static void
test_subset_cff1_noop (void)
{
  hb_face_t *face_abc = hb_test_open_font_file("fonts/SourceSansPro-Regular.abc.otf");

  hb_set_t *codepoints = hb_set_create ();
  hb_face_t *face_abc_subset;
  hb_set_add (codepoints, 'a');
  hb_set_add (codepoints, 'b');
  hb_set_add (codepoints, 'c');
  face_abc_subset = hb_subset_test_create_subset (face_abc, hb_subset_test_create_input (codepoints));
  hb_set_destroy (codepoints);

  hb_subset_test_check (face_abc, face_abc_subset, HB_TAG ('C','F','F',' '));

  hb_face_destroy (face_abc_subset);
  hb_face_destroy (face_abc);
}
static void
test_subset_hdmx_noop (void)
{
  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;
  hb_set_add (codepoints, 'a');
  hb_set_add (codepoints, 'b');
  hb_set_add (codepoints, 'c');
  face_abc_subset = hb_subset_test_create_subset (face_abc, hb_subset_test_create_input (codepoints));
  hb_set_destroy (codepoints);

  hb_subset_test_check (face_abc, face_abc_subset, HB_TAG ('h','d','m','x'));

  hb_face_destroy (face_abc_subset);
  hb_face_destroy (face_abc);
}
static void
test_subset_cff1_j (void)
{
  hb_face_t *face_41_3041_4c2e = hb_test_open_font_file ("fonts/SourceHanSans-Regular.41,3041,4C2E.otf");
  hb_face_t *face_41_4c2e = hb_test_open_font_file ("fonts/SourceHanSans-Regular.41,4C2E.otf");

  hb_set_t *codepoints = hb_set_create ();
  hb_face_t *face_41_3041_4c2e_subset;
  hb_set_add (codepoints, 0x41);
  hb_set_add (codepoints, 0x4C2E);
  face_41_3041_4c2e_subset = hb_subset_test_create_subset (face_41_3041_4c2e, hb_subset_test_create_input (codepoints));
  hb_set_destroy (codepoints);

  hb_subset_test_check (face_41_4c2e, face_41_3041_4c2e_subset, HB_TAG ('C','F','F',' '));

  hb_face_destroy (face_41_3041_4c2e_subset);
  hb_face_destroy (face_41_3041_4c2e);
  hb_face_destroy (face_41_4c2e);
}
static void
test_subset_cff1_expert (void)
{
  hb_face_t *face = hb_test_open_font_file ("fonts/cff1_expert.otf");
  hb_face_t *face_subset = hb_test_open_font_file ("fonts/cff1_expert.2D,F6E9,FB00.otf");

  hb_set_t *codepoints = hb_set_create ();
  hb_face_t *face_test;
  hb_set_add (codepoints, 0x2D);
  hb_set_add (codepoints, 0xF6E9);
  hb_set_add (codepoints, 0xFB00);
  face_test = hb_subset_test_create_subset (face, hb_subset_test_create_input (codepoints));
  hb_set_destroy (codepoints);

  hb_subset_test_check (face_subset, face_test, HB_TAG ('C','F','F',' '));

  hb_face_destroy (face_test);
  hb_face_destroy (face_subset);
  hb_face_destroy (face);
}
static void
test_subset_hdmx_fails_sanitize (void)
{
  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);
  hb_face_t *subset;

  hb_set_add (codepoints, 'a');
  hb_set_add (codepoints, 'b');
  hb_set_add (codepoints, 'c');

  subset = hb_subset (face, input);
  g_assert (subset);
  g_assert (subset == hb_face_get_empty ());

  hb_subset_input_destroy (input);
  hb_face_destroy (subset);
  hb_face_destroy (face);
}
static void
test_subset_hdmx_invalid (void)
{
  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);
  hb_face_t *subset;

  hb_set_add (codepoints, 'a');
  hb_set_add (codepoints, 'b');
  hb_set_add (codepoints, 'c');

  subset = hb_subset (face, input);
  g_assert (subset);
  g_assert (subset == hb_face_get_empty ());

  hb_subset_input_destroy (input);
  hb_face_destroy (subset);
  hb_face_destroy (face);
}
static void
test_subset_cff1_desubr (void)
{
  hb_face_t *face_abc = hb_test_open_font_file ("fonts/SourceSansPro-Regular.abc.otf");
  hb_face_t *face_ac = hb_test_open_font_file ("fonts/SourceSansPro-Regular.ac.nosubrs.otf");

