From 764ec513eecbebd12781bcc96ce81ed5e736ee92 Mon Sep 17 00:00:00 2001
From: Dan Sinclair <dsinclair@chromium.org>
Date: Mon, 14 Mar 2016 13:35:12 -0400
Subject: Move core/src/ up to core/.

This CL moves the core/src/ files up to core/ and fixes up the include guards,
includes and build files.

R=tsepez@chromium.org

Review URL: https://codereview.chromium.org/1800523005 .
---
 core/fxcrt/fx_basic_wstring_unittest.cpp | 524 +++++++++++++++++++++++++++++++
 1 file changed, 524 insertions(+)
 create mode 100644 core/fxcrt/fx_basic_wstring_unittest.cpp

(limited to 'core/fxcrt/fx_basic_wstring_unittest.cpp')

diff --git a/core/fxcrt/fx_basic_wstring_unittest.cpp b/core/fxcrt/fx_basic_wstring_unittest.cpp
new file mode 100644
index 0000000000..64d694c436
--- /dev/null
+++ b/core/fxcrt/fx_basic_wstring_unittest.cpp
@@ -0,0 +1,524 @@
+// Copyright 2014 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "core/include/fxcrt/fx_basic.h"
+#include "testing/fx_string_testhelpers.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+TEST(fxcrt, WideStringOperatorSubscript) {
+  // CFX_WideString includes the NUL terminator for non-empty strings.
+  CFX_WideString abc(L"abc");
+  EXPECT_EQ(L'a', abc[0]);
+  EXPECT_EQ(L'b', abc[1]);
+  EXPECT_EQ(L'c', abc[2]);
+  EXPECT_EQ(L'\0', abc[3]);
+}
+
+TEST(fxcrt, WideStringOperatorLT) {
+  CFX_WideString empty;
+  CFX_WideString a(L"a");
+  CFX_WideString abc(L"\x0110qq");  // Comes before despite endianness.
+  CFX_WideString def(L"\x1001qq");  // Comes after despite endianness.
+
+  EXPECT_FALSE(empty < empty);
+  EXPECT_FALSE(a < a);
+  EXPECT_FALSE(abc < abc);
+  EXPECT_FALSE(def < def);
+
+  EXPECT_TRUE(empty < a);
+  EXPECT_FALSE(a < empty);
+
+  EXPECT_TRUE(empty < abc);
+  EXPECT_FALSE(abc < empty);
+
+  EXPECT_TRUE(empty < def);
+  EXPECT_FALSE(def < empty);
+
+  EXPECT_TRUE(a < abc);
+  EXPECT_FALSE(abc < a);
+
+  EXPECT_TRUE(a < def);
+  EXPECT_FALSE(def < a);
+
+  EXPECT_TRUE(abc < def);
+  EXPECT_FALSE(def < abc);
+}
+
+TEST(fxcrt, WideStringOperatorEQ) {
+  CFX_WideString null_string;
+  EXPECT_TRUE(null_string == null_string);
+
+  CFX_WideString empty_string(L"");
+  EXPECT_TRUE(empty_string == empty_string);
+  EXPECT_TRUE(empty_string == null_string);
+  EXPECT_TRUE(null_string == empty_string);
+
+  CFX_WideString deleted_string(L"hello");
+  deleted_string.Delete(0, 5);
+  EXPECT_TRUE(deleted_string == deleted_string);
+  EXPECT_TRUE(deleted_string == null_string);
+  EXPECT_TRUE(deleted_string == empty_string);
+  EXPECT_TRUE(null_string == deleted_string);
+  EXPECT_TRUE(null_string == empty_string);
+
+  CFX_WideString wide_string(L"hello");
+  EXPECT_TRUE(wide_string == wide_string);
+  EXPECT_FALSE(wide_string == null_string);
+  EXPECT_FALSE(wide_string == empty_string);
+  EXPECT_FALSE(wide_string == deleted_string);
+  EXPECT_FALSE(null_string == wide_string);
+  EXPECT_FALSE(empty_string == wide_string);
+  EXPECT_FALSE(deleted_string == wide_string);
+
