Add some tests for DoglegStrategy.

Not necessarily a complete set.

Change-Id: I14eb3a38c6fe976c8212f3934655411b6d1e0aa4
diff --git a/internal/ceres/CMakeLists.txt b/internal/ceres/CMakeLists.txt
index c388316..56f6c69 100644
--- a/internal/ceres/CMakeLists.txt
+++ b/internal/ceres/CMakeLists.txt
@@ -222,6 +222,7 @@
   CERES_TEST(iterative_schur_complement_solver)
   CERES_TEST(jet)
   CERES_TEST(levenberg_marquardt_strategy)
+  CERES_TEST(dogleg_strategy)
   CERES_TEST(local_parameterization)
   CERES_TEST(loss_function)
   CERES_TEST(minimizer)