Revert "Merge to master: Take Jun's UTF16LE patches."

fpdfsdk/src/fpdftext_embeddertest.cpp

 // Copyright 2015 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 "public/fpdf_text.h"
 #include "public/fpdfview.h"
 #include "testing/embedder_test.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace {
@@ skipping 24 matching lines @@
   FPDF_TEXTPAGE textpage = FPDFText_LoadPage(page);
   EXPECT_NE(nullptr, textpage);
 
   static const char expected[] = "Hello, world!\r\nGoodbye, world!";
   unsigned short fixed_buffer[128];
   memset(fixed_buffer, 0xbd, sizeof(fixed_buffer));
 
   // Check includes the terminating NUL that is provided.
   int num_chars = FPDFText_GetText(textpage, 0, 128, fixed_buffer);
   ASSERT_GE(num_chars, 0);
-  EXPECT_EQ(sizeof(expected) - 1, static_cast<size_t>(num_chars));
-  EXPECT_TRUE(
-      check_unsigned_shorts(expected, fixed_buffer, sizeof(expected) - 1));
+  EXPECT_EQ(sizeof(expected), static_cast<size_t>(num_chars));
+  EXPECT_TRUE(check_unsigned_shorts(expected, fixed_buffer, sizeof(expected)));
 
   // Count does not include the terminating NUL in the string literal.
   EXPECT_EQ(sizeof(expected) - 1, FPDFText_CountChars(textpage));
   for (size_t i = 0; i < sizeof(expected) - 1; ++i) {
     EXPECT_EQ(static_cast<unsigned int>(expected[i]),
               FPDFText_GetUnicode(textpage, i))
         << " at " << i;
   }
 
   EXPECT_EQ(12.0, FPDFText_GetFontSize(textpage, 0));
@@ skipping 61 matching lines @@
   EXPECT_TRUE(check_unsigned_shorts(expected + 4, fixed_buffer, 1));
   EXPECT_EQ(0xbdbd, fixed_buffer[1]);
 
   memset(fixed_buffer, 0xbd, sizeof(fixed_buffer));
   EXPECT_EQ(9, FPDFText_GetBoundedText(textpage, 41.0, 56.0, 82.0, 48.0,
                                        fixed_buffer, 9));
   EXPECT_TRUE(check_unsigned_shorts(expected + 4, fixed_buffer, 9));
   EXPECT_EQ(0xbdbd, fixed_buffer[9]);
 
   memset(fixed_buffer, 0xbd, sizeof(fixed_buffer));
-  EXPECT_EQ(9, FPDFText_GetBoundedText(textpage, 41.0, 56.0, 82.0, 48.0,
-                                       fixed_buffer, 128));
+  EXPECT_EQ(10, FPDFText_GetBoundedText(textpage, 41.0, 56.0, 82.0, 48.0,
+                                        fixed_buffer, 128));
   EXPECT_TRUE(check_unsigned_shorts(expected + 4, fixed_buffer, 9));
-  EXPECT_EQ(0xbdbd, fixed_buffer[9]);
+  EXPECT_EQ(0u, fixed_buffer[9]);
+  EXPECT_EQ(0xbdbd, fixed_buffer[10]);
 
   FPDFText_ClosePage(textpage);
   UnloadPage(page);
 }
 
 TEST_F(FPDFTextEmbeddertest, TextSearch) {
   EXPECT_TRUE(OpenDocument("hello_world.pdf"));
   FPDF_PAGE page = LoadPage(0);
   EXPECT_NE(nullptr, page);
 
@@ skipping 119 matching lines @@
 
   FPDF_TEXTPAGE textpage = FPDFText_LoadPage(page);
   EXPECT_NE(nullptr, textpage);
 
   FPDF_PAGELINK pagelink = FPDFLink_LoadWebLinks(textpage);
   EXPECT_NE(nullptr, pagelink);
 
   // Page contains two HTTP-style URLs.
   EXPECT_EQ(2, FPDFLink_CountWebLinks(pagelink));
 
-  EXPECT_EQ(0, FPDFLink_GetURL(pagelink, 2, nullptr, 0));
-  EXPECT_EQ(0, FPDFLink_GetURL(pagelink, 1400, nullptr, 0));
-  EXPECT_EQ(0, FPDFLink_GetURL(pagelink, -1, nullptr, 0));
+  // Only a terminating NUL required for bogus links.
+  EXPECT_EQ(1, FPDFLink_GetURL(pagelink, 2, nullptr, 0));
+  EXPECT_EQ(1, FPDFLink_GetURL(pagelink, 1400, nullptr, 0));
+  EXPECT_EQ(1, FPDFLink_GetURL(pagelink, -1, nullptr, 0));
 
