prysm-pulse/beacon-chain/state/stategen/service_test.go

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package stategen
import (
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"context"
"testing"
ethpb "github.com/prysmaticlabs/ethereumapis/eth/v1alpha1"
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testDB "github.com/prysmaticlabs/prysm/beacon-chain/db/testing"
"github.com/prysmaticlabs/prysm/shared/params"
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"github.com/prysmaticlabs/prysm/shared/testutil"
"github.com/prysmaticlabs/prysm/shared/testutil/assert"
"github.com/prysmaticlabs/prysm/shared/testutil/require"
)
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func TestResume(t *testing.T) {
ctx := context.Background()
beaconDB := testDB.SetupDB(t)
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service := New(beaconDB)
b := testutil.NewBeaconBlock()
require.NoError(t, service.beaconDB.SaveBlock(ctx, b))
root, err := b.Block.HashTreeRoot()
require.NoError(t, err)
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beaconState, _ := testutil.DeterministicGenesisState(t, 32)
require.NoError(t, beaconState.SetSlot(params.BeaconConfig().SlotsPerEpoch))
require.NoError(t, service.beaconDB.SaveState(ctx, beaconState, root))
require.NoError(t, service.beaconDB.SaveGenesisBlockRoot(ctx, root))
require.NoError(t, service.beaconDB.SaveFinalizedCheckpoint(ctx, &ethpb.Checkpoint{Root: root[:]}))
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resumeState, err := service.Resume(ctx)
require.NoError(t, err)
require.DeepSSZEqual(t, beaconState.InnerStateUnsafe(), resumeState.InnerStateUnsafe())
assert.Equal(t, params.BeaconConfig().SlotsPerEpoch, service.finalizedInfo.slot, "Did not get watned slot")
assert.Equal(t, service.finalizedInfo.root, root, "Did not get wanted root")
assert.NotNil(t, service.finalizedState(), "Wanted a non nil finalized state")
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}