split node tests into standalone files

tests/node_tests/test_mask_operations.py

@@ -0,0 +1,44 @@
+import numpy as np
+
+
+def test_mask_operations():
+    from backend.nodes.mask_operations import MaskOperations
+    node = MaskOperations()
+
+    a = np.zeros((64, 64), dtype=np.uint8)
+    a[10:30, 10:30] = 255
+    b = np.zeros((64, 64), dtype=np.uint8)
+    b[20:40, 20:40] = 255
+
+    result_and, = node.process(a, b, operation="and")
+    assert np.all(result_and[20:30, 20:30] == 255)
+    assert result_and[15, 15] == 0
+    assert result_and[35, 35] == 0
+
+    result_or, = node.process(a, b, operation="or")
+    assert result_or[15, 15] == 255
+    assert result_or[35, 35] == 255
+    assert result_or[25, 25] == 255
+    assert result_or[5, 5] == 0
+
+    result_xor, = node.process(a, b, operation="xor")
+    assert result_xor[15, 15] == 255
+    assert result_xor[35, 35] == 255
+    assert result_xor[25, 25] == 0
+
+    result_sub, = node.process(a, b, operation="a_minus_b")
+    assert result_sub[15, 15] == 255
+    assert result_sub[25, 25] == 0
+    assert result_sub[35, 35] == 0
+
+    result_nand, = node.process(a, b, operation="nand")
+    assert result_nand[15, 15] == 255
+    assert result_nand[35, 35] == 255
+    assert result_nand[25, 25] == 0
+    assert result_nand[5, 5] == 255
+
+    result_xnor, = node.process(a, b, operation="xnor")
+    assert result_xnor[25, 25] == 255
+    assert result_xnor[5, 5] == 255
+    assert result_xnor[15, 15] == 0
+    assert result_xnor[35, 35] == 0