@BeforeEach
    public void setUp() {
        execution = new Execution(new Chain<Searcher>(new InputCheckingSearcher(MetricReceiver.nullImplementation)),
                                  Execution.Context.createContextStub());
    }
Functional test for InputCheckingSearcher.

@author Steinar Knutsen
container-search/src/test/java/com/yahoo/search/searchers/test/InputCheckingSearcherTestCase.java