Using Spock

https://dzone.com/articles/spock-data-driven-testing

@Unroll
def '#wc should return getlasterror document #commandDocument'() {
    expect:
    wc.asDocument() == commandDocument;

    where:
    wc                                | commandDocument
    WriteConcern.UNACKNOWLEDGED       | ['getlasterror': 0]
    WriteConcern.ACKNOWLEDGED         | ['getlasterror': 1]
    WriteConcern.REPLICA_ACKNOWLEDGED | ['getlasterror': 1, 'w': 2]
    WriteConcern.JOURNALED            | ['getlasterror': 1, 'j': true]
    WriteConcern.FSYNCED              | ['getlasterror': 1, 'fsync': true]
    new WriteConcern('majority')      | ['getlasterror': 1, 'w': 'majority']
    new WriteConcern(1, 100)          | ['getlasterror': 1, 'wtimeout': 100]
}

all the lines under where: get run, regardless of whether the test before it passes or fails. This basically is seven different tests, but takes up the same space as one.

@Unroll
def 'should generate index name #indexName for #index'() {
    expect:
    index.getName() == indexName;

    where:
    index                                              | indexName
    new Index('x')                                     | 'x_1'
    new Index('x', OrderBy.ASC)                        | 'x_1'
    new Index('x', OrderBy.DESC)                       | 'x_-1'
    new Index(new Index.GeoKey('x'))                   | 'x_2d'

    new Index(new Index.OrderedKey('x', OrderBy.ASC),
              new Index.OrderedKey('y', OrderBy.ASC),
              new Index.OrderedKey('a', OrderBy.ASC))  | 'x_1_y_1_a_1'

    new Index(new Index.GeoKey('x'),
              new Index.OrderedKey('y', OrderBy.DESC)) | 'x_2d_y_-1'

}

http://hamletdarcy.blogspot.com.es/2009/05/new-power-assertions-in-groovy.html
http://aruizca.com/integrated-vs-functional-testing-how-to-test-rest-apis-in-grails-using-spock/