Java tutorial
/* * The MIT License * * Copyright 2014 Jesse Glick. * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ package jenkins.model; import hudson.Util; import hudson.util.StreamTaskListener; import java.io.File; import java.io.IOException; import java.nio.charset.Charset; import java.util.Map; import java.util.TimeZone; import java.util.TreeMap; import java.util.logging.ConsoleHandler; import java.util.logging.Handler; import java.util.logging.Level; import org.apache.commons.io.FileUtils; import org.junit.Test; import static org.junit.Assert.*; import org.junit.Before; import org.junit.BeforeClass; import org.junit.Rule; import org.junit.rules.TemporaryFolder; public class RunIdMigratorTest { @Rule public TemporaryFolder tmp = new TemporaryFolder(); /** Ensures that legacy timestamps are interpreted in a predictable time zone. */ @BeforeClass public static void timezone() { TimeZone.setDefault(TimeZone.getTimeZone("EST")); } @BeforeClass public static void logging() { RunIdMigrator.LOGGER.setLevel(Level.ALL); Handler handler = new ConsoleHandler(); handler.setLevel(Level.ALL); RunIdMigrator.LOGGER.addHandler(handler); } private RunIdMigrator migrator; private File dir; @Before public void init() { migrator = new RunIdMigrator(); dir = tmp.getRoot(); } @Test public void newJob() throws Exception { migrator.created(dir); assertEquals("{legacyIds=''}", summarize()); assertEquals(0, migrator.findNumber("whatever")); migrator.delete(dir, "1"); migrator = new RunIdMigrator(); assertFalse(migrator.migrate(dir, null)); assertEquals("{legacyIds=''}", summarize()); } @Test public void legacy() throws Exception { write("2014-01-02_03-04-05/build.xml", "<?xml version='1.0' encoding='UTF-8'?>\n<run>\n <stuff>ok</stuff>\n <number>99</number>\n <otherstuff>ok</otherstuff>\n</run>"); link("99", "2014-01-02_03-04-05"); link("lastFailedBuild", "-1"); link("lastSuccessfulBuild", "99"); assertEquals( "{2014-01-02_03-04-05={build.xml='<?xml version='1.0' encoding='UTF-8'?>\n<run>\n <stuff>ok</stuff>\n <number>99</number>\n <otherstuff>ok</otherstuff>\n</run>'}, 99=2014-01-02_03-04-05, lastFailedBuild=-1, lastSuccessfulBuild=99}", summarize()); assertTrue(migrator.migrate(dir, null)); assertEquals( "{99={build.xml='<?xml version='1.0' encoding='UTF-8'?>\n<run>\n <stuff>ok</stuff>\n <id>2014-01-02_03-04-05</id>\n <timestamp>1388649845000</timestamp>\n <otherstuff>ok</otherstuff>\n</run>'}, lastFailedBuild=-1, lastSuccessfulBuild=99, legacyIds='2014-01-02_03-04-05 99\n'}", summarize()); assertEquals(99, migrator.findNumber("2014-01-02_03-04-05")); migrator = new RunIdMigrator(); assertFalse(migrator.migrate(dir, null)); assertEquals(99, migrator.findNumber("2014-01-02_03-04-05")); migrator.delete(dir, "2014-01-02_03-04-05"); FileUtils.deleteDirectory(new File(dir, "99")); new File(dir, "lastSuccessfulBuild").delete(); assertEquals("{lastFailedBuild=-1, legacyIds=''}", summarize()); } @Test public void reRunMigration() throws Exception { write("2014-01-02_03-04-04/build.xml", "<run>\n <number>98</number>\n</run>"); link("98", "2014-01-02_03-04-04"); write("99/build.xml", "<?xml version='1.0' encoding='UTF-8'?>\n<run>\n <stuff>ok</stuff>\n <timestamp>1388649845000</timestamp>\n <otherstuff>ok</otherstuff>\n</run>"); link("lastFailedBuild", "-1"); link("lastSuccessfulBuild", "99"); assertEquals( "{2014-01-02_03-04-04={build.xml='<run>\n <number>98</number>\n</run>'}, 98=2014-01-02_03-04-04, 99={build.xml='<?xml version='1.0' encoding='UTF-8'?>\n<run>\n <stuff>ok</stuff>\n <timestamp>1388649845000</timestamp>\n <otherstuff>ok</otherstuff>\n</run>'}, lastFailedBuild=-1, lastSuccessfulBuild=99}", summarize()); assertTrue(migrator.migrate(dir, null)); assertEquals( "{98={build.xml='<run>\n <id>2014-01-02_03-04-04</id>\n <timestamp>1388649844000</timestamp>\n</run>'}, 99={build.xml='<?xml version='1.0' encoding='UTF-8'?>\n<run>\n <stuff>ok</stuff>\n <timestamp>1388649845000</timestamp>\n <otherstuff>ok</otherstuff>\n</run>'}, lastFailedBuild=-1, lastSuccessfulBuild=99, legacyIds='2014-01-02_03-04-04 98\n'}", summarize()); } @Test public void reverseImmediately() throws Exception { File root = dir; dir = new File(dir, "jobs/somefolder/jobs/someproject/promotions/OK/builds"); write("99/build.xml", "<?xml version='1.0' encoding='UTF-8'?