Adding test to read Manifold.

Author: unhyperbolic

setup.py

@@ -830,7 +830,7 @@ class TwisterCoreExtensionSpec:
            'snappy/raytracing/shaders' : ['*.glsl', '*.png'],
            'snappy/raytracing/zoom_slider': ['*.png', '*.gif'],
            'snappy/raytracing/zoom_slider': ['*.png'],
-           'snappy/tests/files': ['*.orb'],
+           'snappy/tests/files': ['*.orb', '*.tri'],
            'snappy/dev/vericlosed/orb' : ['orb_solution_for_snappea_finite_triangulation_mac'],
        },
        package_dir = {

src/snappy/tests/files/example_m004.tri

@@ -0,0 +1,28 @@
+% Triangulation
+m004
+geometric_solution  2.02988321
+oriented_manifold
+CS_unknown
+
+1 0
+    torus   0.000000000000   0.000000000000
+
+2
+   1    1    1    1 
+ 0132 1230 2310 2103
+   0    0    0    0 
+  0  0  0  0  0  0  0  0 -1  1  0  0  0  0  0  0
+  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0
+  0 -1  0  1  1  0 -1  0  0  1  0 -1 -1  0  1  0
+  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0
+  0.500000000000   0.866025403784
+
+   0    0    0    0 
+ 0132 3201 3012 2103
+   0    0    0    0 
+  0  0  0  0  0  0  0  0  0  0  0  0  1  0 -1  0
+  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0
+  0 -1  0  1 -1  0  1  0  1  0  0 -1  0  1 -1  0
+  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0
+  0.500000000000   0.866025403784
+

src/snappy/tests/io.py

@@ -0,0 +1,14 @@
+"""
+
+>>> M = Manifold(os.path.join(test_files_paths[0], 'example_m004.tri'))
+>>> M.triangulation_isosig()
+'cPcbbbiht_BaCB'
+
+"""
+
+if not __doc__:
+    raise Exception("doc string with tests was not recognized.")
+
+import os
+from .. import Manifold
+from .files import __path__ as test_files_paths

src/snappy/tests/test.py

@@ -1,8 +1,10 @@
 from snappy import testing
 import snappy.tests
+import snappy.tests.io
 import snappy.tests.orb
 
 modules = [
+    snappy.tests.io,
     snappy.tests.orb
 ]