utils#basisPointsToPercent TypeScript Examples

The following examples show how to use utils#basisPointsToPercent. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source File: prices.ts    From interface-v2 with GNU General Public License v3.0 6 votes vote down vote up 
// computes the minimum amount out and maximum amount in for a trade given a user specified allowed slippage in bips
export function computeSlippageAdjustedAmounts(
  trade: Trade | undefined,
  allowedSlippage: number,
): { [field in Field]?: CurrencyAmount } {
  const pct = basisPointsToPercent(allowedSlippage);
  return {
    [Field.INPUT]: trade?.maximumAmountIn(pct),
    [Field.OUTPUT]: trade?.minimumAmountOut(pct),
  };
}
Example #2
Source File: index.test.ts    From vvs-ui with GNU General Public License v3.0 5 votes vote down vote up 
describe('utils', () => {
  describe('#getBscScanLink', () => {
    it('correct for tx', () => {
      expect(getExplorerLink('abc', 'transaction', ChainId.MAINNET)).toEqual('https://bscscan.com/tx/abc')
    })
    it('correct for token', () => {
      expect(getExplorerLink('abc', 'token', ChainId.MAINNET)).toEqual('https://bscscan.com/token/abc')
    })
    it('correct for address', () => {
      expect(getExplorerLink('abc', 'address', ChainId.MAINNET)).toEqual('https://bscscan.com/address/abc')
    })
    it('enum', () => {
      expect(getExplorerLink('abc', 'address', ChainId.TESTNET)).toEqual('https://testnet.bscscan.com/address/abc')
    })
  })

  describe('#calculateSlippageAmount', () => {
    it('bounds are correct', () => {
      const tokenAmount = new TokenAmount(new Token(ChainId.MAINNET, AddressZero, 0), '100')
      expect(() => calculateSlippageAmount(tokenAmount, -1)).toThrow()
      expect(calculateSlippageAmount(tokenAmount, 0).map((bound) => bound.toString())).toEqual(['100', '100'])
      expect(calculateSlippageAmount(tokenAmount, 100).map((bound) => bound.toString())).toEqual(['99', '101'])
      expect(calculateSlippageAmount(tokenAmount, 200).map((bound) => bound.toString())).toEqual(['98', '102'])
      expect(calculateSlippageAmount(tokenAmount, 10000).map((bound) => bound.toString())).toEqual(['0', '200'])
      expect(() => calculateSlippageAmount(tokenAmount, 10001)).toThrow()
    })
  })

  describe('#isAddress', () => {
    it('returns false if not', () => {
      expect(isAddress('')).toBe(false)
      expect(isAddress('0x0000')).toBe(false)
      expect(isAddress(1)).toBe(false)
      expect(isAddress({})).toBe(false)
      expect(isAddress(undefined)).toBe(false)
    })

    it('returns the checksummed address', () => {
      expect(isAddress('0xf164fc0ec4e93095b804a4795bbe1e041497b92a')).toBe('0xf164fC0Ec4E93095b804a4795bBe1e041497b92a')
      expect(isAddress('0xf164fC0Ec4E93095b804a4795bBe1e041497b92a')).toBe('0xf164fC0Ec4E93095b804a4795bBe1e041497b92a')
    })

    it('succeeds even without prefix', () => {
      expect(isAddress('f164fc0ec4e93095b804a4795bbe1e041497b92a')).toBe('0xf164fC0Ec4E93095b804a4795bBe1e041497b92a')
    })
    it('fails if too long', () => {
      expect(isAddress('f164fc0ec4e93095b804a4795bbe1e041497b92a0')).toBe(false)
    })
  })

  describe('#calculateGasMargin', () => {
    it('adds 10%', () => {
      expect(calculateGasMargin(BigNumber.from(1000)).toString()).toEqual('1100')
      expect(calculateGasMargin(BigNumber.from(50)).toString()).toEqual('55')
    })
  })

