// Copyright 2016 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "public/fpdf_flatten.h"
#include "public/fpdfview.h"
#include "testing/embedder_test.h"
#include "testing/gtest/include/gtest/gtest.h"

namespace {

class FPDFFlattenEmbedderTest : public EmbedderTest {};

}  // namespace

TEST_F(FPDFFlattenEmbedderTest, FlatNothing) {
  EXPECT_TRUE(OpenDocument("hello_world.pdf"));
  FPDF_PAGE page = LoadPage(0);
  EXPECT_TRUE(page);
  EXPECT_EQ(FLATTEN_NOTHINGTODO, FPDFPage_Flatten(page, FLAT_NORMALDISPLAY));
  UnloadPage(page);
}

TEST_F(FPDFFlattenEmbedderTest, FlatNormal) {
  EXPECT_TRUE(OpenDocument("annotiter.pdf"));
  FPDF_PAGE page = LoadPage(0);
  EXPECT_TRUE(page);
  EXPECT_EQ(FLATTEN_SUCCESS, FPDFPage_Flatten(page, FLAT_NORMALDISPLAY));
  UnloadPage(page);
}

TEST_F(FPDFFlattenEmbedderTest, FlatPrint) {
  EXPECT_TRUE(OpenDocument("annotiter.pdf"));
  FPDF_PAGE page = LoadPage(0);
  EXPECT_TRUE(page);
  EXPECT_EQ(FLATTEN_SUCCESS, FPDFPage_Flatten(page, FLAT_PRINT));
  UnloadPage(page);
}

TEST_F(FPDFFlattenEmbedderTest, BUG_890322) {
  static const char md5_hash[] = "6c674642154408e877d88c6c082d67e9";
  EXPECT_TRUE(OpenDocument("bug_890322.pdf"));
  FPDF_PAGE page = LoadPage(0);
  ASSERT_TRUE(page);

  ScopedFPDFBitmap bitmap = RenderLoadedPageWithFlags(page, FPDF_ANNOT);
  CompareBitmap(bitmap.get(), 200, 200, md5_hash);

  EXPECT_EQ(FLATTEN_SUCCESS, FPDFPage_Flatten(page, FLAT_PRINT));
  EXPECT_TRUE(FPDF_SaveAsCopy(document(), this, 0));

  UnloadPage(page);

  VerifySavedDocument(200, 200, md5_hash);
}

TEST_F(FPDFFlattenEmbedderTest, BUG_896366) {
  static const char md5_hash[] = "f71ab085c52c8445ae785eca3ec858b1";
  EXPECT_TRUE(OpenDocument("bug_896366.pdf"));
  FPDF_PAGE page = LoadPage(0);
  ASSERT_TRUE(page);

  ScopedFPDFBitmap bitmap = RenderLoadedPageWithFlags(page, FPDF_ANNOT);
  CompareBitmap(bitmap.get(), 612, 792, md5_hash);

  EXPECT_EQ(FLATTEN_SUCCESS, FPDFPage_Flatten(page, FLAT_PRINT));
  EXPECT_TRUE(FPDF_SaveAsCopy(document(), this, 0));

  UnloadPage(page);

  VerifySavedDocument(612, 792, md5_hash);
}