test suite: fix bug introduced in f5f71ca838

tests/run_all_unitary_tests.m

@@ -15,15 +15,15 @@
 % You should have received a copy of the GNU General Public License
 % along with Dynare.  If not, see <http://www.gnu.org/licenses/>.
 
-if isoctave
-    load_octave_packages
-end
-
 top_test_dir = getenv('TOP_TEST_DIR');
 addpath(top_test_dir);
 addpath([top_test_dir filesep '..' filesep 'matlab']);
 dynare_config([], 0);
 
+if isoctave
+    load_octave_packages
+end
+
 % Test Dynare Version
 if ~strcmp(dynare_version(), getenv('DYNARE_VERSION'))
     error('Incorrect version of Dynare is being tested')