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package claim
import (
"context"
"errors"
"testing"
"github.com/stretchr/testify/require"
"github.com/ethereum/go-ethereum/log"
"github.com/ethereum-optimism/optimism/op-service/eth"
"github.com/ethereum-optimism/optimism/op-service/testlog"
)
type mockL2 struct {
safeL2 eth.L2BlockRef
safeL2Err error
outputRoot eth.Bytes32
outputRootErr error
requestedOutputRoot uint64
}
func (m *mockL2) L2BlockRefByLabel(ctx context.Context, label eth.BlockLabel) (eth.L2BlockRef, error) {
if label != eth.Safe {
panic("unexpected usage")
}
if m.safeL2Err != nil {
return eth.L2BlockRef{}, m.safeL2Err
}
return m.safeL2, nil
}
func (m *mockL2) L2OutputRoot(u uint64) (eth.Bytes32, error) {
m.requestedOutputRoot = u
if m.outputRootErr != nil {
return eth.Bytes32{}, m.outputRootErr
}
return m.outputRoot, nil
}
var _ L2Source = (*mockL2)(nil)
func TestValidateClaim(t *testing.T) {
t.Run("Valid", func(t *testing.T) {
expected := eth.Bytes32{0x11}
l2 := &mockL2{
outputRoot: expected,
}
logger := testlog.Logger(t, log.LevelError)
err := ValidateClaim(logger, uint64(0), expected, l2)
require.NoError(t, err)
})
t.Run("Valid-PriorToSafeHead", func(t *testing.T) {
expected := eth.Bytes32{0x11}
l2 := &mockL2{
outputRoot: expected,
safeL2: eth.L2BlockRef{
Number: 10,
},
}
logger := testlog.Logger(t, log.LevelError)
err := ValidateClaim(logger, uint64(20), expected, l2)
require.NoError(t, err)
require.Equal(t, uint64(10), l2.requestedOutputRoot)
})
t.Run("Invalid", func(t *testing.T) {
l2 := &mockL2{
outputRoot: eth.Bytes32{0x22},
}
logger := testlog.Logger(t, log.LevelError)
err := ValidateClaim(logger, uint64(0), eth.Bytes32{0x11}, l2)
require.ErrorIs(t, err, ErrClaimNotValid)
})
t.Run("Invalid-PriorToSafeHead", func(t *testing.T) {
l2 := &mockL2{
outputRoot: eth.Bytes32{0x22},
safeL2: eth.L2BlockRef{Number: 10},
}
logger := testlog.Logger(t, log.LevelError)
err := ValidateClaim(logger, uint64(20), eth.Bytes32{0x55}, l2)
require.ErrorIs(t, err, ErrClaimNotValid)
require.Equal(t, uint64(10), l2.requestedOutputRoot)
})
t.Run("Error-safe-head", func(t *testing.T) {
expectedErr := errors.New("boom")
l2 := &mockL2{
outputRoot: eth.Bytes32{0x11},
safeL2: eth.L2BlockRef{Number: 10},
safeL2Err: expectedErr,
}
logger := testlog.Logger(t, log.LevelError)
err := ValidateClaim(logger, uint64(0), eth.Bytes32{0x11}, l2)
require.ErrorIs(t, err, expectedErr)
})
t.Run("Error-output-root", func(t *testing.T) {
expectedErr := errors.New("boom")
l2 := &mockL2{
outputRoot: eth.Bytes32{0x11},
outputRootErr: expectedErr,
safeL2: eth.L2BlockRef{Number: 10},
}
logger := testlog.Logger(t, log.LevelError)
err := ValidateClaim(logger, uint64(0), eth.Bytes32{0x11}, l2)
require.ErrorIs(t, err, expectedErr)
})
}