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      1 // Copyright 2017 PDFium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "public/fpdf_catalog.h"
      6 
      7 #include "core/fpdfapi/cpdf_modulemgr.h"
      8 #include "core/fpdfapi/parser/cpdf_document.h"
      9 #include "core/fpdfapi/parser/cpdf_number.h"
     10 #include "core/fpdfapi/parser/cpdf_parser.h"
     11 #include "core/fpdfapi/parser/cpdf_string.h"
     12 #include "testing/gtest/include/gtest/gtest.h"
     13 #include "testing/test_support.h"
     14 
     15 #ifdef PDF_ENABLE_XFA
     16 #include "fpdfsdk/fpdfxfa/cpdfxfa_context.h"
     17 #endif  // PDF_ENABLE_XFA
     18 
     19 class CPDF_TestDocument : public CPDF_Document {
     20  public:
     21   CPDF_TestDocument() : CPDF_Document(nullptr) {}
     22 
     23   void SetRoot(CPDF_Dictionary* root) {
     24     m_pRootDict = root;
     25     GetRoot();
     26   }
     27 };
     28 
     29 #ifdef PDF_ENABLE_XFA
     30 class CPDF_TestXFAContext : public CPDFXFA_Context {
     31  public:
     32   CPDF_TestXFAContext()
     33       : CPDFXFA_Context(pdfium::MakeUnique<CPDF_TestDocument>()) {}
     34 
     35   void SetRoot(CPDF_Dictionary* root) {
     36     reinterpret_cast<CPDF_TestDocument*>(GetPDFDoc())->SetRoot(root);
     37   }
     38 
     39   CPDF_IndirectObjectHolder* GetHolder() { return GetPDFDoc(); }
     40 };
     41 using CPDF_TestPdfDocument = CPDF_TestXFAContext;
     42 #else   // PDF_ENABLE_XFA
     43 using CPDF_TestPdfDocument = CPDF_TestDocument;
     44 #endif  // PDF_ENABLE_XFA
     45 
     46 class PDFCatalogTest : public testing::Test {
     47  public:
     48   void SetUp() override {
     49     CPDF_ModuleMgr::Get()->Init();
     50 
     51     m_pDoc = pdfium::MakeUnique<CPDF_TestPdfDocument>();
     52 
     53     // Setup the root directory.
     54     m_pRootObj = pdfium::MakeUnique<CPDF_Dictionary>();
     55   }
     56 
     57   void TearDown() override {
     58     m_pDoc.reset();
     59     CPDF_ModuleMgr::Destroy();
     60   }
     61 
     62  protected:
     63   std::unique_ptr<CPDF_TestPdfDocument> m_pDoc;
     64   std::unique_ptr<CPDF_Dictionary> m_pRootObj;
     65 };
     66 
     67 TEST_F(PDFCatalogTest, IsTagged) {
     68   // Null doc
     69   EXPECT_FALSE(FPDFCatalog_IsTagged(nullptr));
     70 
     71   // No root
     72   m_pDoc->SetRoot(nullptr);
     73   EXPECT_FALSE(FPDFCatalog_IsTagged(m_pDoc.get()));
     74 
     75   // Empty root
     76   m_pDoc->SetRoot(m_pRootObj.get());
     77   EXPECT_FALSE(FPDFCatalog_IsTagged(m_pDoc.get()));
     78 
     79   // Root with other key
     80   m_pRootObj->SetNewFor<CPDF_String>("OTHER_KEY", "other value", false);
     81   EXPECT_FALSE(FPDFCatalog_IsTagged(m_pDoc.get()));
     82 
     83   // Root with empty MarkInfo
     84   CPDF_Dictionary* markInfoDict =
     85       m_pRootObj->SetNewFor<CPDF_Dictionary>("MarkInfo");
     86   EXPECT_FALSE(FPDFCatalog_IsTagged(m_pDoc.get()));
     87 
     88   // MarkInfo present but Marked is 0
     89   markInfoDict->SetNewFor<CPDF_Number>("Marked", 0);
     90   EXPECT_FALSE(FPDFCatalog_IsTagged(m_pDoc.get()));
     91 
     92   // MarkInfo present and Marked is 1, PDF is considered tagged.
     93   markInfoDict->SetNewFor<CPDF_Number>("Marked", 1);
     94   EXPECT_TRUE(FPDFCatalog_IsTagged(m_pDoc.get()));
     95 }
     96