git ssb

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const Environment = require('./environment.js')
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module.exports = class TestEnvironment extends Environment {
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  constructor (data) {
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    super()
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    if (typeof data === 'string') {
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      data = JSON.parse(data)
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    }
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    let self = this
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    if (data.accounts) {
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      data.accounts.forEach((account) => {
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        self.state.set(new Uint8Array(account[0]).toString(), account[1])
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      })
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    }
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    if (data.address) {
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      self.address = new Uint8Array(data.address)
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    }
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    if (data.origin) {
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      self.origin = new Uint8Array(data.origin)
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    }
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    if (data.caller) {
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      self.caller = new Uint8Array(data.caller)
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    }
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    if (data.callValue) {
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      self.callValue = new Uint8Array(data.callValue)
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    }
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    if (data.callData) {
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      self.callData = hexStr2arrayBuf(data.callData)
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    }
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  }
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}
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function hexStr2arrayBuf (string) {
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  const ab = new ArrayBuffer(string.length / 2)
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  const view = new Uint8Array(ab)
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  string = [...string]
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  let temp = ''
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  string.forEach((el, i) => {
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    temp += el
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    if (i % 2) {
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      view[(i + 1) / 2 - 1] = parseInt(temp, 16)
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      temp = ''
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    }
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  })
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  return ab
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}
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