Use do_run_from_file() for test_memmove3

1 files changed, 4 insertions, 11 deletions

diff --git a/tests/test_core.py b/tests/test_core.py
index c8ae31a1..59a5261c 100644
--- a/tests/test_core.py
+++ b/tests/test_core.py
@@ -2570,17 +2570,10 @@ The current type of b is: 9
     self.do_run_from_file(src, output)
 
   def test_memmove3(self):
-    src = '''
-      #include <stdio.h>
-      #include <string.h>
-      int main() {
-        char str[] = "memmove can be vvery useful....!";
-        memmove(str+15, str+16, 17);
-        puts(str);
-        return 0;
-      }
-    '''
-    self.do_run(src, 'memmove can be very useful....!')
+    test_path = path_from_root('tests', 'core', 'test_memmove3')
+    src, output = (test_path + s for s in ('.in', '.out'))
+
+    self.do_run_from_file(src, output)
 
   def test_flexarray_struct(self):
     src = r'''