maxvalue binding

tests/maths.py

@@ -0,0 +1,12 @@
+"""test of core functions """
+
+import floatimg
+
+def test_maxvaalue():
+    width = 5
+    height = 5
+
+    img = floatimg.create_rgb(width, height)
+    color = (255.0, 255.0, 255.0)
+    img.put(2,2, color)
+    assert img.maxvalue() == 255.0ls