You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: hash_test.go
    path of file: ./repos/cosmos-sdk/types/address
    
    the code of the file until where you have to start completion: package address

import (
	"crypto/sha256"
	"testing"

	"github.com/cometbft/cometbft/crypto/tmhash"
	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/suite"
)

func TestAddressSuite(t *testing.T) {
	suite.Run(t, new(AddressSuite))
}

type AddressSuite struct{ suite.Suite }

func (suite *Addr
    
func (suite *AddressSuite) TestModule() {
	assert := suite.Assert()
	modName, key := "myModule", []byte{1, 2}

	addrLegacy := Module(modName)
	assert.Equal(tmhash.SumTruncated([]byte(modName)), addrLegacy,
		"when no derivation keys, we fall back to the legacy module address using sha256 of the module name")

	addr := Module(modName, key)
	assert.Len(addr, Len, "must have correct address length")
	assert.NotEqual(addrLegacy, addr,
		"when derivation key is specified, it must generate non legacy module address")

	addr2 := Module("myModule2", key)
	assert.NotEqual(addr, addr2, "changing module name must change address")

	k1 := []byte{1, 2, 3}
	addr3 := Module(modName, k1)
	assert.NotEqual(addr, addr3, "changing key must change address")
	assert.NotEqual(addr2, addr3, "changing key must change address")

	addr4 := Module(modName, k1, k1)
	assert.Equal(Derive(addr3, k1), addr4)

	k2 := []byte{0, 0, 7}
	addr5 := Module(modName, k1, k1, k2)
	assert.Equal(Derive(addr4, k2), addr5)
}