108 lines
3.7 KiB
Go
108 lines
3.7 KiB
Go
package service_test
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import (
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"math/big"
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"math/rand"
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"reflect"
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"testing"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/core"
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"github.com/ethereum/go-ethereum/core/types"
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s "github.com/ethereum/go-ethereum/statediff/service"
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"github.com/ethereum/go-ethereum/statediff/testhelpers/mocks"
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)
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func TestServiceLoop(t *testing.T) {
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testErrorInChainEventLoop(t)
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testErrorInBlockLoop(t)
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}
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var (
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eventsChannel = make(chan core.ChainEvent, 1)
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parentHeader1 = types.Header{Number: big.NewInt(rand.Int63())}
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parentHeader2 = types.Header{Number: big.NewInt(rand.Int63())}
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parentBlock1 = types.NewBlock(&parentHeader1, nil, nil, nil)
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parentBlock2 = types.NewBlock(&parentHeader2, nil, nil, nil)
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parentHash1 = parentBlock1.Hash()
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parentHash2 = parentBlock2.Hash()
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header1 = types.Header{ParentHash: parentHash1}
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header2 = types.Header{ParentHash: parentHash2}
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header3 = types.Header{ParentHash: common.HexToHash("parent hash")}
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block1 = types.NewBlock(&header1, nil, nil, nil)
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block2 = types.NewBlock(&header2, nil, nil, nil)
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block3 = types.NewBlock(&header3, nil, nil, nil)
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event1 = core.ChainEvent{Block: block1}
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event2 = core.ChainEvent{Block: block2}
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event3 = core.ChainEvent{Block: block3}
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)
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func testErrorInChainEventLoop(t *testing.T) {
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//the first chain event causes and error (in blockchain mock)
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extractor := mocks.Extractor{}
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blockChain := mocks.BlockChain{}
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service := s.StateDiffService{
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Builder: nil,
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Extractor: &extractor,
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BlockChain: &blockChain,
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}
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blockChain.SetParentBlocksToReturn([]*types.Block{parentBlock1, parentBlock2})
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blockChain.SetChainEvents([]core.ChainEvent{event1, event2, event3})
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service.Loop(eventsChannel)
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//parent and current blocks are passed to the extractor
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expectedCurrentBlocks := []types.Block{*block1, *block2}
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if !reflect.DeepEqual(extractor.CurrentBlocks, expectedCurrentBlocks) {
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t.Error("Test failure:", t.Name())
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t.Logf("Actual does not equal expected.\nactual:%+v\nexpected: %+v", extractor.CurrentBlocks, expectedCurrentBlocks)
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}
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expectedParentBlocks := []types.Block{*parentBlock1, *parentBlock2}
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if !reflect.DeepEqual(extractor.ParentBlocks, expectedParentBlocks) {
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t.Error("Test failure:", t.Name())
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t.Logf("Actual does not equal expected.\nactual:%+v\nexpected: %+v", extractor.CurrentBlocks, expectedParentBlocks)
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}
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//look up the parent block from its hash
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expectedHashes := []common.Hash{block1.ParentHash(), block2.ParentHash()}
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if !reflect.DeepEqual(blockChain.ParentHashesLookedUp, expectedHashes) {
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t.Error("Test failure:", t.Name())
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t.Logf("Actual does not equal expected.\nactual:%+v\nexpected: %+v", blockChain.ParentHashesLookedUp, expectedHashes)
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}
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}
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func testErrorInBlockLoop(t *testing.T) {
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//second block's parent block can't be found
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extractor := mocks.Extractor{}
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blockChain := mocks.BlockChain{}
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service := s.StateDiffService{
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Builder: nil,
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Extractor: &extractor,
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BlockChain: &blockChain,
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}
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blockChain.SetParentBlocksToReturn([]*types.Block{parentBlock1, nil})
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blockChain.SetChainEvents([]core.ChainEvent{event1, event2})
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service.Loop(eventsChannel)
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//only the first current block (and it's parent) are passed to the extractor
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expectedCurrentBlocks := []types.Block{*block1}
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if !reflect.DeepEqual(extractor.CurrentBlocks, expectedCurrentBlocks) {
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t.Error("Test failure:", t.Name())
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t.Logf("Actual does not equal expected.\nactual:%+v\nexpected: %+v", extractor.CurrentBlocks, expectedCurrentBlocks)
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}
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expectedParentBlocks := []types.Block{*parentBlock1}
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if !reflect.DeepEqual(extractor.ParentBlocks, expectedParentBlocks) {
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t.Error("Test failure:", t.Name())
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t.Logf("Actual does not equal expected.\nactual:%+v\nexpected: %+v", extractor.CurrentBlocks, expectedParentBlocks)
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}
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}
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