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  • """
    B-ASIC test suite for the AbstractOperation class.
    """
    
    
    import pytest
    
    
    from b_asic import Addition, Subtraction, Multiplication, ConstantMultiplication, Division, Constant, Butterfly, \
        MAD, SquareRoot
    
    
    class TestOperationOverloading:
        def test_addition_overload(self):
            """Tests addition overloading for both operation and number argument."""
            add1 = Addition(None, None, "add1")
            add2 = Addition(None, None, "add2")
    
            add3 = add1 + add2
            assert isinstance(add3, Addition)
            assert add3.input(0).signals == add1.output(0).signals
            assert add3.input(1).signals == add2.output(0).signals
    
            add4 = add3 + 5
            assert isinstance(add4, Addition)
            assert add4.input(0).signals == add3.output(0).signals
            assert add4.input(1).signals[0].source.operation.value == 5
    
            add5 = 5 + add4
            assert isinstance(add5, Addition)
            assert add5.input(0).signals[0].source.operation.value == 5
            assert add5.input(1).signals == add4.output(0).signals
    
        def test_subtraction_overload(self):
            """Tests subtraction overloading for both operation and number argument."""
            add1 = Addition(None, None, "add1")
            add2 = Addition(None, None, "add2")
    
            sub1 = add1 - add2
            assert isinstance(sub1, Subtraction)
            assert sub1.input(0).signals == add1.output(0).signals
            assert sub1.input(1).signals == add2.output(0).signals
    
            sub2 = sub1 - 5
            assert isinstance(sub2, Subtraction)
            assert sub2.input(0).signals == sub1.output(0).signals
            assert sub2.input(1).signals[0].source.operation.value == 5
    
            sub3 = 5 - sub2
            assert isinstance(sub3, Subtraction)
            assert sub3.input(0).signals[0].source.operation.value == 5
            assert sub3.input(1).signals == sub2.output(0).signals
    
        def test_multiplication_overload(self):
            """Tests multiplication overloading for both operation and number argument."""
            add1 = Addition(None, None, "add1")
            add2 = Addition(None, None, "add2")
    
            mul1 = add1 * add2
            assert isinstance(mul1, Multiplication)
            assert mul1.input(0).signals == add1.output(0).signals
            assert mul1.input(1).signals == add2.output(0).signals
    
            mul2 = mul1 * 5
            assert isinstance(mul2, ConstantMultiplication)
            assert mul2.input(0).signals == mul1.output(0).signals
            assert mul2.value == 5
    
            mul3 = 5 * mul2
            assert isinstance(mul3, ConstantMultiplication)
            assert mul3.input(0).signals == mul2.output(0).signals
            assert mul3.value == 5
    
        def test_division_overload(self):
            """Tests division overloading for both operation and number argument."""
            add1 = Addition(None, None, "add1")
            add2 = Addition(None, None, "add2")
    
            div1 = add1 / add2
            assert isinstance(div1, Division)
            assert div1.input(0).signals == add1.output(0).signals
            assert div1.input(1).signals == add2.output(0).signals
    
            div2 = div1 / 5
            assert isinstance(div2, Division)
            assert div2.input(0).signals == div1.output(0).signals
            assert div2.input(1).signals[0].source.operation.value == 5
    
            div3 = 5 / div2
            assert isinstance(div3, Division)
            assert div3.input(0).signals[0].source.operation.value == 5
            assert div3.input(1).signals == div2.output(0).signals
    
    
    
    class TestTraverse:
        def test_traverse_single_tree(self, operation):
            """Traverse a tree consisting of one operation."""
            constant = Constant(None)
            assert list(constant.traverse()) == [constant]
    
        def test_traverse_tree(self, operation_tree):
            """Traverse a basic addition tree with two constants."""
    
            assert len(list(operation_tree.traverse())) == 5
    
    
        def test_traverse_large_tree(self, large_operation_tree):
            """Traverse a larger tree."""
    
            assert len(list(large_operation_tree.traverse())) == 13
    
    
        def test_traverse_type(self, large_operation_tree):
    
            result = list(large_operation_tree.traverse())
            assert len(list(filter(lambda type_: isinstance(type_, Addition), result))) == 3
            assert len(list(filter(lambda type_: isinstance(type_, Constant), result))) == 4
    
        def test_traverse_loop(self, operation_graph_with_cycle):
            assert len(list(operation_graph_with_cycle.traverse())) == 8
    
    
    class TestToSfg:
        def test_convert_mad_to_sfg(self):
            mad1 = MAD()
            mad1_sfg = mad1.to_sfg()
    
            assert mad1.evaluate(1, 1, 1) == mad1_sfg.evaluate(1, 1, 1)
            assert len(mad1_sfg.operations) == 6
    
        def test_butterfly_to_sfg(self):
            but1 = Butterfly()
            but1_sfg = but1.to_sfg()
    
            assert but1.evaluate(1, 1)[0] == but1_sfg.evaluate(1, 1)[0]
            assert but1.evaluate(1, 1)[1] == but1_sfg.evaluate(1, 1)[1]
            assert len(but1_sfg.operations) == 8
    
        def test_add_to_sfg(self):
            add1 = Addition()
            add1_sfg = add1.to_sfg()
    
            assert len(add1_sfg.operations) == 4
    
        def test_sqrt_to_sfg(self):
            sqrt1 = SquareRoot()
            sqrt1_sfg = sqrt1.to_sfg()
    
            assert len(sqrt1_sfg.operations) == 3
    
    
    class TestLatency:
        def test_latency_constructor(self):
            bfly = Butterfly(latency=5)
    
            assert bfly.latency == 5
            assert bfly.latency_offsets == {'in0': 0, 'in1': 0, 'out0': 5, 'out1': 5}
    
        def test_latency_offsets_constructor(self):
            bfly = Butterfly(latency_offsets={'in0': 2, 'in1': 3, 'out0': 5, 'out1': 10})
    
            assert bfly.latency == 8
            assert bfly.latency_offsets == {'in0': 2, 'in1': 3, 'out0': 5, 'out1': 10}
    
        def test_latency_and_latency_offsets_constructor(self):
            bfly = Butterfly(latency=5, latency_offsets={'in1': 2, 'out0': 9})
    
            assert bfly.latency == 9
            assert bfly.latency_offsets == {"in0": 0, "in1": 2, "out0": 9, "out1": 5}
    
        def test_set_latency(self):
            bfly = Butterfly()
    
            bfly.set_latency(9)
    
            assert bfly.latency == 9
            assert bfly.latency_offsets == {"in0": 0, "in1": 0, "out0": 9, "out1": 9}
    
        def test_set_latency_offsets(self):
            bfly = Butterfly()
    
            bfly.set_latency_offsets({'in0': 3, 'out1': 5})
    
            assert bfly.latency_offsets == {'in0': 3, "in1": None, "out0": None, 'out1': 5}
    
    
    class TestCopyOperation:
        def test_copy_buttefly_latency_offsets(self):
            bfly = Butterfly(latency_offsets={'in0': 4, 'in1': 2, 'out0': 10, 'out1': 9})
    
            bfly_copy = bfly.copy_component()
    
            assert bfly_copy.latency_offsets == {'in0': 4, 'in1': 2, 'out0': 10, 'out1': 9}