  hb_set_t *codepoints = hb_set_create ();
  hb_subset_input_t *input;
  hb_face_t *face_abc_subset;
  hb_set_add (codepoints, 'a');
  hb_set_add (codepoints, 'c');
  input = hb_subset_test_create_input (codepoints);
  hb_subset_input_set_desubroutinize (input, true);
  face_abc_subset = hb_subset_test_create_subset (face_abc, input);
  hb_set_destroy (codepoints);

  hb_subset_test_check (face_ac, face_abc_subset, HB_TAG ('C','F','F',' '));

  hb_face_destroy (face_abc_subset);
  hb_face_destroy (face_abc);
  hb_face_destroy (face_ac);
}
static void
test_subset_cff1_j_desubr_strip_hints (void)
{
  hb_face_t *face_41_3041_4c2e = hb_test_open_font_file ("fonts/SourceHanSans-Regular.41,3041,4C2E.otf");
  hb_face_t *face_41_4c2e = hb_test_open_font_file ("fonts/SourceHanSans-Regular.41,4C2E.nosubrs.nohints.otf");

  hb_set_t *codepoints = hb_set_create ();
  hb_face_t *face_41_3041_4c2e_subset;
  hb_subset_input_t *input;
  hb_set_add (codepoints, 0x41);
  hb_set_add (codepoints, 0x4C2E);
  input = hb_subset_test_create_input (codepoints);
  hb_subset_input_set_drop_hints (input, true);
  hb_subset_input_set_desubroutinize (input, true);
  face_41_3041_4c2e_subset = hb_subset_test_create_subset (face_41_3041_4c2e, input);
  hb_set_destroy (codepoints);

  hb_subset_test_check (face_41_4c2e, face_41_3041_4c2e_subset, HB_TAG ('C','F','F',' '));

  hb_face_destroy (face_41_3041_4c2e_subset);
  hb_face_destroy (face_41_3041_4c2e);
  hb_face_destroy (face_41_4c2e);
}
static void
test_subset_cff1_seac (void)
{
  hb_face_t *face = hb_test_open_font_file ("fonts/cff1_seac.otf");
  hb_face_t *face_subset = hb_test_open_font_file ("fonts/cff1_seac.C0.otf");
  hb_face_t *face_test;

  hb_set_t *codepoints = hb_set_create ();
  hb_set_add (codepoints, 0xC0);  /* Agrave */
  face_test = hb_subset_test_create_subset (face, hb_subset_test_create_input (codepoints));
  hb_set_destroy (codepoints);

  hb_subset_test_check (face_subset, face_test, HB_TAG ('C','F','F',' '));

  hb_face_destroy (face_test);
  hb_face_destroy (face_subset);
  hb_face_destroy (face);
}
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_subset;

  hb_set_t *codepoints = hb_set_create ();
  hb_set_add (codepoints, 0x660E);

  face_full_subset = hb_subset_test_create_subset (face_full, hb_subset_test_create_input (codepoints));
  hb_set_destroy (codepoints);

  hb_subset_test_check (face_subset, face_full_subset, HB_TAG ('p','o','s','t'));

  hb_face_destroy (face_full_subset);
  hb_face_destroy (face_full);
  hb_face_destroy (face_subset);
}
static void
test_subset_cff1_dotsection (void)
{
  hb_face_t *face = hb_test_open_font_file ("fonts/cff1_dotsect.otf");
  hb_face_t *face_subset = hb_test_open_font_file ("fonts/cff1_dotsect.nohints.otf");

  hb_set_t *codepoints = hb_set_create ();
  hb_subset_input_t *input;
  hb_face_t *face_test;
  hb_set_add (codepoints, 0x69);  /* i */
  input = hb_subset_test_create_input (codepoints);
  hb_subset_input_set_drop_hints (input, true);
  face_test = hb_subset_test_create_subset (face, input);
  hb_set_destroy (codepoints);

  hb_subset_test_check (face_subset, face_test, HB_TAG ('C','F','F',' '));

  hb_face_destroy (face_test);
  hb_face_destroy (face_subset);
  hb_face_destroy (face);
}