Add tests for mbstowcs

3 files changed, 32 insertions, 0 deletions

diff --git a/tests/Makefile b/tests/Makefile
index 5bc7fdb..be379cd 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -35,6 +35,8 @@ TARGETS= \
         test_getlogin_r_static       \
         test_mbsrtowcs_dynamic       \
         test_mbsrtowcs_static        \
+        test_mbstowcs_dynamic        \
+        test_mbstowcs_static         \
         test_memchr_dynamic_read     \
         test_memchr_static_read      \
         test_memcpy_dynamic_read     \
diff --git a/tests/test_mbstowcs_dynamic.c b/tests/test_mbstowcs_dynamic.c
new file mode 100644
index 0000000..81db020
--- /dev/null
+++ b/tests/test_mbstowcs_dynamic.c
@@ -0,0 +1,15 @@
+#include "common.h"
+
+#include <wchar.h>
+
+int main(int argc, char** argv) {
+  const char* mbstr = "z\u00df\u6c34\U0001f34c"; // or u8"zß水🍌"
+  wchar_t wstr[5];
+  mbstowcs(wstr, mbstr, 4);
+
+  CHK_FAIL_START
+  mbstowcs(wstr, mbstr, argc);
+  CHK_FAIL_END
+
+  return ret;
+}
diff --git a/tests/test_mbstowcs_static.c b/tests/test_mbstowcs_static.c
new file mode 100644
index 0000000..8dbdfa1
--- /dev/null
+++ b/tests/test_mbstowcs_static.c
@@ -0,0 +1,15 @@
+#include "common.h"
+
+#include <wchar.h>
+
+int main(int argc, char** argv) {
+  const char* mbstr = "z\u00df\u6c34\U0001f34c"; // or u8"zß水🍌"
+  wchar_t wstr[5];
+  mbstowcs(wstr, mbstr, 4);
+
+  CHK_FAIL_START
+  mbstowcs(wstr, mbstr, 16);
+  CHK_FAIL_END
+
+  return ret;
+}