GCC Code Coverage Report

Directory: ./
File: TestPointerMap.cpp
Date: 2026-03-21 20:51:59
Exec Total Coverage
Lines: 60 60 100.0%
Functions: 16 16 100.0%
Branches: 90 220 40.9%
Line Branch Exec Source
1 #include "PointerMap.hpp"
2 #include "Verbose.hpp"
3 #include "compat/gsl14.hpp"
4 #include <gmock/gmock.h>
5
6 using namespace testing;
7 using namespace testing::internal;
8
9 // Anonymous namespace for definitions that are local to this file.
10 namespace {
11 // Print the elements of a PointerMap.
12 5 void print([[maybe_unused]] const RawPointerMap<std::string, Verbose<>>& container) {
13
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 33 for (const auto& elem : container) {
14 14 std::cout << gsl::czstring{__func__} << ": key=" << elem.first
15
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 14 << " value=" << elem.second << std::endl;
16 14 const auto& name = elem.second.name();
17
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 14 EXPECT_THAT(name, Not(HasSubstr("copy")));
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 14 EXPECT_THAT(name, Not(HasSubstr("move")));
19 5 }
20 5 }
21
22 #if __cplusplus >= 202002L // since C++20
23
24 using std::erase_if;
25
26 #else // until C++20
27
28 template <typename M, typename Predicate>
29 typename M::size_type erase_if(M& m, Predicate p) {
30 auto size = m.size();
31 for (auto i = m.begin(); i != m.end();) {
32 if (p(*i)) { i = m.erase(i); }
33 else { ++i; }
34 }
35 return size - m.size();
36 }
37
38 #endif // C++20
39
40 } // anonymous namespace
41
42 8 TEST(SharedPointerMap, emplace) {
43 // Place elements into container as pointers.
44 2 auto container = SharedPointerMap<std::string, Verbose<>>{};
45 2 auto& base = container.base;
46
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 2 base.emplace("one", std::make_shared<Verbose<>>("one"));
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 2 base.emplace("two", std::make_shared<Verbose<>>("two"));
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 2 base.emplace("three", std::make_shared<Verbose<>>("three"));
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 2 print(reference(container));
51 4 }
52
53 8 TEST(SharedPointerMap, insert) {
54 // Place elements into container as pointers.
55 2 auto container = SharedPointerMap<std::string, Verbose<>>{};
56 2 auto& base = container.base;
57
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 2 base.insert({"one", std::make_shared<Verbose<>>("one")});
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 2 base.insert({"two", std::make_shared<Verbose<>>("two")});
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 2 base.insert({"three", std::make_shared<Verbose<>>("three")});
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 2 print(reference(container));
62 4 }
63
64 8 TEST(SharedPointerMap, shallow_copy) {
65 // Place elements into container as pointers.
66 2 auto container = SharedPointerMap<std::string, Verbose<>>{};
67 2 auto& base = container.base;
68
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 2 base.emplace("one", std::make_shared<Verbose<>>("one"));
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 2 base.emplace("two", std::make_shared<Verbose<>>("two"));
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 2 base.emplace("three", std::make_shared<Verbose<>>("three"));
71
72 // Copying a container of pointers does not copy the referenced objects.
73
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 2 auto container_copy = container;
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 2 print(reference(container_copy));
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 6 container_copy["one"].name() = "alfa";
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 6 container_copy["two"].name() = "bravo";
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 6 container_copy["three"].name() = "charlie";
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 2 print(reference(container));
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 2 EXPECT_EQ(container, container_copy); // shallow copy
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 6 EXPECT_NE("one", container["one"].name());
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 6 EXPECT_NE("two", container["two"].name());
85 4 }
86
87 8 TEST(SharedPointerMap, erase_if) {
88 2 auto container = SharedPointerMap<std::string, Verbose<>>{};
89 2 auto& base = container.base;
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 2 base.emplace("one", std::make_shared<Verbose<>>("one"));
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 2 base.emplace("two", std::make_shared<Verbose<>>("two"));
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 2 base.emplace("three", std::make_shared<Verbose<>>("three"));
93
94 // In order to avoid copying/moving values,
95 // use the base vector of pointers for erase-remove.
96 5 auto predicate = [](const auto& elem) {
97 3 return elem.second->name() == "two";
98 };
99
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 2 EXPECT_EQ(1, erase_if(base, predicate));
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 2 EXPECT_EQ(2, container.size());
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 2 print(reference(container));
103 4 }
104
105 8 TEST(UniquePointerMap, uncopyable) {
106 2 auto container = UniquePointerMap<std::string, Verbose<>>{};
107 2 auto& base = container.base;
108
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 2 base.emplace("one", std::make_unique<Verbose<>>("one"));
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 2 base.emplace("two", std::make_unique<Verbose<>>("two"));
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 2 base.emplace("three", std::make_unique<Verbose<>>("three"));
111
112 // auto container_copy = container; // compile time error
113 4 }
114