def test_paired_raise_error():
"""Test the raise of the ValueError exception for paired P/R/F."""
y = np.array([1, 2, 1, 3, 2, 4, 5, 4])
# test raise when not 1d shape
y = y.reshape(2, 4)
with pytest.raises(ValueError):
paired_precision_recall_fscore(y, y)
# test raise when different size of elements
y = y.reshape(8, 1)
with pytest.raises(ValueError):
paired_precision_recall_fscore(y[1:], y[2:])
# test error raise when labels_true is empty
with pytest.raises(ValueError):
paired_precision_recall_fscore(y, [])
# test error raise when labels_pred is empty
with pytest.raises(ValueError):
paired_precision_recall_fscore([], y)
# test error raise when both inputs are empty
with pytest.raises(ValueError):
paired_precision_recall_fscore([], [])
def test_paired_label_invariability():
"""Test that paired P/R/F values are label invariant."""
y = [1, 2, 1, 3, 2, 4, 5, 4]
y_prime_invariant = [3, 6, 6, 5, 6, 2, 4, 2]
y_prime = [2, 3, 3, 4, 3, 5, 1, 5]
assert_equal(paired_precision_recall_fscore(y, y_prime),
paired_precision_recall_fscore(y, y_prime_invariant))
def test_paired_raise_error():
"""Test the raise of the ValueError exception for paired P/R/F."""
y = np.array([1, 2, 1, 3, 2, 4, 5, 4])
# test raise when not 1d shape
y = y.reshape(2, 4)
with pytest.raises(ValueError):
paired_precision_recall_fscore(y, y)
# test raise when different size of elements
y = y.reshape(8, 1)
with pytest.raises(ValueError):
paired_precision_recall_fscore(y[1:], y[2:])
# test error raise when labels_true is empty
with pytest.raises(ValueError):
paired_precision_recall_fscore(y, [])
# test error raise when labels_pred is empty
with pytest.raises(ValueError):
paired_precision_recall_fscore([], y)
# test error raise when both inputs are empty
with pytest.raises(ValueError):
paired_precision_recall_fscore([], [])
def test_paired_label_invariability():
"""Test that paired P/R/F values are label invariant."""
y = [1, 2, 1, 3, 2, 4, 5, 4]
y_prime_invariant = [3, 6, 6, 5, 6, 2, 4, 2]
y_prime = [2, 3, 3, 4, 3, 5, 1, 5]
assert_equal(paired_precision_recall_fscore(y, y_prime),
paired_precision_recall_fscore(y, y_prime_invariant))
def test_paired_precision_recall_fscore():
"""Test the results of paired_precision_recall_fscore."""
# test for border case where score is maximum
y = [1, 2, 1, 3, 2, 4, 5, 4]
assert_equal(paired_precision_recall_fscore(y, y), (1, 1, 1))
# test for border case where score is minimum
y_true = [1, 2, 1, 3, 2, 4, 5, 4]
y_pred = [1, 1, 2, 2, 3, 3, 4, 4]
assert_equal(paired_precision_recall_fscore(y_true, y_pred), (0, 0, 0))
def test_paired_precision_recall_fscore():
"""Test the results of paired_precision_recall_fscore."""
# test for border case where score is maximum
y = [1, 2, 1, 3, 2, 4, 5, 4]
assert_equal(paired_precision_recall_fscore(y, y), (1, 1, 1))
# test for border case where score is minimum
y_true = [1, 2, 1, 3, 2, 4, 5, 4]
y_pred = [1, 1, 2, 2, 3, 3, 4, 4]
assert_equal(paired_precision_recall_fscore(y_true, y_pred), (0, 0, 0))
