Exemple #1
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def test_tuple_integer_limits(row_limits, col_limits, weights, prob, seed):
    """Verify that `crossover` produces a valid individual where the lower and
    upper column limits are tuple and integer respectively."""

    distributions = [Gamma, Normal, Poisson]
    families = [Family(distribution) for distribution in distributions]
    random_state = np.random.RandomState(seed)

    parents = [
        create_individual(
            row_limits, col_limits, families, weights, random_state
        )
        for _ in [0, 1]
    ]

    individual = crossover(*parents, col_limits, families, random_state, prob)

    _common_asserts(individual, *parents)

    for family, lower_limit in zip(families, col_limits[0]):
        count = sum(pdf.family is family for pdf in individual.metadata)
        assert count >= lower_limit
Exemple #2
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def test_tuple_integer_limits(row_limits, col_limits, weights, seed):
    """Create an individual with tuple lower limits and integer upper limits on
    the columns. Verify the individual is valid and of a reasonable shape and
    does not exceed the lower bounds."""

    distributions = [Gamma, Normal, Poisson]
    families = [Family(distribution) for distribution in distributions]

    state = np.random.RandomState(seed)

    individual = create_individual(
        row_limits, col_limits, families, weights, state
    )

    _common_asserts(individual, state, families)

    dataframe, metadata = individual
    assert row_limits[0] <= dataframe.shape[0] <= row_limits[1]
    assert sum(col_limits[0]) <= dataframe.shape[1] <= col_limits[1]

    for family, lower_limit in zip(families, col_limits[0]):
        count = sum([isinstance(pdf, family.distribution) for pdf in metadata])
        assert count >= lower_limit
Exemple #3
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def test_tuple_limits(row_limits, col_limits, weights, seed):
    """Create an individual with tuple column limits. Verify the individual is
    valid and of a reasonable shape and does not exceed either of the column
    bounds."""

    distributions = [Gamma, Normal, Poisson]
    families = [Family(distribution) for distribution in distributions]

    state = np.random.RandomState(seed)

    individual = create_individual(
        row_limits, col_limits, families, weights, state
    )

    _common_asserts(individual, state, families)

    dataframe, metadata = individual
    assert row_limits[0] <= dataframe.shape[0] <= row_limits[1]
    assert sum(col_limits[0]) <= dataframe.shape[1] <= sum(col_limits[1])

    for i, family in enumerate(families):
        count = sum([isinstance(pdf, family.distribution) for pdf in metadata])
        assert col_limits[0][i] <= count <= col_limits[1][i]
Exemple #4
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def test_load(distribution):
    """ Test that a family can be created from a cache. """

    family = Family(distribution)
    family.add_subtype()
    subtype = family.subtypes[0]
    family.save(".testcache")

    pickled = Family.load(distribution, root=".testcache")
    pickled_subtype = pickled.subtypes[0]

    assert isinstance(pickled, Family)
    assert pickled.distribution is distribution
    assert pickled.subtype_id == 1
    assert pickled.subtypes == {0: pickled_subtype}

    assert issubclass(pickled_subtype, distribution)
    assert pickled_subtype.__name__ == subtype.__name__
    assert pickled_subtype.name == subtype.name
    assert pickled_subtype.dtype == subtype.dtype
    assert pickled_subtype.subtype_id == 0
    assert pickled_subtype.family is pickled

    assert pickled_subtype.hard_limits == subtype.hard_limits
    assert pickled_subtype.param_limits == subtype.param_limits
    assert pickled_subtype.__init__ is subtype.__init__
    assert pickled_subtype.__repr__ is subtype.__repr__
    assert pickled_subtype.sample is subtype.sample

    for fpart, ppart in zip(family.random_state.get_state(),
                            pickled.random_state.get_state()):
        try:
            assert all(fpart == ppart)
        except TypeError:
            assert fpart == ppart

    os.system("rm -r .testcache")