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// Copyright (c) 2011 The Chromium 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 "printing/pdf_metafile_cairo_linux.h"
#include <fcntl.h>
#include <string>
#include <vector>
#include "base/file_descriptor_posix.h"
#include "base/file_path.h"
#include "base/file_util.h"
#include "base/string_util.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "ui/gfx/rect.h"
#include "ui/gfx/size.h"
typedef struct _cairo cairo_t;
namespace {
class PdfMetafileCairoTest : public testing::Test {};
} // namespace
namespace printing {
TEST_F(PdfMetafileCairoTest, Pdf) {
// Tests in-renderer constructor.
printing::PdfMetafileCairo pdf;
EXPECT_TRUE(pdf.Init());
// Renders page 1.
EXPECT_TRUE(pdf.StartPage(gfx::Size(72, 73), gfx::Rect(4, 5, 64, 63), 1));
// In theory, we should use Cairo to draw something on |context|.
EXPECT_TRUE(pdf.FinishPage());
// Renders page 2.
EXPECT_TRUE(pdf.StartPage(gfx::Size(72, 73), gfx::Rect(4, 5, 64, 63), 1));
// In theory, we should use Cairo to draw something on |context|.
EXPECT_TRUE(pdf.FinishPage());
// Closes the file.
pdf.FinishDocument();
// Checks data size.
uint32 size = pdf.GetDataSize();
EXPECT_GT(size, 0u);
// Gets resulting data.
std::vector<char> buffer(size, 0x00);
pdf.GetData(&buffer.front(), size);
// Tests another constructor.
printing::PdfMetafileCairo pdf2;
EXPECT_TRUE(pdf2.InitFromData(&buffer.front(), size));
// Tries to get the first 4 characters from pdf2.
std::vector<char> buffer2(4, 0x00);
pdf2.GetData(&buffer2.front(), 4);
// Tests if the header begins with "%PDF".
std::string header(&buffer2.front(), 4);
EXPECT_EQ(header.find("%PDF", 0), 0u);
// Tests if we can save data.
EXPECT_TRUE(pdf.SaveTo(FilePath("/dev/null")));
// Test overriding the metafile with raw data.
printing::PdfMetafileCairo pdf3;
EXPECT_TRUE(pdf3.Init());
EXPECT_TRUE(pdf3.StartPage(gfx::Size(72, 73), gfx::Rect(4, 5, 64, 63), 1));
std::string test_raw_data = "Dummy PDF";
EXPECT_TRUE(pdf3.InitFromData(test_raw_data.c_str(), test_raw_data.size()));
EXPECT_TRUE(pdf3.FinishPage());
pdf3.FinishDocument();
size = pdf3.GetDataSize();
EXPECT_EQ(test_raw_data.size(), size);
std::string output;
pdf3.GetData(WriteInto(&output, size + 1), size);
EXPECT_EQ(test_raw_data, output);
}
} // namespace printing
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