Add solution order test (failing)

tests/integration/liso/test_solution_order.py

+"""Solution ordering tests"""
+
+import unittest
+
+from zero.liso import LisoInputParser
+
+
+class LisoSolutionOrderTestCase(unittest.TestCase):
+    """Base test case class for solution order tests"""
+    def setUp(self):
+        self.reset()
+
+    def reset(self):
+        """Reset input parser"""
+        self.parser = LisoInputParser()
+
+    def parse_and_get(self, circuit, *args, **kwargs):
+        """Parse specified circuit and return solution"""
+        self.parser.parse(circuit)
+        return self.parser.solution(*args, **kwargs)
+
+    def parse_and_get_default_function_labels(self, circuit, *args, **kwargs):
+        """Parse specified circuit and return default solution function names"""
+        solution = self.parse_and_get(circuit, *args, **kwargs)
+        labels = []
+        for functions in solution.default_functions.values():
+            labels.extend([function.label() for function in functions])
+        return labels
+
+    def check_default_function_order(self, circuit, pattern, items, *args, **kwargs):
+        """Parse specified circuit and check its default function order matches the specified \
+           pattern substituted with the specified items."""
+        labels = self.parse_and_get_default_function_labels(circuit, *args, **kwargs)
+        with self.subTest():
+            print(labels)
+            self.assertEqual(labels, [pattern % item for item in items])
+
+
+class SolutionOrderTestCase(LisoSolutionOrderTestCase):
+    """Test that default solution functions are ordered in the same way as the input file"""
+    def test_solution_order_all_tfs(self):
+        """Test solution order with all node transfer functions"""
+        circuit = """
+c c1 270n nm2 no
+c c2 7u no3 np1
+c ca 1.5u nm2 ni
+op n1a OP27 np1 gnd no1
+op n2a OP27 gnd nm2 no
+op n3a OP27 gnd nm3 no3
+r ri2 3k nm3 no1
+r ri1 1k no3 nm3
+r r1 40k no1 nm2
+r r2 2k np1 no
+r ra 116k nm2 ni
+r rb 2k np1 ni
+r rq 23k nm2 no
+r load 1k no gnd
+r rin 50 nii ni
+freq log 1 100 100
+uinput nii
+uoutput no all
+"""
+
+        self.check_default_function_order(circuit, "nii to %s (V/V)",
+                                          ["nm2", "no", "no3", "np1", "ni", "no1", "nm3", "nii"])