StringArrayEnumerationTest.java

package japicmp.util;

import org.junit.Test;

import java.util.NoSuchElementException;

import static org.hamcrest.CoreMatchers.is;
import static org.junit.Assert.assertThat;

public class StringArrayEnumerationTest {

	@Test(expected = NoSuchElementException.class)
	public void testEmptyArray() {
		StringArrayEnumeration sae = new StringArrayEnumeration(new String[]{});
		assertThat(sae.hasMoreElements(), is(false));
		sae.nextElement();
	}

	@Test
	public void testOneElementArray() {
		StringArrayEnumeration sae = new StringArrayEnumeration(new String[]{"1"});
		assertThat(sae.hasMoreElements(), is(true));
		assertThat(sae.nextElement(), is("1"));
		assertThat(sae.hasMoreElements(), is(false));
	}

	@Test
	public void testTwoElementsArray() {
		StringArrayEnumeration sae = new StringArrayEnumeration(new String[]{"1", "2"});
		assertThat(sae.hasMoreElements(), is(true));
		assertThat(sae.nextElement(), is("1"));
		assertThat(sae.hasMoreElements(), is(true));
		assertThat(sae.nextElement(), is("2"));
		assertThat(sae.hasMoreElements(), is(false));
	}
}