('missing')[](#l12.108)
- def test_closed_file(self):
stream = open(self.testfile, 'rb')[](#l12.111)stream.close()[](#l12.112)with self.assertRaises(ValueError) as cm:[](#l12.113)imghdr.what(stream)[](#l12.114)stream = io.BytesIO(self.testdata)[](#l12.115)stream.close()[](#l12.116)with self.assertRaises(ValueError) as cm:[](#l12.117)imghdr.what(stream)[](#l12.118)
- def test_unseekable(self):
with open(TESTFN, 'wb') as stream:[](#l12.121)stream.write(self.testdata)[](#l12.122)with UnseekableIO(TESTFN, 'rb') as stream:[](#l12.123)with self.assertRaises(io.UnsupportedOperation):[](#l12.124)imghdr.what(stream)[](#l12.125)
- def test_output_stream(self):
with open(TESTFN, 'wb') as stream:[](#l12.128)stream.write(self.testdata)[](#l12.129)stream.seek(0)[](#l12.130)with self.assertRaises(OSError) as cm:[](#l12.131)imghdr.what(stream)[](#l12.132)
--- a/Lib/test/test_sundry.py +++ b/Lib/test/test_sundry.py @@ -6,7 +6,7 @@ import unittest class TestUntestedModules(unittest.TestCase): def test_untested_modules_can_be_imported(self):
untested = ('bdb', 'encodings', 'formatter', 'imghdr',[](#l13.7)
untested = ('bdb', 'encodings', 'formatter',[](#l13.8) 'nturl2path', 'tabnanny')[](#l13.9) with support.check_warnings(quiet=True):[](#l13.10) for name in untested:[](#l13.11)
--- a/Misc/NEWS +++ b/Misc/NEWS @@ -152,9 +152,15 @@ IDLE Tests ----- +- Issue #19990: Added tests for the imghdr module. Based on patch by
- Issue #20358: Tests for curses.window.overlay and curses.window.overwrite no longer specify min{row,col} > max{row,col}. +- Issue #19804: The test_find_mac test in test_uuid is now skipped if the
- Issue #19886: Use better estimated memory requirements for bigmem tests. Tools/Demos @@ -551,9 +557,6 @@ IDLE Tests ----- -- Issue #19804: The test_find_mac test in test_uuid is now skipped if the
- ifconfig executable is not available. -
- Issue #20055: Fix test_shutil under Windows with symlink privileges held. Patch by Vajrasky Kok.