SkPDF: clean up uses of deprecated calls in tests

tests/PDFPrimitivesTest.cpp

 /*
  * Copyright 2010 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkBitmap.h"
 #include "SkCanvas.h"
 #include "SkData.h"
 #include "SkDocument.h"
 #include "SkFlate.h"
 #include "SkImageEncoder.h"
 #include "SkMatrix.h"
 #include "SkPDFCanon.h"
 #include "SkPDFDevice.h"
 #include "SkPDFStream.h"
 #include "SkPDFTypes.h"
 #include "SkReadBuffer.h"
 #include "SkScalar.h"
 #include "SkStream.h"
 #include "SkTypes.h"
 #include "Test.h"
 
 #define DUMMY_TEXT "DCT compessed stream."
 
-static bool stream_equals(const SkDynamicMemoryWStream& stream, size_t offset,
-                          const void* buffer, size_t len) {
-    SkAutoDataUnref data(stream.copyToData());
-    if (offset + len > data->size()) {
-        return false;
+namespace {
+struct Catalog {
+    SkPDFSubstituteMap substitutes;
+    SkPDFObjNumMap numbers;
+};
+}  // namespace
+
+template <typename T>
+static SkString emit_to_string(T& obj, Catalog* catPtr = NULL) {
+    Catalog catalog;
+    SkDynamicMemoryWStream buffer;
+    if (!catPtr) {
+        catPtr = &catalog;
     }
-    return memcmp(data->bytes() + offset, buffer, len) == 0;
+    obj.emitObject(&buffer, catPtr->numbers, catPtr->substitutes);
+    SkAutoTDelete<SkStreamAsset> asset(buffer.detachAsStream());
+    SkString tmp(asset->getLength());
+    asset->read(tmp.writable_str(), asset->getLength());
+    return tmp;
 }
 
-static void emit_object(SkPDFObject* object,
-                        SkWStream* stream,
-                        const SkPDFObjNumMap& objNumMap,
-                        const SkPDFSubstituteMap& substitutes,
-                        bool indirect) {
-    SkPDFObject* realObject = substitutes.getSubstitute(object);
-    if (indirect) {
-        stream->writeDecAsText(objNumMap.getObjectNumber(realObject));
-        stream->writeText(" 0 obj\n");  // Generation number is always 0.
-        realObject->emitObject(stream, objNumMap, substitutes);
-        stream->writeText("\nendobj\n");
-    } else {
-        realObject->emitObject(stream, objNumMap, substitutes);
-    }
+static bool eq(const SkString& str, const char* strPtr) {
+    size_t len = strlen(strPtr);
+    return len == str.size() && 0 == memcmp(str.c_str(), strPtr, len);
 }
 
-static size_t get_output_size(SkPDFObject* object,
-                              const SkPDFObjNumMap& objNumMap,
-                              const SkPDFSubstituteMap& substitutes,
-                              bool indirect) {
-    SkDynamicMemoryWStream buffer;
-    emit_object(object, &buffer, objNumMap, substitutes, indirect);
-    return buffer.getOffset();
+static bool eq(const SkString& str, const char* strPtr, size_t len) {
+    return len == str.size() && 0 == memcmp(str.c_str(), strPtr, len);
 }
 
-static void CheckObjectOutput(skiatest::Reporter* reporter, SkPDFObject* obj,
-                              const char* expectedData, size_t expectedSize,
-                              bool indirect) {
-    SkPDFSubstituteMap substituteMap;
-    SkPDFObjNumMap catalog;
-    size_t directSize = get_output_size(obj, catalog, substituteMap, false);
-    REPORTER_ASSERT(reporter, directSize == expectedSize);
+#define ASSERT_EMIT_EQ(REPORTER, OBJECT, STRING)                             \
+    do {                                                                     \
+        SkString result = emit_to_string(OBJECT);                            \
+        if (!eq(result, STRING)) {                                           \
+            REPORT_FAILURE(                                                  \
+                    REPORTER,                                                \
+                    "",                                                      \
+                    SkStringPrintf("'%s' != '%s'", STRING, result.c_str())); \
+        }                                                                    \
+    } while (false)
 
