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tests: add ethash difficulty tests (ethereum#15191)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,87 @@ | ||
| // Copyright 2017 The go-ethereum Authors | ||
| // This file is part of the go-ethereum library. | ||
| // | ||
| // The go-ethereum library is free software: you can redistribute it and/or modify | ||
| // it under the terms of the GNU Lesser General Public License as published by | ||
| // the Free Software Foundation, either version 3 of the License, or | ||
| // (at your option) any later version. | ||
| // | ||
| // The go-ethereum library is distributed in the hope that it will be useful, | ||
| // but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| // GNU Lesser General Public License for more details. | ||
| // | ||
| // You should have received a copy of the GNU Lesser General Public License | ||
| // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>. | ||
| // | ||
|
|
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| package tests | ||
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|
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| import ( | ||
| "testing" | ||
|
|
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| "math/big" | ||
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| "github.com/ethereum/go-ethereum/common" | ||
| "github.com/ethereum/go-ethereum/params" | ||
| ) | ||
|
|
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| var ( | ||
| mainnetChainConfig = params.ChainConfig{ | ||
| ChainId: big.NewInt(1), | ||
| HomesteadBlock: big.NewInt(1150000), | ||
| DAOForkBlock: big.NewInt(1920000), | ||
| DAOForkSupport: true, | ||
| EIP150Block: big.NewInt(2463000), | ||
| EIP150Hash: common.HexToHash("0x2086799aeebeae135c246c65021c82b4e15a2c451340993aacfd2751886514f0"), | ||
| EIP155Block: big.NewInt(2675000), | ||
| EIP158Block: big.NewInt(2675000), | ||
| ByzantiumBlock: big.NewInt(4370000), | ||
| } | ||
| ) | ||
|
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| func TestDifficulty(t *testing.T) { | ||
| t.Parallel() | ||
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| dt := new(testMatcher) | ||
| // Not difficulty-tests | ||
| dt.skipLoad("hexencodetest.*") | ||
| dt.skipLoad("crypto.*") | ||
| dt.skipLoad("blockgenesistest\\.json") | ||
| dt.skipLoad("genesishashestest\\.json") | ||
| dt.skipLoad("keyaddrtest\\.json") | ||
| dt.skipLoad("txtest\\.json") | ||
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| // files are 2 years old, contains strange values | ||
| dt.skipLoad("difficultyCustomHomestead\\.json") | ||
| dt.skipLoad("difficultyMorden\\.json") | ||
| dt.skipLoad("difficultyOlimpic\\.json") | ||
|
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| dt.config("Ropsten", *params.TestnetChainConfig) | ||
| dt.config("Morden", *params.TestnetChainConfig) | ||
| dt.config("Frontier", params.ChainConfig{}) | ||
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| dt.config("Homestead", params.ChainConfig{ | ||
| HomesteadBlock: big.NewInt(0), | ||
| }) | ||
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| dt.config("Byzantium", params.ChainConfig{ | ||
| ByzantiumBlock: big.NewInt(0), | ||
| }) | ||
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| dt.config("Frontier", *params.TestnetChainConfig) | ||
| dt.config("MainNetwork", mainnetChainConfig) | ||
| dt.config("CustomMainNetwork", mainnetChainConfig) | ||
| dt.config("difficulty.json", mainnetChainConfig) | ||
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| dt.walk(t, difficultyTestDir, func(t *testing.T, name string, test *DifficultyTest) { | ||
| cfg := dt.findConfig(name) | ||
| if test.ParentDifficulty.Cmp(params.MinimumDifficulty) < 0 { | ||
| t.Skip("difficulty below minimum") | ||
| return | ||
| } | ||
| if err := dt.checkFailure(t, name, test.Run(cfg)); err != nil { | ||
| t.Error(err) | ||
| } | ||
| }) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,70 @@ | ||
| // Copyright 2017 The go-ethereum Authors | ||
| // This file is part of the go-ethereum library. | ||
| // | ||
| // The go-ethereum library is free software: you can redistribute it and/or modify | ||
| // it under the terms of the GNU Lesser General Public License as published by | ||
| // the Free Software Foundation, either version 3 of the License, or | ||
| // (at your option) any later version. | ||
| // | ||
| // The go-ethereum library is distributed in the hope that it will be useful, | ||
| // but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| // GNU Lesser General Public License for more details. | ||
| // | ||
| // You should have received a copy of the GNU Lesser General Public License | ||
| // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>. | ||
| // | ||
|
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| package tests | ||
|
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| import ( | ||
| "fmt" | ||
| "math/big" | ||
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| "github.com/ethereum/go-ethereum/common" | ||
| "github.com/ethereum/go-ethereum/common/math" | ||
| "github.com/ethereum/go-ethereum/consensus/ethash" | ||
| "github.com/ethereum/go-ethereum/core/types" | ||
| "github.com/ethereum/go-ethereum/params" | ||
| ) | ||
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| //go:generate gencodec -type DifficultyTest -field-override difficultyTestMarshaling -out gen_difficultytest.go | ||
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| type DifficultyTest struct { | ||
| ParentTimestamp *big.Int `json:"parentTimestamp"` | ||
| ParentDifficulty *big.Int `json:"parentDifficulty"` | ||
| UncleHash common.Hash `json:"parentUncles"` | ||
| CurrentTimestamp *big.Int `json:"currentTimestamp"` | ||
| CurrentBlockNumber uint64 `json:"currentBlockNumber"` | ||
| CurrentDifficulty *big.Int `json:"currentDifficulty"` | ||
| } | ||
|
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| type difficultyTestMarshaling struct { | ||
| ParentTimestamp *math.HexOrDecimal256 | ||
| ParentDifficulty *math.HexOrDecimal256 | ||
| CurrentTimestamp *math.HexOrDecimal256 | ||
| CurrentDifficulty *math.HexOrDecimal256 | ||
| UncleHash common.Hash | ||
| CurrentBlockNumber math.HexOrDecimal64 | ||
| } | ||
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| func (test *DifficultyTest) Run(config *params.ChainConfig) error { | ||
| parentNumber := big.NewInt(int64(test.CurrentBlockNumber - 1)) | ||
| parent := &types.Header{ | ||
| Difficulty: test.ParentDifficulty, | ||
| Time: test.ParentTimestamp, | ||
| Number: parentNumber, | ||
| UncleHash: test.UncleHash, | ||
| } | ||
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| actual := ethash.CalcDifficulty(config, test.CurrentTimestamp.Uint64(), parent) | ||
| exp := test.CurrentDifficulty | ||
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| if actual.Cmp(exp) != 0 { | ||
| return fmt.Errorf("parent[time %v diff %v unclehash:%x] child[time %v number %v] diff %v != expected %v", | ||
| test.ParentTimestamp, test.ParentDifficulty, test.UncleHash, | ||
| test.CurrentTimestamp, test.CurrentBlockNumber, actual, exp) | ||
| } | ||
| return nil | ||
|
|
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| } |
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