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-rw-r--r--fpdfsdk/fpdf_edit_embeddertest.cpp344
1 files changed, 342 insertions, 2 deletions
diff --git a/fpdfsdk/fpdf_edit_embeddertest.cpp b/fpdfsdk/fpdf_edit_embeddertest.cpp
index c78700ea67..f2690499d1 100644
--- a/fpdfsdk/fpdf_edit_embeddertest.cpp
+++ b/fpdfsdk/fpdf_edit_embeddertest.cpp
@@ -748,8 +748,6 @@ TEST_F(FPDFEditEmbeddertest, RemoveExistingPageObjectSplitStreamsLonely) {
CloseSavedDocument();
}
-// TODO(pdfium:1051): Extend this test to remove some elements and verify
-// saving works.
TEST_F(FPDFEditEmbeddertest, GetContentStream) {
// Load document with some text split across streams.
EXPECT_TRUE(OpenDocument("split_streams.pdf"));
@@ -776,6 +774,348 @@ TEST_F(FPDFEditEmbeddertest, GetContentStream) {
UnloadPage(page);
}
+TEST_F(FPDFEditEmbeddertest, RemoveAllFromStream) {
+ // Load document with some text split across streams.
+ EXPECT_TRUE(OpenDocument("split_streams.pdf"));
+ FPDF_PAGE page = LoadPage(0);
+ ASSERT_TRUE(page);
+
+ // Content stream 0: page objects 0-14.
+ // Content stream 1: page objects 15-17.
+ // Content stream 2: page object 18.
+ ASSERT_EQ(19, FPDFPage_CountObjects(page));
+
+ // Loop backwards because objects will being removed, which shifts the indexes
+ // after the removed position.
+ for (int i = 18; i >= 0; i--) {
+ FPDF_PAGEOBJECT page_object = FPDFPage_GetObject(page, i);
+ ASSERT_TRUE(page_object);
+ CPDF_PageObject* cpdf_page_object =
+ CPDFPageObjectFromFPDFPageObject(page_object);
+
+ // Empty content stream 1.
+ if (cpdf_page_object->GetContentStream() == 1) {
+ EXPECT_TRUE(FPDFPage_RemoveObject(page, page_object));
+ FPDFPageObj_Destroy(page_object);
+ }
+ }
+
+ // Content stream 0: page objects 0-14.
+ // Content stream 2: page object 15.
+ ASSERT_EQ(16, FPDFPage_CountObjects(page));
+ for (int i = 0; i < 16; i++) {
+ FPDF_PAGEOBJECT page_object = FPDFPage_GetObject(page, i);
+ ASSERT_TRUE(page_object);
+ CPDF_PageObject* cpdf_page_object =
+ CPDFPageObjectFromFPDFPageObject(page_object);
+ if (i < 15)
+ EXPECT_EQ(0, cpdf_page_object->GetContentStream()) << i;
+ else
+ EXPECT_EQ(2, cpdf_page_object->GetContentStream()) << i;
+ }
+
+ // Generate contents should remove the empty stream and update the page
+ // objects' contents stream indexes.
+ EXPECT_TRUE(FPDFPage_GenerateContent(page));
+
+ // Content stream 0: page objects 0-14.
+ // Content stream 1: page object 15.
+ ASSERT_EQ(16, FPDFPage_CountObjects(page));
+ for (int i = 0; i < 16; i++) {
+ FPDF_PAGEOBJECT page_object = FPDFPage_GetObject(page, i);
+ ASSERT_TRUE(page_object);
+ CPDF_PageObject* cpdf_page_object =
+ CPDFPageObjectFromFPDFPageObject(page_object);
+ if (i < 15)
+ EXPECT_EQ(0, cpdf_page_object->GetContentStream()) << i;
+ else
+ EXPECT_EQ(1, cpdf_page_object->GetContentStream()) << i;
+ }
+
+#if _FX_PLATFORM_ == _FX_PLATFORM_APPLE_
+ const char kStream1RemovedMD5[] = "d2e21fbd5a6de563f619feeeb6163331";
+#elif _FX_PLATFORM_ == _FX_PLATFORM_WINDOWS_
+ const char kStream1RemovedMD5[] = "b4140f203523e38793283a5943d8075b";
+#else
+ const char kStream1RemovedMD5[] = "e86a3efc160ede6cfcb1f59bcacf1105";
+#endif
+ {
+ ScopedFPDFBitmap page_bitmap = RenderPageWithFlags(page, nullptr, 0);
+ CompareBitmap(page_bitmap.get(), 200, 200, kStream1RemovedMD5);
+ }
+
+ // Save the file
+ EXPECT_TRUE(FPDF_SaveAsCopy(document(), this, 0));
+ UnloadPage(page);
+
+ // Re-open the file and check the page object count is still 16, and that
+ // content stream 1 was removed.
