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test_acquisition.py
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test_acquisition.py
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# test_acquisition
# author: Jungtaek Kim (jtkim@postech.ac.kr)
# last updated: June 20, 2018
import numpy as np
import pytest
from bayeso import acquisition
TEST_EPSILON = 1e-5
def test_pi():
with pytest.raises(AssertionError) as error:
acquisition.pi('abc', np.ones(10), np.zeros((5, 1)))
with pytest.raises(AssertionError) as error:
acquisition.pi(np.ones(10), 'abc', np.zeros((5, 1)))
with pytest.raises(AssertionError) as error:
acquisition.pi(np.ones(10), np.ones(10), 'abc')
with pytest.raises(AssertionError) as error:
acquisition.pi(np.ones(10), np.ones(10), np.zeros((5, 1)), 1)
with pytest.raises(AssertionError) as error:
acquisition.pi(np.ones(5), np.ones(10), np.zeros((5, 1)))
with pytest.raises(AssertionError) as error:
acquisition.pi(np.ones(10), np.ones(10), np.zeros(5))
with pytest.raises(AssertionError) as error:
acquisition.pi(np.ones(10), np.ones((10, 1)), np.zeros((5, 1)))
with pytest.raises(AssertionError) as error:
acquisition.pi(np.ones((10, 1)), np.ones(10), np.zeros((5, 1)))
val_acq = acquisition.pi(np.arange(0, 10), np.ones(10), np.zeros((5, 1)))
truth_val_acq = np.array([5.00000000e-01, 1.58657674e-01, 2.27512118e-02, 1.35003099e-03, 3.16765954e-05, 2.86725916e-07, 9.86952260e-10, 1.28045212e-12, 6.22500364e-16, 1.12951395e-19])
assert (np.abs(val_acq - truth_val_acq) < TEST_EPSILON).all()
def test_ei():
with pytest.raises(AssertionError) as error:
acquisition.ei('abc', np.ones(10), np.zeros((5, 1)))
with pytest.raises(AssertionError) as error:
acquisition.ei(np.ones(10), 'abc', np.zeros((5, 1)))
with pytest.raises(AssertionError) as error:
acquisition.ei(np.ones(10), np.ones(10), 'abc')
with pytest.raises(AssertionError) as error:
acquisition.ei(np.ones(10), np.ones(10), np.zeros((5, 1)), 1)
with pytest.raises(AssertionError) as error:
acquisition.ei(np.ones(5), np.ones(10), np.zeros((5, 1)))
with pytest.raises(AssertionError) as error:
acquisition.ei(np.ones(10), np.ones(10), np.zeros(5))
with pytest.raises(AssertionError) as error:
acquisition.ei(np.ones(10), np.ones((10, 1)), np.zeros((5, 1)))
with pytest.raises(AssertionError) as error:
acquisition.ei(np.ones((10, 1)), np.ones(10), np.zeros((5, 1)))
val_acq = acquisition.ei(np.arange(0, 10), np.ones(10), np.zeros((5, 1)))
truth_val_acq = np.array([3.98942280e-01, 8.33154706e-02, 8.49070261e-03, 3.82154315e-04, 7.14525833e-06, 5.34616535e-08, 1.56356969e-10, 1.76032579e-13, 7.55026079e-17, 1.22477876e-20])
assert (np.abs(val_acq - truth_val_acq) < TEST_EPSILON).all()
def test_ucb():
with pytest.raises(AssertionError) as error:
acquisition.ucb('abc', np.ones(10))
with pytest.raises(AssertionError) as error:
acquisition.ucb(np.ones(10), 'abc')
with pytest.raises(AssertionError) as error:
acquisition.ucb(np.ones(10), np.ones(10), kappa='abc')
with pytest.raises(AssertionError) as error:
acquisition.ucb(np.ones(5), np.ones(10))
with pytest.raises(AssertionError) as error:
acquisition.ucb(np.ones(10), np.ones(10), Y_train='abc')
with pytest.raises(AssertionError) as error:
acquisition.ucb(np.ones(10), np.ones(10), Y_train=np.zeros(5))
with pytest.raises(AssertionError) as error:
acquisition.ucb(np.ones(10), np.ones((10, 1)))
with pytest.raises(AssertionError) as error:
acquisition.ucb(np.ones((10, 1)), np.ones(10))
with pytest.raises(AssertionError) as error:
acquisition.ucb(np.ones(10), np.ones(10), is_increased='abc')