   // Query the number of characters required for each link (incl NUL).
-  EXPECT_EQ(24, FPDFLink_GetURL(pagelink, 0, nullptr, 0));
-  EXPECT_EQ(25, FPDFLink_GetURL(pagelink, 1, nullptr, 0));
+  EXPECT_EQ(25, FPDFLink_GetURL(pagelink, 0, nullptr, 0));
+  EXPECT_EQ(26, FPDFLink_GetURL(pagelink, 1, nullptr, 0));
 
   static const char expected_url[] = "http://example.com?q=foo";
   unsigned short fixed_buffer[128];
 
   // Retrieve a link with too small a buffer.  Buffer will not be
   // NUL-terminated, but must not be modified past indicated length,
   // so pre-fill with a pattern to check write bounds.
   memset(fixed_buffer, 0xbd, sizeof(fixed_buffer));
   EXPECT_EQ(1, FPDFLink_GetURL(pagelink, 0, fixed_buffer, 1));
   EXPECT_TRUE(check_unsigned_shorts(expected_url, fixed_buffer, 1));
   EXPECT_EQ(0xbdbd, fixed_buffer[1]);
 
   // Check buffer that doesn't have space for a terminating NUL.
   memset(fixed_buffer, 0xbd, sizeof(fixed_buffer));
   EXPECT_EQ(
       sizeof(expected_url) - 1,
       FPDFLink_GetURL(pagelink, 0, fixed_buffer, sizeof(expected_url) - 1));
   EXPECT_TRUE(check_unsigned_shorts(expected_url, fixed_buffer,
                                     sizeof(expected_url) - 1));
   EXPECT_EQ(0xbdbd, fixed_buffer[sizeof(expected_url) - 1]);
 
   // Retreive link with exactly-sized buffer.
   memset(fixed_buffer, 0xbd, sizeof(fixed_buffer));
-  EXPECT_EQ(sizeof(expected_url) - 1,
+  EXPECT_EQ(sizeof(expected_url),
             FPDFLink_GetURL(pagelink, 0, fixed_buffer, sizeof(expected_url)));
-  EXPECT_TRUE(check_unsigned_shorts(expected_url, fixed_buffer,
-                                    sizeof(expected_url) - 1));
-  EXPECT_EQ(0xbdbd, fixed_buffer[sizeof(expected_url) - 1]);
+  EXPECT_TRUE(
+      check_unsigned_shorts(expected_url, fixed_buffer, sizeof(expected_url)));
+  EXPECT_EQ(0u, fixed_buffer[sizeof(expected_url) - 1]);
+  EXPECT_EQ(0xbdbd, fixed_buffer[sizeof(expected_url)]);
 
   // Retreive link with ample-sized-buffer.
   memset(fixed_buffer, 0xbd, sizeof(fixed_buffer));
-  EXPECT_EQ(sizeof(expected_url) - 1,
+  EXPECT_EQ(sizeof(expected_url),
             FPDFLink_GetURL(pagelink, 0, fixed_buffer, 128));
-  EXPECT_TRUE(check_unsigned_shorts(expected_url, fixed_buffer,
-                                    sizeof(expected_url) - 1));
-  EXPECT_EQ(0xbdbd, fixed_buffer[sizeof(expected_url) - 1]);
+  EXPECT_TRUE(
+      check_unsigned_shorts(expected_url, fixed_buffer, sizeof(expected_url)));
+  EXPECT_EQ(0u, fixed_buffer[sizeof(expected_url) - 1]);
+  EXPECT_EQ(0xbdbd, fixed_buffer[sizeof(expected_url)]);
 
   // Each link rendered in a single rect in this test page.
   EXPECT_EQ(1, FPDFLink_CountRects(pagelink, 0));
   EXPECT_EQ(1, FPDFLink_CountRects(pagelink, 1));
 
   // Each link rendered in a single rect in this test page.
   EXPECT_EQ(0, FPDFLink_CountRects(pagelink, -1));
   EXPECT_EQ(0, FPDFLink_CountRects(pagelink, 2));
   EXPECT_EQ(0, FPDFLink_CountRects(pagelink, 10000));
 
@@ skipping 27 matching lines @@
   FPDFLink_GetRect(pagelink, -1, 0, &left, &top, &right, &bottom);
   EXPECT_EQ(-2.0, left);
   EXPECT_EQ(-2.0, right);
   EXPECT_EQ(-2.0, bottom);
   EXPECT_EQ(-2.0, top);
 
   FPDFLink_CloseWebLinks(pagelink);
   FPDFText_ClosePage(textpage);
   UnloadPage(page);
 }