1 files changed, 21 insertions, 0 deletions
diff --git a/core/fxcrt/widestring_unittest.cpp b/core/fxcrt/widestring_unittest.cpp
index 9d38aa45e9..160dc929db 100644
--- a/core/fxcrt/widestring_unittest.cpp
+++ b/core/fxcrt/widestring_unittest.cpp
@@ -1025,6 +1025,27 @@ TEST(WideString, ToDefANSI) {
                          .ToDefANSI());
 }
 
+TEST(WideString, FromLocal) {
+  EXPECT_EQ(L"", WideString::FromLocal(ByteStringView()));
+#if _FX_PLATFORM_ == _FX_PLATFORM_WINDOWS_
+  const wchar_t* kResult =
+      L"x"
+      L"\u20ac"
+      L"\u00ff"
+      L"y";
+#else
+  const wchar_t* kResult =
+      L"x"
+      L"\u0080"
+      L"\u00ff"
+      L"y";
+#endif
+  EXPECT_EQ(kResult, WideString::FromLocal("x"
+                                           "\x80"
+                                           "\xff"
+                                           "y"));
+}
+
 TEST(WideStringView, FromVector) {
   std::vector<WideStringView::UnsignedType> null_vec;
   WideStringView null_string(null_vec);