diff --git a/test/api/hb-subset-test.h b/test/api/hb-subset-test.h
index 5f5cd8d..6e7888c 100644
--- a/test/api/hb-subset-test.h
+++ b/test/api/hb-subset-test.h
@@ -47,27 +47,6 @@
 
 HB_BEGIN_DECLS
 
-static inline hb_face_t *
-hb_subset_test_open_font (const char *font_path)
-{
-#if GLIB_CHECK_VERSION(2,37,2)
-  char *path = g_test_build_filename (G_TEST_DIST, font_path, NULL);
-#else
-  char *path = g_strdup (font_path);
-#endif
-
-  hb_blob_t *blob = hb_blob_create_from_file (path);
-  if (hb_blob_get_length (blob) == 0)
-    g_error ("Font not found.");
-
-  hb_face_t *face = hb_face_create (blob, 0);
-  hb_blob_destroy (blob);
-
-  g_free (path);
-
-  return face;
-}
-
 static inline hb_subset_input_t *
 hb_subset_test_create_input(const hb_set_t  *codepoints)
 {
diff --git a/test/api/hb-test.h b/test/api/hb-test.h
index 39d091b..5c074c1 100644
--- a/test/api/hb-test.h
+++ b/test/api/hb-test.h
@@ -277,6 +277,27 @@
 } G_STMT_END
 
 
+static inline hb_face_t *
+hb_test_open_font_file (const char *font_path)
+{
+#if GLIB_CHECK_VERSION(2,37,2)
+  char *path = g_test_build_filename (G_TEST_DIST, font_path, NULL);
+#else
+  char *path = g_strdup (font_path);
+#endif
+
+  hb_blob_t *blob = hb_blob_create_from_file (path);
+  if (hb_blob_get_length (blob) == 0)
+    g_error ("Font not found.");
+
+  hb_face_t *face = hb_face_create (blob, 0);
+  hb_blob_destroy (blob);
+
+  g_free (path);
+
+  return face;
+}
+
 HB_END_DECLS
 
 #endif /* HB_TEST_H */
diff --git a/test/api/test-collect-unicodes.c b/test/api/test-collect-unicodes.c
index f7a7813..50965a9 100644
--- a/test/api/test-collect-unicodes.c
+++ b/test/api/test-collect-unicodes.c
@@ -30,7 +30,7 @@
 static void
 test_collect_unicodes_format4 (void)
 {
-  hb_face_t *face = hb_subset_test_open_font("fonts/Roboto-Regular.abc.format4.ttf");
+  hb_face_t *face = hb_test_open_font_file ("fonts/Roboto-Regular.abc.format4.ttf");
   hb_set_t *codepoints = hb_set_create();
   hb_codepoint_t cp;
 
@@ -52,7 +52,7 @@
 static void
 test_collect_unicodes_format12 (void)
 {
-  hb_face_t *face = hb_subset_test_open_font("fonts/Roboto-Regular.abc.format12.ttf");
+  hb_face_t *face = hb_test_open_font_file ("fonts/Roboto-Regular.abc.format12.ttf");
   hb_set_t *codepoints = hb_set_create();
   hb_codepoint_t cp;
 
@@ -74,7 +74,7 @@
 static void
 test_collect_unicodes (void)
 {
-  hb_face_t *face = hb_subset_test_open_font("fonts/Roboto-Regular.abc.ttf");
+  hb_face_t *face = hb_test_open_font_file ("fonts/Roboto-Regular.abc.ttf");
   hb_set_t *codepoints = hb_set_create();
   hb_codepoint_t cp;
 
diff --git a/test/api/test-multithread.c b/test/api/test-multithread.c
index 7b62a02..f946049 100644
--- a/test/api/test-multithread.c
+++ b/test/api/test-multithread.c
@@ -23,16 +23,13 @@
  *
  */
 
-#include <stdlib.h>
-#include <string.h>
-#include <stdio.h>
-
 #include <pthread.h>
 