+  CFX_WideString wide_string_same1(L"hello");
+  EXPECT_TRUE(wide_string == wide_string_same1);
+  EXPECT_TRUE(wide_string_same1 == wide_string);
+
+  CFX_WideString wide_string_same2(wide_string);
+  EXPECT_TRUE(wide_string == wide_string_same2);
+  EXPECT_TRUE(wide_string_same2 == wide_string);
+
+  CFX_WideString wide_string1(L"he");
+  CFX_WideString wide_string2(L"hellp");
+  CFX_WideString wide_string3(L"hellod");
+  EXPECT_FALSE(wide_string == wide_string1);
+  EXPECT_FALSE(wide_string == wide_string2);
+  EXPECT_FALSE(wide_string == wide_string3);
+  EXPECT_FALSE(wide_string1 == wide_string);
+  EXPECT_FALSE(wide_string2 == wide_string);
+  EXPECT_FALSE(wide_string3 == wide_string);
+
+  CFX_WideStringC null_string_c;
+  CFX_WideStringC empty_string_c(L"");
+  EXPECT_TRUE(null_string == null_string_c);
+  EXPECT_TRUE(null_string == empty_string_c);
+  EXPECT_TRUE(empty_string == null_string_c);
+  EXPECT_TRUE(empty_string == empty_string_c);
+  EXPECT_TRUE(deleted_string == null_string_c);
+  EXPECT_TRUE(deleted_string == empty_string_c);
+  EXPECT_TRUE(null_string_c == null_string);
+  EXPECT_TRUE(empty_string_c == null_string);
+  EXPECT_TRUE(null_string_c == empty_string);
+  EXPECT_TRUE(empty_string_c == empty_string);
+  EXPECT_TRUE(null_string_c == deleted_string);
+  EXPECT_TRUE(empty_string_c == deleted_string);
+
+  CFX_WideStringC wide_string_c_same1(L"hello");
+  EXPECT_TRUE(wide_string == wide_string_c_same1);
+  EXPECT_TRUE(wide_string_c_same1 == wide_string);
+
+  CFX_WideStringC wide_string_c1(L"he");
+  CFX_WideStringC wide_string_c2(L"hellp");
+  CFX_WideStringC wide_string_c3(L"hellod");
+  EXPECT_FALSE(wide_string == wide_string_c1);
+  EXPECT_FALSE(wide_string == wide_string_c2);
+  EXPECT_FALSE(wide_string == wide_string_c3);
+  EXPECT_FALSE(wide_string_c1 == wide_string);
+  EXPECT_FALSE(wide_string_c2 == wide_string);
+  EXPECT_FALSE(wide_string_c3 == wide_string);
+
+  const wchar_t* c_null_string = nullptr;
+  const wchar_t* c_empty_string = L"";
+  EXPECT_TRUE(null_string == c_null_string);
+  EXPECT_TRUE(null_string == c_empty_string);
+  EXPECT_TRUE(empty_string == c_null_string);
+  EXPECT_TRUE(empty_string == c_empty_string);
+  EXPECT_TRUE(deleted_string == c_null_string);
+  EXPECT_TRUE(deleted_string == c_empty_string);
+  EXPECT_TRUE(c_null_string == null_string);
+  EXPECT_TRUE(c_empty_string == null_string);
+  EXPECT_TRUE(c_null_string == empty_string);
+  EXPECT_TRUE(c_empty_string == empty_string);
+  EXPECT_TRUE(c_null_string == deleted_string);
+  EXPECT_TRUE(c_empty_string == deleted_string);
+
+  const wchar_t* c_string_same1 = L"hello";
+  EXPECT_TRUE(wide_string == c_string_same1);
+  EXPECT_TRUE(c_string_same1 == wide_string);
+
+  const wchar_t* c_string1 = L"he";
+  const wchar_t* c_string2 = L"hellp";
+  const wchar_t* c_string3 = L"hellod";
+  EXPECT_FALSE(wide_string == c_string1);
+  EXPECT_FALSE(wide_string == c_string2);
+  EXPECT_FALSE(wide_string == c_string3);
+  EXPECT_FALSE(c_string1 == wide_string);
