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""" |
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:mod:`tests.unit.test_util` -- Unit Tests |
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========================================= |
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.. module:: tests.unit.test_util |
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:synopsis: Unit tests for the lib.util package. |
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.. moduleauthor:: Bill Maroney <[email protected]> |
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""" |
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import pytest |
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from lib.util import wrap, load_dataset |
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def test_wrap_correctness(): |
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""" Test the correctness of :func:`lib.util.wrap` by examining outputs for expected properties """ |
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long_line = "I'm a long line, but how long, really, is a line?" |
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long_para = 400 * long_line |
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m, n = 4, 120 |
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wrapped_para = wrap(long_para, m, n) |
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assert isinstance(wrapped_para, str), "wrong type" |
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for line in wrapped_para.split("\n"): |
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assert isinstance(line, str), "wrong type" |
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assert line.startswith(m * " "), "incorrect white-space padding at front of line" |
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assert len(line) <= n, "line is too long" |
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def test_wrap_bad_para_type_float(): |
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""" Test that :func:`lib.util.wrap` raises a ``TypeError`` for a non-``int`` value for `para` (``float``) """ |
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with pytest.raises(TypeError): |
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wrap(3.14, 4, 80) |
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def test_wrap_bad_m_type_str(): |
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""" Test that :func:`lib.util.wrap` raises a ``TypeError`` for a non-``int`` value for `m` (``str``) """ |
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with pytest.raises(TypeError): |
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wrap("paragraph I be...", "bad", 80) |
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def test_wrap_bad_m_type_float(): |
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""" Test that :func:`lib.util.wrap` raises a ``TypeError`` for a non-``int`` value for `m` (``float``) """ |
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with pytest.raises(TypeError): |
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wrap("paragraph I be...", 3.14, 80) |
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def test_wrap_bad_m_negative(): |
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""" Test that :func:`lib.util.wrap` raises a ``ValueError`` for a :math:`m \\lt 0` """ |
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with pytest.raises(ValueError): |
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wrap("paragraph I be...", -14, 80) |
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def test_wrap_bad_n_type_str(): |
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""" Test that :func:`lib.util.wrap` raises a ``TypeError`` for a non-``int`` value for `n` (``str``) """ |
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with pytest.raises(TypeError): |
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wrap("paragraph I be...", 4, "bad") |
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def test_wrap_bad_n_type_float(): |
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""" Test that :func:`lib.util.wrap` raises a ``TypeError`` for a non-``int`` value for `n` (``float``) """ |
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with pytest.raises(TypeError): |
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wrap("paragraph I be...", 4, 3.14) |
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def test_wrap_bad_n_zero(): |
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""" Test that :func:`lib.util.wrap` raises a ``ValueError`` for :math:`n = 0` """ |
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with pytest.raises(ValueError): |
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wrap("paragraph I be...", 4, 0) |
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def test_load_dataset_correctness(): |
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""" Test the correctness of :func:`lib.util.load_dataset` by examining datatypes of outputs """ |
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for elt in load_dataset("general", "primes", data_type=int): |
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assert isinstance(elt, int), "wrong type" |
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def test_load_dataset_bad_root_type_float(): |
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""" Test that :func:`lib.util.load_dataset` raises a ``TypeError`` for a non-``str`` value for `root` (``float``) |
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""" |
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with pytest.raises(TypeError): |
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load_dataset(3.14, "primes") |
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def test_load_dataset_bad_root_missing(): |
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""" Test that :func:`lib.util.load_dataset` raises a ``FileNotFoundError`` for a non-existent directory `root` """ |
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with pytest.raises(FileNotFoundError): |
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load_dataset("i_dont_exist", "primes") |
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def test_load_dataset_bad_dataset_type_float(): |
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""" Test that :func:`lib.util.load_dataset` raises a ``TypeError`` for a non-``str`` value for `dataset` (``float``) |
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""" |
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with pytest.raises(TypeError): |
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load_dataset("general", 3.14) |
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def test_load_dataset_bad_dataset_missing(): |
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""" Test that :func:`lib.util.load_dataset` raises a ``FileNotFoundError`` for a non-existent file `dataset` """ |
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with pytest.raises(FileNotFoundError): |
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load_dataset("general", "3.14") |
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def test_load_dataset_bad_separator_type_float(): |
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""" Test that :func:`lib.util.load_dataset` raises a ``TypeError`` for a non-``str`` value for `separator` |
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(``float``) |
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""" |
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with pytest.raises(TypeError): |
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load_dataset("general", "primes", separator=12.34) |
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def test_load_dataset_bad_data_type(): |
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""" Test that :func:`lib.util.load_dataset` raises a ``TypeError`` for a non-``type`` value for `data_type` |
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(``int``) |
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""" |
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with pytest.raises(TypeError): |
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load_dataset("general", "primes", data_type=7) |
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