tests/PDFPrimitivesTest.cpp - platform/external/skia - Git at Google

 /*
  * Copyright (C) 2010 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */

 #include <string>

 #include "Test.h"
 #include "SkPDFCatalog.h"
 #include "SkPDFStream.h"
 #include "SkPDFTypes.h"
 #include "SkScalar.h"
 #include "SkStream.h"

 static void CheckObjectOutput(skiatest::Reporter* reporter, SkPDFObject* obj,
                               const std::string& representation,
                               bool indirect) {
     size_t directSize = obj->getOutputSize(NULL, false);
     REPORTER_ASSERT(reporter, directSize == representation.size());

     SkDynamicMemoryWStream buffer;
     obj->emitObject(&buffer, NULL, false);
     REPORTER_ASSERT(reporter, directSize == buffer.getOffset());
     REPORTER_ASSERT(reporter, memcmp(buffer.getStream(), representation.c_str(),
                                      directSize) == 0);

     if (indirect) {
         // Indirect output.
         static char header[] = "1 0 obj\n";
         static size_t headerLen = strlen(header);
         static char footer[] = "\nendobj\n";
         static size_t footerLen = strlen(footer);

         SkPDFCatalog catalog;
         catalog.addObject(obj, false);

         size_t indirectSize = obj->getOutputSize(&catalog, true);
         REPORTER_ASSERT(reporter,
                         indirectSize == directSize + headerLen + footerLen);

         buffer.reset();
         obj->emitObject(&buffer, &catalog, true);
         REPORTER_ASSERT(reporter, indirectSize == buffer.getOffset());
         REPORTER_ASSERT(reporter, memcmp(buffer.getStream(), header,
                                          headerLen) == 0);
         REPORTER_ASSERT(reporter,
                         memcmp(buffer.getStream() + headerLen,
                                representation.c_str(), directSize) == 0);
         REPORTER_ASSERT(reporter,
                         memcmp(buffer.getStream() + headerLen + directSize,
                                footer, footerLen) == 0);
     }
 }

 static void TestCatalog(skiatest::Reporter* reporter) {
     SkPDFCatalog catalog;
     SkRefPtr<SkPDFInt> int1 = new SkPDFInt(1);
     int1->unref();  // SkRefPtr and new both took a reference.
     SkRefPtr<SkPDFInt> int2 = new SkPDFInt(2);
     int2->unref();  // SkRefPtr and new both took a reference.
     SkRefPtr<SkPDFInt> int3 = new SkPDFInt(3);
     int3->unref();  // SkRefPtr and new both took a reference.
     SkRefPtr<SkPDFInt> int1Again(int1.get());

     catalog.addObject(int1.get(), false);
     catalog.addObject(int2.get(), false);
     catalog.addObject(int3.get(), false);

     REPORTER_ASSERT(reporter, catalog.getObjectNumberSize(int1.get()) == 3);
     REPORTER_ASSERT(reporter, catalog.getObjectNumberSize(int2.get()) == 3);
     REPORTER_ASSERT(reporter, catalog.getObjectNumberSize(int3.get()) == 3);

     SkDynamicMemoryWStream buffer;
     catalog.emitObjectNumber(&buffer, int1.get());
     catalog.emitObjectNumber(&buffer, int2.get());
     catalog.emitObjectNumber(&buffer, int3.get());
     catalog.emitObjectNumber(&buffer, int1Again.get());
     char expectedResult[] = "1 02 03 01 0";
     REPORTER_ASSERT(reporter, memcmp(buffer.getStream(), expectedResult,
                                      strlen(expectedResult)) == 0);
 }

 static void TestObjectRef(skiatest::Reporter* reporter) {
     SkRefPtr<SkPDFInt> int1 = new SkPDFInt(1);
     int1->unref();  // SkRefPtr and new both took a reference.
     SkRefPtr<SkPDFInt> int2 = new SkPDFInt(2);
     int2->unref();  // SkRefPtr and new both took a reference.
     SkRefPtr<SkPDFObjRef> int2ref = new SkPDFObjRef(int2.get());
     int2ref->unref();  // SkRefPtr and new both took a reference.