 #include <hb.h>
 #include <hb-ft.h>
 #include <hb-ot.h>
-#include <glib.h>
+
+#include "hb-test.h"
 
 static const char *font_path = "fonts/Inconsolata-Regular.abc.ttf";
 static const char *text = "abc";
@@ -127,15 +124,9 @@
 int
 main (int argc, char **argv)
 {
-  g_test_init (&argc, &argv, NULL);
+  hb_test_init (&argc, &argv);
 
-#if GLIB_CHECK_VERSION(2,37,2)
-  gchar *default_path = g_test_build_filename (G_TEST_DIST, font_path, NULL);
-#else
-  gchar *default_path = g_strdup (font_path);
-#endif
-
-  char *path = argc > 1 && *argv[1] ? argv[1] : (char *) default_path;
+  char *path = argc > 1 && *argv[1] ? argv[1] : (char *) font_path;
   if (argc > 2)
     num_threads = atoi (argv[2]);
   if (argc > 3)
@@ -147,11 +138,7 @@
    * https://github.com/harfbuzz/harfbuzz/issues/1191 */
   hb_language_get_default ();
 
-  hb_blob_t *blob = hb_blob_create_from_file (path);
-  if (hb_blob_get_length (blob) == 0)
-    g_error ("Font not found.");
-
-  hb_face_t *face = hb_face_create (blob, 0);
+  hb_face_t *face = hb_test_open_font_file (path);
   font = hb_font_create (face);
 
   /* Fill the reference */
@@ -170,9 +157,6 @@
 
   hb_font_destroy (font);
   hb_face_destroy (face);
-  hb_blob_destroy (blob);
-
-  g_free (default_path);
 
   return 0;
 }
diff --git a/test/api/test-ot-name.c b/test/api/test-ot-name.c
index 2da504a..d733397 100644
--- a/test/api/test-ot-name.c
+++ b/test/api/test-ot-name.c
@@ -27,12 +27,10 @@
 
 #include <hb-ot.h>
 
-static const char *font_path = "fonts/cv01.otf";
-static hb_face_t *face;
-
 static void
 test_ot_layout_feature_get_name_ids_and_characters (void)
 {
+  hb_face_t *face = hb_test_open_font_file ("fonts/cv01.otf");
   hb_tag_t cv01 = HB_TAG ('c','v','0','1');
   unsigned int feature_index;
   if (!hb_ot_layout_language_find_feature (face,
@@ -70,6 +68,8 @@
   g_assert_cmpint (char_count, ==, 2);
   g_assert_cmpint (characters[0], ==, 10);
   g_assert_cmpint (characters[1], ==, 24030);
+
+  hb_face_destroy (face);
 }
 
 int
@@ -77,26 +77,7 @@
 {
   g_test_init (&argc, &argv, NULL);
 
-#if GLIB_CHECK_VERSION(2,37,2)
-  gchar *default_path = g_test_build_filename (G_TEST_DIST, font_path, NULL);
-#else
-  gchar *default_path = g_strdup (font_path);
-#endif
-
-  hb_blob_t *blob;
-
-  char *path = argc > 1 && *argv[1] ? argv[1] : (char *) default_path;
-  blob = hb_blob_create_from_file (path);
-  if (hb_blob_get_length (blob) == 0)
-    g_error ("Font not found.");
-
-  face = hb_face_create (blob, 0);
-
   hb_test_add (test_ot_layout_feature_get_name_ids_and_characters);
 