+ OpenSavedDocument();
+ FPDF_PAGE saved_page = LoadSavedPage(0);
+
+ // Content stream 0: page objects 0-14.
+ // Content stream 1: page object 15.
+ EXPECT_EQ(16, FPDFPage_CountObjects(saved_page));
+ for (int i = 0; i < 16; i++) {
+ FPDF_PAGEOBJECT page_object = FPDFPage_GetObject(saved_page, i);
+ ASSERT_TRUE(page_object);
+ CPDF_PageObject* cpdf_page_object =
+ CPDFPageObjectFromFPDFPageObject(page_object);
+ if (i < 15)
+ EXPECT_EQ(0, cpdf_page_object->GetContentStream()) << i;
+ else
+ EXPECT_EQ(1, cpdf_page_object->GetContentStream()) << i;
+ }
+
+ {
+ ScopedFPDFBitmap page_bitmap = RenderPageWithFlags(saved_page, nullptr, 0);
+ CompareBitmap(page_bitmap.get(), 200, 200, kStream1RemovedMD5);
+ }
+
+ CloseSavedPage(saved_page);
+ CloseSavedDocument();
+}
+
+TEST_F(FPDFEditEmbeddertest, RemoveAllFromSingleStream) {
+ // Load document with a single stream.
+ EXPECT_TRUE(OpenDocument("hello_world.pdf"));
+ FPDF_PAGE page = LoadPage(0);
+ ASSERT_TRUE(page);
+
+ // Content stream 0: page objects 0-1.
+ ASSERT_EQ(2, FPDFPage_CountObjects(page));
+
+ // Loop backwards because objects will being removed, which shifts the indexes
+ // after the removed position.
+ for (int i = 1; i >= 0; i--) {
+ FPDF_PAGEOBJECT page_object = FPDFPage_GetObject(page, i);
+ ASSERT_TRUE(page_object);
+ CPDF_PageObject* cpdf_page_object =
+ CPDFPageObjectFromFPDFPageObject(page_object);
+ ASSERT_EQ(0, cpdf_page_object->GetContentStream());
+ ASSERT_TRUE(FPDFPage_RemoveObject(page, page_object));
+ FPDFPageObj_Destroy(page_object);
+ }
+
+ // No more objects in the stream
+ ASSERT_EQ(0, FPDFPage_CountObjects(page));
+
+ // Generate contents should remove the empty stream and update the page
+ // objects' contents stream indexes.
+ EXPECT_TRUE(FPDFPage_GenerateContent(page));
+
+ ASSERT_EQ(0, FPDFPage_CountObjects(page));
+
+ const char kAllRemovedMD5[] = "eee4600ac08b458ac7ac2320e225674c";
+ {
+ ScopedFPDFBitmap page_bitmap = RenderPageWithFlags(page, nullptr, 0);
+ CompareBitmap(page_bitmap.get(), 200, 200, kAllRemovedMD5);
+ }
+
+ // Save the file
+ EXPECT_TRUE(FPDF_SaveAsCopy(document(), this, 0));
+ UnloadPage(page);
+
+ // Re-open the file and check the page object count is still 0.
+ OpenSavedDocument();
+ FPDF_PAGE saved_page = LoadSavedPage(0);
+
+ EXPECT_EQ(0, FPDFPage_CountObjects(saved_page));
+ {
+ ScopedFPDFBitmap page_bitmap = RenderPageWithFlags(saved_page, nullptr, 0);
+ CompareBitmap(page_bitmap.get(), 200, 200, kAllRemovedMD5);
+ }
+
+ CloseSavedPage(saved_page);
+ CloseSavedDocument();
+}
+
+TEST_F(FPDFEditEmbeddertest, RemoveFirstFromSingleStream) {
+ // Load document with a single stream.
+ EXPECT_TRUE(OpenDocument("hello_world.pdf"));
+ FPDF_PAGE page = LoadPage(0);
+ ASSERT_TRUE(page);
+
+ // Content stream 0: page objects 0-1.
+ ASSERT_EQ(2, FPDFPage_CountObjects(page));
+
+ // Remove first object.