-    SkDynamicMemoryWStream buffer;
-    emit_object(obj, &buffer, catalog, substituteMap, false);
-    REPORTER_ASSERT(reporter, directSize == buffer.getOffset());
-    if (!stream_equals(buffer, 0, expectedData, directSize)) {
-        SkAutoTDelete<SkStreamAsset> asset(buffer.detachAsStream());
-        SkString s(asset->getLength());
-        asset->read(s.writable_str(), s.size());
-        ERRORF(reporter, "!stream_equals() '%s' '%s'", expectedData, s.c_str());
-    }
-
-    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);
-
-        catalog.addObject(obj);
-
-        size_t indirectSize =
-                get_output_size(obj, catalog, substituteMap, true);
-        REPORTER_ASSERT(reporter,
-                        indirectSize == directSize + headerLen + footerLen);
-
-        buffer.reset();
-        emit_object(obj, &buffer, catalog, substituteMap, true);
-        REPORTER_ASSERT(reporter, indirectSize == buffer.getOffset());
-        REPORTER_ASSERT(reporter, stream_equals(buffer, 0, header, headerLen));
-        REPORTER_ASSERT(reporter, stream_equals(buffer, headerLen, expectedData,
-                                                directSize));
-        REPORTER_ASSERT(reporter, stream_equals(buffer, headerLen + directSize,
-                                                footer, footerLen));
-    }
-}
-
-static void SimpleCheckObjectOutput(skiatest::Reporter* reporter,
-                                    SkPDFObject* obj,
-                                    const char* expectedResult) {
-    CheckObjectOutput(reporter, obj, expectedResult,
-                      strlen(expectedResult), true);
-}
+#define ASSERT_EMIT_EQL(REPORTER, OBJECT, STRING, LEN)                       \
+    do {                                                                     \
+        SkString result = emit_to_string(OBJECT);                            \
+        if (!eq(result, STRING, LEN)) {                                      \
+            REPORT_FAILURE(                                                  \
+                    REPORTER,                                                \
+                    "",                                                      \
+                    SkStringPrintf("'%s' != '%s'", STRING, result.c_str())); \
+        }                                                                    \
+    } while (false)
 
 static void TestPDFStream(skiatest::Reporter* reporter) {
     char streamBytes[] = "Test\nFoo\tBar";
     SkAutoTDelete<SkMemoryStream> streamData(new SkMemoryStream(
         streamBytes, strlen(streamBytes), true));
     SkAutoTUnref<SkPDFStream> stream(new SkPDFStream(streamData.get()));
-    SimpleCheckObjectOutput(
-        reporter, stream.get(),
-        "<</Length 12>> stream\nTest\nFoo\tBar\nendstream");
-    stream->insert("Attribute", new SkPDFInt(42))->unref();
-    SimpleCheckObjectOutput(reporter, stream.get(),
-                            "<</Length 12\n/Attribute 42>> stream\n"
-                                "Test\nFoo\tBar\nendstream");
+    ASSERT_EMIT_EQ(reporter,
+                   *stream,
+                   "<</Length 12>> stream\nTest\nFoo\tBar\nendstream");
+    stream->insertInt("Attribute", 42);
+    ASSERT_EMIT_EQ(reporter,
+                   *stream,
+                   "<</Length 12\n/Attribute 42>> stream\n"
+                   "Test\nFoo\tBar\nendstream");
 
     {
         char streamBytes2[] = "This is a longer string, so that compression "
                               "can do something with it. With shorter strings, "
                               "the short circuit logic cuts in and we end up "
                               "with an uncompressed string.";
         SkAutoDataUnref streamData2(SkData::NewWithCopy(streamBytes2,
                                                         strlen(streamBytes2)));
         SkAutoTUnref<SkPDFStream> stream(new SkPDFStream(streamData2.get()));
 
         SkDynamicMemoryWStream compressedByteStream;
         SkFlate::Deflate(streamData2.get(), &compressedByteStream);
         SkAutoDataUnref compressedData(compressedByteStream.copyToData());
 
         SkDynamicMemoryWStream expected;
         expected.writeText("<</Filter /FlateDecode\n/Length 116>> stream\n");
         expected.write(compressedData->data(), compressedData->size());
         expected.writeText("\nendstream");
         SkAutoDataUnref expectedResultData2(expected.copyToData());
-        CheckObjectOutput(reporter, stream.get(),
-                          (const char*) expectedResultData2->data(),
-                          expectedResultData2->size(), true);
+        ASSERT_EMIT_EQL(reporter,
+                        *stream,
+                        (const char*)expectedResultData2->data(),
+                        expectedResultData2->size());
     }
 }
 
 static void TestCatalog(skiatest::Reporter* reporter) {
     SkPDFSubstituteMap substituteMap;
     SkPDFObjNumMap catalog;
-    SkAutoTUnref<SkPDFInt> int1(new SkPDFInt(1));
-    SkAutoTUnref<SkPDFInt> int2(new SkPDFInt(2));
-    SkAutoTUnref<SkPDFInt> int3(new SkPDFInt(3));
-    int1.get()->ref();
-    SkAutoTUnref<SkPDFInt> int1Again(int1.get());
+    SkAutoTUnref<SkPDFArray> a1(new SkPDFArray);
+    SkAutoTUnref<SkPDFArray> a2(new SkPDFArray);
+    SkAutoTUnref<SkPDFArray> a3(new SkPDFArray);
 
