SortedListCallbackUnitTest+Test2.java

@Test public void testAdditionOfSameObjectShouldNotChangeSortedList() throws Exception {
    assertThat(fixture.sortedList().size()).isEqualTo(0);

    Article article = fixture.orderedArticleList()
        .get(Article.Utils.randomWithRange(0, fixture.orderedArticleList().size() - 1));

    fixture.sortedList().add(article);
    assertThat(fixture.callbackRecorder().insertions().size()).isEqualTo(1);

    assertThat(fixture.callbackRecorder().deletions().size()).isEqualTo(0);
    assertThat(fixture.callbackRecorder().moves().size()).isEqualTo(0);
    assertThat(fixture.callbackRecorder().changes().size()).isEqualTo(0);

    fixture.callbackRecorder().clear();

    assertThat(fixture.sortedList().size()).isEqualTo(1);
    for (int i = 0; i < Article.Utils.randomWithRange(1, 10); i++) {
      fixture.sortedList().add(article.dupe());
    }
    assertThat(fixture.sortedList().size()).isEqualTo(1);

    assertThat(fixture.callbackRecorder().insertions().size()).isEqualTo(0);
    assertThat(fixture.callbackRecorder().deletions().size()).isEqualTo(0);
    assertThat(fixture.callbackRecorder().moves().size()).isEqualTo(0);
    assertThat(fixture.callbackRecorder().changes().size()).isEqualTo(0);
}