| /* |
| * 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.knox.gateway.shell.table; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertNotNull; |
| import static org.junit.Assert.assertTrue; |
| |
| import java.util.Collections; |
| import java.util.LinkedList; |
| import java.util.List; |
| |
| import org.junit.BeforeClass; |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.rules.ExpectedException; |
| |
| public class KnoxShellTableCallHistoryTest { |
| |
| @Rule |
| public ExpectedException expectedException = ExpectedException.none(); |
| |
| private static final List<KnoxShellTableCall> CALL_LIST = new LinkedList<>(); |
| |
| @BeforeClass |
| public static void init() { |
| CALL_LIST.add(new KnoxShellTableCall("org.apache.knox.gateway.shell.table.KnoxShellTableBuilder", "csv", false, Collections.emptyMap())); |
| CALL_LIST.add(new KnoxShellTableCall("org.apache.knox.gateway.shell.table.CSVKnoxShellTableBuilder", "withHeaders", false, Collections.emptyMap())); |
| final String csvPath = KnoxShellTableCallHistoryTest.class.getClassLoader().getResource("knoxShellTableLocationsWithZipLessThan14.csv").getPath(); |
| CALL_LIST.add(new KnoxShellTableCall("org.apache.knox.gateway.shell.table.CSVKnoxShellTableBuilder", "url", true, Collections.singletonMap("file://" + csvPath, String.class))); |
| CALL_LIST.add(new KnoxShellTableCall("org.apache.knox.gateway.shell.table.KnoxShellTable", "filter", false, Collections.emptyMap())); |
| CALL_LIST.add(new KnoxShellTableCall("org.apache.knox.gateway.shell.table.KnoxShellTableFilter", "name", false, Collections.singletonMap("ZIP", String.class))); |
| CALL_LIST.add(new KnoxShellTableCall("org.apache.knox.gateway.shell.table.KnoxShellTableFilter", "greaterThan", true, Collections.singletonMap("5", String.class))); |
| } |
| |
| @Test |
| public void shouldReturnEmptyListInCaseThereWasNoCall() throws Exception { |
| long id = 0; |
| assertTrue(KnoxShellTableCallHistory.getInstance().getCallHistory(id).isEmpty()); |
| } |
| |
| @Test |
| public void shouldReturnCallHistoryInProperOrder() throws Exception { |
| final long id = 1; |
| recordCallHistory(id, 2); |
| final List<KnoxShellTableCall> callHistory = KnoxShellTableCallHistory.getInstance().getCallHistory(id); |
| assertFalse(callHistory.isEmpty()); |
| assertEquals(CALL_LIST.get(0), callHistory.get(0)); |
| assertEquals(CALL_LIST.get(1), callHistory.get(1)); |
| } |
| |
| @Test |
| public void shouldThrowIllegalArgumentExceptionIfReplayingToInappropriateStep() { |
| final long id = 2; |
| recordCallHistory(id, 3); |
| |
| // step 2 - second call - does not produce KnoxShellTable (builderMethod=false) |
| expectedException.expect(IllegalArgumentException.class); |
| expectedException.expectMessage("It is not allowed to replay up to step 2 as this step does not produce an intance of KnoxShellTable"); |
| KnoxShellTableCallHistory.getInstance().replay(id, 2); |
| } |
| |
| @Test |
| public void shouldProduceKnoxShellTableIfReplayingToValidStep() { |
| final long id = 3; |
| recordCallHistory(id, 3); |
| |
| final KnoxShellTable table = KnoxShellTableCallHistory.getInstance().replay(id, 3); |
| assertNotNull(table); |
| assertFalse(table.headers.isEmpty()); |
| assertEquals(14, table.rows.size()); |
| assertEquals(table.values(0).get(13), "14"); // selected the first column (ZIP) where the last element - index 13 - is 14 |
| } |
| |
| @Test |
| public void shouldNotRollBackIfNoBuilderMethodRecorded() throws Exception { |
| final long id = 4; |
| recordCallHistory(id, 1); |
| |
| expectedException.expect(IllegalArgumentException.class); |
| expectedException.expectMessage("There is no valid step to be rollback to"); |
| KnoxShellTableCallHistory.getInstance().rollback(id); |
| } |
| |
| @Test |
| public void shouldNotRollBackIfOnlyOneBuilderMethodRecorded() throws Exception { |
| final long id = 5; |
| recordCallHistory(id, 3); |
| |
| expectedException.expect(IllegalArgumentException.class); |
| expectedException.expectMessage("There is no valid step to be rollback to"); |
| KnoxShellTableCallHistory.getInstance().rollback(id); |
| } |
| |
| @Test |
| public void shouldRollbackToValidPreviousStep() throws Exception { |
| long id = 6; |
| recordCallHistory(id, 6); |
| // filtered table where ZIPs are greater than "5" (in CSV everything is String) |
| final KnoxShellTable table = KnoxShellTableCallHistory.getInstance().replay(id, 6); |
| assertNotNull(table); |
| assertEquals(4, table.rows.size()); // only 4 rows with ZIP of 6, 7, 8 and 9 |
| KnoxShellTableCallHistory.getInstance().saveCalls(table.id, KnoxShellTableCallHistory.getInstance().getCallHistory(id)); // in PROD AspectJ does it for us while replaying |
| |
| // rolling back to the original table before filtering |
| table.rollback(); |
| assertNotNull(table); |
| assertEquals(14, table.rows.size()); |
| assertEquals(table.values(0).get(13), "14"); // selected the first column (ZIP) where the last element - index 13 - is 14 |
| } |
| |
| private void recordCallHistory(long id, int steps) { |
| for (int i = 0; i < steps; i++) { |
| KnoxShellTableCallHistory.getInstance().saveCall(id, CALL_LIST.get(i)); |
| } |
| } |
| |
| } |