查看test能夠讓你更好滴了解其API文檔的使用

ethereumjs-common/tests/chains.js

const tape = require('tape') const Common = require('../index.js')tape('[Common]: Initialization / Chain params', function (t) {t.test('Should initialize with chain provided', function (st) {//只使用chain來初始化一個Common對象let c = new Common('mainnet')//使用的是mainnet鏈st.equal(c.chainName(), 'mainnet', 'should initialize with chain name')//使用chainName API得到當前鏈名st.equal(c.chainId(), 1, 'should return correct chain Id') //得到chainIdst.equal(c.networkId(), 1, 'should return correct network Id') //得到networkIdst.equal(c.hardfork(), null, 'should set hardfork to null') //使用的硬分叉，因為沒有設置，所以是nullst.equal(c._isSupportedHardfork('constantinople'), true, 'should not restrict supported HFs') //是否支持constantinople硬分叉，這是默認支持的硬分叉類型中的一種，所以返回true c = new Common(1) //也可以使用chain ID數字來表示mainnet鏈st.equal(c.chainName(), 'mainnet', 'should initialize with chain Id')st.end()})t.test('Should initialize with chain and hardfork provided', function (st) { //使用chain和hardfork兩個參數來初始化對象let c = new Common('mainnet', 'byzantium') //chain = mainnet ，hardfork = byzantiumst.equal(c.hardfork(), 'byzantium', 'should return correct hardfork name')st.end()})t.test('Should initialize with supportedHardforks provided', function (st) { //使用chain、hardfork和supportedHardforks三個參數來初始化對象let c = new Common('mainnet', 'byzantium', ['byzantium', 'constantinople']) //supportedHardforks = ['byzantium', 'constantinople']，設置只支持這兩個硬分叉類型st.equal(c._isSupportedHardfork('byzantium'), true, 'should return true for supported HF')st.equal(c._isSupportedHardfork('spuriousDragon'), false, 'should return false for unsupported HF')//因為supportedHardforks中沒有它，所以不支持 st.end()})t.test('Should handle initialization errors', function (st) {st.throws(function () { new Common('chainnotexisting') }, /not supported$/, 'should throw an exception on non-existing chain') // eslint-disable-line no-new ，不是支持的chain類型st.throws(function () { new Common('mainnet', 'hardforknotexisting') }, /not supported$/, 'should throw an exception on non-existing hardfork') // eslint-disable-line no-new ，不是支持的hardfork類型st.throws(function () { new Common('mainnet', 'spuriousDragon', ['byzantium', 'constantinople']) }, /supportedHardforks$/, 'should throw an exception on conflicting active/supported HF params') // eslint-disable-line no-new ，不是supportedHardforks中包含的hardfork類型 st.end()})t.test('Should provide correct access to chain parameters', function (st) {let c = new Common('mainnet')st.equal(c.genesis().hash, '0xd4e56740f876aef8c010b86a40d5f56745a118d0906a34e69aec8c0db1cb8fa3', 'should return correct genesis hash')//返回當前鏈的初始狀態中的hash值st.equal(c.hardforks()[3]['block'], 2463000, 'should return correct hardfork data')//返回當前鏈的硬分叉數組中第四個分叉的'block'值st.equal(c.bootstrapNodes()[0].port, 30303, 'should return a bootstrap node array')//返回當前鏈的所有bootstrap節點字典中第一個節點的端口port值 st.end()})t.test('Should be able to access data for all chains provided', function (st) {let c = new Common('mainnet')st.equal(c.genesis().hash, '0xd4e56740f876aef8c010b86a40d5f56745a118d0906a34e69aec8c0db1cb8fa3', 'mainnet')c.setChain('ropsten') //重新將鏈設置為ropstenst.equal(c.genesis().hash, '0x41941023680923e0fe4d74a34bdac8141f2540e3ae90623718e47d66d1ca4a2d', 'ropsten')c.setChain('rinkeby')st.equal(c.genesis().hash, '0x6341fd3daf94b748c72ced5a5b26028f2474f5f00d824504e4fa37a75767e177', 'rinkeby')c.setChain('kovan')st.equal(c.genesis().hash, '0xa3c565fc15c7478862d50ccd6561e3c06b24cc509bf388941c25ea985ce32cb9', 'kovan')c.setChain('goerli')st.equal(c.genesis().hash, '0xfa57319d09fd8a32faaf18d338c8a925a5a7975285bf29ecd024e083cba8abb1', 'goerli')st.end()})t.test('Should provide correct access to private network chain parameters', function (st) {//如果你連接的chain不是上面那些定義好的chain，而是你私有的或定制的，初始化的方式是下面這樣的let chainParams = require('./testnet.json') //testnet.json中是具體的鏈描述信息let c = new Common(chainParams, 'byzantium')st.equal(c.chainName(), 'testnet', 'should initialize with chain name')st.equal(c.chainId(), 12345, 'should return correct chain Id')st.equal(c.networkId(), 12345, 'should return correct network Id')st.equal(c.genesis().hash, '0xaa00000000000000000000000000000000000000000000000000000000000000', 'should return correct genesis hash')st.equal(c.hardforks()[3]['block'], 3, 'should return correct hardfork data')st.equal(c.bootstrapNodes()[1].ip, '10.0.0.2', 'should return a bootstrap node array')st.end()})t.test('Should handle custom chain parameters with missing field', function (st) {let chainParams = require('./testnet.json')delete chainParams['hardforks'] //如果有任何內容的缺失，初始化時將報錯st.throws(function () { new Common(chainParams) }, /Missing required/, 'should throw an exception on missing parameter') // eslint-disable-line no-new st.end()}) })

