tests: add resource pack equality test

serializer-minecraft/src/test/java/team/unnamed/creative/serialize/minecraft/resourcepack/ResourcePackEqualityTest.java

@@ -0,0 +1,112 @@
+/*
+ * This file is part of creative, licensed under the MIT license
+ *
+ * Copyright (c) 2021-2023 Unnamed Team
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+package team.unnamed.creative.serialize.minecraft.resourcepack;
+
+import net.kyori.adventure.key.Key;
+import org.junit.jupiter.api.Test;
+import team.unnamed.creative.ResourcePack;
+import team.unnamed.creative.base.Writable;
+import team.unnamed.creative.font.FontProvider;
+import team.unnamed.creative.serialize.minecraft.MinecraftResourcePackReader;
+import team.unnamed.creative.serialize.minecraft.MinecraftResourcePackWriter;
+import team.unnamed.creative.serialize.minecraft.fs.FileTreeReader;
+import team.unnamed.creative.serialize.minecraft.fs.FileTreeWriter;
+import team.unnamed.creative.texture.Texture;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.nio.charset.StandardCharsets;
+import java.util.Arrays;
+import java.util.List;
+import java.util.function.Consumer;
+import java.util.zip.ZipInputStream;
+import java.util.zip.ZipOutputStream;
+
+import static org.junit.jupiter.api.Assertions.assertArrayEquals;
+
+class ResourcePackEqualityTest {
+    @Test
+    void test() {
+        assertResourcePackZipsToTheSameFile(
+                "Test with pack meta only",
+                pack -> pack.packMeta(30, "This is the a resource-pack")
+        );
+
+        assertResourcePackZipsToTheSameFile(
+                "Test with pack meta and textures",
+                pack -> pack.packMeta(18, "This is another resource-pack"),
+                pack -> pack.texture(Texture.texture(Key.key("minecraft:test_texture"), Writable.EMPTY)),
+                pack -> pack.texture(Texture.texture(Key.key("minecraft:another_texture"), Writable.stringUtf8("asddasd")))
+        );
+
+        assertResourcePackZipsToTheSameFile(
+                "Test with unknown files",
+                pack -> pack.packMeta(18, "This is a test with unknown files"),
+                pack -> pack.unknownFile("license.txt", Writable.stringUtf8("CC0 License")),
+                pack -> pack.unknownFile("credits.txt", Writable.stringUtf8("Unnamed Team"))
+        );
+
+        assertResourcePackZipsToTheSameFile(
+                "Test with fonts",
+                pack -> pack.packMeta(18, "This is a test with fonts"),
+                pack -> pack.font(Key.key("minecraft:default"), FontProvider.bitMap(Key.key("file.png"), 8, 6, Arrays.asList("asd", "fjm")))
+        );
+    }
+
+    @SafeVarargs
+    final void assertResourcePackZipsToTheSameFile(String message, Consumer<ResourcePack>... configurerActionsArray) {
+        List<Consumer<ResourcePack>> configurerActions = Arrays.asList(configurerActionsArray);
+
+        // todo: maybe ensure different order doesn't affect?
+
+        ResourcePack resourcePack = ResourcePack.resourcePack();
+        for (Consumer<ResourcePack> configurer : configurerActions) {
+            configurer.accept(resourcePack);
+        }
+
+        ResourcePack resourcePack2 = ResourcePack.resourcePack();
+        for (Consumer<ResourcePack> configurer : configurerActions) {
+            configurer.accept(resourcePack2);
+        }
+
+        assertArrayEquals(zip(resourcePack), zip(resourcePack2), "Resource packs are not equal (" + message + ")");
+    }
+
+    byte[] zip(ResourcePack resourcePack) {
+        ByteArrayOutputStream output = new ByteArrayOutputStream();
+        try (FileTreeWriter writer = FileTreeWriter.zip(new ZipOutputStream(output, StandardCharsets.UTF_8))) {
+            MinecraftResourcePackWriter.minecraft().write(writer, resourcePack);
+        }
+        return output.toByteArray();
+    }
+
+    ResourcePack unzip(byte[] zip) {
+        try (FileTreeReader reader = FileTreeReader.zip(new ZipInputStream(new ByteArrayInputStream(zip), StandardCharsets.UTF_8))) {
+            return MinecraftResourcePackReader.minecraft().read(reader);
+        } catch (IOException e) {
+            throw new RuntimeException(e);
+        }
+    }
+}