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voxelforge/tests/testItemStack.cpp
T
2026-09-11 19:09:24 +02:00

321 lines
11 KiB
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#include "testHarness.h"
#include "vf/ItemStack.h"
#include <string>
#include <vector>
using namespace vf;
namespace {
EnchantSet withEnchant(EnchantKind kind, int level) {
EnchantSet set;
addEnchant(set, kind, level);
return set;
}
int hitsUntilBroken(MetaStack stack, uint32_t seed, int limit) {
uint32_t rng = seed;
for (int hits = 1; hits <= limit; ++hits) {
WearResult wear = damageStack(stack, 1, rng);
if (wear == WearResult::Broke) return hits;
}
return -1;
}
} // namespace
VF_TEST(stackLimitFollowsTheItemKindRatherThanAFixedNumber) {
CHECK_EQ(makeStack(ItemId::Stone, 1).maxCount(), 64);
CHECK_EQ(makeStack(ItemId::Bread, 1).maxCount(), 64);
CHECK_EQ(makeTool(ItemId::IronPickaxe).maxCount(), 1);
CHECK_EQ(stackLimitFor(ItemId::None), 0);
MetaStack overfilled = makeStack(ItemId::Stone, 200);
CHECK_EQ(overfilled.count, 64);
CHECK(overfilled.full());
CHECK_EQ(overfilled.room(), 0);
}
VF_TEST(aFreshToolCarriesItsFullDurabilityAndNothingElse) {
MetaStack pickaxe = makeTool(ItemId::DiamondPickaxe);
CHECK_EQ(pickaxe.count, 1);
CHECK_EQ(pickaxe.meta.durability.max, toolMaxDurability(ItemId::DiamondPickaxe));
CHECK_EQ(pickaxe.meta.durability.used, 0);
CHECK(pickaxe.meta.durability.damageable());
CHECK(!pickaxe.meta.durability.broken());
CHECK_NEAR(pickaxe.meta.durability.fraction(), 1.0f, 0.0001f);
CHECK(pickaxe.meta.pristine());
MetaStack notATool = makeTool(ItemId::Stone);
CHECK(notATool.empty());
}
VF_TEST(twoUsedToolsOnlyMergeWhenTheirWearIsIdentical) {
uint32_t rng = 7u;
MetaStack fresh = makeTool(ItemId::IronPickaxe);
MetaStack used = makeTool(ItemId::IronPickaxe);
damageStack(used, 5, rng);
CHECK(!stacksMergeable(fresh, used));
CHECK(stacksMergeable(fresh, makeTool(ItemId::IronPickaxe)));
MetaStack sameWear = makeTool(ItemId::IronPickaxe);
sameWear.meta.durability.used = used.meta.durability.used;
CHECK(stacksMergeable(used, sameWear));
StackTransfer refused = transferAll(used, fresh);
CHECK(refused.incompatible);
CHECK_EQ(refused.moved, 0);
CHECK_EQ(fresh.count, 1);
CHECK_EQ(used.count, 1);
}
VF_TEST(anEnchantedSwordNeverMergesWithAPlainOne) {
MetaStack plain = makeTool(ItemId::DiamondSword);
MetaStack enchanted = makeEnchantedTool(ItemId::DiamondSword,
withEnchant(EnchantKind::Sharpness, 3));
CHECK(!stacksMergeable(plain, enchanted));
CHECK(!stacksIdentical(plain, enchanted));
MetaStack sameEnchant = makeEnchantedTool(ItemId::DiamondSword,
withEnchant(EnchantKind::Sharpness, 3));
CHECK(stacksMergeable(enchanted, sameEnchant));
MetaStack otherLevel = makeEnchantedTool(ItemId::DiamondSword,
withEnchant(EnchantKind::Sharpness, 2));
CHECK(!stacksMergeable(enchanted, otherLevel));
}
VF_TEST(enchantmentOrderDoesNotChangeStackIdentity) {
EnchantSet forward;
addEnchant(forward, EnchantKind::Unbreaking, 2);
addEnchant(forward, EnchantKind::Efficiency, 4);
EnchantSet reversed;
addEnchant(reversed, EnchantKind::Efficiency, 4);
addEnchant(reversed, EnchantKind::Unbreaking, 2);
CHECK(sameEnchants(forward, reversed));
CHECK(stacksMergeable(makeEnchantedTool(ItemId::IronPickaxe, forward),
makeEnchantedTool(ItemId::IronPickaxe, reversed)));
EnchantSet shorter = withEnchant(EnchantKind::Efficiency, 4);
