vcl: add initial CppunitTest_vcl_pdfexport

Invoke the PDF export filter and then use the PDF tokenizer from
xmlsecurity to assert the contents of created PDF file. The testcase
fails with commit 6db0f1feb1d9931d2726dd11a889c58815710ce0 (tdf#106059
PDF export: create a reference XObject for PDF images, 2017-02-22)
reverted.

Change-Id: I90526fef41d9560ae447f586df766bc50a491c43
Reviewed-on: https://gerrit.libreoffice.org/34609
Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>
Tested-by: Jenkins <ci@libreoffice.org>

4 files changed, 146 insertions, 0 deletions

diff --git a/vcl/CppunitTest_vcl_pdfexport.mk b/vcl/CppunitTest_vcl_pdfexport.mk
new file mode 100644
index 000000000000..8f0cbcdf47f9
--- /dev/null
+++ b/vcl/CppunitTest_vcl_pdfexport.mk
@@ -0,0 +1,42 @@
+# -*- Mode: makefile-gmake; tab-width: 4; indent-tabs-mode: t -*-
+#
+# This file is part of the LibreOffice project.
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+
+$(eval $(call gb_CppunitTest_CppunitTest,vcl_pdfexport))
+
+$(eval $(call gb_CppunitTest_add_exception_objects,vcl_pdfexport, \
+    vcl/qa/cppunit/pdfexport/pdfexport \
+))
+
+$(eval $(call gb_CppunitTest_use_sdk_api,vcl_pdfexport))
+
+$(eval $(call gb_CppunitTest_use_libraries,vcl_pdfexport, \
+	comphelper \
+	cppu \
+	cppuhelper \
+	sal \
+	test \
+	unotest \
+	utl \
+	tl \
+	xmlsecurity \
+	$(gb_UWINAPI) \
+))
+
+$(eval $(call gb_CppunitTest_use_external,vcl_pdfexport,boost_headers))
+
+$(eval $(call gb_CppunitTest_use_sdk_api,vcl_pdfexport))
+
+$(eval $(call gb_CppunitTest_use_ure,vcl_pdfexport))
+$(eval $(call gb_CppunitTest_use_vcl,vcl_pdfexport))
+
+$(eval $(call gb_CppunitTest_use_rdb,vcl_pdfexport,services))
+
+$(eval $(call gb_CppunitTest_use_configuration,vcl_pdfexport))
+
+# vim: set noet sw=4 ts=4:
diff --git a/vcl/Module_vcl.mk b/vcl/Module_vcl.mk
index 2180084aaa25..730a3b007df6 100644
--- a/vcl/Module_vcl.mk
+++ b/vcl/Module_vcl.mk
@@ -143,6 +143,7 @@ $(eval $(call gb_Module_add_check_targets,vcl,\
 	$(if $(MERGELIBS),,CppunitTest_vcl_wmf_test) \
 	CppunitTest_vcl_jpeg_read_write_test \
 	CppunitTest_vcl_svm_test \
+	CppunitTest_vcl_pdfexport \
 ))
 
