fix segment fault in the test

Author: A-006

source/module_relax/relax_new/test/relax_test.cpp

@@ -49,6 +49,8 @@ class Test_SETGRAD : public testing::Test
             ucell.atoms[0].taud.resize(nat);
             ucell.atoms[0].tau.resize(nat);
             ucell.atoms[0].dis.resize(nat);
+            ucell.atoms[0].mag.resize(nat);
+            ucell.atoms[0].vel.resize(nat);
             ucell.lc = new int[3];
 
             ucell.iat2it[0] = 0;

source/module_relax/relax_old/test/for_test.h

@@ -79,7 +79,9 @@ Atom::Atom()
     na = 2;
     tau.resize(na);
     dis.resize(na);
+    mag.resize(na);
     mbl.resize(na);
+    vel.resize(na);
     taud.resize(na);
 }
 Atom::~Atom()

source/module_relax/relax_old/test/ions_move_cg_test.cpp

@@ -43,12 +43,15 @@ class IonsMoveCGTest : public ::testing::Test
         for (int it = 0; it < ucell.ntype; it++)
         {
             Atom* atom = &ucell.atoms[it];
+            atom->label="test";
             for (int ia = 0; ia < atom->na; ia++)
             {
+                atom->mag[ia]= 1;
                 for (int ik = 0; ik < 3; ++ik)
                 {
                     atom->tau[ia][ik] = 1;
                     atom->mbl[ia][ik] = 1;
+                    atom->vel[ia][ik] = 1;
                 }
             }
         }