-    catalog.addObject(int1.get());
-    catalog.addObject(int2.get());
-    catalog.addObject(int3.get());
+    catalog.addObject(a1.get());
+    catalog.addObject(a2.get());
+    catalog.addObject(a3.get());
 
-    REPORTER_ASSERT(reporter, catalog.getObjectNumber(int1.get()) == 1);
-    REPORTER_ASSERT(reporter, catalog.getObjectNumber(int2.get()) == 2);
-    REPORTER_ASSERT(reporter, catalog.getObjectNumber(int3.get()) == 3);
-    REPORTER_ASSERT(reporter, catalog.getObjectNumber(int1Again.get()) == 1);
+    REPORTER_ASSERT(reporter, catalog.getObjectNumber(a1.get()) == 1);
+    REPORTER_ASSERT(reporter, catalog.getObjectNumber(a2.get()) == 2);
+    REPORTER_ASSERT(reporter, catalog.getObjectNumber(a3.get()) == 3);
+    REPORTER_ASSERT(reporter, catalog.getObjectNumber(a1.get()) == 1);

[tomhudson, 2015/04/27 18:41:37]

With the loss of int1Again, it looks like this isn't quite testing the same
thing any more?

[hal.canary, 2015/04/28 03:52:57]

int1Again.get() == int1.get(), so all it tested was that repeated calls to the
catalog returned the same thing.

 }
 
 static void TestObjectRef(skiatest::Reporter* reporter) {

[tomhudson, 2015/04/27 18:41:37]

Nit: it's hard to see how this test is testing ObjectRef. If the code can't be
clearer, can it get a 2-line comment?

[hal.canary, 2015/04/28 03:52:57]

// If appendObjRef misbehaves, then the result would be [[]], not [1 0 R].

-    SkAutoTUnref<SkPDFInt> int1(new SkPDFInt(1));
-    SkAutoTUnref<SkPDFInt> int2(new SkPDFInt(2));
-    SkAutoTUnref<SkPDFObjRef> int2ref(new SkPDFObjRef(int2.get()));
+    SkAutoTUnref<SkPDFArray> a1(new SkPDFArray);
+    SkAutoTUnref<SkPDFArray> a2(new SkPDFArray);
+    a2->appendObjRef(SkRef(a1.get()));
 
-    SkPDFSubstituteMap substituteMap;
-    SkPDFObjNumMap catalog;
-    catalog.addObject(int1.get());
-    catalog.addObject(int2.get());
-    REPORTER_ASSERT(reporter, catalog.getObjectNumber(int1.get()) == 1);
-    REPORTER_ASSERT(reporter, catalog.getObjectNumber(int2.get()) == 2);
+    Catalog catalog;
+    catalog.numbers.addObject(a1.get());
+    REPORTER_ASSERT(reporter, catalog.numbers.getObjectNumber(a1.get()) == 1);
 
-    char expectedResult[] = "2 0 R";
-    SkDynamicMemoryWStream buffer;
-    int2ref->emitObject(&buffer, catalog, substituteMap);
-    REPORTER_ASSERT(reporter, buffer.getOffset() == strlen(expectedResult));
-    REPORTER_ASSERT(reporter, stream_equals(buffer, 0, expectedResult,
-                                            buffer.getOffset()));
+    SkString result = emit_to_string(*a2, &catalog);
+    REPORTER_ASSERT(reporter, eq(result, "[1 0 R]"));
 }
 
 static void TestSubstitute(skiatest::Reporter* reporter) {
     SkAutoTUnref<SkPDFDict> proxy(new SkPDFDict());
     SkAutoTUnref<SkPDFDict> stub(new SkPDFDict());
 
-    proxy->insert("Value", new SkPDFInt(33))->unref();
-    stub->insert("Value", new SkPDFInt(44))->unref();
+    proxy->insertInt("Value", 33);
+    stub->insertInt("Value", 44);
 
