@Test public void ofStringToStringMap() { final Map<String, String> map = new HashMap<>(); map.put("de", "Jacken"); map.put("en", "Jackets"); map.put("it", "Giacche"); final LocalizedString actual = LocalizedString.ofStringToStringMap(map); final LocalizedString expected = LocalizedString .of(Locale.GERMAN, "Jacken") .plus(Locale.ENGLISH, "Jackets") .plus(Locale.ITALIAN, "Giacche"); assertThat(actual).isEqualTo(expected); } }