@Test
public void testGetMessageFormat03() throws Exception {

    // 前処理
    DataSourceMessageSource_DataSourceMessageSourceStub19 ds = new DataSourceMessageSource_DataSourceMessageSourceStub19();
    String code = "code01";
    Locale locale = new Locale("ja", "JP", "");
    MessageFormat mf = null;
    Map<Locale, MessageFormat> map = new HashMap<Locale, MessageFormat>();
    map.put(locale, mf);
    ds.cachedMessageFormats.put(code, map);
    // テスト実施
    MessageFormat result = ds.getMessageFormat(code, locale);
    // 判定
    assertNull(result);
    assertTrue(ds.isRead_A1);
}