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from PIL import ContainerIO, Image
from .helper import hopper
TEST_FILE = "Tests/images/dummy.container"
def test_sanity():
dir(Image)
dir(ContainerIO)
def test_isatty():
with hopper() as im:
container = ContainerIO.ContainerIO(im, 0, 0)
assert container.isatty() is False
def test_seek_mode_0():
# Arrange
mode = 0
with open(TEST_FILE, "rb") as fh:
container = ContainerIO.ContainerIO(fh, 22, 100)
# Act
container.seek(33, mode)
container.seek(33, mode)
# Assert
assert container.tell() == 33
def test_seek_mode_1():
# Arrange
mode = 1
with open(TEST_FILE, "rb") as fh:
container = ContainerIO.ContainerIO(fh, 22, 100)
# Act
container.seek(33, mode)
container.seek(33, mode)
# Assert
assert container.tell() == 66
def test_seek_mode_2():
# Arrange
mode = 2
with open(TEST_FILE, "rb") as fh:
container = ContainerIO.ContainerIO(fh, 22, 100)
# Act
container.seek(33, mode)
container.seek(33, mode)
# Assert
assert container.tell() == 100
def test_read_n0():
# Arrange
for bytesmode in (True, False):
with open(TEST_FILE, "rb" if bytesmode else "r") as fh:
container = ContainerIO.ContainerIO(fh, 22, 100)
# Act
container.seek(81)
data = container.read()
# Assert
if bytesmode:
data = data.decode()
assert data == "7\nThis is line 8\n"
def test_read_n():
# Arrange
for bytesmode in (True, False):
with open(TEST_FILE, "rb" if bytesmode else "r") as fh:
container = ContainerIO.ContainerIO(fh, 22, 100)
# Act
container.seek(81)
data = container.read(3)
# Assert
if bytesmode:
data = data.decode()
assert data == "7\nT"
def test_read_eof():
# Arrange
for bytesmode in (True, False):
with open(TEST_FILE, "rb" if bytesmode else "r") as fh:
container = ContainerIO.ContainerIO(fh, 22, 100)
# Act
container.seek(100)
data = container.read()
# Assert
if bytesmode:
data = data.decode()
assert data == ""
def test_readline():
# Arrange
for bytesmode in (True, False):
with open(TEST_FILE, "rb" if bytesmode else "r") as fh:
container = ContainerIO.ContainerIO(fh, 0, 120)
# Act
data = container.readline()
# Assert
if bytesmode:
data = data.decode()
assert data == "This is line 1\n"
def test_readlines():
# Arrange
for bytesmode in (True, False):
expected = [
"This is line 1\n",
"This is line 2\n",
"This is line 3\n",
"This is line 4\n",
"This is line 5\n",
"This is line 6\n",
"This is line 7\n",
"This is line 8\n",
]
with open(TEST_FILE, "rb" if bytesmode else "r") as fh:
container = ContainerIO.ContainerIO(fh, 0, 120)
# Act
data = container.readlines()
# Assert
if bytesmode:
data = [line.decode() for line in data]
assert data == expected
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