Update RotationSpline_TEST.cc

Changed one test as it was too brittle

Signed-off-by: Sammit Dhar <sammit.dhar.2004@gmail.com>

Author: sdhar04

src/RotationSpline_TEST.cc

@@ -51,8 +51,8 @@ TEST(RotationSplineTest, RotationSpline)
   s.AutoCalculate(true);
 
   // ::Interpolate
-  EXPECT_TRUE(s.Interpolate(0.5) ==
-      math::Quaterniond(0.999181, 0.0184352, 0.030948, 0.0184352));
+  math::Quaterniond expected(0.999181, 0.0184352, 0.030948, 0.0184352);
+  EXPECT_TRUE(s.Interpolate(0.5).Equal(expected, 1e-6));
 
   // ::Interpolate
   s.AddPoint(math::Quaterniond(.4, .4, .4));