diff --git a/tests/core/test_mmap.in b/tests/core/test_mmap.in
new file mode 100644
index 000000000..464002781
--- /dev/null
+++ b/tests/core/test_mmap.in
@@ -0,0 +1,38 @@
+
+      #include <stdio.h>
+      #include <sys/mman.h>
+      #include <assert.h>
+
+      int main(int argc, char *argv[]) {
+          for (int i = 0; i < 10; i++) {
+            int* map = (int*)mmap(0, 5000, PROT_READ | PROT_WRITE,
+                    MAP_SHARED | MAP_ANON, -1, 0);
+            /* TODO: Should we align to 4k?
+            assert(((int)map) % 4096 == 0); // aligned
+            */
+            assert(munmap(map, 5000) == 0);
+          }
+
+          const int NUM_BYTES = 8 * 1024 * 1024;
+          const int NUM_INTS = NUM_BYTES / sizeof(int);
+
+          int* map = (int*)mmap(0, NUM_BYTES, PROT_READ | PROT_WRITE,
+                  MAP_SHARED | MAP_ANON, -1, 0);
+          assert(map != MAP_FAILED);
+
+          int i;
+
+          for (i = 0; i < NUM_INTS; i++) {
+              map[i] = i;
+          }
+
+          for (i = 0; i < NUM_INTS; i++) {
+              assert(map[i] == i);
+          }
+
+          assert(munmap(map, NUM_BYTES) == 0);
+
+          printf("hello,world");
+          return 0;
+      }
+    
\ No newline at end of file
diff --git a/tests/core/test_mmap.out b/tests/core/test_mmap.out
new file mode 100644
index 000000000..f2fff68f3
--- /dev/null
+++ b/tests/core/test_mmap.out
@@ -0,0 +1 @@
+hello,world
\ No newline at end of file
diff --git a/tests/test_core.py b/tests/test_core.py
index 011546056..242494b68 100644
--- a/tests/test_core.py
+++ b/tests/test_core.py
@@ -4486,46 +4486,11 @@ return malloc(size);
 
     Settings.TOTAL_MEMORY = 128*1024*1024
 
-    src = '''
-      #include <stdio.h>
-      #include <sys/mman.h>
-      #include <assert.h>
+    test_path = path_from_root('tests', 'core', 'test_mmap')
+    src, output = (test_path + s for s in ('.in', '.out'))
 
-      int main(int argc, char *argv[]) {
-          for (int i = 0; i < 10; i++) {
-            int* map = (int*)mmap(0, 5000, PROT_READ | PROT_WRITE,
-                    MAP_SHARED | MAP_ANON, -1, 0);
-            /* TODO: Should we align to 4k?
-            assert(((int)map) % 4096 == 0); // aligned
-            */
-            assert(munmap(map, 5000) == 0);
-          }
-
-          const int NUM_BYTES = 8 * 1024 * 1024;
-          const int NUM_INTS = NUM_BYTES / sizeof(int);
-
-          int* map = (int*)mmap(0, NUM_BYTES, PROT_READ | PROT_WRITE,
-                  MAP_SHARED | MAP_ANON, -1, 0);
-          assert(map != MAP_FAILED);
-
-          int i;
-
-          for (i = 0; i < NUM_INTS; i++) {
-              map[i] = i;
-          }
-
-          for (i = 0; i < NUM_INTS; i++) {
-              assert(map[i] == i);
-          }
-
-          assert(munmap(map, NUM_BYTES) == 0);
-
-          printf("hello,world");
-          return 0;
-      }
-    '''
-    self.do_run(src, 'hello,world')
-    self.do_run(src, 'hello,world', force_c=True)
+    self.do_run_from_file(src, output)
+    self.do_run_from_file(src, output, force_c=True)
 
   def test_mmap_file(self):
     if self.emcc_args is None: return self.skip('requires emcc')