CHECK(!sameEnchants(forward, shorter));
}
VF_TEST(aCustomNameKeepsAStackOnItsOwn) {
MetaStack named = makeNamedStack(ItemId::Stone, 10, "Cornerstone");
MetaStack plain = makeStack(ItemId::Stone, 10);
CHECK_EQ(named.count, 1);
CHECK_EQ(named.maxCount(), 1);
CHECK(!stacksMergeable(named, plain));
CHECK(stacksMergeable(named, makeNamedStack(ItemId::Stone, 1, "Cornerstone")));
CHECK(!stacksMergeable(named, makeNamedStack(ItemId::Stone, 1, "Keystone")));
}
VF_TEST(transferMovesOnlyWhatFitsAndLeavesTheRestBehind) {
MetaStack source = makeStack(ItemId::Cobblestone, 40);
MetaStack destination = makeStack(ItemId::Cobblestone, 40);
StackTransfer moved = transferAll(source, destination);
CHECK_EQ(moved.moved, 24);
CHECK(moved.destinationFull);
CHECK(!moved.sourceEmptied);
CHECK_EQ(destination.count, 64);
CHECK_EQ(source.count, 16);
MetaStack elsewhere;
StackTransfer rest = transferAll(source, elsewhere);
CHECK_EQ(rest.moved, 16);
CHECK(rest.sourceEmptied);
CHECK(source.empty());
CHECK_EQ(elsewhere.count, 16);
CHECK(elsewhere.item == ItemId::Cobblestone);
}
VF_TEST(transferRefusesAnIncompatibleDestinationWithoutMovingAnything) {
MetaStack planks = makeStack(ItemId::Planks, 12);
MetaStack stone = makeStack(ItemId::Stone, 5);
StackTransfer blocked = transferAll(planks, stone);
CHECK(blocked.incompatible);
CHECK_EQ(blocked.moved, 0);
CHECK_EQ(planks.count, 12);
CHECK_EQ(stone.count, 5);
}
VF_TEST(splittingAStackLeavesTheLargerHalfBehind) {
MetaStack odd = makeStack(ItemId::Sand, 7);
MetaStack taken = splitHalf(odd);
CHECK_EQ(taken.count, 4);
CHECK_EQ(odd.count, 3);
MetaStack single = makeStack(ItemId::Sand, 1);
MetaStack lastOne = splitHalf(single);
CHECK_EQ(lastOne.count, 1);
CHECK(single.empty());
MetaStack pile = makeStack(ItemId::Sand, 30);
MetaStack five = splitOff(pile, 5);
CHECK_EQ(five.count, 5);
CHECK_EQ(pile.count, 25);
CHECK_EQ(splitOff(pile, 0).count, 0);
}
VF_TEST(splittingCarriesTheMetadataOntoBothHalves) {
MetaStack named = makeStack(ItemId::Stone, 20);
named.meta.repairCost = 3;
MetaStack half = splitHalf(named);
CHECK_EQ(half.meta.repairCost, 3);
CHECK_EQ(named.meta.repairCost, 3);
CHECK(stacksMergeable(half, named));
}
VF_TEST(defragmentPacksCompatibleStacksAndFreesTheSlotsBehindThem) {
std::vector<MetaStack> pouch = {
makeStack(ItemId::Stone, 40), MetaStack{}, makeStack(ItemId::Stone, 40),
makeStack(ItemId::Planks, 5), makeStack(ItemId::Stone, 10),
makeStack(ItemId::Planks, 7),
};
int freed = defragmentStacks(pouch);
CHECK_EQ(totalCountOf(pouch, ItemId::Stone), 90);
CHECK_EQ(totalCountOf(pouch, ItemId::Planks), 12);
CHECK(pouch[0].item == ItemId::Stone);
CHECK_EQ(pouch[0].count, 64);
CHECK(pouch[1].item == ItemId::Stone);
CHECK_EQ(pouch[1].count, 26);
CHECK(pouch[2].item == ItemId::Planks);
CHECK_EQ(pouch[2].count, 12);
CHECK(pouch[3].empty());
CHECK(pouch[5].empty());
CHECK_EQ(freed, 2);
}
VF_TEST(defragmentKeepsStacksWithDifferentMetadataApart) {
uint32_t rng = 11u;
MetaStack worn = makeTool(ItemId::IronAxe);
damageStack(worn, 3, rng);
std::vector<MetaStack> pouch = {makeTool(ItemId::IronAxe), worn, makeTool(ItemId::IronAxe)};
defragmentStacks(pouch);
CHECK_EQ(totalCountOf(pouch, ItemId::IronAxe), 3);
CHECK_EQ(pouch[0].count, 1);
CHECK_EQ(pouch[1].count, 1);
CHECK_EQ(pouch[2].count, 1);
}
VF_TEST(sortingIsStableForStacksThatCompareEqual) {
std::vector<MetaStack> pouch = {