 
diff --git a/vcl/qa/cppunit/pdfexport/data/tdf106059.odt b/vcl/qa/cppunit/pdfexport/data/tdf106059.odt
new file mode 100644
index 000000000000..a2c18037833e
--- /dev/null
+++ b/vcl/qa/cppunit/pdfexport/data/tdf106059.odt
diff --git a/vcl/qa/cppunit/pdfexport/pdfexport.cxx b/vcl/qa/cppunit/pdfexport/pdfexport.cxx
new file mode 100644
index 000000000000..bcc3345ae2b5
--- /dev/null
+++ b/vcl/qa/cppunit/pdfexport/pdfexport.cxx
@@ -0,0 +1,103 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#include <com/sun/star/frame/Desktop.hpp>
+#include <com/sun/star/frame/XStorable.hpp>
+
+#include <comphelper/processfactory.hxx>
+#include <cppuhelper/implbase.hxx>
+#include <test/bootstrapfixture.hxx>
+#include <unotest/macros_test.hxx>
+#include <unotools/mediadescriptor.hxx>
+#include <unotools/tempfile.hxx>
+#include <xmlsecurity/pdfio/pdfdocument.hxx>
+
+using namespace ::com::sun::star;
+
+namespace
+{
+
+const char* const DATA_DIRECTORY = "/vcl/qa/cppunit/pdfexport/data/";
+
+/// Tests the PDF export filter.
+class PdfExportTest : public test::BootstrapFixture, public unotest::MacrosTest
+{
+    uno::Reference<uno::XComponentContext> mxComponentContext;
+    uno::Reference<lang::XComponent> mxComponent;
+
+public:
+    virtual void setUp() override;
+    virtual void tearDown() override;
+    /// Tests that a pdf image is roundtripped back to PDF as a vector format.
+    void testTdf106059();
+
+    CPPUNIT_TEST_SUITE(PdfExportTest);
+    CPPUNIT_TEST(testTdf106059);
+    CPPUNIT_TEST_SUITE_END();
+};
+
+void PdfExportTest::setUp()
+{
+    test::BootstrapFixture::setUp();
+
+    mxComponentContext.set(comphelper::getComponentContext(getMultiServiceFactory()));
+    mxDesktop.set(frame::Desktop::create(mxComponentContext));
+}
+
+void PdfExportTest::tearDown()
+{
+    if (mxComponent.is())
+        mxComponent->dispose();
+
+    test::BootstrapFixture::tearDown();
+}
+
+void PdfExportTest::testTdf106059()
+{
+    // Import the bugdoc and export as PDF.
+    OUString aURL = m_directories.getURLFromSrc(DATA_DIRECTORY) + "tdf106059.odt";
+    mxComponent = loadFromDesktop(aURL);
+    CPPUNIT_ASSERT(mxComponent.is());
+
+    uno::Reference<frame::XStorable> xStorable(mxComponent, uno::UNO_QUERY);
+    utl::TempFile aTempFile;
+    aTempFile.EnableKillingFile();
+    utl::MediaDescriptor aMediaDescriptor;
+    aMediaDescriptor["FilterName"] <<= OUString("writer_pdf_Export");
+    xStorable->storeToURL(aTempFile.GetURL(), aMediaDescriptor.getAsConstPropertyValueList());
+
+    // Parse the export result.
+    xmlsecurity::pdfio::PDFDocument aDocument;
+    SvFileStream aStream(aTempFile.GetURL(), StreamMode::READ);
+    CPPUNIT_ASSERT(aDocument.Read(aStream));
+
+    // Assert that the XObject in the page resources dictionary is a reference XObject.
+    std::vector<xmlsecurity::pdfio::PDFObjectElement*> aPages = aDocument.GetPages();
+    // The document has one page.
+    CPPUNIT_ASSERT_EQUAL(static_cast<size_t>(1), aPages.size());
+    xmlsecurity::pdfio::PDFObjectElement* pResources = aPages[0]->LookupObject("Resources");
+    CPPUNIT_ASSERT(pResources);
+    auto pXObjects = dynamic_cast<xmlsecurity::pdfio::PDFDictionaryElement*>(pResources->Lookup("XObject"));
+    CPPUNIT_ASSERT(pXObjects);
+    // The page has one image.
+    CPPUNIT_ASSERT_EQUAL(static_cast<size_t>(1), pXObjects->GetItems().size());
+    xmlsecurity::pdfio::PDFObjectElement* pReferenceXObject = pXObjects->LookupObject(pXObjects->GetItems().begin()->first);
+    CPPUNIT_ASSERT(pReferenceXObject);
+    // The image is a reference XObject.
+    // This dictionary key was missing, so the XObject wasn't a reference one.
+    CPPUNIT_ASSERT(pReferenceXObject->Lookup("Ref"));
+}
+
+CPPUNIT_TEST_SUITE_REGISTRATION(PdfExportTest);
+
+}
+
+CPPUNIT_PLUGIN_IMPLEMENT();
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */