* Verifies that the method retrieves all indices associated with an alias.
     */
    @Test
    @SuppressWarnings("unchecked")
    public void testGetIndicesForAlias_multipleIndices() throws Exception {
        final String index1 = "test-multi-index-001";
        final String index2 = "test-multi-index-002";
        final String aliasName = "test-multi-alias";