| /** |
| * 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. |
| */ |
| package org.apache.hadoop.hdfs.protocol; |
| |
| import org.apache.hadoop.io.erasurecode.ECSchema; |
| import org.apache.hadoop.test.GenericTestUtils; |
| import org.junit.Test; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertNotEquals; |
| import static org.junit.Assert.fail; |
| |
| /** |
| * Test ErasureCodingPolicy. |
| */ |
| public class TestErasureCodingPolicy { |
| |
| private static final ECSchema SCHEMA_1 = new ECSchema("one", 1, 2, null); |
| private static final ECSchema SCHEMA_2 = new ECSchema("two", 1, 2, null); |
| |
| @Test |
| public void testInvalid() { |
| try { |
| new ErasureCodingPolicy(null, SCHEMA_1, 123, (byte) -1); |
| fail("Instantiated invalid ErasureCodingPolicy"); |
| } catch (NullPointerException e) { |
| } |
| try { |
| new ErasureCodingPolicy("policy", null, 123, (byte) -1); |
| fail("Instantiated invalid ErasureCodingPolicy"); |
| } catch (NullPointerException e) { |
| } |
| try { |
| new ErasureCodingPolicy("policy", SCHEMA_1, -1, (byte) -1); |
| fail("Instantiated invalid ErasureCodingPolicy"); |
| } catch (IllegalArgumentException e) { |
| GenericTestUtils.assertExceptionContains("cellSize", e); |
| } |
| try { |
| new ErasureCodingPolicy(null, 1024, (byte) -1); |
| fail("Instantiated invalid ErasureCodingPolicy"); |
| } catch (NullPointerException e) { |
| } |
| try { |
| new ErasureCodingPolicy(SCHEMA_1, -1, (byte) -1); |
| fail("Instantiated invalid ErasureCodingPolicy"); |
| } catch (IllegalArgumentException e) { |
| GenericTestUtils.assertExceptionContains("cellSize", e); |
| } |
| try { |
| new ErasureCodingPolicy(null, 1024); |
| fail("Instantiated invalid ErasureCodingPolicy"); |
| } catch (NullPointerException e) { |
| } |
| try { |
| new ErasureCodingPolicy(SCHEMA_1, -1); |
| fail("Instantiated invalid ErasureCodingPolicy"); |
| } catch (IllegalArgumentException e) { |
| GenericTestUtils.assertExceptionContains("cellSize", e); |
| } |
| } |
| |
| @Test |
| public void testEqualsAndHashCode() { |
| ErasureCodingPolicy[] policies = new ErasureCodingPolicy[]{ |
| new ErasureCodingPolicy("one", SCHEMA_1, 1024, (byte) 1), |
| new ErasureCodingPolicy("two", SCHEMA_1, 1024, (byte) 1), |
| new ErasureCodingPolicy("one", SCHEMA_2, 1024, (byte) 1), |
| new ErasureCodingPolicy("one", SCHEMA_1, 2048, (byte) 1), |
| new ErasureCodingPolicy("one", SCHEMA_1, 1024, (byte) 3), |
| }; |
| |
| for (int i = 0; i < policies.length; i++) { |
| final ErasureCodingPolicy ei = policies[i]; |
| // Check identity |
| ErasureCodingPolicy temp = new ErasureCodingPolicy(ei.getName(), ei |
| .getSchema(), ei.getCellSize(), ei.getId()); |
| assertEquals(ei, temp); |
| assertEquals(ei.hashCode(), temp.hashCode()); |
| // Check against other policies |
| for (int j = 0; j < policies.length; j++) { |
| final ErasureCodingPolicy ej = policies[j]; |
| if (i == j) { |
| assertEquals(ei, ej); |
| assertEquals(ei.hashCode(), ej.hashCode()); |
| } else { |
| assertNotEquals(ei, ej); |
| assertNotEquals(ei, ej.hashCode()); |
| } |
| } |
| } |
| } |
| } |