@Test public void copyReturnsSameMappings() { AnalyticsContext copy = analyticsContext.unmodifiableCopy(); assertThat(copy) .hasSameSizeAs(analyticsContext) .isNotSameAs(analyticsContext) .isEqualTo(analyticsContext); for (Map.Entry<String, Object> entry : analyticsContext.entrySet()) { assertThat(copy).contains(MapEntry.entry(entry.getKey(), entry.getValue())); } }