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
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
|
// Copyright 2007, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Author: wan@google.com (Zhanyong Wan)
// Google Mock - a framework for writing C++ mock classes.
//
// This file implements cardinalities.
#include "gmock/gmock-cardinalities.h"
#include <limits.h>
#include <ostream> // NOLINT
#include <sstream>
#include <string>
#include "gmock/internal/gmock-internal-utils.h"
#include "gtest/gtest.h"
namespace testing {
namespace {
// Implements the Between(m, n) cardinality.
class BetweenCardinalityImpl : public CardinalityInterface {
public:
BetweenCardinalityImpl(int min, int max)
: min_(min >= 0 ? min : 0),
max_(max >= min_ ? max : min_) {
std::stringstream ss;
if (min < 0) {
ss << "The invocation lower bound must be >= 0, "
<< "but is actually " << min << ".";
internal::Expect(false, __FILE__, __LINE__, ss.str());
} else if (max < 0) {
ss << "The invocation upper bound must be >= 0, "
<< "but is actually " << max << ".";
internal::Expect(false, __FILE__, __LINE__, ss.str());
} else if (min > max) {
ss << "The invocation upper bound (" << max
<< ") must be >= the invocation lower bound (" << min
<< ").";
internal::Expect(false, __FILE__, __LINE__, ss.str());
}
}
// Conservative estimate on the lower/upper bound of the number of
// calls allowed.
virtual int ConservativeLowerBound() const { return min_; }
virtual int ConservativeUpperBound() const { return max_; }
virtual bool IsSatisfiedByCallCount(int call_count) const {
return min_ <= call_count && call_count <= max_ ;
}
virtual bool IsSaturatedByCallCount(int call_count) const {
return call_count >= max_;
}
virtual void DescribeTo(::std::ostream* os) const;
private:
const int min_;
const int max_;
GTEST_DISALLOW_COPY_AND_ASSIGN_(BetweenCardinalityImpl);
};
// Formats "n times" in a human-friendly way.
inline internal::string FormatTimes(int n) {
if (n == 1) {
return "once";
} else if (n == 2) {
return "twice";
} else {
std::stringstream ss;
ss << n << " times";
return ss.str();
}
}
// Describes the Between(m, n) cardinality in human-friendly text.
void BetweenCardinalityImpl::DescribeTo(::std::ostream* os) const {
if (min_ == 0) {
if (max_ == 0) {
*os << "never called";
} else if (max_ == INT_MAX) {
*os << "called any number of times";
} else {
*os << "called at most " << FormatTimes(max_);
}
} else if (min_ == max_) {
*os << "called " << FormatTimes(min_);
} else if (max_ == INT_MAX) {
*os << "called at least " << FormatTimes(min_);
} else {
// 0 < min_ < max_ < INT_MAX
*os << "called between " << min_ << " and " << max_ << " times";
}
}
} // Unnamed namespace
// Describes the given call count to an ostream.
void Cardinality::DescribeActualCallCountTo(int actual_call_count,
::std::ostream* os) {
if (actual_call_count > 0) {
*os << "called " << FormatTimes(actual_call_count);
} else {
*os << "never called";
}
}
// Creates a cardinality that allows at least n calls.
Cardinality AtLeast(int n) { return Between(n, INT_MAX); }
// Creates a cardinality that allows at most n calls.
Cardinality AtMost(int n) { return Between(0, n); }
// Creates a cardinality that allows any number of calls.
Cardinality AnyNumber() { return AtLeast(0); }
// Creates a cardinality that allows between min and max calls.
Cardinality Between(int min, int max) {
return Cardinality(new BetweenCardinalityImpl(min, max));
}
// Creates a cardinality that allows exactly n calls.
Cardinality Exactly(int n) { return Between(n, n); }
} // namespace testing
|
