Day 6 part 2 solution.

day6/test.py

@@ -1,4 +1,4 @@
-from solver import Simulation
+from solver import Simulation, find_good_obstacles
 
 
 test_data = r"""
@@ -22,6 +22,14 @@ def test_visited():
     assert visited == 41
     print("Visited test passed")
 
+def test_loop_obstacles():
+    print("Beginning loop inducing obstacle placement test")
+    sim = Simulation.from_string(test_data)
+    places = find_good_obstacles(sim)
+    assert len(places) == 6
+    print(f"Loop inducing obstacle placement test complete")
+
 
 if __name__ == '__main__':
     test_visited()
+    test_loop_obstacles()