makeStack(ItemId::Planks, 10), MetaStack{}, makeStack(ItemId::Stone, 10),
makeStack(ItemId::Planks, 10), makeStack(ItemId::Stone, 64),
};
pouch[0].meta.repairCost = 1;
pouch[3].meta.repairCost = 2;
sortStacks(pouch);
CHECK(pouch[0].item == ItemId::Stone);
CHECK_EQ(pouch[0].count, 64);
CHECK(pouch[1].item == ItemId::Stone);
CHECK(pouch[2].item == ItemId::Planks);
CHECK_EQ(pouch[2].meta.repairCost, 1);
CHECK(pouch[3].item == ItemId::Planks);
CHECK_EQ(pouch[3].meta.repairCost, 2);
CHECK(pouch[4].empty());
}
VF_TEST(nbtRoundTripKeepsDurabilityEnchantmentsAndTheCustomName) {
EnchantSet enchants;
addEnchant(enchants, EnchantKind::Sharpness, 4);
addEnchant(enchants, EnchantKind::Unbreaking, 3);
addEnchant(enchants, EnchantKind::Mending, 1);
MetaStack sword = makeEnchantedTool(ItemId::DiamondSword, enchants);
sword.meta.customName = "Vulpine Edge";
sword.meta.durability.used = 137;
sword.meta.repairCost = 9;
MetaStack restored;
CHECK(stackFromNbt(stackToNbt(sword), restored));
CHECK(restored.item == ItemId::DiamondSword);
CHECK_EQ(restored.count, 1);
CHECK_EQ(restored.meta.durability.used, 137);
CHECK_EQ(restored.meta.durability.max, sword.meta.durability.max);
CHECK_EQ(restored.meta.repairCost, 9);
CHECK(restored.meta.customName == std::string("Vulpine Edge"));
CHECK_EQ(restored.meta.enchants.levelOf(EnchantKind::Sharpness), 4);
CHECK_EQ(restored.meta.enchants.levelOf(EnchantKind::Unbreaking), 3);
CHECK_EQ(restored.meta.enchants.levelOf(EnchantKind::Mending), 1);
CHECK(stacksIdentical(sword, restored));
}
VF_TEST(nbtRoundTripSurvivesTheBinaryEncoderAndKeepsEmptySlotsEmpty) {
std::vector<MetaStack> pouch = {
makeStack(ItemId::Stone, 64),
MetaStack{},
makeNamedStack(ItemId::GoldSword, 1, "Bribe"),
makeStack(ItemId::Apple, 3),
};
pouch[2].meta.unbreakable = true;
NbtTag root = NbtTag::makeCompound();
root.put("Pouch", stackListToNbt(pouch));
std::vector<uint8_t> bytes = serializeNbt("Test", root);
std::string name;
NbtTag decoded;
CHECK(deserializeNbt(bytes.data(), bytes.size(), name, decoded));
const NbtTag* list = decoded.find("Pouch");
CHECK(list != nullptr);
if (list == nullptr) return;
std::vector<MetaStack> restored;
CHECK(stackListFromNbt(*list, restored));
CHECK_EQ(restored.size(), pouch.size());
for (std::size_t i = 0; i < pouch.size(); ++i) {
CHECK(stacksIdentical(pouch[i], restored[i]));
}
CHECK(restored[1].empty());
CHECK(restored[2].meta.unbreakable);
}
VF_TEST(nbtRejectsAStackTagThatNamesAnItemOutsideTheTable) {
NbtTag broken = NbtTag::makeCompound();
broken.put("Id", NbtTag::makeShort(static_cast<int16_t>(static_cast<int>(ItemId::Count) + 40)));
broken.put("Count", NbtTag::makeShort(1));
MetaStack out = makeStack(ItemId::Stone, 5);
CHECK(!stackFromNbt(broken, out));
CHECK(out.empty());
NbtTag notACompound = NbtTag::makeInt(4);
CHECK(!stackFromNbt(notACompound, out));
}
VF_TEST(aToolBreaksOnExactlyTheHitThatReachesZeroDurability) {
uint32_t rng = 5u;
MetaStack pickaxe = makeTool(ItemId::WoodPickaxe);
int max = pickaxe.meta.durability.max;
CHECK(max > 1);
for (int hit = 1; hit < max; ++hit) {
WearResult wear = damageStack(pickaxe, 1, rng);
CHECK(wear == WearResult::Damaged);
}
CHECK_EQ(pickaxe.meta.durability.remaining(), 1);
CHECK(!pickaxe.empty());
WearResult final = damageStack(pickaxe, 1, rng);
CHECK(final == WearResult::Broke);
CHECK(pickaxe.empty());
CHECK(damageStack(pickaxe, 1, rng) == WearResult::NotDamageable);
}