private void containerReturnsPropertyWithFieldNullable(boolean nullable) {
ColumnProperty property =
new ColumnProperty("test", true, false, nullable, false, "1", String.class);
when(containerMock.getItem(1)).thenReturn(itemMock);
when(itemMock.getItemProperty("test")).thenReturn(property);
when(containerFieldMock.isRequired()).thenReturn(!nullable);
}