verifies idgen ability to increase identifier for seed beyond initial padding

gistfile1.java

@Test
public void getIdentifierForSeed_shouldAutomaticallyIncreaseLengthOfIdentifierBeyondPaddedFirstIdentifierBaseIfNoLengthIsProvided() throws Exception {
	SequentialIdentifierGenerator generator = new SequentialIdentifierGenerator();
	generator.setFirstIdentifierBase("00");
	generator.setBaseCharacterSet("0123456789");

	assertThat(generator.getIdentifierForSeed(1), is("01"));
	assertThat(generator.getIdentifierForSeed(100), is("100"));
}