1 files changed, 73 insertions, 0 deletions
diff --git a/xpcom/tests/TestUnicodeArguments.cpp b/xpcom/tests/TestUnicodeArguments.cpp
new file mode 100644
index 0000000000..a44f8a2f2e
--- /dev/null
+++ b/xpcom/tests/TestUnicodeArguments.cpp
@@ -0,0 +1,73 @@
+/**
+ * On Windows, a Unicode argument is passed as UTF-16 using ShellExecuteExW.
+ * On other platforms, it is passed as UTF-8
+ */
+
+static const int args_length = 4;
+#if defined(XP_WIN) && defined(_MSC_VER)
+#  define _UNICODE
+#  include <tchar.h>
+#  include <stdio.h>
+
+static const _TCHAR* expected_utf16[args_length] = {
+    // Latin-1
+    L"M\xF8z\xEEll\xE5",
+    // Cyrillic
+    L"\x41C\x43E\x437\x438\x43B\x43B\x430",
+    // Bengali
+    L"\x9AE\x9CB\x99C\x9BF\x9B2\x9BE",
+    // Cuneiform
+    L"\xD808\xDE2C\xD808\xDF63\xD808\xDDB7"};
+
+int wmain(int argc, _TCHAR* argv[]) {
+  printf("argc = %d\n", argc);
+
+  if (argc != args_length + 1) return -1;
+
+  for (int i = 1; i < argc; ++i) {
+    printf("expected[%d]: ", i - 1);
+    for (size_t j = 0; j < _tcslen(expected_utf16[i - 1]); ++j) {
+      printf("%x ", *(expected_utf16[i - 1] + j));
+    }
+    printf("\n");
+
+    printf("argv[%d]: ", i);
+    for (size_t j = 0; j < _tcslen(argv[i]); ++j) {
+      printf("%x ", *(argv[i] + j));
+    }
+    printf("\n");
+
+    if (_tcscmp(expected_utf16[i - 1], argv[i])) {
+      return i;
+    }
+  }
+
+  return 0;
+}
+#else
+#  include <string.h>
+#  include <stdio.h>
+
+static const char* expected_utf8[args_length] = {
+    // Latin-1
+    "M\xC3\xB8z\xC3\xAEll\xC3\xA5",
+    // Cyrillic
+    "\xD0\x9C\xD0\xBE\xD0\xB7\xD0\xB8\xD0\xBB\xD0\xBB\xD0\xB0",
+    // Bengali
+    "\xE0\xA6\xAE\xE0\xA7\x8B\xE0\xA6\x9C\xE0\xA6\xBF\xE0\xA6\xB2\xE0\xA6\xBE",
+    // Cuneiform
+    "\xF0\x92\x88\xAC\xF0\x92\x8D\xA3\xF0\x92\x86\xB7"};
+
+int main(int argc, char* argv[]) {
+  if (argc != args_length + 1) return -1;
+
+  for (int i = 1; i < argc; ++i) {
+    printf("argv[%d] = %s; expected = %s\n", i, argv[i], expected_utf8[i - 1]);
+    if (strcmp(expected_utf8[i - 1], argv[i])) {
+      return i;
+    }
+  }
+
+  return 0;
+}
+#endif