fix test

Author: rdeits

test/meshes.jl

@@ -157,6 +157,11 @@ end
 end
 
 @testset "construction" begin
+    VT = vertextype(GLNormalMesh)
+    FT = facetype(GLNormalMesh)
+    vs = [VT(0., 0, 0), VT(1., 0, 0), VT(0., 1, 0)]
+    fs = [FT(1, 2, 3)]
+
     # test for https://github.com/JuliaGeometry/GeometryTypes.jl/issues/92
     m = HomogenousMesh(vs, fs)
     @test HomogenousMesh(m) == m