     SkPDFSubstituteMap substituteMap;
     substituteMap.setSubstitute(proxy.get(), stub.get());
     SkPDFObjNumMap catalog;
     catalog.addObject(proxy.get());
 
     REPORTER_ASSERT(reporter, stub.get() == substituteMap.getSubstitute(proxy));
     REPORTER_ASSERT(reporter, proxy.get() != substituteMap.getSubstitute(stub));
 }
 
 // This test used to assert without the fix submitted for
 // http://code.google.com/p/skia/issues/detail?id=1083.
 // SKP files might have invalid glyph ids. This test ensures they are ignored,
 // and there is no assert on input data in Debug mode.
 static void test_issue1083() {
     SkDynamicMemoryWStream outStream;
     SkAutoTUnref<SkDocument> doc(SkDocument::CreatePDF(&outStream));
     SkCanvas* canvas = doc->beginPage(100.0f, 100.0f);
     SkPaint paint;
     paint.setTextEncoding(SkPaint::kGlyphID_TextEncoding);
 
     uint16_t glyphID = 65000;
     canvas->drawText(&glyphID, 2, 0, 0, paint);
 
     doc->close();
 }
 
 DEF_TEST(PDFPrimitives, reporter) {
-    SkAutoTUnref<SkPDFInt> int42(new SkPDFInt(42));
-    SimpleCheckObjectOutput(reporter, int42.get(), "42");
+    SkPDFUnion int42 = SkPDFUnion::Int(42);
+    ASSERT_EMIT_EQ(reporter, int42, "42");
 
-    SkAutoTUnref<SkPDFScalar> realHalf(new SkPDFScalar(SK_ScalarHalf));
-    SimpleCheckObjectOutput(reporter, realHalf.get(), "0.5");
+    SkPDFUnion realHalf = SkPDFUnion::Scalar(SK_ScalarHalf);
+    ASSERT_EMIT_EQ(reporter, realHalf, "0.5");
 
-    SkAutoTUnref<SkPDFScalar> bigScalar(new SkPDFScalar(110999.75f));
+    SkPDFUnion bigScalar = SkPDFUnion::Scalar(110999.75f);
 #if !defined(SK_ALLOW_LARGE_PDF_SCALARS)
-    SimpleCheckObjectOutput(reporter, bigScalar.get(), "111000");
+    ASSERT_EMIT_EQ(reporter, bigScalar, "111000");
 #else
-    SimpleCheckObjectOutput(reporter, bigScalar.get(), "110999.75");
+    ASSERT_EMIT_EQ(reporter, bigScalar, "110999.75");
 
-    SkAutoTUnref<SkPDFScalar> biggerScalar(new SkPDFScalar(50000000.1));
-    SimpleCheckObjectOutput(reporter, biggerScalar.get(), "50000000");
+    SkPDFUnion biggerScalar = SkPDFUnion::Scalar(50000000.1);
+    ASSERT_EMIT_EQ(reporter, biggerScalar, "50000000");
 
-    SkAutoTUnref<SkPDFScalar> smallestScalar(new SkPDFScalar(1.0/65536));
-    SimpleCheckObjectOutput(reporter, smallestScalar.get(), "0.00001526");
+    SkPDFUnion smallestScalar = SkPDFUnion::Scalar(1.0 / 65536);
+    ASSERT_EMIT_EQ(reporter, smallestScalar, "0.00001526");
 #endif
 
-    SkAutoTUnref<SkPDFString> stringSimple(
-        new SkPDFString("test ) string ( foo"));
-    SimpleCheckObjectOutput(reporter, stringSimple.get(),
-                            "(test \\) string \\( foo)");
-    SkAutoTUnref<SkPDFString> stringComplex(
-        new SkPDFString("\ttest ) string ( foo"));
-    SimpleCheckObjectOutput(reporter, stringComplex.get(),
-                            "<0974657374202920737472696E67202820666F6F>");
+    SkPDFUnion stringSimple = SkPDFUnion::String("test ) string ( foo");
+    ASSERT_EMIT_EQ(reporter, stringSimple, "(test \\) string \\( foo)");
 
-    SkAutoTUnref<SkPDFName> name(new SkPDFName("Test name\twith#tab"));
-    const char expectedResult[] = "/Test#20name#09with#23tab";
-    CheckObjectOutput(reporter, name.get(), expectedResult,
-                      strlen(expectedResult), false);
+    SkString stringComplexInput("\ttest ) string ( foo");
+    SkPDFUnion stringComplex = SkPDFUnion::String(stringComplexInput);
+    ASSERT_EMIT_EQ(reporter,
+                   stringComplex,
+                   "<0974657374202920737472696E67202820666F6F>");
 