     SkPDFCatalog catalog;
     catalog.addObject(int1.get(), false);
     catalog.addObject(int2.get(), false);
     REPORTER_ASSERT(reporter, catalog.getObjectNumberSize(int1.get()) == 3);
     REPORTER_ASSERT(reporter, catalog.getObjectNumberSize(int2.get()) == 3);

     char expectedResult[] = "2 0 R";
     SkDynamicMemoryWStream buffer;
     int2ref->emitObject(&buffer, &catalog, false);
     REPORTER_ASSERT(reporter, buffer.getOffset() == strlen(expectedResult));
     REPORTER_ASSERT(reporter, memcmp(buffer.getStream(), expectedResult,
                                      buffer.getOffset()) == 0);
 }

 static void TestPDFPrimitives(skiatest::Reporter* reporter) {
     SkRefPtr<SkPDFInt> int42 = new SkPDFInt(42);
     int42->unref();  // SkRefPtr and new both took a reference.
     CheckObjectOutput(reporter, int42.get(), "42", true);

     SkRefPtr<SkPDFScalar> realHalf = new SkPDFScalar(SK_ScalarHalf);
     realHalf->unref();  // SkRefPtr and new both took a reference.
     CheckObjectOutput(reporter, realHalf.get(), "0.5", true);

 #if defined(SK_SCALAR_IS_FLOAT)
     SkRefPtr<SkPDFScalar> bigScalar = new SkPDFScalar(110999.75);
     bigScalar->unref();  // SkRefPtr and new both took a reference.
 #if !defined(SK_ALLOW_LARGE_PDF_SCALARS)
     CheckObjectOutput(reporter, bigScalar.get(), "111000", true);
 #else
     CheckObjectOutput(reporter, bigScalar.get(), "110999.75", true);

     SkRefPtr<SkPDFScalar> biggerScalar = new SkPDFScalar(50000000.1);
     biggerScalar->unref();  // SkRefPtr and new both took a reference.
     CheckObjectOutput(reporter, biggerScalar.get(), "50000000", true);

     SkRefPtr<SkPDFScalar> smallestScalar = new SkPDFScalar(1.0/65536);
     smallestScalar->unref();  // SkRefPtr and new both took a reference.
     CheckObjectOutput(reporter, smallestScalar.get(), "0.00001526", true);
 #endif
 #endif

     SkRefPtr<SkPDFString> stringSimple = new SkPDFString("test ) string ( foo");
     stringSimple->unref();  // SkRefPtr and new both took a reference.
     CheckObjectOutput(reporter, stringSimple.get(), "(test \\) string \\( foo)",
                       true);
     SkRefPtr<SkPDFString> stringComplex =
         new SkPDFString("\ttest ) string ( foo");
     stringComplex->unref();  // SkRefPtr and new both took a reference.
     CheckObjectOutput(reporter, stringComplex.get(),
                       "<0974657374202920737472696E67202820666F6F>", true);

     SkRefPtr<SkPDFName> name = new SkPDFName("Test name\twith#tab");
     name->unref();  // SkRefPtr and new both took a reference.
     CheckObjectOutput(reporter, name.get(), "/Test#20name#09with#23tab", false);

     SkRefPtr<SkPDFArray> array = new SkPDFArray;
     array->unref();  // SkRefPtr and new both took a reference.
     CheckObjectOutput(reporter, array.get(), "[]", true);
     array->append(int42.get());
     CheckObjectOutput(reporter, array.get(), "[42]", true);
     array->append(realHalf.get());
     CheckObjectOutput(reporter, array.get(), "[42 0.5]", true);
     SkRefPtr<SkPDFInt> int0 = new SkPDFInt(0);
     int0->unref();  // SkRefPtr and new both took a reference.
     array->append(int0.get());
     CheckObjectOutput(reporter, array.get(), "[42 0.5 0]", true);
     SkRefPtr<SkPDFInt> int1 = new SkPDFInt(1);
     int1->unref();  // SkRefPtr and new both took a reference.
     array->setAt(0, int1.get());
     CheckObjectOutput(reporter, array.get(), "[1 0.5 0]", true);

