1// Copyright (c) 2011 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#include "printing/units.h"
6#include "testing/gtest/include/gtest/gtest.h"
7#include "testing/gtest/include/gtest/gtest-spi.h"
8
9namespace printing {
10
11TEST(UnitsTest, Convertions) {
12  EXPECT_EQ(100, ConvertUnit(100, 100, 100));
13  EXPECT_EQ(-100, ConvertUnit(-100, 100, 100));
14  EXPECT_EQ(0, ConvertUnit(0, 100, 100));
15  EXPECT_EQ(99, ConvertUnit(99, 100, 100));
16  EXPECT_EQ(101, ConvertUnit(101, 100, 100));
17  EXPECT_EQ(99900, ConvertUnit(999, 10, 1000));
18  EXPECT_EQ(100100, ConvertUnit(1001, 10, 1000));
19
20  // Rounding.
21  EXPECT_EQ(10, ConvertUnit(999, 1000, 10));
22  EXPECT_EQ(10, ConvertUnit(950, 1000, 10));
23  EXPECT_EQ(9, ConvertUnit(949, 1000, 10));
24  EXPECT_EQ(10, ConvertUnit(1001, 1000, 10));
25  EXPECT_EQ(10, ConvertUnit(1049, 1000, 10));
26  EXPECT_EQ(11, ConvertUnit(1050, 1000, 10));
27  EXPECT_EQ(-10, ConvertUnit(-999, 1000, 10));
28  EXPECT_EQ(-10, ConvertUnit(-950, 1000, 10));
29  EXPECT_EQ(-9, ConvertUnit(-949, 1000, 10));
30  EXPECT_EQ(-10, ConvertUnit(-1001, 1000, 10));
31  EXPECT_EQ(-10, ConvertUnit(-1049, 1000, 10));
32  EXPECT_EQ(-11, ConvertUnit(-1050, 1000, 10));
33
34  EXPECT_EQ(0, ConvertUnit(2, 1000000000, 1));
35  EXPECT_EQ(2000000000, ConvertUnit(2, 1, 1000000000));
36  EXPECT_EQ(4000000000U,
37            static_cast<unsigned int>(ConvertUnit(2, 1, 2000000000)));
38
39  EXPECT_EQ(100, ConvertUnitDouble(100, 100, 100));
40  EXPECT_EQ(-100, ConvertUnitDouble(-100, 100, 100));
41  EXPECT_EQ(0, ConvertUnitDouble(0, 100, 100));
42  EXPECT_DOUBLE_EQ(0.000002, ConvertUnitDouble(2, 1000, 0.001));
43  EXPECT_EQ(2000000, ConvertUnitDouble(2, 0.001, 1000));
44
45  EXPECT_EQ(kHundrethsMMPerInch, ConvertMilliInchToHundredThousanthMeter(1000));
46  EXPECT_EQ(-kHundrethsMMPerInch,
47            ConvertMilliInchToHundredThousanthMeter(-1000));
48  EXPECT_EQ(0, ConvertMilliInchToHundredThousanthMeter(0));
49  EXPECT_EQ(1000, ConvertHundredThousanthMeterToMilliInch(kHundrethsMMPerInch));
50  EXPECT_EQ(-1000,
51            ConvertHundredThousanthMeterToMilliInch(-kHundrethsMMPerInch));
52  EXPECT_EQ(0, ConvertHundredThousanthMeterToMilliInch(0));
53
54  EXPECT_EQ(8.25, ConvertPixelsToPointDouble(11.0));
55  // Round down.
56  EXPECT_EQ(8, ConvertPixelsToPoint(11));
57  EXPECT_EQ(7.5, ConvertPixelsToPointDouble(10.0));
58  // Round up.
59  EXPECT_EQ(8, ConvertPixelsToPoint(10));
60  EXPECT_EQ(0, ConvertPixelsToPoint(0));
61}
62
63}  // namespace printing
64