| 26 | |
| 27 | |
| 28 | def test_sparse_vector(): |
| 29 | sv = sparse_vector() |
| 30 | sv.append(pair(3, .1)) |
| 31 | sv.append(pair(3, .2)) |
| 32 | sv.append(pair(2, .3)) |
| 33 | sv.append(pair(1, .4)) |
| 34 | |
| 35 | assert len(sv) == 4 |
| 36 | make_sparse_vector(sv) |
| 37 | |
| 38 | assert len(sv) == 3 |
| 39 | assert sv[0].first == 1 |
| 40 | assert sv[0].second == .4 |
| 41 | assert sv[1].first == 2 |
| 42 | assert sv[1].second == .3 |
| 43 | assert sv[2].first == 3 |
| 44 | assert sv[2].second == approx(.3) |
| 45 | |
| 46 | assert str(sv) == "1: 0.4\n2: 0.3\n3: 0.3" |
| 47 | assert repr(sv) == "< dlib.sparse_vector containing: \n1: 0.4\n2: 0.3\n3: 0.3 >" |
| 48 | |
| 49 | |
| 50 | def test_sparse_vectors(): |