+  EXPECT_FALSE(c_string2 == wide_string);
+  EXPECT_FALSE(c_string3 == wide_string);
+}
+
+TEST(fxcrt, WideStringOperatorNE) {
+  CFX_WideString null_string;
+  EXPECT_FALSE(null_string != null_string);
+
+  CFX_WideString empty_string(L"");
+  EXPECT_FALSE(empty_string != empty_string);
+  EXPECT_FALSE(empty_string != null_string);
+  EXPECT_FALSE(null_string != empty_string);
+
+  CFX_WideString deleted_string(L"hello");
+  deleted_string.Delete(0, 5);
+  EXPECT_FALSE(deleted_string != deleted_string);
+  EXPECT_FALSE(deleted_string != null_string);
+  EXPECT_FALSE(deleted_string != empty_string);
+  EXPECT_FALSE(null_string != deleted_string);
+  EXPECT_FALSE(null_string != empty_string);
+
+  CFX_WideString wide_string(L"hello");
+  EXPECT_FALSE(wide_string != wide_string);
+  EXPECT_TRUE(wide_string != null_string);
+  EXPECT_TRUE(wide_string != empty_string);
+  EXPECT_TRUE(wide_string != deleted_string);
+  EXPECT_TRUE(null_string != wide_string);
+  EXPECT_TRUE(empty_string != wide_string);
+  EXPECT_TRUE(deleted_string != wide_string);
+
+  CFX_WideString wide_string_same1(L"hello");
+  EXPECT_FALSE(wide_string != wide_string_same1);
+  EXPECT_FALSE(wide_string_same1 != wide_string);
+
+  CFX_WideString wide_string_same2(wide_string);
+  EXPECT_FALSE(wide_string != wide_string_same2);
+  EXPECT_FALSE(wide_string_same2 != wide_string);
+
+  CFX_WideString wide_string1(L"he");
+  CFX_WideString wide_string2(L"hellp");
+  CFX_WideString wide_string3(L"hellod");
+  EXPECT_TRUE(wide_string != wide_string1);
+  EXPECT_TRUE(wide_string != wide_string2);
+  EXPECT_TRUE(wide_string != wide_string3);
+  EXPECT_TRUE(wide_string1 != wide_string);
+  EXPECT_TRUE(wide_string2 != wide_string);
+  EXPECT_TRUE(wide_string3 != wide_string);
+
+  CFX_WideStringC null_string_c;
+  CFX_WideStringC empty_string_c(L"");
+  EXPECT_FALSE(null_string != null_string_c);
+  EXPECT_FALSE(null_string != empty_string_c);
+  EXPECT_FALSE(empty_string != null_string_c);
+  EXPECT_FALSE(empty_string != empty_string_c);
+  EXPECT_FALSE(deleted_string != null_string_c);
+  EXPECT_FALSE(deleted_string != empty_string_c);
+  EXPECT_FALSE(null_string_c != null_string);
+  EXPECT_FALSE(empty_string_c != null_string);
+  EXPECT_FALSE(null_string_c != empty_string);
+  EXPECT_FALSE(empty_string_c != empty_string);
+
+  CFX_WideStringC wide_string_c_same1(L"hello");
+  EXPECT_FALSE(wide_string != wide_string_c_same1);
+  EXPECT_FALSE(wide_string_c_same1 != wide_string);
+
+  CFX_WideStringC wide_string_c1(L"he");
+  CFX_WideStringC wide_string_c2(L"hellp");
+  CFX_WideStringC wide_string_c3(L"hellod");
+  EXPECT_TRUE(wide_string != wide_string_c1);
+  EXPECT_TRUE(wide_string != wide_string_c2);
+  EXPECT_TRUE(wide_string != wide_string_c3);
+  EXPECT_TRUE(wide_string_c1 != wide_string);
+  EXPECT_TRUE(wide_string_c2 != wide_string);
+  EXPECT_TRUE(wide_string_c3 != wide_string);
+
+  const wchar_t* c_null_string = nullptr;
+  const wchar_t* c_empty_string = L"";
