1 files changed, 63 insertions, 0 deletions
diff --git a/regress/unittests/utf8/tests.c b/regress/unittests/utf8/tests.c
new file mode 100644
index 00000000..d18cadc5
--- /dev/null
+++ b/regress/unittests/utf8/tests.c
@@ -0,0 +1,63 @@
+/*	$OpenBSD: tests.c,v 1.1 2016/05/26 19:14:25 schwarze Exp $ */
+/*
+ * Regress test for the utf8.h *mprintf() API
+ *
+ * Written by Ingo Schwarze <schwarze@openbsd.org> in 2016
+ * and placed in the public domain.
+ */
+
+#include <locale.h>
+#include <string.h>
+
+#include "test_helper.h"
+
+#include "utf8.h"
+
+void	 one(const char *, const char *, int, int, int, const char *);
+
+void
+one(const char *name, const char *mbs, int width,
+    int wantwidth, int wantlen, const char *wants)
+{
+	char	 buf[16];
+	int	*wp;
+	int	 len;
+
+	if (wantlen == -2)
+		wantlen = strlen(wants);
+	(void)strlcpy(buf, "utf8_", sizeof(buf));
+	(void)strlcat(buf, name, sizeof(buf));
+	TEST_START(buf);
+	wp = wantwidth == -2 ? NULL : &width;
+	len = snmprintf(buf, sizeof(buf), wp, "%s", mbs);
+	ASSERT_INT_EQ(len, wantlen);
+	ASSERT_STRING_EQ(buf, wants);
+	ASSERT_INT_EQ(width, wantwidth);
+	TEST_DONE();
+}
+
+void
+tests(void)
+{
+	char	*loc;
+
+	TEST_START("utf8_setlocale");
+	loc = setlocale(LC_CTYPE, "en_US.UTF-8");
+	ASSERT_PTR_NE(loc, NULL);
+	TEST_DONE();
+
+	one("ascii", "x", -2, -2, -2, "x");
+	one("newline", "a\nb", -2, -2, -2, "a\nb");
+	one("cr", "a\rb", -2, -2, -2, "a\rb");
+	one("tab", "a\tb", -2, -2, -2, "a\tb");
+	one("esc", "\033x", -2, -2, -2, "\\033x");
+	one("inv_badbyte", "\377x", -2, -2, -2, "\\377x");
+	one("inv_nocont", "\341x", -2, -2, -2, "\\341x");
+	one("inv_nolead", "a\200b", -2, -2, -2, "a\\200b");
+	one("sz_ascii", "1234567890123456", -2, -2, 16, "123456789012345");
+	one("sz_esc", "123456789012\033", -2, -2, 16, "123456789012");
+	one("width_ascii", "123", 2, 2, -1, "12");
+	one("width_double", "a\343\201\201", 2, 1, -1, "a");
+	one("double_fit", "a\343\201\201", 3, 3, 4, "a\343\201\201");
+	one("double_spc", "a\343\201\201", 4, 3, 4, "a\343\201\201");
+}