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127 lines
3.1 KiB
Python
127 lines
3.1 KiB
Python
from .helper import PillowTestCase, hopper
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from PIL import Image
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from PIL import ContainerIO
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TEST_FILE = "Tests/images/dummy.container"
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class TestFileContainer(PillowTestCase):
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def test_sanity(self):
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dir(Image)
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dir(ContainerIO)
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def test_isatty(self):
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im = hopper()
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container = ContainerIO.ContainerIO(im, 0, 0)
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self.assertFalse(container.isatty())
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def test_seek_mode_0(self):
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# Arrange
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mode = 0
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with open(TEST_FILE) as fh:
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container = ContainerIO.ContainerIO(fh, 22, 100)
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# Act
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container.seek(33, mode)
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container.seek(33, mode)
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# Assert
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self.assertEqual(container.tell(), 33)
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def test_seek_mode_1(self):
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# Arrange
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mode = 1
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with open(TEST_FILE) as fh:
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container = ContainerIO.ContainerIO(fh, 22, 100)
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# Act
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container.seek(33, mode)
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container.seek(33, mode)
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# Assert
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self.assertEqual(container.tell(), 66)
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def test_seek_mode_2(self):
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# Arrange
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mode = 2
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with open(TEST_FILE) as fh:
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container = ContainerIO.ContainerIO(fh, 22, 100)
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# Act
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container.seek(33, mode)
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container.seek(33, mode)
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# Assert
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self.assertEqual(container.tell(), 100)
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def test_read_n0(self):
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# Arrange
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with open(TEST_FILE) as fh:
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container = ContainerIO.ContainerIO(fh, 22, 100)
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# Act
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container.seek(81)
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data = container.read()
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# Assert
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self.assertEqual(data, "7\nThis is line 8\n")
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def test_read_n(self):
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# Arrange
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with open(TEST_FILE) as fh:
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container = ContainerIO.ContainerIO(fh, 22, 100)
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# Act
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container.seek(81)
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data = container.read(3)
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# Assert
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self.assertEqual(data, "7\nT")
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def test_read_eof(self):
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# Arrange
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with open(TEST_FILE) as fh:
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container = ContainerIO.ContainerIO(fh, 22, 100)
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# Act
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container.seek(100)
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data = container.read()
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# Assert
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self.assertEqual(data, "")
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def test_readline(self):
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# Arrange
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with open(TEST_FILE) as fh:
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container = ContainerIO.ContainerIO(fh, 0, 120)
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# Act
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data = container.readline()
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# Assert
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self.assertEqual(data, "This is line 1\n")
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def test_readlines(self):
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# Arrange
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expected = [
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"This is line 1\n",
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"This is line 2\n",
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"This is line 3\n",
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"This is line 4\n",
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"This is line 5\n",
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"This is line 6\n",
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"This is line 7\n",
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"This is line 8\n",
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]
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with open(TEST_FILE) as fh:
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container = ContainerIO.ContainerIO(fh, 0, 120)
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# Act
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data = container.readlines()
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# Assert
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self.assertEqual(data, expected)
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