pylucene 3.5.0-3

[pylucene.git] / lucene-java-3.5.0 / lucene / src / test / org / apache / lucene / index / TestNoMergePolicy.java

diff --git a/lucene-java-3.5.0/lucene/src/test/org/apache/lucene/index/TestNoMergePolicy.java b/lucene-java-3.5.0/lucene/src/test/org/apache/lucene/index/TestNoMergePolicy.java
new file mode 100644 (file)
index 0000000..f5f4a4e
--- /dev/null
+++ b/lucene-java-3.5.0/lucene/src/test/org/apache/lucene/index/TestNoMergePolicy.java
@@ -0,0 +1,71 @@
+package org.apache.lucene.index;
+
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import java.lang.reflect.Constructor;
+import java.lang.reflect.Method;
+import java.lang.reflect.Modifier;
+import java.util.Arrays;
+
+import org.apache.lucene.util.LuceneTestCase;
+import org.junit.Test;
+
+public class TestNoMergePolicy extends LuceneTestCase {
+
+  @Test
+  public void testNoMergePolicy() throws Exception {
+    MergePolicy mp = NoMergePolicy.NO_COMPOUND_FILES;
+    assertNull(mp.findMerges(null));
+    assertNull(mp.findForcedMerges(null, 0, null));
+    assertNull(mp.findForcedDeletesMerges(null));
+    assertFalse(mp.useCompoundFile(null, null));
+    mp.close();
+  }
+
+  @Test
+  public void testCompoundFiles() throws Exception {
+    assertFalse(NoMergePolicy.NO_COMPOUND_FILES.useCompoundFile(null, null));
+    assertTrue(NoMergePolicy.COMPOUND_FILES.useCompoundFile(null, null));
+  }
+
+  @Test
+  public void testFinalSingleton() throws Exception {
+    assertTrue(Modifier.isFinal(NoMergePolicy.class.getModifiers()));
+    Constructor<?>[] ctors = NoMergePolicy.class.getDeclaredConstructors();
+    assertEquals("expected 1 private ctor only: " + Arrays.toString(ctors), 1, ctors.length);
+    assertTrue("that 1 should be private: " + ctors[0], Modifier.isPrivate(ctors[0].getModifiers()));
+  }
+
+  @Test
+  public void testMethodsOverridden() throws Exception {
+    // Ensures that all methods of MergePolicy are overridden. That's important
+    // to ensure that NoMergePolicy overrides everything, so that no unexpected
+    // behavior/error occurs
+    for (Method m : NoMergePolicy.class.getMethods()) {
+      // getDeclaredMethods() returns just those methods that are declared on
+      // NoMergePolicy. getMethods() returns those that are visible in that
+      // context, including ones from Object. So just filter out Object. If in
+      // the future MergePolicy will extend a different class than Object, this
+      // will need to change.
+      if (m.getDeclaringClass() != Object.class) {
+        assertTrue(m + " is not overridden !", m.getDeclaringClass() == NoMergePolicy.class);
+      }
+    }
+  }
+
+}