ui_tests_blog_partition.groovy

def partitionTestClassNames(classNames, buckets) {
    def subArrays = []
    def bucketSize = classNames.size() / buckets
    for (int i = 0; i < buckets; i++) {
        def start = i * bucketSize
        def end = i == buckets - 1 ? classNames.size() : start + bucketSize
        subArrays += [classNames[start..<end]]
    }
    return subArrays
}