-  unsigned int result = hb_test_run ();
-  hb_face_destroy (face);
-  hb_blob_destroy (blob);
-  g_free (default_path);
-  return result;
+  return hb_test_run ();
 }
diff --git a/test/api/test-subset-cmap.c b/test/api/test-subset-cmap.c
index 84d34bc..74e91ca 100644
--- a/test/api/test-subset-cmap.c
+++ b/test/api/test-subset-cmap.c
@@ -32,8 +32,8 @@
 static void
 test_subset_cmap (void)
 {
-  hb_face_t *face_abc = hb_subset_test_open_font ("fonts/Roboto-Regular.abc.ttf");
-  hb_face_t *face_ac = hb_subset_test_open_font ("fonts/Roboto-Regular.ac.ttf");
+  hb_face_t *face_abc = hb_test_open_font_file ("fonts/Roboto-Regular.abc.ttf");
+  hb_face_t *face_ac = hb_test_open_font_file ("fonts/Roboto-Regular.ac.ttf");
 
   hb_set_t *codepoints = hb_set_create ();
   hb_face_t *face_abc_subset;
@@ -52,7 +52,7 @@
 static void
 test_subset_cmap_non_consecutive_glyphs (void)
 {
-  hb_face_t *face = hb_subset_test_open_font ("fonts/Roboto-Regular.D7,D8,D9,DA,DE.ttf");
+  hb_face_t *face = hb_test_open_font_file ("fonts/Roboto-Regular.D7,D8,D9,DA,DE.ttf");
 
   hb_set_t *codepoints = hb_set_create ();
   hb_face_t *face_subset;
@@ -74,7 +74,7 @@
 static void
 test_subset_cmap_noop (void)
 {
-  hb_face_t *face_abc = hb_subset_test_open_font("fonts/Roboto-Regular.abc.ttf");
+  hb_face_t *face_abc = hb_test_open_font_file ("fonts/Roboto-Regular.abc.ttf");
 
   hb_set_t *codepoints = hb_set_create();
   hb_face_t *face_abc_subset;
diff --git a/test/api/test-subset-glyf.c b/test/api/test-subset-glyf.c
index 05c7f8c..0e5c293 100644
--- a/test/api/test-subset-glyf.c
+++ b/test/api/test-subset-glyf.c
@@ -60,8 +60,8 @@
 static void
 test_subset_glyf (void)
 {
-  hb_face_t *face_abc = hb_subset_test_open_font ("fonts/Roboto-Regular.abc.ttf");
-  hb_face_t *face_ac = hb_subset_test_open_font ("fonts/Roboto-Regular.ac.ttf");
+  hb_face_t *face_abc = hb_test_open_font_file ("fonts/Roboto-Regular.abc.ttf");
+  hb_face_t *face_ac = hb_test_open_font_file ("fonts/Roboto-Regular.ac.ttf");
 
   hb_set_t *codepoints = hb_set_create();
   hb_face_t *face_abc_subset;
@@ -82,8 +82,8 @@
 static void
 test_subset_glyf_with_components (void)
 {
-  hb_face_t *face_components = hb_subset_test_open_font ("fonts/Roboto-Regular.components.ttf");
-  hb_face_t *face_subset = hb_subset_test_open_font ("fonts/Roboto-Regular.components.subset.ttf");
+  hb_face_t *face_components = hb_test_open_font_file ("fonts/Roboto-Regular.components.ttf");
+  hb_face_t *face_subset = hb_test_open_font_file ("fonts/Roboto-Regular.components.subset.ttf");
 
   hb_set_t *codepoints = hb_set_create();
   hb_face_t *face_generated_subset;
@@ -103,8 +103,8 @@
 static void
 test_subset_glyf_with_gsub (void)
 {
-  hb_face_t *face_fil = hb_subset_test_open_font ("fonts/Roboto-Regular.gsub.fil.ttf");
-  hb_face_t *face_fi = hb_subset_test_open_font ("fonts/Roboto-Regular.gsub.fi.ttf");
+  hb_face_t *face_fil = hb_test_open_font_file ("fonts/Roboto-Regular.gsub.fil.ttf");
+  hb_face_t *face_fi = hb_test_open_font_file ("fonts/Roboto-Regular.gsub.fi.ttf");
   hb_subset_input_t *input;
   hb_face_t *face_subset;
 