+  EXPECT_FALSE(null_string != c_null_string);
+  EXPECT_FALSE(null_string != c_empty_string);
+  EXPECT_FALSE(empty_string != c_null_string);
+  EXPECT_FALSE(empty_string != c_empty_string);
+  EXPECT_FALSE(deleted_string != c_null_string);
+  EXPECT_FALSE(deleted_string != c_empty_string);
+  EXPECT_FALSE(c_null_string != null_string);
+  EXPECT_FALSE(c_empty_string != null_string);
+  EXPECT_FALSE(c_null_string != empty_string);
+  EXPECT_FALSE(c_empty_string != empty_string);
+  EXPECT_FALSE(c_null_string != deleted_string);
+  EXPECT_FALSE(c_empty_string != deleted_string);
+
+  const wchar_t* c_string_same1 = L"hello";
+  EXPECT_FALSE(wide_string != c_string_same1);
+  EXPECT_FALSE(c_string_same1 != wide_string);
+
+  const wchar_t* c_string1 = L"he";
+  const wchar_t* c_string2 = L"hellp";
+  const wchar_t* c_string3 = L"hellod";
+  EXPECT_TRUE(wide_string != c_string1);
+  EXPECT_TRUE(wide_string != c_string2);
+  EXPECT_TRUE(wide_string != c_string3);
+  EXPECT_TRUE(c_string1 != wide_string);
+  EXPECT_TRUE(c_string2 != wide_string);
+  EXPECT_TRUE(c_string3 != wide_string);
+}
+
+TEST(fxcrt, WideStringConcatInPlace) {
+  CFX_WideString fred;
+  fred.ConcatInPlace(4, L"FRED");
+  EXPECT_EQ(L"FRED", fred);
+
+  fred.ConcatInPlace(2, L"DY");
+  EXPECT_EQ(L"FREDDY", fred);
+
+  fred.Delete(3, 3);
+  EXPECT_EQ(L"FRE", fred);
+
+  fred.ConcatInPlace(1, L"D");
+  EXPECT_EQ(L"FRED", fred);
+
+  CFX_WideString copy = fred;
+  fred.ConcatInPlace(2, L"DY");
+  EXPECT_EQ(L"FREDDY", fred);
+  EXPECT_EQ(L"FRED", copy);
+
+  // Test invalid arguments.
+  copy = fred;
+  fred.ConcatInPlace(-6, L"freddy");
+  CFX_WideString not_aliased(L"xxxxxx");
+  EXPECT_EQ(L"FREDDY", fred);
+  EXPECT_EQ(L"xxxxxx", not_aliased);
+}
+
+TEST(fxcrt, WideStringUTF16LE_Encode) {
+  struct UTF16LEEncodeCase {
+    CFX_WideString ws;
+    CFX_ByteString bs;
+  } utf16le_encode_cases[] = {
+      {L"", CFX_ByteString("\0\0", 2)},
+      {L"abc", CFX_ByteString("a\0b\0c\0\0\0", 8)},
+      {L"abcdef", CFX_ByteString("a\0b\0c\0d\0e\0f\0\0\0", 14)},
+      {L"abc\0def", CFX_ByteString("a\0b\0c\0\0\0", 8)},
+      {L"\xaabb\xccdd", CFX_ByteString("\xbb\xaa\xdd\xcc\0\0", 6)},
+      {L"\x3132\x6162", CFX_ByteString("\x32\x31\x62\x61\0\0", 6)},
+  };
+
+  for (size_t i = 0; i < FX_ArraySize(utf16le_encode_cases); ++i) {
+    EXPECT_EQ(utf16le_encode_cases[i].bs,
+              utf16le_encode_cases[i].ws.UTF16LE_Encode())
+        << " for case number " << i;
+  }
+}
+
+TEST(fxcrt, WideStringCOperatorSubscript) {
+  // CFX_WideStringC includes the NUL terminator for non-empty strings.
+  CFX_WideStringC abc(L"abc");
+  EXPECT_EQ(L'a', abc[0]);
+  EXPECT_EQ(L'b', abc[1]);
+  EXPECT_EQ(L'c', abc[2]);
+  EXPECT_EQ(L'\0', abc[3]);
+}
+
+TEST(fxcrt, WideStringCOperatorLT) {
+  CFX_WideStringC empty;
+  CFX_WideStringC a(L"a");
+  CFX_WideStringC abc(L"\x0110qq");  // Comes before despite endianness.
+  CFX_WideStringC def(L"\x1001qq");  // Comes after despite endianness.