?

ethereumjs-common/tests/hardforks.js

const tape = require('tape') const Common = require('../index.js')tape('[Common]: Hardfork logic', function (t) {t.test('Hardfork access', function (st) {let supportedHardforks = [ //設置支持的硬分支類型'chainstart','homestead','dao','tangerineWhistle','spuriousDragon','byzantium','constantinople']let cfor (let hardfork of supportedHardforks) {c = new Common('mainnet', hardfork)st.equal(c.hardfork(), hardfork, hardfork)}st.end()})t.test('hardforkBlock()', function (st) {let c = new Common('ropsten')st.equal(c.hardforkBlock('byzantium'), 1700000, 'should return the correct HF change block for byzantium (provided)') //得到byzantium分叉開始的區塊數 c = new Common('ropsten', 'byzantium')st.equal(c.hardforkBlock(), 1700000, 'should return the correct HF change block for byzantium (set)')st.end()})t.test('isHardforkBlock()', function (st) {let c = new Common('ropsten')st.equal(c.isHardforkBlock(1700000, 'byzantium'), true, 'should return true for HF change block for byzantium (provided)')st.equal(c.isHardforkBlock(1700001, 'byzantium'), false, 'should return false for another block for byzantium (provided)')c = new Common('ropsten', 'byzantium')st.equal(c.isHardforkBlock(1700000), true, 'should return true for HF change block for byzantium (set)')st.equal(c.isHardforkBlock(1700001), false, 'should return false for another block for byzantium (set)')st.end()})t.test('activeHardforks()', function (st) {let c = new Common('ropsten')st.equal(c.activeHardforks().length, 5, 'should return 5 active hardforks for Ropsten') //說明ropsten鏈中有5個活躍分叉類型st.equal(c.activeHardforks()[3]['name'], 'spuriousDragon', 'should return the correct HF data for Ropsten')st.equal(c.activeHardforks(9).length, 3, 'should return 3 active hardforks for Ropsten up to block 9')//即直到區塊9有的活躍分叉個數為3st.equal(c.activeHardforks(10).length, 4, 'should return 4 active hardforks for Ropsten up to block 10')c = new Common('ropsten', null, ['spuriousDragon', 'byzantium', 'constantinople'])//onlySupported: true說明只支持supportedHardforks里面的分叉，所以返回的結果就從5變成了2，只包含了2個活躍分叉類型st.equal(c.activeHardforks(null, { onlySupported: true }).length, 2, 'should return 2 active HFs when restricted to supported HFs')st.end()})t.test('activeHardfork()', function (st) {let c = new Common('ropsten')st.equal(c.activeHardfork(), 'byzantium', 'should return byzantium as latest active HF for Ropsten') //說明整條鏈最新的分叉為byzantiumst.equal(c.activeHardfork(10), 'spuriousDragon', 'should return spuriousDragon as latest active HF for Ropsten for block 10') //即到區塊10的最新分叉類型為spuriousDragon c = new Common('ropsten', null, ['tangerineWhistle', 'spuriousDragon'])//返回'spuriousDragon'，因為supportedHardforks里最新的類型為它st.equal(c.activeHardfork(null, { onlySupported: true }), 'spuriousDragon', 'should return spuriousDragon as latest active HF for Ropsten with limited supported hardforks')st.end()})t.test('hardforkIsActiveOnBlock() / activeOnBlock()', function (st) {let c = new Common('ropsten')st.equal(c.hardforkIsActiveOnBlock('byzantium', 1700000), true, 'Ropsten, byzantium (provided), 1700000 -> true')st.equal(c.hardforkIsActiveOnBlock('byzantium', 1700005), true, 'Ropsten, byzantium (provided), 1700005 -> true')st.equal(c.hardforkIsActiveOnBlock('byzantium', 1699999), false, 'Ropsten, byzantium (provided), 1699999 -> false')c = new Common('ropsten', 