@@ -130,8 +130,8 @@
 static void
 test_subset_glyf_without_gsub (void)
 {
-  hb_face_t *face_fil = hb_subset_test_open_font ("fonts/Roboto-Regular.gsub.fil.ttf");
-  hb_face_t *face_fi = hb_subset_test_open_font ("fonts/Roboto-Regular.nogsub.fi.ttf");
+  hb_face_t *face_fil = hb_test_open_font_file ("fonts/Roboto-Regular.gsub.fil.ttf");
+  hb_face_t *face_fi = hb_test_open_font_file ("fonts/Roboto-Regular.nogsub.fi.ttf");
   hb_subset_input_t *input;
   hb_face_t *face_subset;
 
@@ -157,7 +157,7 @@
 static void
 test_subset_glyf_noop (void)
 {
-  hb_face_t *face_abc = hb_subset_test_open_font("fonts/Roboto-Regular.abc.ttf");
+  hb_face_t *face_abc = hb_test_open_font_file ("fonts/Roboto-Regular.abc.ttf");
 
   hb_set_t *codepoints = hb_set_create();
   hb_face_t *face_abc_subset;
@@ -178,8 +178,8 @@
 static void
 test_subset_glyf_strip_hints_simple (void)
 {
-  hb_face_t *face_abc = hb_subset_test_open_font ("fonts/Roboto-Regular.abc.ttf");
-  hb_face_t *face_ac = hb_subset_test_open_font ("fonts/Roboto-Regular.ac.nohints.ttf");
+  hb_face_t *face_abc = hb_test_open_font_file ("fonts/Roboto-Regular.abc.ttf");
+  hb_face_t *face_ac = hb_test_open_font_file ("fonts/Roboto-Regular.ac.nohints.ttf");
 
   hb_set_t *codepoints = hb_set_create();
   hb_subset_input_t *input;
@@ -203,8 +203,8 @@
 static void
 test_subset_glyf_strip_hints_composite (void)
 {
-  hb_face_t *face_components = hb_subset_test_open_font ("fonts/Roboto-Regular.components.ttf");
-  hb_face_t *face_subset = hb_subset_test_open_font ("fonts/Roboto-Regular.components.1fc.nohints.ttf");
+  hb_face_t *face_components = hb_test_open_font_file ("fonts/Roboto-Regular.components.ttf");
+  hb_face_t *face_subset = hb_test_open_font_file ("fonts/Roboto-Regular.components.1fc.nohints.ttf");
 
   hb_set_t *codepoints = hb_set_create();
   hb_subset_input_t *input;
@@ -228,7 +228,7 @@
 static void
 test_subset_glyf_strip_hints_invalid (void)
 {
-  hb_face_t *face = hb_subset_test_open_font ("../fuzzing/fonts/oom-ccc61c92d589f895174cdef6ff2e3b20e9999a1a");
+  hb_face_t *face = hb_test_open_font_file ("../fuzzing/fonts/oom-ccc61c92d589f895174cdef6ff2e3b20e9999a1a");
 
   hb_set_t *codepoints = hb_set_create();
   const hb_codepoint_t text[] =
diff --git a/test/api/test-subset-hdmx.c b/test/api/test-subset-hdmx.c
index 8496f9e..44e579a 100644
--- a/test/api/test-subset-hdmx.c
+++ b/test/api/test-subset-hdmx.c
@@ -33,8 +33,8 @@
 static void
 test_subset_hdmx_simple_subset (void)
 {
-  hb_face_t *face_abc = hb_subset_test_open_font ("fonts/Roboto-Regular.abc.ttf");
-  hb_face_t *face_ac = hb_subset_test_open_font ("fonts/Roboto-Regular.ac.ttf");
+  hb_face_t *face_abc = hb_test_open_font_file ("fonts/Roboto-Regular.abc.ttf");
+  hb_face_t *face_ac = hb_test_open_font_file ("fonts/Roboto-Regular.ac.ttf");
 
