modCacheDir    = flag.String("zipsumcache", "", "module cache to use instead of temp directory")
	shardCount     = flag.Int("zipsumshardcount", 1, "number of shards to divide TestZipSums into")
	shardIndex     = flag.Int("zipsumshard", 0, "index of TestZipSums shard to test (0 <= zipsumshard < zipsumshardcount)")
)

const zipSumsPath = "testdata/zip_sums.csv"

type zipSumTest struct {
	m                     module.Version