     SkRefPtr<SkPDFDict> dict = new SkPDFDict;
     dict->unref();  // SkRefPtr and new both took a reference.
     CheckObjectOutput(reporter, dict.get(), "<<>>", true);
     SkRefPtr<SkPDFName> n1 = new SkPDFName("n1");
     n1->unref();  // SkRefPtr and new both took a reference.
     dict->insert(n1.get(), int42.get());
     CheckObjectOutput(reporter, dict.get(), "<</n1 42\n>>", true);
     SkRefPtr<SkPDFName> n2 = new SkPDFName("n2");
     n2->unref();  // SkRefPtr and new both took a reference.
     SkRefPtr<SkPDFName> n3 = new SkPDFName("n3");
     n3->unref();  // SkRefPtr and new both took a reference.
     dict->insert(n2.get(), realHalf.get());
     dict->insert(n3.get(), array.get());
     CheckObjectOutput(reporter, dict.get(),
                       "<</n1 42\n/n2 0.5\n/n3 [1 0.5 0]\n>>", true);

     char streamBytes[] = "Test\nFoo\tBar";
     SkRefPtr<SkMemoryStream> streamData = new SkMemoryStream(
         streamBytes, strlen(streamBytes), true);
     streamData->unref();  // SkRefPtr and new both took a reference.
     SkRefPtr<SkPDFStream> stream = new SkPDFStream(streamData.get());
     stream->unref();  // SkRefPtr and new both took a reference.
     CheckObjectOutput(reporter, stream.get(),
                       "<</Length 12\n>> stream\nTest\nFoo\tBar\nendstream",
                       true);
     stream->insert(n1.get(), int42.get());
     CheckObjectOutput(reporter, stream.get(),
                       "<</Length 12\n/n1 42\n>> stream\nTest\nFoo\tBar"
                       "\nendstream",
                       true);

     TestCatalog(reporter);

     TestObjectRef(reporter);
 }

 #include "TestClassDef.h"
 DEFINE_TESTCLASS("PDFPrimitives", PDFPrimitivesTestClass, TestPDFPrimitives)
	/*
	* Copyright (C) 2010 The Android Open Source Project
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/

	#include <string>

	#include "Test.h"
	#include "SkPDFCatalog.h"
	#include "SkPDFStream.h"
	#include "SkPDFTypes.h"
	#include "SkScalar.h"
	#include "SkStream.h"

	static void CheckObjectOutput(skiatest::Reporter* reporter, SkPDFObject* obj,
	const std::string& representation,
	bool indirect) {
	size_t directSize = obj->getOutputSize(NULL, false);
	REPORTER_ASSERT(reporter, directSize == representation.size());

	SkDynamicMemoryWStream buffer;
	obj->emitObject(&buffer, NULL, false);
	REPORTER_ASSERT(reporter, directSize == buffer.getOffset());
	REPORTER_ASSERT(reporter, memcmp(buffer.getStream(), representation.c_str(),
	directSize) == 0);

	if (indirect) {
	// Indirect output.
	static char header[] = "1 0 obj\n";
	static size_t headerLen = strlen(header);
	static char footer[] = "\nendobj\n";
	static size_t footerLen = strlen(footer);

	SkPDFCatalog catalog;
	catalog.addObject(obj, false);

	size_t indirectSize = obj->getOutputSize(&catalog, true);
	REPORTER_ASSERT(reporter,
	indirectSize == directSize + headerLen + footerLen);

	buffer.reset();
	obj->emitObject(&buffer, &catalog, true);
	REPORTER_ASSERT(reporter, indirectSize == buffer.getOffset());
	REPORTER_ASSERT(reporter, memcmp(buffer.getStream(), header,
	headerLen) == 0);
	REPORTER_ASSERT(reporter,
	memcmp(buffer.getStream() + headerLen,
	representation.c_str(), directSize) == 0);
	REPORTER_ASSERT(reporter,
	memcmp(buffer.getStream() + headerLen + directSize,
	footer, footerLen) == 0);
	}
	}

