IndexTest.java

@Test
public void shouldGenerateIndexNameForSimpleKey() {
    final Index index = new Index("x");
    assertEquals("x_1", index.getName());
}

@Test
public void shouldGenerateIndexNameForKeyOrderedAscending() {
    final Index index = new Index("x", OrderBy.ASC);
    assertEquals("x_1", index.getName());
}

@Test
public void shouldGenerateIndexNameForKeyOrderedDescending() {
    final Index index = new Index("x", OrderBy.DESC);
    assertEquals("x_-1", index.getName());
}

@Test
public void shouldGenerateGeoIndexName() {
    final Index index = new Index(new Index.GeoKey("x"));
    assertEquals("x_2d", index.getName());
}

@Test
public void shouldCompoundIndexName() {
    final Index index = new Index(new Index.OrderedKey("x", OrderBy.ASC),
                                  new Index.OrderedKey("y", OrderBy.ASC),
                                  new Index.OrderedKey("a", OrderBy.ASC));
    assertEquals("x_1_y_1_a_1", index.getName());

}

@Test
public void shouldGenerateGeoAndSortedCompoundIndexName() {
    final Index index = new Index(new Index.GeoKey("x"),
                                  new Index.OrderedKey("y", OrderBy.DESC));
    assertEquals("x_2d_y_-1", index.getName());

}