  describe('#basisPointsToPercent', () => {
    it('converts basis points numbers to percents', () => {
      expect(basisPointsToPercent(100).equalTo(new Percent(JSBI.BigInt(1), JSBI.BigInt(100)))).toBeTruthy()
      expect(basisPointsToPercent(500).equalTo(new Percent(JSBI.BigInt(5), JSBI.BigInt(100)))).toBeTruthy()
      expect(basisPointsToPercent(50).equalTo(new Percent(JSBI.BigInt(5), JSBI.BigInt(1000)))).toBeTruthy()
    })
  })
})
Example #3
Source File: index.test.ts    From glide-frontend with GNU General Public License v3.0 4 votes vote down vote up 
describe('utils', () => {
  describe('#getBscScanLink', () => {
    it('correct for tx', () => {
      expect(getBscScanLink('abc', 'transaction', ChainId.MAINNET)).toEqual('https://explorer.com/tx/abc')
    })
    it('correct for token', () => {
      expect(getBscScanLink('abc', 'token', ChainId.MAINNET)).toEqual('https://explorer.com/token/abc')
    })
    it('correct for address', () => {
      expect(getBscScanLink('abc', 'address', ChainId.MAINNET)).toEqual('https://explorer.com/address/abc')
    })
    it('enum', () => {
      expect(getBscScanLink('abc', 'address', ChainId.TESTNET)).toEqual('https://testnet.explorer.com/address/abc')
    })
  })

  describe('#calculateSlippageAmount', () => {
    it('bounds are correct', () => {
      const tokenAmount = new TokenAmount(new Token(ChainId.MAINNET, AddressZero, 0), '100')
      expect(() => calculateSlippageAmount(tokenAmount, -1)).toThrow()
      expect(calculateSlippageAmount(tokenAmount, 0).map((bound) => bound.toString())).toEqual(['100', '100'])
      expect(calculateSlippageAmount(tokenAmount, 100).map((bound) => bound.toString())).toEqual(['99', '101'])
      expect(calculateSlippageAmount(tokenAmount, 200).map((bound) => bound.toString())).toEqual(['98', '102'])
      expect(calculateSlippageAmount(tokenAmount, 10000).map((bound) => bound.toString())).toEqual(['0', '200'])
      expect(() => calculateSlippageAmount(tokenAmount, 10001)).toThrow()
    })
  })

  describe('#isAddress', () => {
    it('returns false if not', () => {
      expect(isAddress('')).toBe(false)
      expect(isAddress('0x0000')).toBe(false)
      expect(isAddress(1)).toBe(false)
      expect(isAddress({})).toBe(false)
      expect(isAddress(undefined)).toBe(false)
    })

    it('returns the checksummed address', () => {
      expect(isAddress('0xf164fc0ec4e93095b804a4795bbe1e041497b92a')).toBe('0xf164fC0Ec4E93095b804a4795bBe1e041497b92a')
      expect(isAddress('0xf164fC0Ec4E93095b804a4795bBe1e041497b92a')).toBe('0xf164fC0Ec4E93095b804a4795bBe1e041497b92a')
    })

    it('succeeds even without prefix', () => {
      expect(isAddress('f164fc0ec4e93095b804a4795bbe1e041497b92a')).toBe('0xf164fC0Ec4E93095b804a4795bBe1e041497b92a')
    })
    it('fails if too long', () => {
      expect(isAddress('f164fc0ec4e93095b804a4795bbe1e041497b92a0')).toBe(false)
    })
  })

  describe('#shortenAddress', () => {
    it('throws on invalid address', () => {
      expect(() => shortenAddress('abc')).toThrow("Invalid 'address'")
    })

    it('truncates middle characters', () => {
      expect(shortenAddress('0xf164fc0ec4e93095b804a4795bbe1e041497b92a')).toBe('0xf164...b92a')
    })

    it('truncates middle characters even without prefix', () => {
      expect(shortenAddress('f164fc0ec4e93095b804a4795bbe1e041497b92a')).toBe('0xf164...b92a')
    })

    it('renders checksummed address', () => {
      expect(shortenAddress('0x2E1b342132A67Ea578e4E3B814bae2107dc254CC'.toLowerCase())).toBe('0x2E1b...54CC')
    })
  })

  describe('#calculateGasMargin', () => {
    it('adds 10%', () => {
      expect(calculateGasMargin(BigNumber.from(1000)).toString()).toEqual('1100')
      expect(calculateGasMargin(BigNumber.from(50)).toString()).toEqual('55')
    })
  })

  describe('#basisPointsToPercent', () => {
    it('converts basis points numbers to percents', () => {
      expect(basisPointsToPercent(100).equalTo(new Percent(JSBI.BigInt(1), JSBI.BigInt(100)))).toBeTruthy()
      expect(basisPointsToPercent(500).equalTo(new Percent(JSBI.BigInt(5), JSBI.BigInt(100)))).toBeTruthy()
      expect(basisPointsToPercent(50).equalTo(new Percent(JSBI.BigInt(5), JSBI.BigInt(1000)))).toBeTruthy()
    })
  })
})