diff --git a/Tests/ttLib/tables/_g_l_y_f_test.py b/Tests/ttLib/tables/_g_l_y_f_test.py
new file mode 100644
index 000000000..0e3005b54
--- /dev/null
+++ b/Tests/ttLib/tables/_g_l_y_f_test.py
@@ -0,0 +1,137 @@
+from __future__ import print_function, division, absolute_import
+from fontTools.misc.py23 import *
+from fontTools.ttLib.tables._g_l_y_f import GlyphCoordinates
+import sys
+import pytest
+
+
+class GlyphCoordinatesTest(object):
+
+    def test_translate(self):
+        g = GlyphCoordinates([(1,2)])
+        g.translate((.5,0))
+        assert g == GlyphCoordinates([(1.5,2.0)])
+
+    def test_scale(self):
+        g = GlyphCoordinates([(1,2)])
+        g.scale((.5,0))
+        assert g == GlyphCoordinates([(0.5,0.0)])
+
+    def test_transform(self):
+        g = GlyphCoordinates([(1,2)])
+        g.transform(((.5,0),(.2,.5)))
+        assert g[0] == GlyphCoordinates([(0.9,1.0)])[0]
+
+    def test__eq__(self):
+        g = GlyphCoordinates([(1,2)])
+        g2 = GlyphCoordinates([(1.0,2)])
+        g3 = GlyphCoordinates([(1.5,2)])
+        assert g == g2
+        assert not g == g3
+        assert not g2 == g3
+        assert not g == object()
+
+    def test__ne__(self):
+        g = GlyphCoordinates([(1,2)])
+        g2 = GlyphCoordinates([(1.0,2)])
+        g3 = GlyphCoordinates([(1.5,2)])
+        assert not (g != g2)
+        assert g != g3
+        assert g2 != g3
+        assert g != object()
+
+    def test__pos__(self):
+        g = GlyphCoordinates([(1,2)])
+        g2 = +g
+        assert g == g2
+
+    def test__neg__(self):
+        g = GlyphCoordinates([(1,2)])
+        g2 = -g
+        assert g2 == GlyphCoordinates([(-1, -2)])
+
+    def test__abs__(self):
+        g = GlyphCoordinates([(-1.5,2)])
+        g2 = abs(g)
+        assert g2 == GlyphCoordinates([(1.5,2)])
+
+    @pytest.mark.skipif(sys.version_info[0] < 3,
+                        reason="__round___ requires Python 3")
+    def test__round__(self):
+        g = GlyphCoordinates([(-1.5,2)])
+        g2 = round(g)
+        assert g2 == GlyphCoordinates([(-2,2)])
+
+    def test__add__(self):
+        g1 = GlyphCoordinates([(1,2)])
+        g2 = GlyphCoordinates([(3,4)])
+        g3 = GlyphCoordinates([(4,6)])
+        assert g1 + g2 == g3
+        assert g1 + (1, 1) == GlyphCoordinates([(2,3)])
+        with pytest.raises(TypeError) as excinfo:
+            assert g1 + object()
+        assert 'unsupported operand' in str(excinfo.value)
+
+    def test__sub__(self):
+        g1 = GlyphCoordinates([(1,2)])
+        g2 = GlyphCoordinates([(3,4)])
+        g3 = GlyphCoordinates([(-2,-2)])
+        assert g1 - g2 == g3
+        assert g1 - (1, 1) == GlyphCoordinates([(0,1)])
+        with pytest.raises(TypeError) as excinfo:
+            assert g1 - object()
+        assert 'unsupported operand' in str(excinfo.value)
+
+    def test__rsub__(self):
+        g = GlyphCoordinates([(1,2)])
+        # other + (-self)
+        assert (1, 1) - g == GlyphCoordinates([(0,-1)])
+
+    def test__mul__(self):
+        g = GlyphCoordinates([(1,2)])
+        assert g * 3 == GlyphCoordinates([(3,6)])
+        assert g * (3,2) == GlyphCoordinates([(3,4)])
+        assert g * (1,1) == g
+        with pytest.raises(TypeError) as excinfo:
+            assert g * object()
+        assert 'unsupported operand' in str(excinfo.value)
+
+    def test__truediv__(self):
+        g = GlyphCoordinates([(1,2)])
+        assert g / 2 == GlyphCoordinates([(.5,1)])
+        assert g / (1, 2) == GlyphCoordinates([(1,1)])
+        assert g / (1, 1) == g
+        with pytest.raises(TypeError) as excinfo:
+            assert g / object()
+        assert 'unsupported operand' in str(excinfo.value)
+
+    def test__iadd__(self):
+        g = GlyphCoordinates([(1,2)])
+        g += (.5,0)
+        assert g == GlyphCoordinates([(1.5, 2.0)])
+        g2 = GlyphCoordinates([(3,4)])
+        g += g2
+        assert g == GlyphCoordinates([(4.5, 6.0)])
+
+    def test__isub__(self):
+        g = GlyphCoordinates([(1,2)])
+        g -= (.5, 0)
+        assert g == GlyphCoordinates([(0.5, 2.0)])
+        g2 = GlyphCoordinates([(3,4)])
+        g -= g2
+        assert g == GlyphCoordinates([(-2.5, -2.0)])
+
+    def __test__imul__(self):
+        g = GlyphCoordinates([(1,2)])
+        g *= (2,.5)
+        g *= 2
+        assert g == GlyphCoordinates([(4.0, 2.0)])
+        g = GlyphCoordinates([(1,2)])
+        g *= 2
+        assert g == GlyphCoordinates([(2, 4)])
+
+    def test__itruediv__(self):
+        g = GlyphCoordinates([(1,3)])
+        g /= (.5,1.5)
+        g /= 2
+        assert g == GlyphCoordinates([(1.0, 1.0)])