44 lines
1.3 KiB
Java
44 lines
1.3 KiB
Java
package iterator;
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import org.junit.Test;
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import java.util.Iterator;
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import java.util.NoSuchElementException;
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import static org.junit.Assert.assertEquals;
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import static org.junit.Assert.assertFalse;
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import static org.junit.Assert.assertThrows;
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import static org.junit.Assert.assertTrue;
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public class Array2dIteratorTest {
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@Test
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public void testArray2dIterator() {
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final String[][] array = {{}, {"foo", "bar"}, {"baz"}, {}};
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final Iterator<String> it = new Array2dIterator<>(array);
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assertTrue(it.hasNext());
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assertEquals("foo", it.next());
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assertTrue(it.hasNext());
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assertEquals("bar", it.next());
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assertTrue(it.hasNext());
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assertEquals("baz", it.next());
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assertFalse(it.hasNext());
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assertThrows(NoSuchElementException.class, it::next);
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}
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@Test
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public void testArray2dIteratorOnlyEmpty() {
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final String[][] array = {{}, {}, {}};
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final Iterator<String> it = new Array2dIterator<>(array);
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assertFalse(it.hasNext());
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assertThrows(NoSuchElementException.class, it::next);
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}
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@Test
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public void testArray2dIteratorEmpty() {
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final String[][] array = {};
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final Iterator<String> it = new Array2dIterator<>(array);
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assertFalse(it.hasNext());
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assertThrows(NoSuchElementException.class, it::next);
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}
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}
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