+ FPDF_PAGEOBJECT page_object = FPDFPage_GetObject(page, 0);
+ ASSERT_TRUE(page_object);
+ CPDF_PageObject* cpdf_page_object =
+ CPDFPageObjectFromFPDFPageObject(page_object);
+ ASSERT_EQ(0, cpdf_page_object->GetContentStream());
+ ASSERT_TRUE(FPDFPage_RemoveObject(page, page_object));
+ FPDFPageObj_Destroy(page_object);
+
+ // One object left in the stream.
+ ASSERT_EQ(1, FPDFPage_CountObjects(page));
+ page_object = FPDFPage_GetObject(page, 0);
+ ASSERT_TRUE(page_object);
+ cpdf_page_object = CPDFPageObjectFromFPDFPageObject(page_object);
+ ASSERT_EQ(0, cpdf_page_object->GetContentStream());
+
+ EXPECT_TRUE(FPDFPage_GenerateContent(page));
+
+ // Still one object left in the stream.
+ ASSERT_EQ(1, FPDFPage_CountObjects(page));
+ page_object = FPDFPage_GetObject(page, 0);
+ ASSERT_TRUE(page_object);
+ cpdf_page_object = CPDFPageObjectFromFPDFPageObject(page_object);
+ ASSERT_EQ(0, cpdf_page_object->GetContentStream());
+
+#if _FX_PLATFORM_ == _FX_PLATFORM_APPLE_
+ const char kFirstRemovedMD5[] = "af760c4702467cb1492a57fb8215efaa";
+#elif _FX_PLATFORM_ == _FX_PLATFORM_WINDOWS_
+ const char kFirstRemovedMD5[] = "72be917349bf7004a5c39661fe1fc433";
+#else
+ const char kFirstRemovedMD5[] = "b76df015fe88009c3c342395df96abf1";
+#endif
+ {
+ ScopedFPDFBitmap page_bitmap = RenderPageWithFlags(page, nullptr, 0);
+ CompareBitmap(page_bitmap.get(), 200, 200, kFirstRemovedMD5);
+ }
+
+ // Save the file
+ EXPECT_TRUE(FPDF_SaveAsCopy(document(), this, 0));
+ UnloadPage(page);
+
+ // Re-open the file and check the page object count is still 0.
+ OpenSavedDocument();
+ FPDF_PAGE saved_page = LoadSavedPage(0);
+
+ ASSERT_EQ(1, FPDFPage_CountObjects(saved_page));
+ page_object = FPDFPage_GetObject(saved_page, 0);
+ ASSERT_TRUE(page_object);
+ cpdf_page_object = CPDFPageObjectFromFPDFPageObject(page_object);
+ ASSERT_EQ(0, cpdf_page_object->GetContentStream());
+ {
+ ScopedFPDFBitmap page_bitmap = RenderPageWithFlags(saved_page, nullptr, 0);
+ CompareBitmap(page_bitmap.get(), 200, 200, kFirstRemovedMD5);
+ }
+
+ CloseSavedPage(saved_page);
+ CloseSavedDocument();
+}
+
+TEST_F(FPDFEditEmbeddertest, RemoveLastFromSingleStream) {
+ // Load document with a single stream.
+ EXPECT_TRUE(OpenDocument("hello_world.pdf"));
+ FPDF_PAGE page = LoadPage(0);
+ ASSERT_TRUE(page);
+
+ // Content stream 0: page objects 0-1.
+ ASSERT_EQ(2, FPDFPage_CountObjects(page));
+
+ // Remove last object
+ FPDF_PAGEOBJECT page_object = FPDFPage_GetObject(page, 1);
+ ASSERT_TRUE(page_object);
+ CPDF_PageObject* cpdf_page_object =
+ CPDFPageObjectFromFPDFPageObject(page_object);
+ ASSERT_EQ(0, cpdf_page_object->GetContentStream());
+ ASSERT_TRUE(FPDFPage_RemoveObject(page, page_object));
+ FPDFPageObj_Destroy(page_object);
+
+ // One object left in the stream.
+ ASSERT_EQ(1, FPDFPage_CountObjects(page));
+ page_object = FPDFPage_GetObject(page, 0);
+ ASSERT_TRUE(page_object);
+ cpdf_page_object = CPDFPageObjectFromFPDFPageObject(page_object);
+ ASSERT_EQ(0, cpdf_page_object->GetContentStream());
+
+ EXPECT_TRUE(FPDFPage_GenerateContent(page));
+
+ // Still one object left in the stream.
