Pillow/Tests/test_imagetk.py
Jon Dufresne 4de5477b61 Remove unnecessary unittest.main() boilerplate from test files
With the introduction and use of pytest, it is simple and easy to
execute specific tests in isolation through documented command line
arguments. Either by specifying the module path or through the `-k
EXPRESSION` argument. There is no longer any need to provide the
boilerplate:

    if __name__ == '__main__':
        unittest.main()

To every test file. It is simply noise.

The pattern remains in test files that aren't named with `test_*` as
those files are not discovered and executed by pytest by default.
2019-02-03 10:10:16 -08:00

90 lines
2.4 KiB
Python

from .helper import unittest, PillowTestCase, hopper
from PIL import Image
from PIL._util import py3
try:
from PIL import ImageTk
if py3:
import tkinter as tk
else:
import Tkinter as tk
dir(ImageTk)
HAS_TK = True
except (OSError, ImportError):
# Skipped via setUp()
HAS_TK = False
TK_MODES = ('1', 'L', 'P', 'RGB', 'RGBA')
@unittest.skipIf(not HAS_TK, "Tk not installed")
class TestImageTk(PillowTestCase):
def setUp(self):
try:
# setup tk
tk.Frame()
# root = tk.Tk()
except tk.TclError as v:
self.skipTest("TCL Error: %s" % v)
def test_kw(self):
TEST_JPG = "Tests/images/hopper.jpg"
TEST_PNG = "Tests/images/hopper.png"
im1 = Image.open(TEST_JPG)
im2 = Image.open(TEST_PNG)
with open(TEST_PNG, 'rb') as fp:
data = fp.read()
kw = {"file": TEST_JPG, "data": data}
# Test "file"
im = ImageTk._get_image_from_kw(kw)
self.assert_image_equal(im, im1)
# Test "data"
im = ImageTk._get_image_from_kw(kw)
self.assert_image_equal(im, im2)
# Test no relevant entry
im = ImageTk._get_image_from_kw(kw)
self.assertIsNone(im)
def test_photoimage(self):
for mode in TK_MODES:
# test as image:
im = hopper(mode)
# this should not crash
im_tk = ImageTk.PhotoImage(im)
self.assertEqual(im_tk.width(), im.width)
self.assertEqual(im_tk.height(), im.height)
# _tkinter.TclError: this function is not yet supported
# reloaded = ImageTk.getimage(im_tk)
# self.assert_image_equal(reloaded, im)
def test_photoimage_blank(self):
# test a image using mode/size:
for mode in TK_MODES:
im_tk = ImageTk.PhotoImage(mode, (100, 100))
self.assertEqual(im_tk.width(), 100)
self.assertEqual(im_tk.height(), 100)
# reloaded = ImageTk.getimage(im_tk)
# self.assert_image_equal(reloaded, im)
def test_bitmapimage(self):
im = hopper('1')
# this should not crash
im_tk = ImageTk.BitmapImage(im)
self.assertEqual(im_tk.width(), im.width)
self.assertEqual(im_tk.height(), im.height)
# reloaded = ImageTk.getimage(im_tk)
# self.assert_image_equal(reloaded, im)