test.groovy

    void "test filter with find on name"() {
        setup:
        new Conference(
                name: 'test',
                startdate: new Date()
        ).save(flush: true)

        expect:
        service.filterConferences(new FilterCommand(name: name)).size() == expected

        where:
        name     || expected
        "te"     || 1
        "test"   || 1
        "noname" || 0
    }