diff --git a/tests/python_tests/box2d_test.py b/tests/python_tests/box2d_test.py
index ef7a2f95b..8fa9b20b5 100644
--- a/tests/python_tests/box2d_test.py
+++ b/tests/python_tests/box2d_test.py
@@ -100,8 +100,34 @@ def test_envelope_static_init():
     eq_(c.y, 150)
 
 def test_envelope_multiplication():
+    # no width then no impact of multiplication
+    a = mapnik.Box2d(100, 100, 100, 100)
+    a *= 5
+    eq_(a.minx,100)
+    eq_(a.miny,100)
+    eq_(a.maxx,100)
+    eq_(a.maxy,100)
+
+    a = mapnik.Box2d(100.0, 100.0, 100.0, 100.0)
+    a *= 5
+    eq_(a.minx,100)
+    eq_(a.miny,100)
+    eq_(a.maxx,100)
+    eq_(a.maxy,100)
+
+    a = mapnik.Box2d(100.0, 100.0, 100.001, 100.001)
+    a *= 5
+    assert_almost_equal(a.minx, 99.9979, places=3)
+    assert_almost_equal(a.miny, 99.9979, places=3)
+    assert_almost_equal(a.maxx, 100.0030, places=3)
+    assert_almost_equal(a.maxy, 100.0030, places=3)
+
     e = mapnik.Box2d(100, 100, 200, 200)
     e *= 2
+    eq_(e.minx,50)
+    eq_(e.miny,50)
+    eq_(e.maxx,250)
+    eq_(e.maxy,250)
 
     assert_true(e.contains(50, 50))
     assert_true(e.contains(50, 250))
@@ -148,5 +174,4 @@ def test_envelope_clipping():
     eq_(e1,e2)
 
 if __name__ == "__main__":
-    setup()
     [eval(run)() for run in dir() if 'test_' in run]