Merge https://salsa.debian.org/debian/libgit2 into proxmox/bullseye

[libgit2.git] / tests / util / utf8.c

diff --git a/tests/util/utf8.c b/tests/util/utf8.c
new file mode 100644 (file)
index 0000000..3987603
--- /dev/null
+++ b/tests/util/utf8.c
@@ -0,0 +1,20 @@
+#include "clar_libgit2.h"
+#include "utf8.h"
+
+void test_utf8__char_length(void)
+{
+       cl_assert_equal_i(0, git_utf8_char_length("", 0));
+       cl_assert_equal_i(1, git_utf8_char_length("$", 1));
+       cl_assert_equal_i(5, git_utf8_char_length("abcde", 5));
+       cl_assert_equal_i(1, git_utf8_char_length("\xc2\xa2", 2));
+       cl_assert_equal_i(2, git_utf8_char_length("\x24\xc2\xa2", 3));
+       cl_assert_equal_i(1, git_utf8_char_length("\xf0\x90\x8d\x88", 4));
+
+       /* uncontinued character counted as single characters */
+       cl_assert_equal_i(2, git_utf8_char_length("\x24\xc2", 2));
+       cl_assert_equal_i(3, git_utf8_char_length("\x24\xc2\xc2\xa2", 4));
+
+       /* invalid characters are counted as single characters */
+       cl_assert_equal_i(4, git_utf8_char_length("\x24\xc0\xc0\x34", 4));
+       cl_assert_equal_i(4, git_utf8_char_length("\x24\xf5\xfd\xc2", 4));
+}