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106 lines
2.8 KiB
106 lines
2.8 KiB
// ArduinoJson - https://arduinojson.org
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// Copyright © 2014-2023, Benoit BLANCHON
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// MIT License
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#include <ArduinoJson/Memory/MemoryPool.hpp>
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#include <ArduinoJson/Strings/StringAdapters.hpp>
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#include <catch.hpp>
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using namespace ArduinoJson::detail;
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static const char* saveString(MemoryPool& pool, const char* s) {
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return pool.saveString(adaptString(const_cast<char*>(s)));
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}
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static const char* saveString(MemoryPool& pool, const char* s, size_t n) {
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return pool.saveString(adaptString(s, n));
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}
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TEST_CASE("MemoryPool::saveString()") {
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char buffer[32];
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MemoryPool pool(buffer, 32);
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SECTION("Duplicates different strings") {
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const char* a = saveString(pool, "hello");
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const char* b = saveString(pool, "world");
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REQUIRE(a != b);
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REQUIRE(pool.size() == 6 + 6);
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}
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SECTION("Deduplicates identical strings") {
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const char* a = saveString(pool, "hello");
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const char* b = saveString(pool, "hello");
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REQUIRE(a == b);
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REQUIRE(pool.size() == 6);
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}
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SECTION("Deduplicates identical strings that contain NUL") {
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const char* a = saveString(pool, "hello\0world", 11);
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const char* b = saveString(pool, "hello\0world", 11);
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REQUIRE(a == b);
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REQUIRE(pool.size() == 12);
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}
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SECTION("Reuse part of a string if it ends with NUL") {
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const char* a = saveString(pool, "hello\0world", 11);
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const char* b = saveString(pool, "hello");
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REQUIRE(a == b);
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REQUIRE(pool.size() == 12);
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}
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SECTION("Don't stop on first NUL") {
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const char* a = saveString(pool, "hello");
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const char* b = saveString(pool, "hello\0world", 11);
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REQUIRE(a != b);
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REQUIRE(pool.size() == 18);
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}
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SECTION("Returns NULL when full") {
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REQUIRE(pool.capacity() == 32);
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const void* p1 = saveString(pool, "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa");
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REQUIRE(p1 != 0);
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REQUIRE(pool.size() == 32);
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const void* p2 = saveString(pool, "b");
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REQUIRE(p2 == 0);
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}
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SECTION("Returns NULL when pool is too small") {
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const void* p = saveString(pool, "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa");
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REQUIRE(0 == p);
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}
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SECTION("Returns NULL when buffer is NULL") {
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MemoryPool pool2(0, 32);
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REQUIRE(0 == saveString(pool2, "a"));
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}
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SECTION("Returns NULL when capacity is 0") {
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MemoryPool pool2(buffer, 0);
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REQUIRE(0 == saveString(pool2, "a"));
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}
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SECTION("Returns same address after clear()") {
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const void* a = saveString(pool, "hello");
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pool.clear();
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const void* b = saveString(pool, "world");
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REQUIRE(a == b);
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}
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SECTION("Can use full capacity when fresh") {
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const void* a = saveString(pool, "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa");
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REQUIRE(a != 0);
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}
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SECTION("Can use full capacity after clear") {
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saveString(pool, "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa");
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pool.clear();
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const void* a = saveString(pool, "bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb");
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REQUIRE(a != 0);
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}
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}
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