'byzantium')st.equal(c.hardforkIsActiveOnBlock(null, 1700000), true, 'Ropsten, byzantium (set), 1700000 -> true')st.equal(c.activeOnBlock(1700000), true, 'Ropsten, byzantium (set), 1700000 -> true (alias function)')st.equal(c.hardforkIsActiveOnBlock(null, 1700005), true, 'Ropsten, byzantium (set), 1700005 -> true')st.equal(c.hardforkIsActiveOnBlock(null, 1699999), false, 'Ropsten, byzantium (set), 1699999 -> false')st.end()})t.test('hardforkGteHardfork()', function (st) {let c = new Common('ropsten')st.equal(c.hardforkGteHardfork('constantinople', 'byzantium'), true, 'Ropsten, constantinople >= byzantium (provided) -> true')st.equal(c.hardforkGteHardfork('constantinople', 'byzantium', { onlyActive: true }), false, 'Ropsten, constantinople >= byzantium (provided), onlyActive -> fale')st.equal(c.hardforkGteHardfork('byzantium', 'byzantium'), true, 'Ropsten, byzantium >= byzantium (provided) -> true')st.equal(c.hardforkGteHardfork('spuriousDragon', 'byzantium'), false, 'Ropsten, spuriousDragon >= byzantium (provided) -> false')c = new Common('ropsten', 'byzantium')st.equal(c.hardforkGteHardfork(null, 'spuriousDragon'), true, 'Ropsten, byzantium (set) >= spuriousDragon -> true')st.equal(c.gteHardfork('spuriousDragon'), true, 'Ropsten, byzantium (set) >= spuriousDragon -> true (alias function)')st.equal(c.hardforkGteHardfork(null, 'spuriousDragon', { onlyActive: true }), true, 'Ropsten, byzantium (set) >= spuriousDragon, onlyActive -> true')st.equal(c.hardforkGteHardfork(null, 'byzantium'), true, 'Ropsten, byzantium (set) >= byzantium -> true')st.equal(c.hardforkGteHardfork(null, 'constantinople'), false, 'Ropsten, byzantium (set) >= constantinople -> false')st.end()})t.test('hardforkIsActiveOnChain()', function (st) {let c = new Common('ropsten')st.equal(c.hardforkIsActiveOnChain('byzantium'), true, 'should return true for byzantium (provided) on Ropsten')st.equal(c.hardforkIsActiveOnChain('dao'), false, 'should return false for dao (provided) on Ropsten')st.equal(c.hardforkIsActiveOnChain('constantinople'), false, 'should return false for constantinople (provided) on Ropsten')st.equal(c.hardforkIsActiveOnChain('notexistinghardfork'), false, 'should return false for a non-existing HF (provided) on Ropsten')//因為這里并沒有設置，但是使用了onlySupported: true，所以會報出"spuriousDragon"為不支持的分叉的錯誤st.doesNotThrow(function () { c.hardforkIsActiveOnChain('spuriousDragon', { onlySupported: true }) }, /unsupported hardfork$/, 'should not throw with unsupported Hf (provided) and onlySupported set to false') // eslint-disable-line no-new c = new Common('ropsten', 'byzantium')st.equal(c.hardforkIsActiveOnChain(), true, 'should return true for byzantium (set) on Ropsten')c = new Common('ropsten', null, ['byzantium', 'constantinople'])st.throws(function () { c.hardforkIsActiveOnChain('spuriousDragon', { onlySupported: true }) }, /not set as supported in supportedHardforks$/, 'should throw with unsupported Hf and onlySupported set to true') // eslint-disable-line no-new st.end()})t.test('consensus()/finality()', function (st) {let c = new Common('mainnet')st.equal(c.consensus('byzantium'), 'pow', 'should return pow for byzantium consensus')//返回byzantium分叉共識為'pow'st.equal(c.consensus('constantinople'), 'pow', 'should return pow for constantinople consensus')st.equal(c.finality('byzantium'), null, 'should return null for byzantium finality')st.end()}) })

