1 files changed, 117 insertions, 0 deletions
diff --git a/src/test-sbuf-utf8-nconcat.c b/src/test-sbuf-utf8-nconcat.c
new file mode 100644
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--- /dev/null
+++ b/src/test-sbuf-utf8-nconcat.c
@@ -0,0 +1,117 @@
+/*
+ * Copyright (C) 2017 Will Storey <will@summercat.com>
+ *
+ * This file is part of ratpoison.
+ *
+ * ratpoison is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * ratpoison is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this software; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
+ * Boston, MA 02111-1307 USA
+ */
+
+#include "ratpoison.h"
+
+#include <assert.h>
+#include <locale.h>
+
+void test_sbuf_utf8_nconcat(void);
+
+int main(void)
+{
+  utf8_locale = 1;
+
+  test_sbuf_utf8_nconcat();
+  return 0;
+}
+
+void
+test_sbuf_utf8_nconcat(void)
+{
+  struct sbuf *buf = NULL;
+
+  /* Zero length string, no limit. */
+
+  buf = sbuf_new(0);
+  sbuf_utf8_nconcat(buf, "", -1);
+  assert(strcmp(sbuf_get(buf), "") == 0);
+  sbuf_free(buf);
+
+  /* Zero length string, non-zero limit. */
+
+  buf = sbuf_new(0);
+  sbuf_utf8_nconcat(buf, "", 5);
+  assert(strcmp(sbuf_get(buf), "") == 0);
+  sbuf_free(buf);
+
+  /* ASCII string, no limit. */
+
+  buf = sbuf_new(0);
+  sbuf_utf8_nconcat(buf, "hi there", -1);
+  assert(strcmp(sbuf_get(buf), "hi there") == 0);
+  sbuf_utf8_nconcat(buf, " you", -1);
+  assert(strcmp(sbuf_get(buf), "hi there you") == 0);
+  sbuf_free(buf);
+
+  /* ASCII string, non-zero limit, truncated. */
+
+  buf = sbuf_new(0);
+  sbuf_utf8_nconcat(buf, "hi there", 4);
+  assert(strcmp(sbuf_get(buf), "hi t") == 0);
+  sbuf_free(buf);
+
+  /* ASCII string, non-zero limit, not truncated. */
+
+  buf = sbuf_new(0);
+  sbuf_utf8_nconcat(buf, "hi", 4);
+  assert(strcmp(sbuf_get(buf), "hi") == 0);
+  sbuf_free(buf);
+
+  /* UTF-8 string, no limit. */
+
+  buf = sbuf_new(0);
+  /* 0xe2 0x84 0xa2 is U+2122, the trademark symbol. */
+  sbuf_utf8_nconcat(buf, "hi \xe2\x84\xa2 there", -1);
+  assert(strcmp(sbuf_get(buf), "hi \xe2\x84\xa2 there") == 0);
+  sbuf_free(buf);
+
+  /* UTF-8 string, non-zero limit, truncated at an okay spot counting either
+     by bytes or by characters. */
+
+  buf = sbuf_new(0);
+  sbuf_utf8_nconcat(buf, "hi \xe2\x84\xa2 there you", 11);
+  assert(strcmp(sbuf_get(buf), "hi \xe2\x84\xa2 there ") == 0);
+  sbuf_free(buf);
+
+  /* UTF-8 string, non-zero limit, truncated such that if the limit were in
+     bytes that we would cut in the middle of a character. */
+
+  buf = sbuf_new(0);
+  sbuf_utf8_nconcat(buf, "hi \xe2\x84\xa2 there you", 5);
+  assert(strcmp(sbuf_get(buf), "hi \xe2\x84\xa2 ") == 0);
+  sbuf_free(buf);
+
+  /* UTF-8 string, non-zero limit, not truncated. */
+
+  buf = sbuf_new(0);
+  sbuf_utf8_nconcat(buf, "hi \xe2\x84\xa2 there you", 20);
+  assert(strcmp(sbuf_get(buf), "hi \xe2\x84\xa2 there you") == 0);
+  sbuf_free(buf);
+
+  /* Invalid character. */
+
+  buf = sbuf_new(0);
+  /* This is an invalid UTF-8 sequence. It's missing 0xa2. */
+  sbuf_utf8_nconcat(buf, "hi \xe2\x84 there you", 20);
+  assert(strcmp(sbuf_get(buf), "hi \xe2\x84 there you") == 0);
+  sbuf_free(buf);
+}