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add ELU tests #4

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Merged
ddbourgin merged 1 commit into from
Jul 7, 2019
Merged

add ELU tests #4

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39 changes: 39 additions & 0 deletions neural_nets/tests/tests.py
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Original file line number Diff line number Diff line change
Expand Up @@ -467,6 +467,26 @@ def test_sigmoid_activation(N=None):
i += 1


def test_elu_activation(N=None):
from activations import ELU

N = np.inf if N is None else N

i = 0
while i < N:
n_dims = np.random.randint(1, 10)
z = random_tensor((1, n_dims))

alpha = np.random.uniform(0, 10)

mine = ELU(alpha)
gold = lambda z, a: F.elu(torch.from_numpy(z), alpha).numpy()

assert_almost_equal(mine.fn(z), gold(z, alpha))
print("PASSED")
i += 1


def test_softmax_activation(N=None):
from layers import Softmax

Expand Down Expand Up @@ -524,6 +544,25 @@ def test_sigmoid_grad(N=None):
i += 1


def test_elu_grad(N=None):
from activations import ELU

N = np.inf if N is None else N

i = 0
while i < N:
n_ex = np.random.randint(1, 10)
n_dims = np.random.randint(1, 10)
alpha = np.random.uniform(0, 10)
z = random_tensor((n_ex, n_dims))

mine = ELU(alpha)
gold = torch_gradient_generator(F.elu, alpha=alpha)
assert_almost_equal(mine.grad(z), gold(z))
print("PASSED")
i += 1


def test_tanh_grad(N=None):
from activations import Tanh

Expand Down