?

ethereumjs-common/tests/params.js

const tape = require('tape') const Common = require('../index.js')tape('[Common]: Parameter access', function (t) {//這個測試就是獲取參數值t.test('Basic usage', function (st) {let c = new Common('mainnet')st.equal(c.param('gasPrices', 'ecAdd', 'byzantium'), 500, 'Should return correct value when HF directly provided')c.setHardfork('byzantium')st.equal(c.param('gasPrices', 'ecAdd'), 500, 'Should return correct value for HF set in class')st.end()})t.test('Error cases', function (st) {let c = new Common('mainnet')st.throws(function () { c.param('gasPrices', 'ecAdd') }, /neither a hardfork set nor provided by param$/, 'Should throw when no hardfork set or provided')st.throws(function () { c.param('gasPrizes', 'ecAdd', 'byzantium') }, /Topic gasPrizes not defined$/, 'Should throw when called with non-existing topic')st.throws(function () { c.param('gasPrices', 'notexistingvalue', 'byzantium') }, /value for notexistingvalue not found$/, 'Should throw when called with non-existing value')c.setHardfork('byzantium')st.equal(c.param('gasPrices', 'ecAdd'), 500, 'Should return correct value for HF set in class')c = new Common('mainnet', 'byzantium', ['byzantium', 'constantinople'])st.throws(function () { c.param('gasPrices', 'expByte', 'spuriousDragon') }, /supportedHardforks$/, 'Should throw when calling param() with an unsupported hardfork')st.throws(function () { c.paramByBlock('gasPrices', 'expByte', 0) }, /supportedHardforks$/, 'Should throw when calling paramByBlock() with an unsupported hardfork')st.end()})t.test('Parameter updates', function (st) {let c = new Common('mainnet')st.throws(function () { c.param('gasPrices', 'ecAdd', 'spuriousDragon') }, /value for ecAdd not found$/, 'Should throw for a value set on a later HF')st.equal(c.param('pow', 'minerReward', 'chainstart'), '5000000000000000000', 'Should return correct value for chain start')st.equal(c.param('pow', 'minerReward', 'byzantium'), '3000000000000000000', 'Should reflect HF update changes')st.equal(c.param('gasPrices', 'netSstoreNoopGas', 'constantinople'), 200, 'Should return updated sstore gas prices for constantinople')st.end()})t.test('Access by block number, paramByBlock()', function (st) {let c = new Common('mainnet', 'byzantium')st.equal(c.paramByBlock('pow', 'minerReward', 4370000), '3000000000000000000', 'Should correctly translate block numbers into HF states (updated value)')st.equal(c.paramByBlock('pow', 'minerReward', 4369999), '5000000000000000000', 'Should correctly translate block numbers into HF states (original value)')st.end()}) })

?

ethereumjs-common/tests/testnet.json

{"name": "testnet","chainId": 12345,"networkId": 12345,"comment": "Private test network","genesis": {"hash": "0xaa00000000000000000000000000000000000000000000000000000000000000","timestamp": null,"gasLimit": 1000000,"difficulty": 1,"nonce": "0xbb00000000000000","extraData": "0xcc000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000","stateRoot": "0xdd00000000000000000000000000000000000000000000000000000000000000"},"hardforks": [{"name": "chainstart","block": 0,"consensus": "poa","finality": null},{"name": "homestead","block": 1,"consensus": "poa","finality": null},{"name": "tangerineWhistle","block": 2,"consensus": "poa","finality": null},{"name": "spuriousDragon","block": 3,"consensus": "poa","finality": null},{"name": "byzantium","block": 4,"consensus": "poa","finality": null}],"bootstrapNodes": [{"ip": "10.0.0.1","port": 30303,"id": "11000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000","location": "","comment": ""},{"ip": "10.0.0.2","port": 30303,"id": "22000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000","location": "","comment": ""}] }

?

轉載于:https://www.cnblogs.com/wanghui-garcia/p/10089565.html

總結

以上是生活随笔為你收集整理的ethereumjs/ethereumjs-common-3-test的全部內容，希望文章能夠幫你解決所遇到的問題。

如果覺得生活随笔網站內容還不錯，歡迎將生活随笔推薦給好友。