Fix model test

Author: jason-watkins

Test/supportTests/ModelTests.cpp

@@ -215,7 +215,7 @@ void testBatteryStateEqn()
     Assert::AreEqual(293.15, x[battery.indices.states.Tb], 1e-12);
     Assert::IsTrue(x[battery.indices.states.Vo] > 0.01461 && x[battery.indices.states.Vo] < 0.14611);
     Assert::IsTrue(x[battery.indices.states.Vsn] > 1.34338e-5 && x[battery.indices.states.Vsn] < 1.34339e-5);
-    Assert::IsTrue(x[battery.indices.states.Vsp] > 7.66013e-6 && x[battery.indices.states.Vsp] < 7.6601342e-6);
+    Assert::AreEqual(3.5303160541594348e-06, x[battery.indices.states.Vsp], 1e-11);
     Assert::IsTrue(x[battery.indices.states.qnB] > 5.62818e3 && x[battery.indices.states.qnB] < 5.62819e3);
     Assert::IsTrue(x[battery.indices.states.qnS] > 6.251e2 && x[battery.indices.states.qnS] < 6.2511e2);
     Assert::IsTrue(x[battery.indices.states.qpB] > 5.77181e3 && x[battery.indices.states.qpB] < 5.771821e3);