@Test
public void defaultStateTest() throws Exception {
Config config = ConfigGenerator.testConfig();
DBState state = new DBInitializer(config, new Metrics(config)).initialize();
Assert.assertTrue("No tables", state.tables().count() == 0);
Assert.assertEquals("No Max Snapshot Id", 0, state.snapshots().currentId());
}
@Test
public void existingStateTest() throws Exception {
Paths paths = ConfigGenerator.testPaths();
Config config = ConfigGenerator.testConfig();
FileTableWriter.Task writerTask =
new FileTableWriter.Task(
1, 1, paths, config, tuples.iterator(), tuples.size(), null, Throttle.MAX);
writerTask.run();
DBState state = new DBInitializer(config, new Metrics(config)).initialize();
Assert.assertEquals("Should be 1 table", 1, state.tables().count());
Assert.assertEquals("Should be 100 as the max snapshot id", 100, state.snapshots().currentId());
}
@Test
public void existingStateLogTest() throws Exception {
Paths paths = ConfigGenerator.testPaths();
Config config = ConfigGenerator.testConfig();
FileTableWriter.Task writerTask =
new FileTableWriter.Task(
1, 1, paths, config, tuples.iterator(), tuples.size(), null, Throttle.MAX);
writerTask.run();
CommitLogWriter log = CommitLogWriter.open(2, paths);
List<Tuple> moreTestTuples = generateMoreTestRecords(101);
for (Tuple tuple : moreTestTuples) {
log.append(tuple, false);
}
log.close();
DBState state = new DBInitializer(config, new Metrics(config)).initialize();
Assert.assertEquals("Should be 2 tables", 2, state.tables().count());
Assert.assertEquals("Should be 200 as the max snapshot id", 200, state.snapshots().currentId());
}