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page_setup_unittest.cc
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page_setup_unittest.cc
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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/page_setup.h"
#include <stdlib.h>
#include <time.h>
#include "testing/gtest/include/gtest/gtest.h"
TEST(PageSetupTest, Random) {
time_t seed = time(NULL);
int kMax = 10;
srand(static_cast<unsigned>(seed));
// Margins.
printing::PageMargins margins;
margins.header = rand() % kMax;
margins.footer = rand() % kMax;
margins.left = rand() % kMax;
margins.top = rand() % kMax;
margins.right = rand() % kMax;
margins.bottom = rand() % kMax;
int kTextHeight = rand() % kMax;
// Page description.
gfx::Size page_size(100 + rand() % kMax, 200 + rand() % kMax);
gfx::Rect printable_area(rand() % kMax, rand() % kMax, 0, 0);
printable_area.set_width(page_size.width() - (rand() % kMax) -
printable_area.x());
printable_area.set_height(page_size.height() - (rand() % kMax) -
printable_area.y());
// Make the calculations.
printing::PageSetup setup;
setup.SetRequestedMargins(margins);
setup.Init(page_size, printable_area, kTextHeight);
// Calculate the effective margins.
printing::PageMargins effective_margins;
effective_margins.header = std::max(margins.header, printable_area.y());
effective_margins.left = std::max(margins.left, printable_area.x());
effective_margins.top = std::max(margins.top,
effective_margins.header + kTextHeight);
effective_margins.footer = std::max(margins.footer,
page_size.height() -
printable_area.bottom());
effective_margins.right = std::max(margins.right,
page_size.width() -
printable_area.right());
effective_margins.bottom = std::max(margins.bottom,
effective_margins.footer + kTextHeight);
// Calculate the overlay area.
gfx::Rect overlay_area(effective_margins.left, effective_margins.header,
page_size.width() - effective_margins.right -
effective_margins.left,
page_size.height() - effective_margins.footer -
effective_margins.header);
// Calculate the content area.
gfx::Rect content_area(overlay_area.x(),
effective_margins.top,
overlay_area.width(),
page_size.height() - effective_margins.bottom -
effective_margins.top);
// Test values.
EXPECT_EQ(page_size, setup.physical_size()) << seed << " " <<
page_size.ToString() << " " << printable_area.ToString() <<
" " << kTextHeight;
EXPECT_EQ(overlay_area, setup.overlay_area()) << seed << " " <<
page_size.ToString() << " " << printable_area.ToString() <<
" " << kTextHeight;
EXPECT_EQ(content_area, setup.content_area()) << seed << " " <<
page_size.ToString() << " " << printable_area.ToString() <<
" " << kTextHeight;
EXPECT_EQ(effective_margins.header, setup.effective_margins().header) <<
seed << " " << page_size.ToString() << " " << printable_area.ToString() <<
" " << kTextHeight;
EXPECT_EQ(effective_margins.footer, setup.effective_margins().footer) <<
seed << " " << page_size.ToString() << " " << printable_area.ToString() <<
" " << kTextHeight;
EXPECT_EQ(effective_margins.left, setup.effective_margins().left) << seed <<
" " << page_size.ToString() << " " << printable_area.ToString() <<
" " << kTextHeight;
EXPECT_EQ(effective_margins.top, setup.effective_margins().top) << seed <<
" " << page_size.ToString() << " " << printable_area.ToString() <<
" " << kTextHeight;
EXPECT_EQ(effective_margins.right, setup.effective_margins().right) << seed <<
" " << page_size.ToString() << " " << printable_area.ToString() <<
" " << kTextHeight;
EXPECT_EQ(effective_margins.bottom, setup.effective_margins().bottom) <<
seed << " " << page_size.ToString() << " " << printable_area.ToString() <<
" " << kTextHeight;
}
TEST(PageSetupTest, HardCoded) {
// Margins.
printing::PageMargins margins;
margins.header = 2;
margins.footer = 2;
margins.left = 4;
margins.top = 4;
margins.right = 4;
margins.bottom = 4;
int kTextHeight = 3;
// Page description.
gfx::Size page_size(100, 100);
gfx::Rect printable_area(3, 3, 94, 94);
// Make the calculations.
printing::PageSetup setup;
setup.SetRequestedMargins(margins);
setup.Init(page_size, printable_area, kTextHeight);
// Calculate the effective margins.
printing::PageMargins effective_margins;
effective_margins.header = 3;
effective_margins.left = 4;
effective_margins.top = 6;
effective_margins.footer = 3;
effective_margins.right = 4;
effective_margins.bottom = 6;
// Calculate the overlay area.
gfx::Rect overlay_area(4, 3, 92, 94);
// Calculate the content area.
gfx::Rect content_area(4, 6, 92, 88);
// Test values.
EXPECT_EQ(page_size, setup.physical_size()) << " " << page_size.ToString() <<
" " << printable_area.ToString() << " " << kTextHeight;
EXPECT_EQ(overlay_area, setup.overlay_area()) << " " <<
page_size.ToString() << " " << printable_area.ToString() <<
" " << kTextHeight;
EXPECT_EQ(content_area, setup.content_area()) << " " <<
page_size.ToString() << " " << printable_area.ToString() <<
" " << kTextHeight;
EXPECT_EQ(effective_margins.header, setup.effective_margins().header) <<
" " << page_size.ToString() << " " <<
printable_area.ToString() << " " << kTextHeight;
EXPECT_EQ(effective_margins.footer, setup.effective_margins().footer) <<
" " << page_size.ToString() << " " << printable_area.ToString() <<
" " << kTextHeight;
EXPECT_EQ(effective_margins.left, setup.effective_margins().left) <<
" " << page_size.ToString() << " " << printable_area.ToString() <<
" " << kTextHeight;
EXPECT_EQ(effective_margins.top, setup.effective_margins().top) <<
" " << page_size.ToString() << " " << printable_area.ToString() <<
" " << kTextHeight;
EXPECT_EQ(effective_margins.right, setup.effective_margins().right) <<
" " << page_size.ToString() << " " << printable_area.ToString() <<
" " << kTextHeight;
EXPECT_EQ(effective_margins.bottom, setup.effective_margins().bottom) <<
" " << page_size.ToString() << " " << printable_area.ToString() <<
" " << kTextHeight;
}