add curves fuse test on step model

Author: nicolaslg

test_link/test_curves_fuse.py

@@ -0,0 +1,14 @@
+import os
+import pyMagix3D as Mgx3D
+
+step_file_name = "mambo/Simple/S45.step"
+
+def test_curves_fuse_s45():
+    ctx = Mgx3D.getStdContext()
+    ctx.clearSession() # Clean the session after the previous test
+    gm = ctx.getGeomManager ()
+    tm = ctx.getTopoManager ()
+
+    ctx.setLengthUnit(Mgx3D.Unit.meter)
+    gm.importSTEP(step_file_name)
+    assert gm.getNbVolumes()==1