81 lines
2.8 KiB
C++
81 lines
2.8 KiB
C++
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#include <gtest/gtest.h>
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#include "../src/qpdf/qpdf_extractor.hpp"
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#include "../src/qpdf/qpdf_writer.hpp"
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#include "../src/parser/lexer.hpp"
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#include "../src/parser/parser.hpp"
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#include "../src/parser/content_builder.hpp"
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#include "../src/serializer/content_serializer.hpp"
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#include "../src/serializer/ast_serializer.hpp"
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#include <filesystem>
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#include <fstream>
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#ifndef TEST_CORPUS_DIR
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#define TEST_CORPUS_DIR "../../corpus"
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#endif
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using namespace pdfengine;
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using namespace pdfengine::qpdf_layer;
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TEST(QpdfWriterTest, IntegrationReadModifyWrite) {
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std::filesystem::path sourcePath = std::filesystem::path(TEST_CORPUS_DIR) / "basic" / "hello_world.pdf";
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std::filesystem::path destPath = std::filesystem::path(TEST_CORPUS_DIR) / "basic" / "hello_world_modified.pdf";
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QpdfExtractor extractor;
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auto stream = extractor.extractPageStream(sourcePath.string(), 0);
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ASSERT_TRUE(stream.has_value());
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Lexer lexer(stream->decodedContent);
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auto tokens = lexer.tokenize();
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ContentParser parser(tokens);
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auto ops = parser.parse();
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ContentBuilder builder;
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auto objects = builder.build(ops);
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bool foundAndModified = false;
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for (auto& obj : objects) {
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if (obj->getType() == ContentObjectType::Text) {
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auto* textObj = static_cast<TextObject*>(obj.get());
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if (textObj->text == "Hello, world!") {
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textObj->text = "Hello, PDF Editor!";
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foundAndModified = true;
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break;
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}
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}
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}
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ASSERT_TRUE(foundAndModified) << "Could not find 'Hello, world!' to modify";
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ContentSerializer contentSerializer;
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auto newOps = contentSerializer.serialize(objects);
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AstSerializer astSerializer;
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std::string newRawStream = astSerializer.serialize(newOps);
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QpdfWriter writer;
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auto writeRes = writer.replacePageStreamAndSave(sourcePath.string(), destPath.string(), 0, newRawStream);
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ASSERT_TRUE(writeRes.has_value()) << writeRes.error();
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auto verifyStream = extractor.extractPageStream(destPath.string(), 0);
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ASSERT_TRUE(verifyStream.has_value());
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Lexer verifyLexer(verifyStream->decodedContent);
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auto verifyTokens = verifyLexer.tokenize();
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ContentParser verifyParser(verifyTokens);
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ContentBuilder verifyBuilder;
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auto verifyObjects = verifyBuilder.build(verifyParser.parse());
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bool verifiedModification = false;
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for (auto& obj : verifyObjects) {
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if (obj->getType() == ContentObjectType::Text) {
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auto* textObj = static_cast<TextObject*>(obj.get());
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if (textObj->text == "Hello, PDF Editor!") {
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verifiedModification = true;
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break;
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}
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}
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}
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EXPECT_TRUE(verifiedModification) << "Modified string was not successfully saved and reloaded!";
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std::filesystem::remove(destPath);
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}
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