@Test
public void testMergeNullArrays() {
Object[] nullList = null;
Object[] notNullList = {};
mExpectedException.expectMessage("Both arrays cannot be null");
mExpectedException.expect(NullPointerException.class);
mMerger.merge(nullList, nullList);
mMerger.merge(nullList, notNullList);
mMerger.merge(notNullList, nullList);
}
@Test
public void testMerge() {
Integer[] firstSortedArray = {1, 3, 5, 7, 8, 100};
Integer[] secondSortedArray = {0, 2, 4, 6, 9, 10};
Integer[] expectedMergedArray = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 100};
Object[] actualMergedList = mMerger.merge(firstSortedArray, secondSortedArray);
assertTrue(Arrays.equals(expectedMergedArray, actualMergedList));
}