   hb_set_t *codepoints = hb_set_create ();
   hb_face_t *face_abc_subset;
@@ -53,8 +53,8 @@
 static void
 test_subset_hdmx_multiple_device_records (void)
 {
-  hb_face_t *face_abc = hb_subset_test_open_font ("fonts/Roboto-Regular.multihdmx.abc.ttf");
-  hb_face_t *face_a = hb_subset_test_open_font ("fonts/Roboto-Regular.multihdmx.a.ttf");
+  hb_face_t *face_abc = hb_test_open_font_file ("fonts/Roboto-Regular.multihdmx.abc.ttf");
+  hb_face_t *face_a = hb_test_open_font_file ("fonts/Roboto-Regular.multihdmx.a.ttf");
 
   hb_set_t *codepoints = hb_set_create ();
   hb_face_t *face_abc_subset;
@@ -72,7 +72,7 @@
 static void
 test_subset_hdmx_invalid (void)
 {
-  hb_face_t *face = hb_subset_test_open_font("../fuzzing/fonts/crash-ccc61c92d589f895174cdef6ff2e3b20e9999a1a");
+  hb_face_t *face = hb_test_open_font_file ("../fuzzing/fonts/crash-ccc61c92d589f895174cdef6ff2e3b20e9999a1a");
 
   hb_subset_input_t *input = hb_subset_input_create_or_fail ();
   hb_set_t *codepoints = hb_subset_input_unicode_set (input);
@@ -94,7 +94,7 @@
 static void
 test_subset_hdmx_fails_sanitize (void)
 {
-  hb_face_t *face = hb_subset_test_open_font("../fuzzing/fonts/clusterfuzz-testcase-minimized-hb-subset-fuzzer-5609911946838016");
+  hb_face_t *face = hb_test_open_font_file ("../fuzzing/fonts/clusterfuzz-testcase-minimized-hb-subset-fuzzer-5609911946838016");
 
   hb_subset_input_t *input = hb_subset_input_create_or_fail ();
   hb_set_t *codepoints = hb_subset_input_unicode_set (input);
@@ -116,7 +116,7 @@
 static void
 test_subset_hdmx_noop (void)
 {
-  hb_face_t *face_abc = hb_subset_test_open_font("fonts/Roboto-Regular.abc.ttf");
+  hb_face_t *face_abc = hb_test_open_font_file ("fonts/Roboto-Regular.abc.ttf");
 
   hb_set_t *codepoints = hb_set_create();
   hb_face_t *face_abc_subset;
diff --git a/test/api/test-subset-hmtx.c b/test/api/test-subset-hmtx.c
index 1a5a44d..1b51dc2 100644
--- a/test/api/test-subset-hmtx.c
+++ b/test/api/test-subset-hmtx.c
@@ -47,8 +47,8 @@
 static void
 test_subset_hmtx_simple_subset (void)
 {
-  hb_face_t *face_abc = hb_subset_test_open_font ("fonts/Roboto-Regular.abc.ttf");
-  hb_face_t *face_ac = hb_subset_test_open_font ("fonts/Roboto-Regular.ac.ttf");
+  hb_face_t *face_abc = hb_test_open_font_file ("fonts/Roboto-Regular.abc.ttf");
+  hb_face_t *face_ac = hb_test_open_font_file ("fonts/Roboto-Regular.ac.ttf");
 
   hb_set_t *codepoints = hb_set_create ();
   hb_face_t *face_abc_subset;
@@ -69,8 +69,8 @@
 static void
 test_subset_hmtx_monospace (void)
 {
-  hb_face_t *face_abc = hb_subset_test_open_font ("fonts/Inconsolata-Regular.abc.ttf");
-  hb_face_t *face_ac = hb_subset_test_open_font ("fonts/Inconsolata-Regular.ac.ttf");
+  hb_face_t *face_abc = hb_test_open_font_file ("fonts/Inconsolata-Regular.abc.ttf");
+  hb_face_t *face_ac = hb_test_open_font_file ("fonts/Inconsolata-Regular.ac.ttf");
 
