@Test
public void shouldReturnWithProperValueForVersionInformation() {

    when(client.sendGetterRequest(VERSION_INFO_URL)).thenReturn(Optional.of(VERSION_INFO_JSON_STRING));
    String result = wilmaApplication.getVersionInformation();
    verify(client, never()).sendSetterRequest(anyString());
    Assert.assertTrue("Wilma Version Information content is wrong.", VERSION_INFO_JSON_STRING.contains(result));
}