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Test: add AllocatorLog

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This commit is contained in:
Benoit Blanchon
2023-04-01 10:34:37 +02:00
parent 912137ccfb
commit 2eb726b744
2 changed files with 98 additions and 20 deletions
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76
extras/tests/Helpers/Allocators.hpp
View File

@ -29,29 +29,79 @@ struct FailingAllocator : ArduinoJson::Allocator {
} }
}; };
class SpyingAllocator : public ArduinoJson::Allocator { class AllocatorLog {
public: public:
virtual ~SpyingAllocator() {} struct Allocate {
Allocate(size_t s) : size(s) {}
size_t size;
};
void* allocate(size_t n) override { struct Reallocate {
_log << "A" << n; Reallocate(size_t s) : size(s) {}
return malloc(n); size_t size;
};
struct Deallocate {};
AllocatorLog& operator<<(const Allocate& a) {
_log << "allocate(" << a.size << ")\n";
return *this;
} }
void deallocate(void* p) override { AllocatorLog& operator<<(const Deallocate&) {
_log << "F"; _log << "deallocate()\n";
free(p); return *this;
} }
void* reallocate(void* ptr, size_t n) override { AllocatorLog& operator<<(const Reallocate& a) {
_log << "R" << n; _log << "reallocate(" << a.size << ")\n";
return realloc(ptr, n); return *this;
} }
std::string log() const { std::string str() const {
return _log.str(); auto s = _log.str();
if (s.empty())
return "(empty)";
s.pop_back(); // remove the trailing '\n'
return s;
}
bool operator==(const AllocatorLog& other) const {
return str() == other.str();
}
friend std::ostream& operator<<(std::ostream& os, const AllocatorLog& log) {
os << log.str();
return os;
} }
private: private:
std::ostringstream _log; std::ostringstream _log;
}; };
class SpyingAllocator : public ArduinoJson::Allocator {
public:
virtual ~SpyingAllocator() {}
void* allocate(size_t n) override {
_log << AllocatorLog::Allocate(n);
return malloc(n);
}
void deallocate(void* p) override {
_log << AllocatorLog::Deallocate();
free(p);
}
void* reallocate(void* ptr, size_t n) override {
_log << AllocatorLog::Reallocate(n);
return realloc(ptr, n);
}
const AllocatorLog& log() const {
return _log;
}
private:
AllocatorLog _log;
};

42
extras/tests/JsonDocument/allocator.cpp
View File

@ -42,7 +42,9 @@ TEST_CASE("JsonDocument's allocator") {
SECTION("Construct/Destruct") { SECTION("Construct/Destruct") {
{ JsonDocument doc(4096, &spyingAllocator); } { JsonDocument doc(4096, &spyingAllocator); }
REQUIRE(spyingAllocator.log() == "A4096F"); REQUIRE(spyingAllocator.log() == AllocatorLog()
<< AllocatorLog::Allocate(4096)
<< AllocatorLog::Deallocate());
} }
SECTION("Copy construct") { SECTION("Copy construct") {
@ -56,7 +58,11 @@ TEST_CASE("JsonDocument's allocator") {
REQUIRE(doc2.as<std::string>() == "The size of this string is 32!!"); REQUIRE(doc2.as<std::string>() == "The size of this string is 32!!");
REQUIRE(doc2.capacity() == 4096); REQUIRE(doc2.capacity() == 4096);
} }
REQUIRE(spyingAllocator.log() == "A4096A4096FF"); REQUIRE(spyingAllocator.log() == AllocatorLog()
<< AllocatorLog::Allocate(4096)
<< AllocatorLog::Allocate(4096)
<< AllocatorLog::Deallocate()
<< AllocatorLog::Deallocate());
} }
SECTION("Move construct") { SECTION("Move construct") {
@ -71,7 +77,9 @@ TEST_CASE("JsonDocument's allocator") {
REQUIRE(doc1.capacity() == 0); REQUIRE(doc1.capacity() == 0);
REQUIRE(doc2.capacity() == 4096); REQUIRE(doc2.capacity() == 4096);
} }
REQUIRE(spyingAllocator.log() == "A4096F"); REQUIRE(spyingAllocator.log() == AllocatorLog()
<< AllocatorLog::Allocate(4096)
<< AllocatorLog::Deallocate());
} }
SECTION("Copy assign larger") { SECTION("Copy assign larger") {
@ -86,7 +94,13 @@ TEST_CASE("JsonDocument's allocator") {
REQUIRE(doc2.as<std::string>() == "The size of this string is 32!!"); REQUIRE(doc2.as<std::string>() == "The size of this string is 32!!");
REQUIRE(doc2.capacity() == 4096); REQUIRE(doc2.capacity() == 4096);
} }
REQUIRE(spyingAllocator.log() == "A4096A8FA4096FF"); REQUIRE(spyingAllocator.log() == AllocatorLog()
<< AllocatorLog::Allocate(4096)
<< AllocatorLog::Allocate(8)
<< AllocatorLog::Deallocate()
<< AllocatorLog::Allocate(4096)
<< AllocatorLog::Deallocate()
<< AllocatorLog::Deallocate());
} }
SECTION("Copy assign smaller") { SECTION("Copy assign smaller") {
@ -101,7 +115,13 @@ TEST_CASE("JsonDocument's allocator") {
REQUIRE(doc2.as<std::string>() == "The size of this string is 32!!"); REQUIRE(doc2.as<std::string>() == "The size of this string is 32!!");
REQUIRE(doc2.capacity() == 1024); REQUIRE(doc2.capacity() == 1024);
} }
REQUIRE(spyingAllocator.log() == "A1024A4096FA1024FF"); REQUIRE(spyingAllocator.log() == AllocatorLog()
<< AllocatorLog::Allocate(1024)
<< AllocatorLog::Allocate(4096)
<< AllocatorLog::Deallocate()
<< AllocatorLog::Allocate(1024)
<< AllocatorLog::Deallocate()
<< AllocatorLog::Deallocate());
} }
SECTION("Copy assign same size") { SECTION("Copy assign same size") {
@ -116,7 +136,11 @@ TEST_CASE("JsonDocument's allocator") {
REQUIRE(doc2.as<std::string>() == "The size of this string is 32!!"); REQUIRE(doc2.as<std::string>() == "The size of this string is 32!!");
REQUIRE(doc2.capacity() == 1024); REQUIRE(doc2.capacity() == 1024);
} }
REQUIRE(spyingAllocator.log() == "A1024A1024FF"); REQUIRE(spyingAllocator.log() == AllocatorLog()
<< AllocatorLog::Allocate(1024)
<< AllocatorLog::Allocate(1024)
<< AllocatorLog::Deallocate()
<< AllocatorLog::Deallocate());
} }
SECTION("Move assign") { SECTION("Move assign") {
@ -132,7 +156,11 @@ TEST_CASE("JsonDocument's allocator") {
REQUIRE(doc1.capacity() == 0); REQUIRE(doc1.capacity() == 0);
REQUIRE(doc2.capacity() == 4096); REQUIRE(doc2.capacity() == 4096);
} }
REQUIRE(spyingAllocator.log() == "A4096A8FF"); REQUIRE(spyingAllocator.log() == AllocatorLog()
<< AllocatorLog::Allocate(4096)
<< AllocatorLog::Allocate(8)
<< AllocatorLog::Deallocate()
<< AllocatorLog::Deallocate());
} }
SECTION("garbageCollect()") { SECTION("garbageCollect()") {