>\n<run>\n <stuff>ok</stuff>\n <id>2014-01-02_03-04-05</id>\n <timestamp>1388649845000</timestamp>\n <otherstuff>ok</otherstuff>\n</run>"); link("lastFailedBuild", "-1"); link("lastSuccessfulBuild", "99"); write("legacyIds", "2014-01-02_03-04-05 99\n"); assertEquals( "{99={build.xml='<?xml version='1.0' encoding='UTF-8'?>\n<run>\n <stuff>ok</stuff>\n <id>2014-01-02_03-04-05</id>\n <timestamp>1388649845000</timestamp>\n <otherstuff>ok</otherstuff>\n</run>'}, lastFailedBuild=-1, lastSuccessfulBuild=99, legacyIds='2014-01-02_03-04-05 99\n'}", summarize()); RunIdMigrator.main(root.getAbsolutePath()); assertEquals( "{2014-01-02_03-04-05={build.xml='<?xml version='1.0' encoding='UTF-8'?>\n<run>\n <stuff>ok</stuff>\n <number>99</number>\n <otherstuff>ok</otherstuff>\n</run>'}, 99=2014-01-02_03-04-05, lastFailedBuild=-1, lastSuccessfulBuild=99}", summarize()); } @Test public void reverseAfterNewBuilds() throws Exception { File root = dir; dir = new File(dir, "jobs/someproject/modules/test$test/builds"); write("1/build.xml", "<?xml version='1.0' encoding='UTF-8'?>\n<run>\n <stuff>ok</stuff>\n <timestamp>1388649845000</timestamp>\n <otherstuff>ok</otherstuff>\n</run>"); write("legacyIds", ""); assertEquals( "{1={build.xml='<?xml version='1.0' encoding='UTF-8'?>\n<run>\n <stuff>ok</stuff>\n <timestamp>1388649845000</timestamp>\n <otherstuff>ok</otherstuff>\n</run>'}, legacyIds=''}", summarize()); RunIdMigrator.main(root.getAbsolutePath()); assertEquals( "{1=2014-01-02_03-04-05, 2014-01-02_03-04-05={build.xml='<?xml version='1.0' encoding='UTF-8'?>\n<run>\n <stuff>ok</stuff>\n <number>1</number>\n <otherstuff>ok</otherstuff>\n</run>'}}", summarize()); } @Test public void reverseMatrixAfterNewBuilds() throws Exception { File root = dir; dir = new File(dir, "jobs/someproject/Environment=prod/builds"); write("1/build.xml", "<?xml version='1.0' encoding='UTF-8'?>\n<run>\n <stuff>ok</stuff>\n <timestamp>1388649845000</timestamp>\n <otherstuff>ok</otherstuff>\n</run>"); write("legacyIds", ""); assertEquals( "{1={build.xml='<?xml version='1.0' encoding='UTF-8'?>\n<run>\n <stuff>ok</stuff>\n <timestamp>1388649845000</timestamp>\n <otherstuff>ok</otherstuff>\n</run>'}, legacyIds=''}", summarize()); RunIdMigrator.main(root.getAbsolutePath()); assertEquals( "{1=2014-01-02_03-04-05, 2014-01-02_03-04-05={build.xml='<?xml version='1.0' encoding='UTF-8'?>\n<run>\n <stuff>ok</stuff>\n <number>1</number>\n <otherstuff>ok</otherstuff>\n</run>'}}", summarize()); } @Test public void reverseMavenAfterNewBuilds() throws Exception { File root = dir; dir = new File(dir, "jobs/someproject/test$test/builds"); write("1/build.xml", "<?xml version='1.0' encoding='UTF-8'?>\n<run>\n <stuff>ok</stuff>\n <timestamp>1388649845000</timestamp>\n <otherstuff>ok</otherstuff>\n</run>"); write("legacyIds", ""); assertEquals( "{1={build.xml='<?xml version='1.0' encoding='UTF-8'?>\n<run>\n <stuff>ok</stuff>\n <timestamp>1388649845000</timestamp>\n <otherstuff>ok</otherstuff>\n</run>'}, legacyIds=''}", summarize()); RunIdMigrator.main(root.getAbsolutePath()); assertEquals( "{1=2014-01-02_03-04-05, 2014-01-02_03-04-05={build.xml='<?xml version='1.0' encoding='UTF-8'?>\n<run>\n <stuff>ok</stuff>\n <number>1</number>\n <otherstuff>ok</otherstuff>\n</run>'}}", summarize()); } // TODO test sane recovery from various error conditions private void write(String file, String text) throws Exception { FileUtils.write(new File(dir, file), text); } private void link(String symlink, String dest) throws Exception { Util.createSymlink(dir, dest, symlink, new StreamTaskListener(System.out, Charset.defaultCharset())); } private String summarize() throws Exception { return summarize(dir); } private static String summarize(File dir) throws Exception { File[] kids = dir.listFiles(); Map<String, String> m = new TreeMap<String, String>(); for (File kid : kids) { String notation; String symlink = Util.resolveSymlink(kid); if (symlink != null) { notation = "" + symlink; } else if (kid.isFile()) { notation = "'" + FileUtils.readFileToString(kid) + "'"; } else if (kid.isDirectory()) { notation = summarize(kid); } else { notation = "?"; } m.put(kid.getName(), notation); } return m.toString(); } @Test public void move() throws Exception { File src = tmp.newFile(); File dest = new File(tmp.getRoot(), "dest"); RunIdMigrator.move(src, dest); File dest2 = tmp.newFile(); try { RunIdMigrator.move(dest, dest2); fail(); } catch (IOException x) { System.err.println("Got expected move exception: " + x); } } }