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
|
// Copyright Joakim Karlsson & Kim Gräsman 2010-2012.
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
#ifndef IGLOO_ASSERT_H
#define IGLOO_ASSERT_H
#include "stringize.h"
#include "stringizers.h"
namespace snowhouse {
struct DefaultFailureHandler
{
template <class ExpectedType, class ActualType>
static void Handle(const ExpectedType& expected, const ActualType& actual, const char* file_name, int line_number)
{
std::ostringstream str;
str << "Expected: " << snowhouse::Stringize(expected) << std::endl;
str << "Actual: " << snowhouse::Stringize(actual) << std::endl;
throw AssertionException(str.str(), file_name, line_number);
}
static void Handle(const std::string& message)
{
throw AssertionException(message);
}
};
template<typename FailureHandler>
class ConfigurableAssert
{
public:
template <typename ActualType, typename ConstraintListType>
static void That(const ActualType& actual, ExpressionBuilder<ConstraintListType> expression)
{
const char* no_file = "";
int line_number = 0;
ConfigurableAssert<FailureHandler>::That(actual, expression, no_file, line_number);
}
template <typename ActualType, typename ConstraintListType>
static void That(const ActualType& actual, ExpressionBuilder<ConstraintListType> expression, const char* file_name, int line_number)
{
try
{
ResultStack result;
OperatorStack operators;
expression.Evaluate(result, operators, actual);
while (!operators.empty())
{
ConstraintOperator* op = operators.top();
op->PerformOperation(result);
operators.pop();
}
if (result.empty())
{
throw InvalidExpressionException("The expression did not yield any result");
}
if (!result.top())
{
FailureHandler::Handle(expression, actual, file_name, line_number);
}
}
catch (const InvalidExpressionException& e)
{
FailureHandler::Handle("Malformed expression: \"" + snowhouse::Stringize(expression) + "\"\n" + e.Message());
}
}
template <typename ConstraintListType>
static void That(const char* actual, ExpressionBuilder<ConstraintListType> expression)
{
return That(std::string(actual), expression);
}
template <typename ActualType, typename ExpressionType>
static void That(const ActualType& actual, const ExpressionType& expression)
{
const char* no_file = "";
int no_line = 0;
That(actual, expression, no_file, no_line);
}
template <typename ActualType, typename ExpressionType>
static void That(const ActualType& actual, const ExpressionType& expression, const char* file_name, int line_number)
{
if (!expression(actual))
{
FailureHandler::Handle(expression, actual, file_name, line_number);
}
}
template <typename ExpressionType>
static void That(const char* actual, const ExpressionType& expression)
{
return That(std::string(actual), expression);
}
static void That(bool actual)
{
if (!actual)
{
FailureHandler::Handle("Expected: true\nActual: false");
}
}
static void Failure(const std::string& message)
{
FailureHandler::Handle(message);
}
};
typedef ConfigurableAssert<DefaultFailureHandler> Assert;
}
#endif // IGLOO_ASSERT_H
|
