def test_vector_intersect_with_different_length():
vector1, vector2 = FeatureVector(10), FeatureVector(14)
try:
vector1.intersect(vector2)
assert (
False
), "Vector intersection between two vectors with different length is illegal"
except:
pass
def test_vector_intersect():
vector1, vector2 = FeatureVector(10), FeatureVector(10)
vector1[0] = 10
vector1[4] = 2
vector1[7] = 8
vector2[0] = 4
vector2[3] = 7
vector2[7] = 12
vector = vector1.intersect(vector2)
# 0:4, 7: 12
assert vector[0] == 4
assert vector[7] == 8
for index in filter(lambda index: index not in [0, 7], range(10)):
assert vector[index] == 0