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metamask-extension/ui/app/helpers/utils/util.test.js
2020-11-02 17:41:28 -06:00

433 lines
16 KiB
JavaScript

import assert from 'assert'
import ethUtil from 'ethereumjs-util'
import * as util from './util'
describe('util', function () {
let ethInWei = '1'
for (let i = 0; i < 18; i++) {
ethInWei += '0'
}
describe('#parseBalance', function () {
it('should render 0.01 eth correctly', function () {
const input = '0x2386F26FC10000'
const output = util.parseBalance(input)
assert.deepEqual(output, ['0', '01'])
})
it('should render 12.023 eth correctly', function () {
const input = 'A6DA46CCA6858000'
const output = util.parseBalance(input)
assert.deepEqual(output, ['12', '023'])
})
it('should render 0.0000000342422 eth correctly', function () {
const input = '0x7F8FE81C0'
const output = util.parseBalance(input)
assert.deepEqual(output, ['0', '0000000342422'])
})
it('should render 0 eth correctly', function () {
const input = '0x0'
const output = util.parseBalance(input)
assert.deepEqual(output, ['0', '0'])
})
})
describe('#addressSummary', function () {
it('should add case-sensitive checksum', function () {
const address = '0xfdea65c8e26263f6d9a1b5de9555d2931a33b825'
const result = util.addressSummary(address)
assert.equal(result, '0xFDEa65C8...b825')
})
it('should accept arguments for firstseg, lastseg, and keepPrefix', function () {
const address = '0xfdea65c8e26263f6d9a1b5de9555d2931a33b825'
const result = util.addressSummary(address, 4, 4, false)
assert.equal(result, 'FDEa...b825')
})
})
describe('#isValidAddress', function () {
it('should allow 40-char non-prefixed hex', function () {
const address = 'fdea65c8e26263f6d9a1b5de9555d2931a33b825'
const result = util.isValidAddress(address)
assert.ok(result)
})
it('should allow 42-char non-prefixed hex', function () {
const address = '0xfdea65c8e26263f6d9a1b5de9555d2931a33b825'
const result = util.isValidAddress(address)
assert.ok(result)
})
it('should not allow less non hex-prefixed', function () {
const address = 'fdea65c8e26263f6d9a1b5de9555d2931a33b85'
const result = util.isValidAddress(address)
assert.ok(!result)
})
it('should not allow less hex-prefixed', function () {
const address = '0xfdea65ce26263f6d9a1b5de9555d2931a33b85'
const result = util.isValidAddress(address)
assert.ok(!result)
})
it('should recognize correct capitalized checksum', function () {
const address = '0xFDEa65C8e26263F6d9A1B5de9555D2931A33b825'
const result = util.isValidAddress(address)
assert.ok(result)
})
it('should recognize incorrect capitalized checksum', function () {
const address = '0xFDea65C8e26263F6d9A1B5de9555D2931A33b825'
const result = util.isValidAddress(address)
assert.ok(!result)
})
it('should recognize this sample hashed address', function () {
const address = '0x5Fda30Bb72B8Dfe20e48A00dFc108d0915BE9Bb0'
const result = util.isValidAddress(address)
const hashed = ethUtil.toChecksumAddress(address.toLowerCase())
assert.equal(hashed, address, 'example is hashed correctly')
assert.ok(result, 'is valid by our check')
})
})
describe('isValidDomainName', function () {
it('should return true when given a valid domain name', function () {
assert.strictEqual(util.isValidDomainName('foo.bar'), true)
})
it('should return true when given a valid subdomain', function () {
assert.strictEqual(util.isValidDomainName('foo.foo.bar'), true)
})
it('should return true when given a single-character domain', function () {
assert.strictEqual(util.isValidDomainName('f.bar'), true)
})
it('should return true when given a unicode TLD', function () {
assert.strictEqual(util.isValidDomainName('台灣.中国'), true)
})
it('should return false when given a domain with unacceptable ASCII characters', function () {
assert.strictEqual(util.isValidDomainName('$.bar'), false)
})
it('should return false when given a TLD that starts with a dash', function () {
assert.strictEqual(util.isValidDomainName('foo.-bar'), false)
})
it('should return false when given a TLD that ends with a dash', function () {
assert.strictEqual(util.isValidDomainName('foo.bar-'), false)
})
it('should return false when given a domain name with a chunk that starts with a dash', function () {
assert.strictEqual(util.isValidDomainName('-foo.bar'), false)
})
it('should return false when given a domain name with a chunk that ends with a dash', function () {
assert.strictEqual(util.isValidDomainName('foo-.bar'), false)
