@Test
void sellingCompleted() {

    var investment = MockInvestmentBuilder.fresh()
        .build();
    var e = EventFactory.sellingCompleted(singleton(investment), mockPortfolioOverview());
    assertSoftly(softly -> {
        softly.assertThat(e.getInvestments())
            .containsExactly(investment);
        softly.assertThat(e.getPortfolioOverview())
            .isNotNull();
    });
}