Added superstructure test fixture.

This only tests the hood right now.  It needs to be split out into a
fixture and test cases file, and needs support for the other
subsystems.

Change-Id: I23bfbbc4c502939af6d388703771bcc340c4ffea
diff --git a/y2017/control_loops/superstructure/BUILD b/y2017/control_loops/superstructure/BUILD
index de419c8..00f8a2c 100644
--- a/y2017/control_loops/superstructure/BUILD
+++ b/y2017/control_loops/superstructure/BUILD
@@ -29,3 +29,21 @@
     '//y2017:constants',
   ],
 )
+
+cc_test(
+  name = 'superstructure_lib_test',
+  srcs = [
+    'superstructure_lib_test.cc',
+  ],
+  deps = [
+    ':superstructure_queue',
+    ':superstructure_lib',
+    '//aos/testing:googletest',
+    '//aos/common:queues',
+    '//aos/common/controls:control_loop_test',
+    '//aos/common:math',
+    '//aos/common:time',
+    '//frc971/control_loops:position_sensor_sim',
+    '//frc971/control_loops:team_number_test_environment',
+  ],
+)