-    SkAutoTUnref<SkPDFName> escapedName(new SkPDFName("A#/%()<>[]{}B"));
-    const char escapedNameExpected[] = "/A#23#2F#25#28#29#3C#3E#5B#5D#7B#7DB";
-    CheckObjectOutput(reporter, escapedName.get(), escapedNameExpected,
-                      strlen(escapedNameExpected), false);
+    SkString nameInput("Test name\twith#tab");
+    SkPDFUnion name = SkPDFUnion::Name(nameInput);
+    ASSERT_EMIT_EQ(reporter, name, "/Test#20name#09with#23tab");
+
+    SkString nameInput2("A#/%()<>[]{}B");
+    SkPDFUnion name2 = SkPDFUnion::Name(nameInput2);
+    ASSERT_EMIT_EQ(reporter, name2, "/A#23#2F#25#28#29#3C#3E#5B#5D#7B#7DB");
 
     // Test that we correctly handle characters with the high-bit set.
-    const unsigned char highBitCString[] = {0xDE, 0xAD, 'b', 'e', 0xEF, 0};
-    SkAutoTUnref<SkPDFName> highBitName(
-        new SkPDFName((const char*)highBitCString));
-    const char highBitExpectedResult[] = "/#DE#ADbe#EF";
-    CheckObjectOutput(reporter, highBitName.get(), highBitExpectedResult,
-                      strlen(highBitExpectedResult), false);
+    SkString highBitString(
+            "\xDE\xAD"
+            "be\xEF");
+    SkPDFUnion highBitName = SkPDFUnion::Name(highBitString);
+    ASSERT_EMIT_EQ(reporter, highBitName, "/#DE#ADbe#EF");
 
     SkAutoTUnref<SkPDFArray> array(new SkPDFArray);
-    SimpleCheckObjectOutput(reporter, array.get(), "[]");
-    array->append(int42.get());
-    SimpleCheckObjectOutput(reporter, array.get(), "[42]");
-    array->append(realHalf.get());
-    SimpleCheckObjectOutput(reporter, array.get(), "[42 0.5]");
-    SkAutoTUnref<SkPDFInt> int0(new SkPDFInt(0));
-    array->append(int0.get());
-    SimpleCheckObjectOutput(reporter, array.get(), "[42 0.5 0]");
+    ASSERT_EMIT_EQ(reporter, *array, "[]");
+    array->appendInt(42);
+    ASSERT_EMIT_EQ(reporter, *array, "[42]");
+    array->appendScalar(SK_ScalarHalf);
+    ASSERT_EMIT_EQ(reporter, *array, "[42 0.5]");
+    array->appendInt(0);
+    ASSERT_EMIT_EQ(reporter, *array, "[42 0.5 0]");
 
     SkAutoTUnref<SkPDFDict> dict(new SkPDFDict);
-    SimpleCheckObjectOutput(reporter, dict.get(), "<<>>");
-    dict->insert("n1", int42.get());
-    SimpleCheckObjectOutput(reporter, dict.get(), "<</n1 42>>");
+    ASSERT_EMIT_EQ(reporter, *dict, "<<>>");
+    dict->insertInt("n1", 42);
+    ASSERT_EMIT_EQ(reporter, *dict, "<</n1 42>>");
     SkString n3("n3");
-    dict->insert("n2", realHalf.get());
+    dict->insertScalar("n2", SK_ScalarHalf);
     dict->insertObject(n3, array.detach());
-    SimpleCheckObjectOutput(reporter, dict.get(),
-                            "<</n1 42\n/n2 0.5\n/n3 [42 0.5 0]>>");
+    ASSERT_EMIT_EQ(reporter, *dict, "<</n1 42\n/n2 0.5\n/n3 [42 0.5 0]>>");
 
     TestPDFStream(reporter);
 
     TestCatalog(reporter);
 
     TestObjectRef(reporter);
 
     TestSubstitute(reporter);
 
     test_issue1083();
@@ skipping 47 matching lines @@
     // Filter just created; should be unvisited.
     REPORTER_ASSERT(reporter, !filter->visited());
     SkPaint paint;
     paint.setImageFilter(filter.get());
     canvas->drawRect(SkRect::MakeWH(100, 100), paint);
     doc->close();
 
     // Filter was used in rendering; should be visited.
     REPORTER_ASSERT(reporter, filter->visited());
 }