package arbitrage

import (
	"math/big"
	"testing"

	"github.com/fraktal/mev-beta/pkg/math"
)

func TestEthAmountStringPrefersDecimalSnapshot(t *testing.T) {
	ud, err := math.NewUniversalDecimal(big.NewInt(1500000000000000000), 18, "ETH")
	if err != nil {
		t.Fatalf("unexpected error creating decimal: %v", err)
	}

	got := ethAmountString(nil, ud, nil)
	if got != "1.500000" {
		t.Fatalf("expected 1.500000, got %s", got)
	}
}

func TestEthAmountStringFallsBackToWei(t *testing.T) {
	wei := big.NewInt(123450000000000000)

	got := ethAmountString(nil, nil, wei)
	if got != "0.123450" {
		t.Fatalf("expected 0.123450, got %s", got)
	}
}

func TestGweiAmountStringFormatsTwoDecimals(t *testing.T) {
	wei := big.NewInt(987654321)

	got := gweiAmountString(nil, nil, wei)
	if got != "0.99" {
		t.Fatalf("expected 0.99, got %s", got)
	}
}