mirror of
https://github.com/mcMMO-Dev/mcMMO.git
synced 2025-07-31 03:25:28 +02:00
nossr50
308
src/test/java/ChunkStoreTest.java
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308
src/test/java/ChunkStoreTest.java
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import com.gmail.nossr50.util.blockmeta.*;
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import com.google.common.io.Files;
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import org.bukkit.Bukkit;
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import org.bukkit.World;
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import org.junit.*;
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import org.junit.runner.RunWith;
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import org.mockito.Mockito;
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import org.powermock.api.mockito.PowerMockito;
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import org.powermock.core.classloader.annotations.PrepareForTest;
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import org.powermock.modules.junit4.PowerMockRunner;
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import java.io.*;
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import java.util.UUID;
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import static org.mockito.Mockito.mock;
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/**
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* Could be alot better. But some tests are better than none! Tests the major things, still kinda unit-testy. Verifies that the serialization isn't completely broken.
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*/
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@RunWith(PowerMockRunner.class)
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@PrepareForTest(Bukkit.class)
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public class ChunkStoreTest {
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private static File tempDir;
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@BeforeClass
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public static void setUpClass() {
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tempDir = Files.createTempDir();
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}
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@AfterClass
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public static void tearDownClass() {
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recursiveDelete(tempDir);
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}
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private World mockWorld;
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@Before
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public void setUpMock(){
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UUID worldUUID = UUID.randomUUID();
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mockWorld = mock(World.class);
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Mockito.when(mockWorld.getUID()).thenReturn(worldUUID);
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Mockito.when(mockWorld.getMaxHeight()).thenReturn(256);
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Mockito.when(mockWorld.getWorldFolder()).thenReturn(tempDir);
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PowerMockito.mockStatic(Bukkit.class);
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Mockito.when(Bukkit.getWorld(worldUUID)).thenReturn(mockWorld);
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}
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@Test
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public void testSetValue() {
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BitSetChunkStore original = new BitSetChunkStore(mockWorld, 0, 0);
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original.setTrue(0, 0, 0);
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Assert.assertTrue(original.isTrue(0, 0, 0));
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original.setFalse(0, 0, 0);
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Assert.assertFalse(original.isTrue(0, 0, 0));
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}
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@Test
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public void testIsEmpty() {
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BitSetChunkStore original = new BitSetChunkStore(mockWorld, 0, 0);
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Assert.assertTrue(original.isEmpty());
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original.setTrue(0, 0, 0);
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original.setFalse(0, 0, 0);
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Assert.assertTrue(original.isEmpty());
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}
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@Test
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public void testRoundTrip() throws IOException {
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BitSetChunkStore original = new BitSetChunkStore(mockWorld, 1, 2);
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original.setTrue(14, 89, 12);
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original.setTrue(14, 90, 12);
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original.setTrue(13, 89, 12);
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byte[] serializedBytes = serializeChunkstore(original);
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ChunkStore deserialized = BitSetChunkStore.Serialization.readChunkStore(new DataInputStream(new ByteArrayInputStream(serializedBytes)));
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assertEqual(original, deserialized);
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}
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@Test
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public void testChunkCoords() throws IOException {
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for (int x = -96; x < 0; x++) {
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int cx = x >> 4;
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int ix = Math.abs(x) % 16;
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System.out.print(cx + ":" + ix + " ");
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}
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}
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@Test
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public void testUpgrade() throws IOException {
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LegacyChunkStore original = new LegacyChunkStore(mockWorld, 12, 32);
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original.setTrue(14, 89, 12);
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original.setTrue(14, 90, 12);
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original.setTrue(13, 89, 12);
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byte[] serializedBytes = serializeChunkstore(original);
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ChunkStore deserialized = BitSetChunkStore.Serialization.readChunkStore(new DataInputStream(new ByteArrayInputStream(serializedBytes)));
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assertEqual(original, deserialized);
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}
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@Test
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public void testSimpleRegionRoundtrip() throws IOException {
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LegacyChunkStore original = new LegacyChunkStore(mockWorld, 12, 12);
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original.setTrue(14, 89, 12);
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original.setTrue(14, 90, 12);
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original.setTrue(13, 89, 12);
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File file = new File(tempDir, "SimpleRegionRoundTrip.region");
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McMMOSimpleRegionFile region = new McMMOSimpleRegionFile(file, 0, 0);
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try (DataOutputStream outputStream = region.getOutputStream(12, 12)){
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outputStream.write(serializeChunkstore(original));
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}
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region.close();
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region = new McMMOSimpleRegionFile(file, 0, 0);
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try (DataInputStream is = region.getInputStream(original.getChunkX(), original.getChunkZ()))
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{
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Assert.assertNotNull(is);
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ChunkStore deserialized = BitSetChunkStore.Serialization.readChunkStore(is);
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assertEqual(original, deserialized);
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}
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region.close();
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file.delete();
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}
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@Test
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public void testSimpleRegionRejectsOutOfBounds() {
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File file = new File(tempDir, "SimpleRegionRoundTrip.region");
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McMMOSimpleRegionFile region = new McMMOSimpleRegionFile(file, 0, 0);
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assertThrows(() -> region.getOutputStream(-1, 0), IndexOutOfBoundsException.class);
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assertThrows(() -> region.getOutputStream(0, -1), IndexOutOfBoundsException.class);
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assertThrows(() -> region.getOutputStream(32, 0), IndexOutOfBoundsException.class);
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assertThrows(() -> region.getOutputStream(0, 32), IndexOutOfBoundsException.class);
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region.close();
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}
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@Test
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public void testChunkStoreRejectsOutOfBounds() {
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ChunkStore chunkStore = new BitSetChunkStore(mockWorld, 0, 0);
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assertThrows(() -> chunkStore.setTrue(-1, 0, 0), IndexOutOfBoundsException.class);
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assertThrows(() -> chunkStore.setTrue(0, -1, 0), IndexOutOfBoundsException.class);
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assertThrows(() -> chunkStore.setTrue(0, 0, -1), IndexOutOfBoundsException.class);
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assertThrows(() -> chunkStore.setTrue(16, 0, 0), IndexOutOfBoundsException.class);
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assertThrows(() -> chunkStore.setTrue(0, mockWorld.getMaxHeight(), 0), IndexOutOfBoundsException.class);
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assertThrows(() -> chunkStore.setTrue(0, 0, 16), IndexOutOfBoundsException.class);
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}
