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tests for close and context manager

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wiredfool 2014-04-17 22:01:55 -07:00
parent 8c6a4c0299
commit 471cecb523
1 changed files with 16 additions and 0 deletions
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16
Tests/test_image_load.py
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@ -2,6 +2,8 @@ from tester import *
from PIL import Image from PIL import Image
import os
def test_sanity(): def test_sanity():
im = lena() im = lena()
@ -9,3 +11,17 @@ def test_sanity():
pix = im.load() pix = im.load()
assert_equal(pix[0, 0], (223, 162, 133)) assert_equal(pix[0, 0], (223, 162, 133))
def test_close():
im = Image.open("Images/lena.gif")
assert_no_exception(lambda: im.close())
assert_exception(ValueError, lambda: im.load())
assert_exception(ValueError, lambda: im.getpixel((0,0)))
def test_contextmanager():
fn = None
with Image.open("Images/lena.gif") as im:
fn = im.fp.fileno()
assert_no_exception(lambda: os.fstat(fn))
assert_exception(OSError, lambda: os.fstat(fn))