Add the beginning of a unit test for hb-subset

test/api/test-subset.c

+/*
+ * Copyright © 2011  Google, Inc.
+ *
+ *  This is part of HarfBuzz, a text shaping library.
+ *
+ * Permission is hereby granted, without written agreement and without
+ * license or royalty fees, to use, copy, modify, and distribute this
+ * software and its documentation for any purpose, provided that the
+ * above copyright notice and the following two paragraphs appear in
+ * all copies of this software.
+ *
+ * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
+ * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
+ * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
+ * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ *
+ * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
+ * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
+ * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
+ * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+ *
+ * Google Author(s): Garret Rieger
+ */
+
+#include "hb-test.h"
+
+/* Unit tests for hb-subset.h */
+
+static const char test_data[] = "OTTO";
+
+static void
+test_subset (void)
+{
+  hb_blob_t *font_blob = hb_blob_create(test_data, sizeof(test_data),
+					HB_MEMORY_MODE_READONLY, NULL, NULL);
+  hb_face_t *face = hb_face_create(font_blob, 0);
+
+  hb_subset_profile_t *profile = hb_subset_profile_create();
+  hb_subset_input_t *input = hb_subset_input_create();
+  hb_subset_face_t *subset_face = hb_subset_face_create(face);
+
+  char output_data[100];
+  hb_blob_t *output = hb_blob_create(output_data, sizeof(output_data),
+				     HB_MEMORY_MODE_WRITABLE, NULL, NULL);
+
+  g_assert(hb_subset(profile, input, subset_face, output));
+  g_assert_cmpmem(test_data, 4, output_data, sizeof(output));
+
+  hb_blob_destroy(output);
+  hb_subset_face_destroy(subset_face);
+  hb_subset_input_destroy(input);
+  hb_subset_profile_destroy(profile);
+  hb_face_destroy(face);
+  hb_blob_destroy(font_blob);
+}
+
+int
+main (int argc, char **argv)
+{
+  hb_test_init (&argc, &argv);
+
+  hb_test_add (test_subset);
+
+  return hb_test_run();
+}