	static void TestCatalog(skiatest::Reporter* reporter) {
	SkPDFCatalog catalog;
	SkRefPtr<SkPDFInt> int1 = new SkPDFInt(1);
	int1->unref(); // SkRefPtr and new both took a reference.
	SkRefPtr<SkPDFInt> int2 = new SkPDFInt(2);
	int2->unref(); // SkRefPtr and new both took a reference.
	SkRefPtr<SkPDFInt> int3 = new SkPDFInt(3);
	int3->unref(); // SkRefPtr and new both took a reference.
	SkRefPtr<SkPDFInt> int1Again(int1.get());

	catalog.addObject(int1.get(), false);
	catalog.addObject(int2.get(), false);
	catalog.addObject(int3.get(), false);

	REPORTER_ASSERT(reporter, catalog.getObjectNumberSize(int1.get()) == 3);
	REPORTER_ASSERT(reporter, catalog.getObjectNumberSize(int2.get()) == 3);
	REPORTER_ASSERT(reporter, catalog.getObjectNumberSize(int3.get()) == 3);

	SkDynamicMemoryWStream buffer;
	catalog.emitObjectNumber(&buffer, int1.get());
	catalog.emitObjectNumber(&buffer, int2.get());
	catalog.emitObjectNumber(&buffer, int3.get());
	catalog.emitObjectNumber(&buffer, int1Again.get());
	char expectedResult[] = "1 02 03 01 0";
	REPORTER_ASSERT(reporter, memcmp(buffer.getStream(), expectedResult,
	strlen(expectedResult)) == 0);
	}

	static void TestObjectRef(skiatest::Reporter* reporter) {
	SkRefPtr<SkPDFInt> int1 = new SkPDFInt(1);
	int1->unref(); // SkRefPtr and new both took a reference.
	SkRefPtr<SkPDFInt> int2 = new SkPDFInt(2);
	int2->unref(); // SkRefPtr and new both took a reference.
	SkRefPtr<SkPDFObjRef> int2ref = new SkPDFObjRef(int2.get());
	int2ref->unref(); // SkRefPtr and new both took a reference.

	SkPDFCatalog catalog;
	catalog.addObject(int1.get(), false);
	catalog.addObject(int2.get(), false);
	REPORTER_ASSERT(reporter, catalog.getObjectNumberSize(int1.get()) == 3);
	REPORTER_ASSERT(reporter, catalog.getObjectNumberSize(int2.get()) == 3);

	char expectedResult[] = "2 0 R";
	SkDynamicMemoryWStream buffer;
	int2ref->emitObject(&buffer, &catalog, false);
	REPORTER_ASSERT(reporter, buffer.getOffset() == strlen(expectedResult));
	REPORTER_ASSERT(reporter, memcmp(buffer.getStream(), expectedResult,
	buffer.getOffset()) == 0);
	}

	static void TestPDFPrimitives(skiatest::Reporter* reporter) {
	SkRefPtr<SkPDFInt> int42 = new SkPDFInt(42);
	int42->unref(); // SkRefPtr and new both took a reference.
	CheckObjectOutput(reporter, int42.get(), "42", true);

	SkRefPtr<SkPDFScalar> realHalf = new SkPDFScalar(SK_ScalarHalf);
	realHalf->unref(); // SkRefPtr and new both took a reference.
	CheckObjectOutput(reporter, realHalf.get(), "0.5", true);

	#if defined(SK_SCALAR_IS_FLOAT)
	SkRefPtr<SkPDFScalar> bigScalar = new SkPDFScalar(110999.75);
	bigScalar->unref(); // SkRefPtr and new both took a reference.
	#if !defined(SK_ALLOW_LARGE_PDF_SCALARS)
	CheckObjectOutput(reporter, bigScalar.get(), "111000", true);
	#else
	CheckObjectOutput(reporter, bigScalar.get(), "110999.75", true);

	SkRefPtr<SkPDFScalar> biggerScalar = new SkPDFScalar(50000000.1);
	biggerScalar->unref(); // SkRefPtr and new both took a reference.
	CheckObjectOutput(reporter, biggerScalar.get(), "50000000", true);