})
it('should return false when given a bare TLD', function () {
assert.strictEqual(util.isValidDomainName('bar'), false)
})
it('should return false when given a domain that starts with a period', function () {
assert.strictEqual(util.isValidDomainName('.bar'), false)
})
it('should return false when given a subdomain that starts with a period', function () {
assert.strictEqual(util.isValidDomainName('.foo.bar'), false)
})
it('should return false when given a domain that ends with a period', function () {
assert.strictEqual(util.isValidDomainName('bar.'), false)
})
it('should return false when given a 1-character TLD', function () {
assert.strictEqual(util.isValidDomainName('foo.b'), false)
})
})
describe('#numericBalance', function () {
it('should return a BN 0 if given nothing', function () {
const result = util.numericBalance()
assert.equal(result.toString(10), 0)
})
it('should work with hex prefix', function () {
const result = util.numericBalance('0x012')
assert.equal(result.toString(10), '18')
})
it('should work with no hex prefix', function () {
const result = util.numericBalance('012')
assert.equal(result.toString(10), '18')
})
})
describe('#formatBalance', function () {
it('should return None when given nothing', function () {
const result = util.formatBalance()
assert.equal(result, 'None', 'should return "None"')
})
it('should return 1.0000 ETH', function () {
const input = new ethUtil.BN(ethInWei, 10).toJSON()
const result = util.formatBalance(input, 4)
assert.equal(result, '1.0000 ETH')
})
it('should return 0.500 ETH', function () {
const input = new ethUtil.BN(ethInWei, 10)
.div(new ethUtil.BN('2', 10))
.toJSON()
const result = util.formatBalance(input, 3)
assert.equal(result, '0.500 ETH')
})
it('should display specified decimal points', function () {
const input = '0x128dfa6a90b28000'
const result = util.formatBalance(input, 2)
assert.equal(result, '1.33 ETH')
})
it('should default to 3 decimal points', function () {
const input = '0x128dfa6a90b28000'
const result = util.formatBalance(input)
assert.equal(result, '1.337 ETH')
})
it('should show 2 significant digits for tiny balances', function () {
const input = '0x1230fa6a90b28'
const result = util.formatBalance(input)
assert.equal(result, '0.00032 ETH')
})
it('should not parse the balance and return value with 2 decimal points with ETH at the end', function () {
const value = '1.2456789'
const needsParse = false
const result = util.formatBalance(value, 2, needsParse)
assert.equal(result, '1.24 ETH')
})
})
describe('normalizing values', function () {
describe('#normalizeToWei', function () {
it('should convert an eth to the appropriate equivalent values', function () {
const valueTable = {
wei: '1000000000000000000',
kwei: '1000000000000000',
mwei: '1000000000000',
gwei: '1000000000',
szabo: '1000000',
finney: '1000',
ether: '1',
// kether:'0.001',
// mether:'0.000001',
// AUDIT: We're getting BN numbers on these ones.
// I think they're big enough to ignore for now.
// gether:'0.000000001',
// tether:'0.000000000001',
}
const oneEthBn = new ethUtil.BN(ethInWei, 10)
Object.keys(valueTable).forEach((currency) => {
const value = new ethUtil.BN(valueTable[currency], 10)
const output = util.normalizeToWei(value, currency)
assert.equal(
output.toString(10),
valueTable.wei,
`value of ${output.toString(
10,
)} ${currency} should convert to ${oneEthBn}`,
)
})
})
})
describe('#normalizeEthStringToWei', function () {
it('should convert decimal eth to pure wei BN', function () {
const input = '1.23456789'
const output = util.normalizeEthStringToWei(input)
assert.equal(output.toString(10), '1234567890000000000')
})
it('should convert 1 to expected wei', function () {
const input = '1'
const output = util.normalizeEthStringToWei(input)
assert.equal(output.toString(10), ethInWei)
})
it('should account for overflow numbers gracefully by dropping extra precision.', function () {
const input = '1.11111111111111111111'
const output = util.normalizeEthStringToWei(input)
assert.equal(output.toString(10), '1111111111111111111')
})
it('should not truncate very exact wei values that do not have extra precision.', function () {
const input = '1.100000000000000001'
const output = util.normalizeEthStringToWei(input)
assert.equal(output.toString(10), '1100000000000000001')
})
})
describe('#normalizeNumberToWei', function () {
it('should handle a simple use case', function () {
