cosmos-sdk/types/simulation/rand_util_test.go

65 lines
1.4 KiB
Go

package simulation_test
import (
"math/rand"
"testing"
"time"
"github.com/stretchr/testify/require"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/cosmos/cosmos-sdk/types/simulation"
)
func TestRandSubsetCoins(t *testing.T) {
t.Parallel()
tests := []struct {
name string
r *rand.Rand
coins sdk.Coins
}{
{"seed=1", rand.New(rand.NewSource(1)), mustParseCoins("100stake,2testtoken")},
{"seed=50", rand.New(rand.NewSource(50)), mustParseCoins("100stake,2testtoken")},
{"seed=99", rand.New(rand.NewSource(99)), mustParseCoins("100stake,2testtoken")},
}
for _, tt := range tests {
tt := tt
t.Run(tt.name, func(t *testing.T) {
got := simulation.RandSubsetCoins(tt.r, tt.coins)
gotStringRep := got.String()
sortedStringRep := got.Sort().String()
require.Equal(t, gotStringRep, sortedStringRep)
})
}
}
func TestRandStringOfLength(t *testing.T) {
t.Parallel()
r := rand.New(rand.NewSource(time.Now().Unix()))
tests := []struct {
name string
n int
want int
}{
{"0-size", 0, 0},
{"10-size", 10, 10},
{"1_000_000-size", 1_000_000, 1_000_000},
}
for _, tt := range tests {
tt := tt
t.Run(tt.name, func(t *testing.T) {
got := simulation.RandStringOfLength(r, tt.n)
require.Equal(t, tt.want, len(got))
})
}
}
func mustParseCoins(s string) sdk.Coins {
coins, err := sdk.ParseCoinsNormalized(s)
if err != nil {
panic(err)
}
return coins
}