   hb_set_t *codepoints = hb_set_create ();
   hb_face_t *face_abc_subset;
@@ -91,8 +91,8 @@
 static void
 test_subset_hmtx_keep_num_metrics (void)
 {
-  hb_face_t *face_abc = hb_subset_test_open_font ("fonts/Inconsolata-Regular.abc.widerc.ttf");
-  hb_face_t *face_ac = hb_subset_test_open_font ("fonts/Inconsolata-Regular.ac.widerc.ttf");
+  hb_face_t *face_abc = hb_test_open_font_file ("fonts/Inconsolata-Regular.abc.widerc.ttf");
+  hb_face_t *face_ac = hb_test_open_font_file ("fonts/Inconsolata-Regular.ac.widerc.ttf");
 
   hb_set_t *codepoints = hb_set_create ();
   hb_face_t *face_abc_subset;
@@ -112,8 +112,8 @@
 static void
 test_subset_hmtx_decrease_num_metrics (void)
 {
-  hb_face_t *face_abc = hb_subset_test_open_font ("fonts/Inconsolata-Regular.abc.widerc.ttf");
-  hb_face_t *face_ab = hb_subset_test_open_font ("fonts/Inconsolata-Regular.ab.ttf");
+  hb_face_t *face_abc = hb_test_open_font_file ("fonts/Inconsolata-Regular.abc.widerc.ttf");
+  hb_face_t *face_ab = hb_test_open_font_file ("fonts/Inconsolata-Regular.ab.ttf");
 
   hb_set_t *codepoints = hb_set_create ();
   hb_face_t *face_abc_subset;
@@ -133,7 +133,7 @@
 static void
 test_subset_hmtx_noop (void)
 {
-  hb_face_t *face_abc = hb_subset_test_open_font("fonts/Roboto-Regular.abc.ttf");
+  hb_face_t *face_abc = hb_test_open_font_file ("fonts/Roboto-Regular.abc.ttf");
 
   hb_set_t *codepoints = hb_set_create();
   hb_face_t *face_abc_subset;
@@ -153,7 +153,7 @@
 static void
 test_subset_invalid_hmtx (void)
 {
-  hb_face_t *face = hb_subset_test_open_font("../fuzzing/fonts/crash-e4e0bb1458a91b692eba492c907ae1f94e635480");
+  hb_face_t *face = hb_test_open_font_file ("../fuzzing/fonts/crash-e4e0bb1458a91b692eba492c907ae1f94e635480");
   hb_face_t *subset;
 
   hb_subset_input_t *input = hb_subset_input_create_or_fail ();
diff --git a/test/api/test-subset-os2.c b/test/api/test-subset-os2.c
index de63a3f..dfc9461 100644
--- a/test/api/test-subset-os2.c
+++ b/test/api/test-subset-os2.c
@@ -31,8 +31,8 @@
 static void
 test_subset_os2 (void)
 {
-  hb_face_t *face_abc = hb_subset_test_open_font("fonts/Roboto-Regular.abc.ttf");
-  hb_face_t *face_b = hb_subset_test_open_font("fonts/Roboto-Regular.b.ttf");
+  hb_face_t *face_abc = hb_test_open_font_file ("fonts/Roboto-Regular.abc.ttf");
+  hb_face_t *face_b = hb_test_open_font_file ("fonts/Roboto-Regular.b.ttf");
 
   hb_set_t *codepoints = hb_set_create();
   hb_face_t *face_abc_subset;
diff --git a/test/api/test-subset-post.c b/test/api/test-subset-post.c
index c14741e..e31b01e 100644
--- a/test/api/test-subset-post.c
+++ b/test/api/test-subset-post.c
@@ -32,8 +32,8 @@
 static void
 test_post_drops_glyph_names (void)
 {
-  hb_face_t *face_full = hb_subset_test_open_font ("fonts/Mplus1p-Regular.660E,6975,73E0,5EA6,8F38,6E05.ttf");
-  hb_face_t *face_subset = hb_subset_test_open_font ("fonts/Mplus1p-Regular.660E.ttf");
+  hb_face_t *face_full = hb_test_open_font_file ("fonts/Mplus1p-Regular.660E,6975,73E0,5EA6,8F38,6E05.ttf");
+  hb_face_t *face_subset = hb_test_open_font_file ("fonts/Mplus1p-Regular.660E.ttf");
   hb_face_t *face_full_subset;
 
