simplify tests

tests/node_tests/coordinate.py

@@ -1,14 +0,0 @@
-def test_coordinate():
-    from backend.nodes.coordinate import Coordinate
-
-    node = Coordinate()
-
-    result = node.process(x=0.3, y=0.7)
-    assert len(result) == 1
-    assert result[0] == (0.3, 0.7)
-
-    result_zero = node.process(x=0.0, y=0.0)
-    assert result_zero[0] == (0.0, 0.0)
-
-    result_one = node.process(x=1.0, y=1.0)
-    assert result_one[0] == (1.0, 1.0)

tests/node_tests/number.py

@@ -1,10 +0,0 @@
-def test_number():
-    from backend.nodes.number import Number
-
-    node = Number()
-
-    result = node.process(value=1.25)
-    assert result == (1.25,)
-
-    result_neg = node.process(value=-3.5)
-    assert result_neg == (-3.5,)