test_activations.py 文件源码

def test_relu():
    '''
    Relu implementation doesn't depend on the value being
    a theano variable. Testing ints, floats and theano tensors.
    '''
    x = K.placeholder(ndim=2)
    f = K.function([x], [activations.relu(x)])

    test_values = get_standard_values()
    result = f([test_values])[0]

    # because no negatives in test values
    assert_allclose(result, test_values, rtol=1e-05)