mirror of
https://github.com/bblanchon/ArduinoJson.git
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93 lines
2.4 KiB
C++
93 lines
2.4 KiB
C++
// ArduinoJson - https://arduinojson.org
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// Copyright © 2014-2025, Benoit BLANCHON
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// MIT License
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#include <ArduinoJson.hpp>
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#include <catch.hpp>
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#include "Allocators.hpp"
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using namespace ArduinoJson::detail;
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TEST_CASE("ResourceManager::allocVariant()") {
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SECTION("Returns different pointer") {
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ResourceManager resources;
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auto s1 = resources.allocVariant();
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REQUIRE(s1.ptr() != nullptr);
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auto s2 = resources.allocVariant();
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REQUIRE(s2.ptr() != nullptr);
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REQUIRE(s1.ptr() != s2.ptr());
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}
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SECTION("Returns the same slot after calling freeVariant()") {
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ResourceManager resources;
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auto s1 = resources.allocVariant();
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auto s2 = resources.allocVariant();
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resources.freeVariant(s1);
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resources.freeVariant(s2);
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auto s3 = resources.allocVariant();
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auto s4 = resources.allocVariant();
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auto s5 = resources.allocVariant();
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REQUIRE(s2.id() != s1.id());
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REQUIRE(s3.id() == s2.id());
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REQUIRE(s4.id() == s1.id());
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REQUIRE(s5.id() != s1.id());
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REQUIRE(s5.id() != s2.id());
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}
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SECTION("Returns aligned pointers") {
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ResourceManager resources;
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REQUIRE(isAligned(resources.allocVariant().ptr()));
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REQUIRE(isAligned(resources.allocVariant().ptr()));
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}
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SECTION("Returns null if pool list allocation fails") {
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ResourceManager resources(FailingAllocator::instance());
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auto variant = resources.allocVariant();
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REQUIRE(variant.id() == NULL_SLOT);
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REQUIRE(variant.ptr() == nullptr);
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}
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SECTION("Returns null if pool allocation fails") {
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ResourceManager resources(FailingAllocator::instance());
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resources.allocVariant();
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auto variant = resources.allocVariant();
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REQUIRE(variant.id() == NULL_SLOT);
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REQUIRE(variant.ptr() == nullptr);
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}
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SECTION("Try overflow pool counter") {
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ResourceManager resources;
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// this test assumes SlotId is 8-bit; otherwise it consumes a lot of memory
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// tyhe GitHub Workflow gets killed
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REQUIRE(NULL_SLOT == 255);
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// fill all the pools
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for (SlotId i = 0; i < NULL_SLOT; i++) {
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auto slot = resources.allocVariant();
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REQUIRE(slot.id() == i); // or != NULL_SLOT
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REQUIRE(slot.ptr() != nullptr);
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}
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REQUIRE(resources.overflowed() == false);
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// now all allocations should fail
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for (int i = 0; i < 10; i++) {
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auto slot = resources.allocVariant();
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REQUIRE(slot.id() == NULL_SLOT);
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REQUIRE(slot.ptr() == nullptr);
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}
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REQUIRE(resources.overflowed() == true);
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}
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}
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