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131 lines
3.0 KiB
Python
131 lines
3.0 KiB
Python
from __future__ import annotations
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import pytest
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from PIL import ContainerIO, Image
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from .helper import hopper
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TEST_FILE = "Tests/images/dummy.container"
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def test_sanity() -> None:
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dir(Image)
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dir(ContainerIO)
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def test_isatty() -> None:
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with hopper() as im:
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container = ContainerIO.ContainerIO(im, 0, 0)
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assert container.isatty() is False
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@pytest.mark.parametrize(
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"mode, expected_value",
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(
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(0, 33),
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(1, 66),
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(2, 100),
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),
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)
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def test_seek_mode(mode: int, expected_value: int) -> None:
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# Arrange
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with open(TEST_FILE, "rb") 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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assert container.tell() == expected_value
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@pytest.mark.parametrize("bytesmode", (True, False))
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def test_read_n0(bytesmode: bool) -> None:
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# Arrange
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with open(TEST_FILE, "rb" if bytesmode else "r") 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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if bytesmode:
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data = data.decode()
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assert data == "7\nThis is line 8\n"
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@pytest.mark.parametrize("bytesmode", (True, False))
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def test_read_n(bytesmode: bool) -> None:
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# Arrange
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with open(TEST_FILE, "rb" if bytesmode else "r") 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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if bytesmode:
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data = data.decode()
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assert data == "7\nT"
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@pytest.mark.parametrize("bytesmode", (True, False))
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def test_read_eof(bytesmode: bool) -> None:
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# Arrange
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with open(TEST_FILE, "rb" if bytesmode else "r") 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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if bytesmode:
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data = data.decode()
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assert data == ""
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@pytest.mark.parametrize("bytesmode", (True, False))
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def test_readline(bytesmode: bool) -> None:
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# Arrange
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with open(TEST_FILE, "rb" if bytesmode else "r") 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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if bytesmode:
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data = data.decode()
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assert data == "This is line 1\n"
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@pytest.mark.parametrize("bytesmode", (True, False))
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def test_readlines(bytesmode: bool) -> None:
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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, "rb" if bytesmode else "r") 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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if bytesmode:
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data = [line.decode() for line in data]
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assert data == expected
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