'Unique plugin: Ensure we ignore entries with missing fields'

def test_missing_field(self, execute_task):

    task = execute_task(u'missing_field')
    assert (len(task.rejected) == 1), u'should    reject    1    entires'
    assert (task.rejected[0][u'title'] == u'bla3'), u'should    reject    bla3'
