Update to Minecraft 1.13-pre7

By: md_5 <git@md-5.net>

paper-server/src/test/java/org/bukkit/BlockDataTest.java

@@ -0,0 +1,58 @@
+package org.bukkit;
+
+import net.minecraft.server.BlockCake;
+import net.minecraft.server.Blocks;
+import org.bukkit.block.data.BlockData;
+import org.bukkit.block.data.type.Cake;
+import org.bukkit.craftbukkit.block.data.CraftBlockData;
+import org.bukkit.support.AbstractTestingBase;
+import static org.hamcrest.Matchers.*;
+import org.junit.Assert;
+import org.junit.Test;
+
+public class BlockDataTest extends AbstractTestingBase {
+
+    @Test
+    public void testParsing() {
+        BlockData cakeTest = CraftBlockData.fromData(Blocks.CAKE.getBlockData().set(BlockCake.BITES, 3));
+
+        BlockData materialString = CraftBlockData.newData(Material.CAKE, "[bites=3]");
+        Assert.assertThat(materialString, is(cakeTest));
+
+        BlockData combined = CraftBlockData.newData(null, "cake[bites=3]");
+        Assert.assertThat(combined, is(cakeTest));
+
+        BlockData combinedMinecraft = CraftBlockData.newData(null, "minecraft:cake[bites=3]");
+        Assert.assertThat(combinedMinecraft, is(cakeTest));
+
+        BlockData inverted = CraftBlockData.newData(null, cakeTest.getAsString());
+        Assert.assertThat(inverted, is(cakeTest));
+    }
+
+    @Test(expected = IllegalArgumentException.class)
+    public void testBadMaterial() {
+        CraftBlockData.newData(null, "invalid");
+    }
+
+    @Test(expected = IllegalArgumentException.class)
+    public void testBadSyntax() {
+        CraftBlockData.newData(null, "minecraft:cake[bites=3");
+    }
+
+    @Test(expected = IllegalArgumentException.class)
+    public void testDoubleMaterial() {
+        CraftBlockData.newData(Material.CAKE, "minecraft:cake[bites=3]");
+    }
+
+    @Test
+    public void testClone() {
+        Cake cakeTest = (Cake) CraftBlockData.fromData(Blocks.CAKE.getBlockData().set(BlockCake.BITES, 3));
+        Cake clone = (Cake) cakeTest.clone();
+
+        Assert.assertFalse("Clone did not return new object", cakeTest == clone);
+        Assert.assertThat("Clone is not equal", clone, is(cakeTest));
+
+        clone.setBites(1);
+        Assert.assertThat("Clone is not actually clone", clone, is(not(cakeTest)));
+    }
+}