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# This scripts generate the random distributions for testing purposes.
# You can copy this tests to iarray by hand:
# $ cp test_*.iarray $IARRAY_DIR/tests/data/
import pytest
import iarray as ia
import numpy as np
rand_data = [
([20, 20, 20], [10, 12, 5], [2, 3, 2], np.float64, 0),
([12, 31, 11, 22], [4, 3, 5, 2], [2, 2, 2, 2], np.float32, 12),
([10, 12, 5], [5, 6, 5], [5, 3, 5], np.float64, 34567865),
([4, 3, 5, 2], [4, 3, 5, 2], [2, 3, 5, 1], np.float32, 24356),
]
# Rand
@pytest.mark.parametrize(
"shape, chunks, blocks, dtype, seed",
rand_data,
)
def test_rand(shape, chunks, blocks, dtype, seed):
store = ia.Store(chunks, blocks)
a = ia.random.random_sample(shape, store=store, seed=seed, dtype=dtype)
b = ia.random.random_sample(shape, store=store, seed=seed, dtype=dtype)
np.testing.assert_array_equal(ia.iarray2numpy(a), ia.iarray2numpy(b))
# Check that the default seed is None
c = ia.random.random_sample(shape, store=store, dtype=dtype)
assert np.alltrue(ia.iarray2numpy(b) != ia.iarray2numpy(c))
# Randn
@pytest.mark.parametrize(
"shape, chunks, blocks, dtype, seed",
rand_data,
)
def test_randn(shape, chunks, blocks, dtype, seed):
store = ia.Store(chunks, blocks)
a = ia.random.standard_normal(shape, store=store, seed=seed, dtype=dtype)
b = ia.random.standard_normal(shape, store=store, seed=seed, dtype=dtype)
np.testing.assert_array_equal(ia.iarray2numpy(a), ia.iarray2numpy(b))
# Beta
@pytest.mark.parametrize(
"alpha, beta",
[
(3, 4),
(0.1, 5),
],
)
@pytest.mark.parametrize(
"shape, chunks, blocks, dtype, seed",
rand_data,
)
def test_beta(alpha, beta, shape, chunks, blocks, dtype, seed):
store = ia.Store(chunks, blocks)
a = ia.random.beta(shape, alpha, beta, store=store, seed=seed, dtype=dtype)
b = ia.random.beta(shape, alpha, beta, store=store, seed=seed, dtype=dtype)
np.testing.assert_array_equal(ia.iarray2numpy(a), ia.iarray2numpy(b))
# Lognormal
@pytest.mark.parametrize(
"mu, sigma",
[
(3, 4),
(3, 0.2),
],
)
@pytest.mark.parametrize(
"shape, chunks, blocks, dtype, seed",
rand_data,
)
def test_lognormal(mu, sigma, shape, chunks, blocks, dtype, seed):
store = ia.Store(chunks, blocks)
a = ia.random.lognormal(shape, mu, sigma, store=store, seed=seed, dtype=dtype)
b = ia.random.lognormal(shape, mu, sigma, store=store, seed=seed, dtype=dtype)
np.testing.assert_array_equal(ia.iarray2numpy(a), ia.iarray2numpy(b))
# Exponential
@pytest.mark.parametrize(
"beta",
[
3,
0.1,
],
)
@pytest.mark.parametrize(
"shape, chunks, blocks, dtype, seed",
rand_data,
)
def test_exponential(beta, shape, chunks, blocks, dtype, seed):
store = ia.Store(chunks, blocks)
a = ia.random.exponential(shape, beta, store=store, seed=seed, dtype=dtype)
b = ia.random.exponential(shape, beta, store=store, seed=seed, dtype=dtype)
np.testing.assert_array_equal(ia.iarray2numpy(a), ia.iarray2numpy(b))
# Uniform
@pytest.mark.parametrize(
"a_, b_",
[
(-3, -2),
(0.5, 1000),
],
)
@pytest.mark.parametrize(
"shape, chunks, blocks, dtype, seed",
rand_data,
)
def test_uniform(a_, b_, shape, chunks, blocks, dtype, seed):
store = ia.Store(chunks, blocks)
a = ia.random.uniform(shape, a_, b_, store=store, seed=seed, dtype=dtype)
b = ia.random.uniform(shape, a_, b_, store=store, seed=seed, dtype=dtype)
np.testing.assert_array_equal(ia.iarray2numpy(a), ia.iarray2numpy(b))
# Normal
@pytest.mark.parametrize(
"mu, sigma",
[
(0.1, 0.2),
(-10, 0.01),
],
)
@pytest.mark.parametrize(
"shape, chunks, blocks, dtype, seed",
rand_data,
)
def test_normal(mu, sigma, shape, chunks, blocks, dtype, seed):
store = ia.Store(chunks, blocks)
a = ia.random.normal(shape, mu, sigma, store=store, seed=seed, dtype=dtype)
b = ia.random.normal(shape, mu, sigma, store=store, seed=seed, dtype=dtype)
np.testing.assert_array_equal(ia.iarray2numpy(a), ia.iarray2numpy(b))
# Bernoulli (compare against np.random.binomial)
@pytest.mark.parametrize(
"p",
[0.01, 0.15, 0.6],
)
@pytest.mark.parametrize(
"shape, chunks, blocks, dtype, seed",
rand_data,
)
def test_bernoulli(p, shape, chunks, blocks, dtype, seed):
store = ia.Store(chunks, blocks)
a = ia.random.bernoulli(shape, p, store=store, seed=seed, dtype=dtype)
b = ia.random.bernoulli(shape, p, store=store, seed=seed, dtype=dtype)
np.testing.assert_array_equal(ia.iarray2numpy(a), ia.iarray2numpy(b))
# Binomial
@pytest.mark.parametrize(
"n, p",
[
(10, 0.01),
(5, 0.6),
],
)
@pytest.mark.parametrize(
"shape, chunks, blocks, dtype, seed",
rand_data,
)
def test_binomial(n, p, shape, chunks, blocks, dtype, seed):
store = ia.Store(chunks, blocks)
a = ia.random.binomial(shape, n, p, store=store, seed=seed, dtype=dtype)
b = ia.random.binomial(shape, n, p, store=store, seed=seed, dtype=dtype)
np.testing.assert_array_equal(ia.iarray2numpy(a), ia.iarray2numpy(b))
# Poisson
@pytest.mark.parametrize(
"lamb",
[5, 0.15],
)
@pytest.mark.parametrize(
"shape, chunks, blocks, dtype, seed",
rand_data,
)
def test_poisson(lamb, shape, chunks, blocks, dtype, seed):
store = ia.Store(chunks, blocks)
a = ia.random.poisson(shape, lamb, store=store, seed=seed, dtype=dtype)
b = ia.random.poisson(shape, lamb, store=store, seed=seed, dtype=dtype)
np.testing.assert_array_equal(ia.iarray2numpy(a), ia.iarray2numpy(b))