operator binding

tests/basics.py

@@ -112,3 +112,67 @@ def test_add():
     img.put(0, 0, color)
     img.add(0, 0, color)
     assert img.get(0, 0) == [64.0, 64.0, 64.0]
+
+
+def test_op_add():
+    width, height = 5, 5
+    img = floatimg.create_rgb(width, height)
+    color = (32.0, 32.0, 32.0)
+    img.fill(color)
+    img2 = floatimg.create_rgb(width, height)
+    img2.fill(color)
+    img3 = img + img2
+    for y in range(height):
+        for x in range(width):
+            assert img3.get(x, y) == [64.0, 64.0, 64.0]
+
+
+def test_op_sub():
+    width, height = 5, 5
+    img = floatimg.create_rgb(width, height)
+    color = (32.0, 32.0, 32.0)
+    img.fill(color)
+    img2 = floatimg.create_rgb(width, height)
+    img2.fill(color)
+    img3 = img - img2
+    for y in range(height):
+        for x in range(width):
+            assert img3.get(x, y) == [0.0, 0.0, 0.0]
+
+
+def test_op_mul():
+    width, height = 5, 5
+    img = floatimg.create_rgb(width, height)
+    color = (32.0, 32.0, 32.0)
+    img.fill(color)
+    img2 = floatimg.create_rgb(width, height)
+    img2.fill((2.0, 2.0, 2.0))
+    img3 = img * img2
+    for y in range(height):
+        for x in range(width):
+            assert img3.get(x, y) == [64.0, 64.0, 64.0]
+
+def test_op_min():
+    width, height = 5, 5
+    img = floatimg.create_rgb(width, height)
+    img.fill((32.0, 0.0, 32.0))
+
+    img2 = floatimg.create_rgb(width, height)
+    img2.fill((0.0, 32.0, 0.0))
+    img3 = img.min(img2)
+    for y in range(height):
+        for x in range(width):
+            assert img3.get(x, y) == [0.0, 0.0, 0.0]
+
+
+def test_op_max():
+    width, height = 5, 5
+    img = floatimg.create_rgb(width, height)
+    img.fill((32.0, 0.0, 32.0))
+
+    img2 = floatimg.create_rgb(width, height)
+    img2.fill((0.0, 32.0, 0.0))
+    img3 = img.max(img2)
+    for y in range(height):
+        for x in range(width):
+            assert img3.get(x, y) == [32.0, 32.0, 32.0]