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@Test
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public void testRegressionChunkMirrorBug() {
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ChunkManager chunkManager = new HashChunkManager();
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chunkManager.setTrue(15,0,15, mockWorld);
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chunkManager.setFalse(-15, 0, -15, mockWorld);
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Assert.assertTrue(chunkManager.isTrue(15, 0, 15, mockWorld));
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}
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private interface Delegate {
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void run();
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}
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private void assertThrows(Delegate delegate, Class<?> clazz) {
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try {
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delegate.run();
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Assert.fail(); // We didn't throw
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}
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catch (Throwable t) {
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Assert.assertTrue(t.getClass().equals(clazz));
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}
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}
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private void assertEqual(ChunkStore expected, ChunkStore actual)
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{
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Assert.assertEquals(expected.getChunkX(), actual.getChunkX());
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Assert.assertEquals(expected.getChunkZ(), actual.getChunkZ());
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Assert.assertEquals(expected.getWorldId(), actual.getWorldId());
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for (int y = 0; y < 256; y++)
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for (int x = 0; x < 16; x++)
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for (int z = 0; z < 16; z++)
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Assert.assertTrue(expected.isTrue(x, y, z) == actual.isTrue(x, y, z));
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}
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private static void recursiveDelete(File directoryToBeDeleted) {
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if (directoryToBeDeleted.isDirectory()) {
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for (File file : directoryToBeDeleted.listFiles()) {
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recursiveDelete(file);
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}
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}
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directoryToBeDeleted.delete();
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}
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private static byte[] serializeChunkstore(ChunkStore chunkStore) throws IOException {
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ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
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if (chunkStore instanceof BitSetChunkStore)
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BitSetChunkStore.Serialization.writeChunkStore(new DataOutputStream(byteArrayOutputStream), chunkStore);
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else
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new UnitTestObjectOutputStream(byteArrayOutputStream).writeObject(chunkStore); // Serializes the class as if it were the old PrimitiveChunkStore
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return byteArrayOutputStream.toByteArray();
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}
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public static class LegacyChunkStore implements ChunkStore, Serializable {
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private static final long serialVersionUID = -1L;
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transient private boolean dirty = false;
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public boolean[][][] store;
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private static final int CURRENT_VERSION = 7;
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private static final int MAGIC_NUMBER = 0xEA5EDEBB;
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private int cx;
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private int cz;
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private UUID worldUid;
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public LegacyChunkStore(World world, int cx, int cz) {
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this.cx = cx;
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this.cz = cz;
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this.worldUid = world.getUID();
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this.store = new boolean[16][16][world.getMaxHeight()];
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}
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@Override
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public boolean isDirty() {
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return dirty;
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}
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@Override
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public void setDirty(boolean dirty) {
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this.dirty = dirty;
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}
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@Override
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public int getChunkX() {
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return cx;
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}
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@Override
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public int getChunkZ() {
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return cz;
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}
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@Override
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public UUID getWorldId() {
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return worldUid;
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}
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@Override
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public boolean isTrue(int x, int y, int z) {
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return store[x][z][y];
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}
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@Override
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public void setTrue(int x, int y, int z) {
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if (y >= store[0][0].length || y < 0)
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return;
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store[x][z][y] = true;
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dirty = true;
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}
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@Override
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public void setFalse(int x, int y, int z) {
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if (y >= store[0][0].length || y < 0)
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return;
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store[x][z][y] = false;
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dirty = true;
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}
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@Override
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public void set(int x, int y, int z, boolean value) {
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if (y >= store[0][0].length || y < 0)
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return;
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store[x][z][y] = value;
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dirty = true;
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}
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@Override
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public boolean isEmpty() {
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for (int x = 0; x < 16; x++) {
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for (int z = 0; z < 16; z++) {
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for (int y = 0; y < store[0][0].length; y++) {
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if (store[x][z][y]) {
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return false;
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}
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}
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}
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}
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return true;
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}
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private void writeObject(ObjectOutputStream out) throws IOException {
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out.writeInt(MAGIC_NUMBER);
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out.writeInt(CURRENT_VERSION);
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out.writeLong(worldUid.getLeastSignificantBits());
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out.writeLong(worldUid.getMostSignificantBits());
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out.writeInt(cx);
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out.writeInt(cz);
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out.writeObject(store);
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dirty = false;
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}
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private void readObject(ObjectInputStream in) throws IOException, ClassNotFoundException {
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throw new UnsupportedOperationException();
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}
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}
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private static class UnitTestObjectOutputStream extends ObjectOutputStream {
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public UnitTestObjectOutputStream(OutputStream outputStream) throws IOException {
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super(outputStream);
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}
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@Override
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public void writeUTF(String str) throws IOException {
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// Pretend to be the old class
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if (str.equals(LegacyChunkStore.class.getName()))
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str = "com.gmail.nossr50.util.blockmeta.chunkmeta.PrimitiveChunkStore";
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super.writeUTF(str);
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}
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}
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}
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