erigon-pulse/cmd/ef-tests-cl/sanity.go

package main

import (
	"fmt"
	"os"

	"github.com/ledgerwatch/erigon/cl/clparams"
	"github.com/ledgerwatch/erigon/cmd/erigon-cl/core/transition"
)

func testSanityFunction() error {
	testState, err := decodeStateFromFile("pre.ssz_snappy")
	if err != nil {
		return err
	}
	var expectedError bool
	expectedState, err := decodeStateFromFile("post.ssz_snappy")
	if os.IsNotExist(err) {
		expectedError = true
		err = nil
	}
	if err != nil {
		return err
	}
	blocks, err := testBlocks()
	if err != nil {
		return err
	}
	transistor := transition.New(testState, &clparams.MainnetBeaconConfig, nil, false)
	for _, block := range blocks {
		err := transistor.TransitionState(block)
		if expectedError && err == nil {
			return fmt.Errorf("expected error")
		}
		if err != nil {
			if expectedError {
				return nil
			}
			return err
		}

	}
	expectedRoot, err := expectedState.HashSSZ()
	if err != nil {
		return err
	}
	haveRoot, err := testState.HashSSZ()
	if err != nil {
		return err
	}
	if haveRoot != expectedRoot {
		return fmt.Errorf("mismatching state roots.")
	}
	return nil
}