| """Unit tests for layout functions.""" |
| import sys |
| from nose import SkipTest |
| from nose.tools import assert_equal |
| import networkx as nx |
| |
| class TestLayout(object): |
| numpy=1 # nosetests attribute, use nosetests -a 'not numpy' to skip test |
| @classmethod |
| def setupClass(cls): |
| global numpy |
| try: |
| import numpy |
| except ImportError: |
| raise SkipTest('numpy not available.') |
| |
| |
| def setUp(self): |
| self.Gi=nx.grid_2d_graph(5,5) |
| self.Gs=nx.Graph() |
| self.Gs.add_path('abcdef') |
| self.bigG=nx.grid_2d_graph(25,25) #bigger than 500 nodes for sparse |
| |
| def test_smoke_int(self): |
| G=self.Gi |
| vpos=nx.random_layout(G) |
| vpos=nx.circular_layout(G) |
| vpos=nx.spring_layout(G) |
| vpos=nx.fruchterman_reingold_layout(G) |
| vpos=nx.spectral_layout(G) |
| vpos=nx.spectral_layout(self.bigG) |
| vpos=nx.shell_layout(G) |
| |
| def test_smoke_string(self): |
| G=self.Gs |
| vpos=nx.random_layout(G) |
| vpos=nx.circular_layout(G) |
| vpos=nx.spring_layout(G) |
| vpos=nx.fruchterman_reingold_layout(G) |
| vpos=nx.spectral_layout(G) |
| vpos=nx.shell_layout(G) |
| |
| |
| def test_adjacency_interface_numpy(self): |
| A=nx.to_numpy_matrix(self.Gs) |
| pos=nx.drawing.layout._fruchterman_reingold(A) |
| pos=nx.drawing.layout._fruchterman_reingold(A,dim=3) |
| assert_equal(pos.shape,(6,3)) |
| |
| def test_adjacency_interface_scipy(self): |
| try: |
| import scipy |
| except ImportError: |
| raise SkipTest('scipy not available.') |
| |
| A=nx.to_scipy_sparse_matrix(self.Gs,dtype='f') |
| pos=nx.drawing.layout._sparse_fruchterman_reingold(A) |
| pos=nx.drawing.layout._sparse_spectral(A) |
| |
| pos=nx.drawing.layout._sparse_fruchterman_reingold(A,dim=3) |
| assert_equal(pos.shape,(6,3)) |
