Unit test

Author: mike-evolved

java/src/test/java/org/rocksdb/RibbonFilterTest.java

@@ -0,0 +1,74 @@
+// Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
+// This source code is licensed under both the GPLv2 (found in the
+// COPYING file in the root directory) and Apache 2.0 License
+// (found in the LICENSE.Apache file in the root directory).
+
+package org.rocksdb;
+
+import org.junit.ClassRule;
+import org.junit.Test;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+public class RibbonFilterTest {
+
+  @ClassRule
+  public static final RocksNativeLibraryResource ROCKS_NATIVE_LIBRARY_RESOURCE =
+      new RocksNativeLibraryResource();
+
+  @Test
+  public void ribbonFilter() {
+    // Test default constructor
+    try (final RibbonFilter ribbonFilter = new RibbonFilter()) {
+      assertThat(ribbonFilter).isNotNull();
+    }
+  }
+
+  @Test
+  public void ribbonFilterWithBitsPerKey() {
+    // Test constructor with bits per key
+    try (final RibbonFilter ribbonFilter = new RibbonFilter(10.0)) {
+      assertThat(ribbonFilter).isNotNull();
+    }
+  }
+
+  @Test
+  public void ribbonFilterWithHybridMode() {
+    // Test constructor with hybrid Bloom/Ribbon mode
+    try (final RibbonFilter ribbonFilter = new RibbonFilter(10.0, 1)) {
+      assertThat(ribbonFilter).isNotNull();
+    }
+  }
+
+  @Test
+  public void ribbonFilterAlwaysRibbon() {
+    // Test always use Ribbon (bloomBeforeLevel = -1)
+    try (final RibbonFilter ribbonFilter = new RibbonFilter(10.0, -1)) {
+      assertThat(ribbonFilter).isNotNull();
+    }
+  }
+
+  @Test
+  public void ribbonFilterEquality() {
+    // Test equals and hashCode
+    try (final RibbonFilter filter1 = new RibbonFilter(10.0, 1);
+         final RibbonFilter filter2 = new RibbonFilter(10.0, 1);
+         final RibbonFilter filter3 = new RibbonFilter(10.0, 2)) {
+      assertThat(filter1).isEqualTo(filter2);
+      assertThat(filter1.hashCode()).isEqualTo(filter2.hashCode());
+      assertThat(filter1).isNotEqualTo(filter3);
+    }
+  }
+
+  @Test
+  public void ribbonFilterWithTableConfig() {
+    // Test using RibbonFilter with BlockBasedTableConfig
+    try (final RibbonFilter ribbonFilter = new RibbonFilter(10.0);
+         final Options options = new Options()) {
+      final BlockBasedTableConfig tableConfig = new BlockBasedTableConfig();
+      tableConfig.setFilterPolicy(ribbonFilter);
+      options.setTableFormatConfig(tableConfig);
+      assertThat(options).isNotNull();
+    }
+  }
+}