1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
// Copyright (c) 2013-2014 Sandstorm Development Group, Inc. and contributors
// Licensed under the MIT License:
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
#include "units.h"
#include <kj/compat/gtest.h>
#include <iostream>
namespace kj {
namespace {
class Bytes;
class KiB;
class MiB;
typedef Quantity<int, Bytes> ByteCount;
typedef Quantity<int, KiB> KiBCount;
typedef Quantity<int, MiB> MiBCount;
constexpr ByteCount BYTE = unit<ByteCount>();
constexpr KiBCount KIB = unit<KiBCount>();
constexpr MiBCount MIB = unit<MiBCount>();
constexpr UnitRatio<int, Bytes, KiB> BYTES_PER_KIB = 1024 * BYTE / KIB;
constexpr UnitRatio<int, Bytes, MiB> BYTES_PER_MIB = 1024 * 1024 * BYTE / MIB;
constexpr auto KIB_PER_MIB = 1024 * KIB / MIB;
template <typename T, typename U>
kj::String KJ_STRINGIFY(Quantity<T, U> value) {
return kj::str(value / unit<Quantity<T, U>>());
}
TEST(UnitMeasure, Basics) {
KiBCount k = 15 * KIB;
EXPECT_EQ(15, k / KIB);
EXPECT_EQ(16 * KIB, k + KIB);
k += KIB;
k *= 2048;
EXPECT_EQ(32 * MIB, k / KIB_PER_MIB);
EXPECT_TRUE(2 * KIB < 4 * KIB);
EXPECT_FALSE(8 * KIB < 4 * KIB);
}
} // namespace
} // namespace kj