1 files changed, 89 insertions, 0 deletions
diff --git a/src/test/java/de/hysky/skyblocker/utils/datafixer/ItemStackComponentizationFixerTest.java b/src/test/java/de/hysky/skyblocker/utils/datafixer/ItemStackComponentizationFixerTest.java
new file mode 100644
index 00000000..d791fd72
--- /dev/null
+++ b/src/test/java/de/hysky/skyblocker/utils/datafixer/ItemStackComponentizationFixerTest.java
@@ -0,0 +1,89 @@
+package de.hysky.skyblocker.utils.datafixer;
+
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.Test;
+
+import com.google.gson.Gson;
+import com.google.gson.JsonElement;
+import com.mojang.serialization.JsonOps;
+
+import net.minecraft.Bootstrap;
+import net.minecraft.SharedConstants;
+import net.minecraft.component.DataComponentTypes;
+import net.minecraft.component.type.ItemEnchantmentsComponent;
+import net.minecraft.enchantment.Enchantments;
+import net.minecraft.item.ItemStack;
+import net.minecraft.item.Items;
+import net.minecraft.nbt.NbtCompound;
+import net.minecraft.nbt.StringNbtReader;
+import net.minecraft.util.Util;
+
+public class ItemStackComponentizationFixerTest {
+	private final NbtCompound NBT = convertToNbt("{id:\"minecraft:diamond_sword\",Count:1,tag:{ExtraAttributes:{id:\"TEST\"}}}");
+	private final Gson GSON = new Gson();
+	private final ItemStack TEST_STACK = Util.make(new ItemStack(Items.DIAMOND_SWORD, 1), item -> {
+		ItemEnchantmentsComponent.Builder builder = new ItemEnchantmentsComponent.Builder(ItemEnchantmentsComponent.DEFAULT);
+
+		builder.add(Enchantments.SHARPNESS, 1);
+		item.set(DataComponentTypes.ENCHANTMENTS, builder.build());
+	});
+
+	@BeforeAll
+	public static void setup() {
+		SharedConstants.createGameVersion();
+		Bootstrap.initialize();
+	}
+
+	@Test
+	void testNbtConversion() {
+		Assertions.assertNotEquals(NBT, new NbtCompound());
+	}
+
+	@Test
+	void testDataFixer() {
+		ItemStack fixedStack = ItemStackComponentizationFixer.fixUpItem(NBT);
+		JsonElement stackJson = ItemStack.CODEC.encodeStart(JsonOps.INSTANCE, fixedStack).getOrThrow();
+
+		Assertions.assertEquals("{\"id\":\"minecraft:diamond_sword\",\"count\":1,\"components\":{\"minecraft:custom_data\":{\"ExtraAttributes\":{\"id\":\"TEST\"}}}}", GSON.toJson(stackJson));
+	}
+
+	@Test
+	void testComponentsAsString() {
+		String componentString = ItemStackComponentizationFixer.componentsAsString(TEST_STACK);
+
+		Assertions.assertEquals("[minecraft:enchantments={levels:{\"minecraft:sharpness\":1}}]", componentString);
+	}
+
+	@Test
+	void testFromComponentsString() {
+		String componentString = "[minecraft:enchantments={levels:{\"minecraft:sharpness\":1}}]";
+		ItemStack stack = ItemStackComponentizationFixer.fromComponentsString("minecraft:diamond_sword", 1, componentString);
+
+		Assertions.assertTrue(ItemStack.areItemsAndComponentsEqual(stack, TEST_STACK));
+	}
+
+	@Test
+	void testFromComponentsStringWithInvalidItem() {
+		String componentString = "[minecraft:enchantments={levels:{\"minecraft:sharpness\":1}}]";
+		ItemStack stack = ItemStackComponentizationFixer.fromComponentsString("minecraft:does_not_exist", 1, componentString);
+
+		Assertions.assertEquals(stack, ItemStack.EMPTY);
+	}
+
+	@Test
+	void testNbtToComponentsString() {
+		ItemStack fixedStack = ItemStackComponentizationFixer.fixUpItem(NBT);
+		String componentsString = ItemStackComponentizationFixer.componentsAsString(fixedStack);
+
+		Assertions.assertEquals("[minecraft:custom_data={ExtraAttributes:{id:\"TEST\"}}]", componentsString);
+	}
+
+	private static NbtCompound convertToNbt(String nbt) {
+		try {
+			return StringNbtReader.parse(nbt);
+		} catch (Exception e) {
+			return new NbtCompound();
+		}
+	}
+}