From: Michael Orlitzky <michael@orlitzky.com>
Date: Thu, 13 Oct 2016 16:21:56 +0000 (-0400)
Subject: Test the dual game value of a Lyapunov game over the orthant.
X-Git-Tag: 0.1.0~148
X-Git-Url: https://gitweb.michael.orlitzky.com/?a=commitdiff_plain;h=42d689189cc351603607793c4a43914f707873c2;p=dunshire.git

Test the dual game value of a Lyapunov game over the orthant.
---

diff --git a/TODO b/TODO
index 24321b1..9699cd1 100644
--- a/TODO
+++ b/TODO
@@ -21,4 +21,4 @@
 9. We only need to include the API docs for dunshire.games in the
    "user manual;" everything else can go in an appendix.
 
-10. Check value of dual Lyapunov game, and test over the ice creams.
+10. Test Lyapunov games over the ice cream cone.
diff --git a/src/dunshire/games.py b/src/dunshire/games.py
index 279afdb..a039e1f 100644
--- a/src/dunshire/games.py
+++ b/src/dunshire/games.py
@@ -863,3 +863,7 @@ class SymmetricLinearGameTest(TestCase):
             # L should be negative stable
             ns = all([eig < options.ABS_TOL for eig in  eigenvalues_re(L)])
             self.assertTrue(ns)
+
+        # The dual game's value should always equal the primal's.
+        dualsoln = game.dual().solution()
+        self.assert_within_tol(dualsoln.game_value(), soln.game_value())