+
+  EXPECT_FALSE(empty < empty);
+  EXPECT_FALSE(a < a);
+  EXPECT_FALSE(abc < abc);
+  EXPECT_FALSE(def < def);
+
+  EXPECT_TRUE(empty < a);
+  EXPECT_FALSE(a < empty);
+
+  EXPECT_TRUE(empty < abc);
+  EXPECT_FALSE(abc < empty);
+
+  EXPECT_TRUE(empty < def);
+  EXPECT_FALSE(def < empty);
+
+  EXPECT_TRUE(a < abc);
+  EXPECT_FALSE(abc < a);
+
+  EXPECT_TRUE(a < def);
+  EXPECT_FALSE(def < a);
+
+  EXPECT_TRUE(abc < def);
+  EXPECT_FALSE(def < abc);
+}
+
+TEST(fxcrt, WideStringCOperatorEQ) {
+  CFX_WideStringC wide_string_c(L"hello");
+  EXPECT_TRUE(wide_string_c == wide_string_c);
+
+  CFX_WideStringC wide_string_c_same1(L"hello");
+  EXPECT_TRUE(wide_string_c == wide_string_c_same1);
+  EXPECT_TRUE(wide_string_c_same1 == wide_string_c);
+
+  CFX_WideStringC wide_string_c_same2(wide_string_c);
+  EXPECT_TRUE(wide_string_c == wide_string_c_same2);
+  EXPECT_TRUE(wide_string_c_same2 == wide_string_c);
+
+  CFX_WideStringC wide_string_c1(L"he");
+  CFX_WideStringC wide_string_c2(L"hellp");
+  CFX_WideStringC wide_string_c3(L"hellod");
+  EXPECT_FALSE(wide_string_c == wide_string_c1);
+  EXPECT_FALSE(wide_string_c == wide_string_c2);
+  EXPECT_FALSE(wide_string_c == wide_string_c3);
+  EXPECT_FALSE(wide_string_c1 == wide_string_c);
+  EXPECT_FALSE(wide_string_c2 == wide_string_c);
+  EXPECT_FALSE(wide_string_c3 == wide_string_c);
+
+  CFX_WideString wide_string_same1(L"hello");
+  EXPECT_TRUE(wide_string_c == wide_string_same1);
+  EXPECT_TRUE(wide_string_same1 == wide_string_c);
+
+  CFX_WideString wide_string1(L"he");
+  CFX_WideString wide_string2(L"hellp");
+  CFX_WideString wide_string3(L"hellod");
+  EXPECT_FALSE(wide_string_c == wide_string1);
+  EXPECT_FALSE(wide_string_c == wide_string2);
+  EXPECT_FALSE(wide_string_c == wide_string3);
+  EXPECT_FALSE(wide_string1 == wide_string_c);
+  EXPECT_FALSE(wide_string2 == wide_string_c);
+  EXPECT_FALSE(wide_string3 == wide_string_c);
+
+  const wchar_t* c_string_same1 = L"hello";
+  EXPECT_TRUE(wide_string_c == c_string_same1);
+  EXPECT_TRUE(c_string_same1 == wide_string_c);
+
+  const wchar_t* c_string1 = L"he";
+  const wchar_t* c_string2 = L"hellp";
+  const wchar_t* c_string3 = L"hellod";
+  EXPECT_FALSE(wide_string_c == c_string1);
+  EXPECT_FALSE(wide_string_c == c_string2);
+  EXPECT_FALSE(wide_string_c == c_string3);
+
+  EXPECT_FALSE(c_string1 == wide_string_c);
+  EXPECT_FALSE(c_string2 == wide_string_c);
+  EXPECT_FALSE(c_string3 == wide_string_c);
+}
+
+TEST(fxcrt, WideStringCOperatorNE) {
+  CFX_WideStringC wide_string_c(L"hello");
+  EXPECT_FALSE(wide_string_c != wide_string_c);
+
+  CFX_WideStringC wide_string_c_same1(L"hello");
+  EXPECT_FALSE(wide_string_c != wide_string_c_same1);
+  EXPECT_FALSE(wide_string_c_same1 != wide_string_c);
+
+  CFX_WideStringC wide_string_c_same2(wide_string_c);
+  EXPECT_FALSE(wide_string_c != wide_string_c_same2);
+  EXPECT_FALSE(wide_string_c_same2 != wide_string_c);
+
+  CFX_WideStringC wide_string_c1(L"he");
+  CFX_WideStringC wide_string_c2(L"hellp");
