package simulation_test

import (
	"testing"

	"github.com/stretchr/testify/require"

	sdk "github.com/cosmos/cosmos-sdk/types"

	"github.com/kava-labs/kava/x/cdp/simulation"
)

func TestShiftDec(t *testing.T) {
	tests := []struct {
		value    sdk.Dec
		shift    sdk.Int
		expected sdk.Dec
	}{
		{sdk.MustNewDecFromStr("5.5"), sdk.NewInt(1), sdk.MustNewDecFromStr("55")},
		{sdk.MustNewDecFromStr("5.5"), sdk.NewInt(-1), sdk.MustNewDecFromStr("0.55")},
		{sdk.MustNewDecFromStr("5.5"), sdk.NewInt(2), sdk.MustNewDecFromStr("550")},
		{sdk.MustNewDecFromStr("5.5"), sdk.NewInt(-2), sdk.MustNewDecFromStr("0.055")},
	}

	for _, tt := range tests {
		t.Run(tt.value.String(), func(t *testing.T) {
			require.Equal(t, tt.expected, simulation.ShiftDec(tt.value, tt.shift))
		})
	}
}
