symmetric_linear_solver_test -> conjugate_gradients_solver_test

Change-Id: Ie3b7b4e0079a74ae3f9e353cfbda91c4b7cdf988

internal/ceres/CMakeLists.txt

@@ -294,6 +294,7 @@ if (BUILD_TESTING AND GFLAGS)
   ceres_test(canonical_views_clustering)
   ceres_test(compressed_row_sparse_matrix)
   ceres_test(conditioned_cost_function)
+  ceres_test(conjugate_gradients_solver)
   ceres_test(corrector)
   ceres_test(cost_function_to_functor)
   ceres_test(covariance)
@@ -354,7 +355,6 @@ if (BUILD_TESTING AND GFLAGS)
                           ${SUITESPARSE_LIBRARIES})
   endif (SUITESPARSE AND SUITESPARSE_FOUND)
 
-  ceres_test(symmetric_linear_solver)
   ceres_test(triplet_sparse_matrix)
   ceres_test(trust_region_minimizer)
   ceres_test(trust_region_preprocessor)

internal/ceres/conjugate_gradients_solver_test.cc

@@ -1,5 +1,5 @@
 // Ceres Solver - A fast non-linear least squares minimizer
-// Copyright 2015 Google Inc. All rights reserved.
+// Copyright 2017 Google Inc. All rights reserved.
 // http://ceres-solver.org/
 //
 // Redistribution and use in source and binary forms, with or without
@@ -28,10 +28,6 @@
 //
 // Author: fredp@google.com (Fred Pighin)
 //
-// Tests for linear solvers that solve symmetric linear systems. Some
-// of this code is inhertited from Fred Pighin's code for testing the
-// old Conjugate Gradients solver.
-//
 // TODO(sameeragarwal): More comprehensive testing with larger and
 // more badly conditioned problem.