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
|
#define BOOST_TEST_MODULE LazyPointer
#include <boost/test/unit_test.hpp>
#include "lazyPointer.h"
#include <memory>
#include <string>
using namespace AdHoc;
class Test {
public:
explicit Test(int v) : val(v) { }
const int val;
};
using TestLazyPointer = LazyPointer<Test>;
using RawLazyPointer = LazyPointer<int, int *>;
/// LCOV_EXCL_START (diagnostics)
// cppcheck-suppress unknownMacro
BOOST_TEST_DONT_PRINT_LOG_VALUE(TestLazyPointer)
// cppcheck-suppress unknownMacro
BOOST_TEST_DONT_PRINT_LOG_VALUE(RawLazyPointer)
/// LCOV_EXCL_STOP
static TestLazyPointer::pointer_type
factory()
{
return std::make_shared<Test>(3);
}
static TestLazyPointer::pointer_type
paramFactory(const std::string & str)
{
return std::make_shared<Test>(str.length());
}
BOOST_AUTO_TEST_CASE(islazy)
{
TestLazyPointer p([] {
return factory();
});
BOOST_REQUIRE_EQUAL(false, p.hasValue());
Test * t = p.get();
BOOST_REQUIRE(t);
BOOST_REQUIRE(p);
BOOST_REQUIRE_EQUAL(true, p.hasValue());
BOOST_REQUIRE_EQUAL(p, t);
BOOST_REQUIRE_EQUAL(3, t->val);
BOOST_REQUIRE_EQUAL(3, p->val);
}
BOOST_AUTO_TEST_CASE(preinit)
{
Test * t = new Test(4);
TestLazyPointer p(TestLazyPointer::pointer_type {t});
BOOST_REQUIRE_EQUAL(true, p.hasValue());
BOOST_REQUIRE_EQUAL(p, t);
BOOST_REQUIRE_EQUAL(4, p->val);
}
BOOST_AUTO_TEST_CASE(reset)
{
Test * t = new Test(4);
TestLazyPointer p(TestLazyPointer::pointer_type {t});
BOOST_REQUIRE_EQUAL(true, p.hasValue());
BOOST_REQUIRE_EQUAL(4, p->val);
p = nullptr;
BOOST_REQUIRE_EQUAL(true, p.hasValue());
BOOST_REQUIRE_EQUAL(true, !p);
p = [] {
return factory();
};
BOOST_REQUIRE_EQUAL(false, p.hasValue());
BOOST_REQUIRE(p.get());
BOOST_REQUIRE_EQUAL(true, p.hasValue());
BOOST_REQUIRE_EQUAL(3, p->val);
}
BOOST_AUTO_TEST_CASE(nondefault)
{
TestLazyPointer p([] {
return paramFactory("some string");
});
BOOST_REQUIRE_EQUAL(false, p.hasValue());
BOOST_REQUIRE_EQUAL(11, (*p).val);
BOOST_REQUIRE_EQUAL(true, p.hasValue());
}
BOOST_AUTO_TEST_CASE(rawPointerNull)
{
RawLazyPointer null;
BOOST_REQUIRE(null.hasValue());
BOOST_REQUIRE(!null);
BOOST_REQUIRE(!null.get());
}
BOOST_AUTO_TEST_CASE(rawPointerNonNull)
{
RawLazyPointer value(new int(3));
BOOST_REQUIRE(value.hasValue());
BOOST_REQUIRE(value);
BOOST_REQUIRE(value.get());
BOOST_REQUIRE_EQUAL(*value, 3);
int * x = value.operator int *();
BOOST_REQUIRE_EQUAL(*x, 3);
delete x;
}
int *
rawFactory(const std::string & s)
{
return new int(static_cast<int>(s.length()));
}
BOOST_AUTO_TEST_CASE(rawPointerFactory)
{
RawLazyPointer value([] {
return rawFactory(std::string("four"));
});
BOOST_REQUIRE(!value.hasValue());
BOOST_REQUIRE_EQUAL(*value, 4);
BOOST_REQUIRE(value.hasValue());
delete value.operator int *();
}
|