+ ASSERT_EQ(1, FPDFPage_CountObjects(page));
+ page_object = FPDFPage_GetObject(page, 0);
+ ASSERT_TRUE(page_object);
+ cpdf_page_object = CPDFPageObjectFromFPDFPageObject(page_object);
+ ASSERT_EQ(0, cpdf_page_object->GetContentStream());
+
+#if _FX_PLATFORM_ == _FX_PLATFORM_APPLE_
+ const char kLastRemovedMD5[] = "f8fbd14a048b9e2ea8e5f059f22a910e";
+#else
+ const char kLastRemovedMD5[] = "93dcc09055f87a2792c8e3065af99a1b";
+#endif
+ {
+ ScopedFPDFBitmap page_bitmap = RenderPageWithFlags(page, nullptr, 0);
+ CompareBitmap(page_bitmap.get(), 200, 200, kLastRemovedMD5);
+ }
+
+ // Save the file
+ EXPECT_TRUE(FPDF_SaveAsCopy(document(), this, 0));
+ UnloadPage(page);
+
+ // Re-open the file and check the page object count is still 0.
+ OpenSavedDocument();
+ FPDF_PAGE saved_page = LoadSavedPage(0);
+
+ ASSERT_EQ(1, FPDFPage_CountObjects(saved_page));
+ page_object = FPDFPage_GetObject(saved_page, 0);
+ ASSERT_TRUE(page_object);
+ cpdf_page_object = CPDFPageObjectFromFPDFPageObject(page_object);
+ ASSERT_EQ(0, cpdf_page_object->GetContentStream());
+ {
+ ScopedFPDFBitmap page_bitmap = RenderPageWithFlags(saved_page, nullptr, 0);
+ CompareBitmap(page_bitmap.get(), 200, 200, kLastRemovedMD5);
+ }
+
+ CloseSavedPage(saved_page);
+ CloseSavedDocument();
+}
+
+TEST_F(FPDFEditEmbeddertest, RemoveAllFromMultipleStreams) {
+ // Load document with some text.
+ EXPECT_TRUE(OpenDocument("hello_world_split_streams.pdf"));
+ FPDF_PAGE page = LoadPage(0);
+ ASSERT_TRUE(page);
+
+ // Content stream 0: page objects 0-1.
+ // Content stream 1: page object 2.
+ ASSERT_EQ(3, FPDFPage_CountObjects(page));
+
+ // Loop backwards because objects will being removed, which shifts the indexes
+ // after the removed position.
+ for (int i = 2; i >= 0; i--) {
+ FPDF_PAGEOBJECT page_object = FPDFPage_GetObject(page, i);
+ ASSERT_TRUE(page_object);
+ ASSERT_TRUE(FPDFPage_RemoveObject(page, page_object));
+ FPDFPageObj_Destroy(page_object);
+ }
+
+ // No more objects in the page.
+ ASSERT_EQ(0, FPDFPage_CountObjects(page));
+
+ // Generate contents should remove the empty streams and update the page
+ // objects' contents stream indexes.
+ EXPECT_TRUE(FPDFPage_GenerateContent(page));
+
+ ASSERT_EQ(0, FPDFPage_CountObjects(page));
+
+ const char kAllRemovedMD5[] = "eee4600ac08b458ac7ac2320e225674c";
+ {
+ ScopedFPDFBitmap page_bitmap = RenderPageWithFlags(page, nullptr, 0);
+ CompareBitmap(page_bitmap.get(), 200, 200, kAllRemovedMD5);
+ }
+
+ // Save the file
+ EXPECT_TRUE(FPDF_SaveAsCopy(document(), this, 0));
+ UnloadPage(page);
+
+ // Re-open the file and check the page object count is still 0.
+ OpenSavedDocument();
+ FPDF_PAGE saved_page = LoadSavedPage(0);
+
+ EXPECT_EQ(0, FPDFPage_CountObjects(saved_page));
+ {
+ ScopedFPDFBitmap page_bitmap = RenderPageWithFlags(saved_page, nullptr, 0);
+ CompareBitmap(page_bitmap.get(), 200, 200, kAllRemovedMD5);
+ }
+
+ CloseSavedPage(saved_page);
+ CloseSavedDocument();
+}
+
TEST_F(FPDFEditEmbeddertest, InsertPageObjectAndSave) {
// Load document with some text.
EXPECT_TRUE(OpenDocument("hello_world.pdf"));
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