+  CFX_WideStringC wide_string_c3(L"hellod");
+  EXPECT_TRUE(wide_string_c != wide_string_c1);
+  EXPECT_TRUE(wide_string_c != wide_string_c2);
+  EXPECT_TRUE(wide_string_c != wide_string_c3);
+  EXPECT_TRUE(wide_string_c1 != wide_string_c);
+  EXPECT_TRUE(wide_string_c2 != wide_string_c);
+  EXPECT_TRUE(wide_string_c3 != wide_string_c);
+
+  CFX_WideString wide_string_same1(L"hello");
+  EXPECT_FALSE(wide_string_c != wide_string_same1);
+  EXPECT_FALSE(wide_string_same1 != wide_string_c);
+
+  CFX_WideString wide_string1(L"he");
+  CFX_WideString wide_string2(L"hellp");
+  CFX_WideString wide_string3(L"hellod");
+  EXPECT_TRUE(wide_string_c != wide_string1);
+  EXPECT_TRUE(wide_string_c != wide_string2);
+  EXPECT_TRUE(wide_string_c != wide_string3);
+  EXPECT_TRUE(wide_string1 != wide_string_c);
+  EXPECT_TRUE(wide_string2 != wide_string_c);
+  EXPECT_TRUE(wide_string3 != wide_string_c);
+
+  const wchar_t* c_string_same1 = L"hello";
+  EXPECT_FALSE(wide_string_c != c_string_same1);
+  EXPECT_FALSE(c_string_same1 != wide_string_c);
+
+  const wchar_t* c_string1 = L"he";
+  const wchar_t* c_string2 = L"hellp";
+  const wchar_t* c_string3 = L"hellod";
+  EXPECT_TRUE(wide_string_c != c_string1);
+  EXPECT_TRUE(wide_string_c != c_string2);
+  EXPECT_TRUE(wide_string_c != c_string3);
+
+  EXPECT_TRUE(c_string1 != wide_string_c);
+  EXPECT_TRUE(c_string2 != wide_string_c);
+  EXPECT_TRUE(c_string3 != wide_string_c);
+}
+
+TEST(fxcrt, WideStringFormatWidth) {
+  {
+    CFX_WideString str;
+    str.Format(L"%5d", 1);
+    EXPECT_EQ(L"    1", str);
+  }
+
+  {
+    CFX_WideString str;
+    str.Format(L"%d", 1);
+    EXPECT_EQ(L"1", str);
+  }
+
+  {
+    CFX_WideString str;
+    str.Format(L"%*d", 5, 1);
+    EXPECT_EQ(L"    1", str);
+  }
+
+  {
+    CFX_WideString str;
+    str.Format(L"%-1d", 1);
+    EXPECT_EQ(L"1", str);
+  }
+
+  {
+    CFX_WideString str;
+    str.Format(L"%0d", 1);
+    EXPECT_EQ(L"1", str);
+  }
+
+  {
+    CFX_WideString str;
+    str.Format(L"%1048576d", 1);
+    EXPECT_EQ(L"Bad width", str);
+  }
+}
+
+TEST(fxcrt, WideStringFormatPrecision) {
+  {
+    CFX_WideString str;
+    str.Format(L"%.2f", 1.12345);
+    EXPECT_EQ(L"1.12", str);
+  }
+
+  {
+    CFX_WideString str;
+    str.Format(L"%.*f", 3, 1.12345);
+    EXPECT_EQ(L"1.123", str);
+  }
+
+  {
+    CFX_WideString str;
+    str.Format(L"%f", 1.12345);
+    EXPECT_EQ(L"1.123450", str);
+  }
+
+  {
+    CFX_WideString str;
+    str.Format(L"%-1f", 1.12345);
+    EXPECT_EQ(L"1.123450", str);
+  }
+
+  {
+    CFX_WideString str;
+    str.Format(L"%0f", 1.12345);
+    EXPECT_EQ(L"1.123450", str);
+  }
+
+  {
+    CFX_WideString str;
+    str.Format(L"%.1048576f", 1.2);
+    EXPECT_EQ(L"Bad precision", str);
+  }
+}
+
+TEST(fxcrt, EmptyWideString) {
+  CFX_WideString empty_str;
+  EXPECT_TRUE(empty_str.IsEmpty());
+  EXPECT_EQ(0, empty_str.GetLength());
+  const FX_WCHAR* cstr = empty_str.c_str();
+  EXPECT_EQ(0, FXSYS_wcslen(cstr));
+}
-- 
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