[libcxx] [test] Fix the monetary locale curr_symbol test on Windows, Apple and FreeBSD

International currency symbols (like USD, EUR) are returned with a
trailing space, like "USD ", on previously supported Unix platforms.
On Windows, the locales return them without a trailing space.

Also adjust the test for expecting a different unicode sequence for
the national currency symbol for ru_RU.UTF-8 and zh_CN.UTF-8.

Differential Revision: https://reviews.llvm.org/D120547

libcxx/test/std/localization/locale.categories/category.monetary/locale.moneypunct.byname/curr_symbol.pass.cpp

@@ -6,13 +6,9 @@
 //
 //===----------------------------------------------------------------------===//
 //
-// XFAIL: darwin
-//
 // NetBSD does not support LC_MONETARY at the moment
 // XFAIL: netbsd
 
-// XFAIL: LIBCXX-WINDOWS-FIXME
-
 // REQUIRES: locale.en_US.UTF-8
 // REQUIRES: locale.fr_FR.UTF-8
 // REQUIRES: locale.ru_RU.UTF-8
@@ -86,28 +82,42 @@ int main(int, char**)
     }
 #endif
 
+#ifdef _WIN32
+    std::string curr_space = "";
+#else
+    std::string curr_space = " ";
+#endif
     {
         Fnf f(LOCALE_en_US_UTF_8, 1);
         assert(f.curr_symbol() == "$");
     }
     {
         Fnt f(LOCALE_en_US_UTF_8, 1);
-        assert(f.curr_symbol() == "USD ");
+        assert(f.curr_symbol() == "USD" + curr_space);
     }
 #ifndef TEST_HAS_NO_WIDE_CHARACTERS
+#ifdef _WIN32
+    std::wstring w_curr_space = L"";
+#else
+    std::wstring w_curr_space = L" ";
+#endif
     {
         Fwf f(LOCALE_en_US_UTF_8, 1);
         assert(f.curr_symbol() == L"$");
     }
     {
         Fwt f(LOCALE_en_US_UTF_8, 1);
-        assert(f.curr_symbol() == L"USD ");
+        assert(f.curr_symbol() == L"USD" + w_curr_space);
     }
 #endif
 
     {
         Fnf f(LOCALE_fr_FR_UTF_8, 1);
+#ifdef __APPLE__
+        assert(f.curr_symbol() == " Eu");
+#else
         assert(f.curr_symbol() == " \u20ac");
+#endif
     }
     {
         Fnt f(LOCALE_fr_FR_UTF_8, 1);
@@ -116,7 +126,11 @@ int main(int, char**)
 #ifndef TEST_HAS_NO_WIDE_CHARACTERS
     {
         Fwf f(LOCALE_fr_FR_UTF_8, 1);
+#ifdef __APPLE__
+        assert(f.curr_symbol() == L" Eu");
+#else
         assert(f.curr_symbol() == L" \u20ac");
+#endif
     }
     {
         Fwt f(LOCALE_fr_FR_UTF_8, 1);
@@ -131,11 +145,13 @@ int main(int, char**)
         // GLIBC >= 2.24 uses currency_symbol="<U20BD>"
         // See also: http://www.fileformat.info/info/unicode/char/20bd/index.htm
         if (!glibc_version_less_than("2.24"))
-          assert(f.curr_symbol() == " \u20BD");
+          assert(f.curr_symbol() == " \xE2\x82\xBD"); // \u20BD
         else
-          assert(f.curr_symbol() == " \xD1\x80\xD1\x83\xD0\xB1");
+          assert(f.curr_symbol() == " \xD1\x80\xD1\x83\xD0\xB1"); // \u0440\u0443\u0431
+#elif defined(_WIN32) || defined(__FreeBSD__)
+        assert(f.curr_symbol() == " \xE2\x82\xBD"); // \u20BD
 #else
-        assert(f.curr_symbol() == " \xD1\x80\xD1\x83\xD0\xB1");
+        assert(f.curr_symbol() == " \xD1\x80\xD1\x83\xD0\xB1."); // \u0440\u0443\u0431.
 #endif
     }
     {
@@ -149,9 +165,11 @@ int main(int, char**)
         if (!glibc_version_less_than("2.24"))
           assert(f.curr_symbol() == L" \u20BD");
         else
-          assert(f.curr_symbol() == L" \x440\x443\x431");
+          assert(f.curr_symbol() == L" \u0440\u0443\u0431");
+#elif defined(_WIN32) || defined(__FreeBSD__)
+        assert(f.curr_symbol() == L" \u20BD");
 #else
-        assert(f.curr_symbol() == L" \x440\x443\x431");
+        assert(f.curr_symbol() == L" \u0440\u0443\u0431.");
 #endif
     }
 
@@ -163,20 +181,28 @@ int main(int, char**)
 
     {
         Fnf f(LOCALE_zh_CN_UTF_8, 1);
-        assert(f.curr_symbol() == "\xEF\xBF\xA5");
+#ifdef _WIN32
+        assert(f.curr_symbol() == "\xC2\xA5"); // \u00A5
+#else
+        assert(f.curr_symbol() == "\xEF\xBF\xA5"); // \uFFE5
+#endif
     }
     {
         Fnt f(LOCALE_zh_CN_UTF_8, 1);
-        assert(f.curr_symbol() == "CNY ");
+        assert(f.curr_symbol() == "CNY" + curr_space);
     }
 #ifndef TEST_HAS_NO_WIDE_CHARACTERS
     {
         Fwf f(LOCALE_zh_CN_UTF_8, 1);
-        assert(f.curr_symbol() == L"\xFFE5");
+#ifdef _WIN32
+        assert(f.curr_symbol() == L"\u00A5");
+#else
+        assert(f.curr_symbol() == L"\uFFE5");
+#endif
     }
     {
         Fwt f(LOCALE_zh_CN_UTF_8, 1);
-        assert(f.curr_symbol() == L"CNY ");
+        assert(f.curr_symbol() == L"CNY" + w_curr_space);
     }
 #endif // TEST_HAS_NO_WIDE_CHARACTERS