	SkRefPtr<SkPDFScalar> smallestScalar = new SkPDFScalar(1.0/65536);
	smallestScalar->unref(); // SkRefPtr and new both took a reference.
	CheckObjectOutput(reporter, smallestScalar.get(), "0.00001526", true);
	#endif
	#endif

	SkRefPtr<SkPDFString> stringSimple = new SkPDFString("test ) string ( foo");
	stringSimple->unref(); // SkRefPtr and new both took a reference.
	CheckObjectOutput(reporter, stringSimple.get(), "(test \\) string \\( foo)",
	true);
	SkRefPtr<SkPDFString> stringComplex =
	new SkPDFString("\ttest ) string ( foo");
	stringComplex->unref(); // SkRefPtr and new both took a reference.
	CheckObjectOutput(reporter, stringComplex.get(),
	"<0974657374202920737472696E67202820666F6F>", true);

	SkRefPtr<SkPDFName> name = new SkPDFName("Test name\twith#tab");
	name->unref(); // SkRefPtr and new both took a reference.
	CheckObjectOutput(reporter, name.get(), "/Test#20name#09with#23tab", false);

	SkRefPtr<SkPDFArray> array = new SkPDFArray;
	array->unref(); // SkRefPtr and new both took a reference.
	CheckObjectOutput(reporter, array.get(), "[]", true);
	array->append(int42.get());
	CheckObjectOutput(reporter, array.get(), "[42]", true);
	array->append(realHalf.get());
	CheckObjectOutput(reporter, array.get(), "[42 0.5]", true);
	SkRefPtr<SkPDFInt> int0 = new SkPDFInt(0);
	int0->unref(); // SkRefPtr and new both took a reference.
	array->append(int0.get());
	CheckObjectOutput(reporter, array.get(), "[42 0.5 0]", true);
	SkRefPtr<SkPDFInt> int1 = new SkPDFInt(1);
	int1->unref(); // SkRefPtr and new both took a reference.
	array->setAt(0, int1.get());
	CheckObjectOutput(reporter, array.get(), "[1 0.5 0]", true);

	SkRefPtr<SkPDFDict> dict = new SkPDFDict;
	dict->unref(); // SkRefPtr and new both took a reference.
	CheckObjectOutput(reporter, dict.get(), "<<>>", true);
	SkRefPtr<SkPDFName> n1 = new SkPDFName("n1");
	n1->unref(); // SkRefPtr and new both took a reference.
	dict->insert(n1.get(), int42.get());
	CheckObjectOutput(reporter, dict.get(), "<</n1 42\n>>", true);
	SkRefPtr<SkPDFName> n2 = new SkPDFName("n2");
	n2->unref(); // SkRefPtr and new both took a reference.
	SkRefPtr<SkPDFName> n3 = new SkPDFName("n3");
	n3->unref(); // SkRefPtr and new both took a reference.
	dict->insert(n2.get(), realHalf.get());
	dict->insert(n3.get(), array.get());
	CheckObjectOutput(reporter, dict.get(),
	"<</n1 42\n/n2 0.5\n/n3 [1 0.5 0]\n>>", true);

	char streamBytes[] = "Test\nFoo\tBar";
	SkRefPtr<SkMemoryStream> streamData = new SkMemoryStream(
	streamBytes, strlen(streamBytes), true);
	streamData->unref(); // SkRefPtr and new both took a reference.
	SkRefPtr<SkPDFStream> stream = new SkPDFStream(streamData.get());
	stream->unref(); // SkRefPtr and new both took a reference.
	CheckObjectOutput(reporter, stream.get(),
	"<</Length 12\n>> stream\nTest\nFoo\tBar\nendstream",
	true);
	stream->insert(n1.get(), int42.get());
	CheckObjectOutput(reporter, stream.get(),
	"<</Length 12\n/n1 42\n>> stream\nTest\nFoo\tBar"
	"\nendstream",
	true);

	TestCatalog(reporter);

	TestObjectRef(reporter);
	}

	#include "TestClassDef.h"
	DEFINE_TESTCLASS("PDFPrimitives", PDFPrimitivesTestClass, TestPDFPrimitives)