+++ /dev/null
-package org.apache.lucene.util;
-
-/**
- * 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.
- */
-
-public class TestVirtualMethod extends LuceneTestCase {
-
- private static final VirtualMethod<TestVirtualMethod> publicTestMethod =
- new VirtualMethod<TestVirtualMethod>(TestVirtualMethod.class, "publicTest", String.class);
- private static final VirtualMethod<TestVirtualMethod> protectedTestMethod =
- new VirtualMethod<TestVirtualMethod>(TestVirtualMethod.class, "protectedTest", int.class);
-
- public void publicTest(String test) {}
- protected void protectedTest(int test) {}
-
- static class TestClass1 extends TestVirtualMethod {
- @Override
- public void publicTest(String test) {}
- @Override
- protected void protectedTest(int test) {}
- }
-
- static class TestClass2 extends TestClass1 {
- @Override // make it public here
- public void protectedTest(int test) {}
- }
-
- static class TestClass3 extends TestClass2 {
- @Override
- public void publicTest(String test) {}
- }
-
- static class TestClass4 extends TestVirtualMethod {
- }
-
- static class TestClass5 extends TestClass4 {
- }
-
- public void testGeneral() {
- assertEquals(0, publicTestMethod.getImplementationDistance(this.getClass()));
- assertEquals(1, publicTestMethod.getImplementationDistance(TestClass1.class));
- assertEquals(1, publicTestMethod.getImplementationDistance(TestClass2.class));
- assertEquals(3, publicTestMethod.getImplementationDistance(TestClass3.class));
- assertFalse(publicTestMethod.isOverriddenAsOf(TestClass4.class));
- assertFalse(publicTestMethod.isOverriddenAsOf(TestClass5.class));
-
- assertEquals(0, protectedTestMethod.getImplementationDistance(this.getClass()));
- assertEquals(1, protectedTestMethod.getImplementationDistance(TestClass1.class));
- assertEquals(2, protectedTestMethod.getImplementationDistance(TestClass2.class));
- assertEquals(2, protectedTestMethod.getImplementationDistance(TestClass3.class));
- assertFalse(protectedTestMethod.isOverriddenAsOf(TestClass4.class));
- assertFalse(protectedTestMethod.isOverriddenAsOf(TestClass5.class));
-
- assertTrue(VirtualMethod.compareImplementationDistance(TestClass3.class, publicTestMethod, protectedTestMethod) > 0);
- assertEquals(0, VirtualMethod.compareImplementationDistance(TestClass5.class, publicTestMethod, protectedTestMethod));
- }
-
- @SuppressWarnings("unchecked")
- public void testExceptions() {
- try {
- // cast to Class to remove generics:
- publicTestMethod.getImplementationDistance((Class) LuceneTestCase.class);
- fail("LuceneTestCase is not a subclass and can never override publicTest(String)");
- } catch (IllegalArgumentException arg) {
- // pass
- }
-
- try {
- new VirtualMethod<TestVirtualMethod>(TestVirtualMethod.class, "bogus");
- fail("Method bogus() does not exist, so IAE should be thrown");
- } catch (IllegalArgumentException arg) {
- // pass
- }
-
- try {
- new VirtualMethod<TestClass2>(TestClass2.class, "publicTest", String.class);
- fail("Method publicTest(String) is not declared in TestClass2, so IAE should be thrown");
- } catch (IllegalArgumentException arg) {
- // pass
- }
-
- try {
- // try to create a second instance of the same baseClass / method combination
- new VirtualMethod<TestVirtualMethod>(TestVirtualMethod.class, "publicTest", String.class);
- fail("Violating singleton status succeeded");
- } catch (UnsupportedOperationException arg) {
- // pass
- }
- }
-
-}