private static void assertList(String header, Locale[] fields, QualityValue[] qualities) {
Map<Locale, QualityValue> map = AcceptHeaders.getLocaleQualityValues(header);
List<Locale> expectedKeys = Arrays.asList(fields);
List<QualityValue> expectedValues = Arrays.asList(qualities);
assertEquals(expectedKeys, new ArrayList<Locale>(map.keySet()));
assertEquals(expectedValues, new ArrayList<QualityValue>(map.values()));
}
@Test
public void empty() {
assertNull(AcceptHeaders.getLocaleQualityValues(null));
assertNull(AcceptHeaders.getLocaleQualityValues(""));
assertNull(AcceptHeaders.getLocaleQualityValues(" "));
}