val_acq = acquisition.ucb(np.arange(0, 10), np.ones(10), Y_train=np.zeros((5, 1)))
truth_val_acq = np.array([3.21887582, 2.21887582, 1.21887582, 0.21887582, -0.78112418, -1.78112418, -2.78112418, -3.78112418, -4.78112418, -5.78112418])
assert (np.abs(val_acq - truth_val_acq) < TEST_EPSILON).all()
val_acq = acquisition.ucb(np.arange(0, 10), np.ones(10))
truth_val_acq = np.array([2.0, 1.0, 0.0, -1.0, -2.0, -3.0, -4.0, -5.0, -6.0, -7.0])
assert (np.abs(val_acq - truth_val_acq) < TEST_EPSILON).all()
def test_aei():
with pytest.raises(AssertionError) as error:
acquisition.aei('abc', np.ones(10), np.zeros((5, 1)), 1.0)
with pytest.raises(AssertionError) as error:
acquisition.aei(np.ones(10), 'abc', np.zeros((5, 1)), 1.0)
with pytest.raises(AssertionError) as error:
acquisition.aei(np.ones(10), np.ones(10), 'abc', 1.0)
with pytest.raises(AssertionError) as error:
acquisition.aei(np.ones(10), np.ones(10), np.zeros((5, 1)), 'abc')
with pytest.raises(AssertionError) as error:
acquisition.aei(np.ones(10), np.ones(10), np.zeros((5, 1)), 1.0, jitter=1)
with pytest.raises(AssertionError) as error:
acquisition.aei(np.ones(5), np.ones(10), np.zeros((5, 1)), 1.0)
with pytest.raises(AssertionError) as error:
acquisition.aei(np.ones(10), np.ones(10), np.zeros(5), 1.0)
with pytest.raises(AssertionError) as error:
acquisition.aei(np.ones(10), np.ones((10, 1)), np.zeros((5, 1)), 1.0)
with pytest.raises(AssertionError) as error:
acquisition.aei(np.ones((10, 1)), np.ones(10), np.zeros((5, 1)), 1.0)
val_acq = acquisition.aei(np.arange(0, 10), np.ones(10), np.zeros((5, 1)), 1.0)
truth_val_acq = np.array([1.16847489e-01, 2.44025364e-02, 2.48686922e-03, 1.11930407e-04, 2.09279771e-06, 1.56585558e-08, 4.57958958e-11, 5.15587486e-14, 2.21142019e-17, 3.58729395e-21])
assert (np.abs(val_acq - truth_val_acq) < TEST_EPSILON).all()
def test_pure_exploit():
with pytest.raises(AssertionError) as error:
acquisition.pure_exploit('abc')
with pytest.raises(AssertionError) as error:
acquisition.pure_exploit(np.ones((10, 1)))
with pytest.raises(AssertionError) as error:
acquisition.pure_exploit(np.ones(10), pred_std='abc')
with pytest.raises(AssertionError) as error:
acquisition.pure_exploit(np.ones(10), Y_train='abc')
with pytest.raises(AssertionError) as error:
acquisition.pure_exploit(np.ones(10), pred_std=np.ones((10, 1)))
with pytest.raises(AssertionError) as error:
acquisition.pure_exploit(np.ones(10), pred_std=np.ones(20))
with pytest.raises(AssertionError) as error:
acquisition.pure_exploit(np.ones(10), Y_train=np.ones(20))
val_acq = acquisition.pure_exploit(np.arange(0, 10))
truth_val_acq = -np.arange(0, 10)
assert (np.abs(val_acq - truth_val_acq) < TEST_EPSILON).all()
def test_pure_explore():
with pytest.raises(AssertionError) as error:
acquisition.pure_explore('abc')
with pytest.raises(AssertionError) as error:
acquisition.pure_explore(np.ones((10, 1)))
with pytest.raises(AssertionError) as error:
acquisition.pure_explore(np.ones(10), pred_mean='abc')
with pytest.raises(AssertionError) as error:
acquisition.pure_explore(np.ones(10), Y_train='abc')
with pytest.raises(AssertionError) as error:
acquisition.pure_explore(np.ones(10), pred_mean=np.ones((10, 1)))
with pytest.raises(AssertionError) as error:
acquisition.pure_explore(np.ones(10), pred_mean=np.ones(20))
with pytest.raises(AssertionError) as error:
acquisition.pure_explore(np.ones(10), Y_train=np.ones(20))
val_acq = acquisition.pure_explore(np.arange(0, 10))
truth_val_acq = np.arange(0, 10)
assert (np.abs(val_acq - truth_val_acq) < TEST_EPSILON).all()