diff --git a/src/test/dump_test_value.f90 b/src/test/dump_test_value.f90
new file mode 100755
index 0000000..8afc5b5
--- /dev/null
+++ b/src/test/dump_test_value.f90
@@ -0,0 +1,31 @@
+subroutine dump_test_value(branch,description,value)
+
+  implicit none
+
+! Input variables
+
+  character(len=1),intent(in)        :: branch
+  character(len=*),intent(in)        :: description
+
+  double precision,intent(in)        :: value
+ 
+! Local variables
+
+! Output variables
+
+  if(branch == 'R') then 
+    open(unit=11,file='test/Rtest.dat')
+  elseif(branch == 'U') then 
+    open(unit=11,file='test/Utest.dat')
+  elseif(branch == 'G') then
+    open(unit=11,file='test/Gtest.dat')
+  else
+    write(*,*) 'Wrong branch name in dump_test_value'
+  end if
+
+  write(11,*) '# ',trim(description)
+  write(11,'(F20.15)') value
+
+  close(unit=11)
+
+end subroutine