   hb_set_t *codepoints = hb_set_create ();
diff --git a/test/api/test-subset-vmtx.c b/test/api/test-subset-vmtx.c
index 40ea8f8..24a4a76 100644
--- a/test/api/test-subset-vmtx.c
+++ b/test/api/test-subset-vmtx.c
@@ -46,8 +46,8 @@
 static void
 test_subset_vmtx_simple_subset (void)
 {
-  hb_face_t *face_full = hb_subset_test_open_font ("fonts/Mplus1p-Regular.660E,6975,73E0,5EA6,8F38,6E05.ttf");
-  hb_face_t *face_subset = hb_subset_test_open_font ("fonts/Mplus1p-Regular.660E.ttf");
+  hb_face_t *face_full = hb_test_open_font_file ("fonts/Mplus1p-Regular.660E,6975,73E0,5EA6,8F38,6E05.ttf");
+  hb_face_t *face_subset = hb_test_open_font_file ("fonts/Mplus1p-Regular.660E.ttf");
   hb_face_t *face_full_subset;
 
   hb_set_t *codepoints = hb_set_create ();
@@ -67,7 +67,7 @@
 static void
 test_subset_vmtx_noop (void)
 {
-  hb_face_t *face_full = hb_subset_test_open_font ("fonts/Mplus1p-Regular.660E,6975,73E0,5EA6,8F38,6E05.ttf");
+  hb_face_t *face_full = hb_test_open_font_file ("fonts/Mplus1p-Regular.660E,6975,73E0,5EA6,8F38,6E05.ttf");
   hb_face_t *face_full_subset;
 
   hb_set_t *codepoints = hb_set_create();
diff --git a/test/api/test-subset.c b/test/api/test-subset.c
index aaed031..85e4fdf 100644
--- a/test/api/test-subset.c
+++ b/test/api/test-subset.c
@@ -32,7 +32,7 @@
 static void
 test_subset_32_tables (void)
 {
-  hb_face_t *face = hb_subset_test_open_font("../fuzzing/fonts/oom-6ef8c96d3710262511bcc730dce9c00e722cb653");
+  hb_face_t *face = hb_test_open_font_file ("../fuzzing/fonts/oom-6ef8c96d3710262511bcc730dce9c00e722cb653");
 
   hb_subset_input_t *input = hb_subset_input_create_or_fail ();
   hb_set_t *codepoints = hb_subset_input_unicode_set (input);
@@ -54,7 +54,7 @@
 static void
 test_subset_no_inf_loop (void)
 {
-  hb_face_t *face = hb_subset_test_open_font("../fuzzing/fonts/clusterfuzz-testcase-minimized-hb-subset-fuzzer-5521982557782016");
+  hb_face_t *face = hb_test_open_font_file ("../fuzzing/fonts/clusterfuzz-testcase-minimized-hb-subset-fuzzer-5521982557782016");
 
   hb_subset_input_t *input = hb_subset_input_create_or_fail ();
   hb_set_t *codepoints = hb_subset_input_unicode_set (input);
@@ -76,7 +76,7 @@
 static void
 test_subset_crash (void)
 {
-  hb_face_t *face = hb_subset_test_open_font("../fuzzing/fonts/crash-4b60576767ee4d9fe1cc10959d89baf73d4e8249");
+  hb_face_t *face = hb_test_open_font_file ("../fuzzing/fonts/crash-4b60576767ee4d9fe1cc10959d89baf73d4e8249");
 
   hb_subset_input_t *input = hb_subset_input_create_or_fail ();
   hb_set_t *codepoints = hb_subset_input_unicode_set (input);