const input = 0.0002
const output = util.normalizeNumberToWei(input, 'ether')
const str = output.toString(10)
assert.equal(str, '200000000000000')
})
it('should convert a kwei number to the appropriate equivalent wei', function () {
const result = util.normalizeNumberToWei(1.111, 'kwei')
assert.equal(result.toString(10), '1111', 'accepts decimals')
})
it('should convert a ether number to the appropriate equivalent wei', function () {
const result = util.normalizeNumberToWei(1.111, 'ether')
assert.equal(
result.toString(10),
'1111000000000000000',
'accepts decimals',
)
})
})
describe('#isHex', function () {
it('should return true when given a hex string', function () {
const result = util.isHex(
'c3ab8ff13720e8ad9047dd39466b3c8974e592c2fa383d4a3960714caef0c4f2',
)
assert(result)
})
it('should return false when given a non-hex string', function () {
const result = util.isHex(
'c3ab8ff13720e8ad9047dd39466b3c8974e592c2fa383d4a3960714imnotreal',
)
assert(!result)
})
it('should return false when given a string containing a non letter/number character', function () {
const result = util.isHex(
'c3ab8ff13720!8ad9047dd39466b3c%8974e592c2fa383d4a396071imnotreal',
)
assert(!result)
})
it('should return true when given a hex string with hex-prefix', function () {
const result = util.isHex(
'0xc3ab8ff13720e8ad9047dd39466b3c8974e592c2fa383d4a3960714caef0c4f2',
)
assert(result)
})
})
describe('#getRandomFileName', function () {
it('should only return a string containing alphanumeric characters', function () {
const result = util.getRandomFileName()
assert(result.match(/^[a-zA-Z0-9]*$/gu))
})
// 50 samples
it('should return a string that is between 6 and 12 characters in length', function () {
for (let i = 0; i < 50; i++) {
const result = util.getRandomFileName()
assert(result.length >= 6 && result.length <= 12)
}
})
})
})
describe('checkExistingAddresses', function () {
const tokenList = [
{ address: 'A' },
{ address: 'n' },
{ address: 'Q' },
{ address: 'z' },
]
it('should return true when a lowercase address matches an uppercase address in the passed list', function () {
assert(util.checkExistingAddresses('q', tokenList) === true)
})
it('should return true when an uppercase address matches a lowercase address in the passed list', function () {
assert(util.checkExistingAddresses('N', tokenList) === true)
})
it('should return true when a lowercase address matches a lowercase address in the passed list', function () {
assert(util.checkExistingAddresses('z', tokenList) === true)
})
it('should return true when an uppercase address matches an uppercase address in the passed list', function () {
assert(util.checkExistingAddresses('Q', tokenList) === true)
})
it('should return false when the passed address is not in the passed list', function () {
assert(util.checkExistingAddresses('b', tokenList) === false)
})
})
describe('toPrecisionWithoutTrailingZeros', function () {
const testData = [
{ args: ['0', 9], result: '0' },
{ args: [0, 9], result: '0' },
{ args: ['0.0', 9], result: '0' },
{ args: ['0.000000000000', 9], result: '0' },
{ args: ['1', 9], result: '1' },
{ args: [1], result: '1' },
{ args: ['1.0', 9], result: '1' },
{ args: ['1.000000000', 9], result: '1' },
{ args: ['000000001', 9], result: '1' },
{ args: ['000000001.0', 9], result: '1' },
{ args: ['100000000', 9], result: '100000000' },
{ args: ['100000000.00001', 9], result: '100000000' },
{ args: ['100.00001', 9], result: '100.00001' },
{ args: ['100.00001000', 9], result: '100.00001' },
{ args: ['100.000010001', 9], result: '100.00001' },
{ args: ['10.010101', 9], result: '10.010101' },
{ args: ['0.1', 5], result: '0.1' },
{ args: ['0.10', 5], result: '0.1' },
{ args: ['0.1010', 5], result: '0.101' },
{ args: ['0.01001', 5], result: '0.01001' },
{ args: ['0.010010', 5], result: '0.01001' },
{ args: ['0.010011', 5], result: '0.010011' },
{ args: ['1.01005', 5], result: '1.0101' },
{ args: ['1.000049', 5], result: '1' },
{ args: ['1.00005', 5], result: '1.0001' },
{ args: ['0.0000123456789', 9], result: '0.0000123456789' },
{ args: ['1.0000123456789', 10], result: '1.000012346' },
{ args: ['10000.0000012345679', 10], result: '10000' },
{ args: ['1000000000000', 10], result: '1e+12' },
{ args: ['1000050000000', 10], result: '1.00005e+12' },
{ args: ['100000000000000000000', 10], result: '1e+20' },
{ args: ['100005000000000000000', 10], result: '1.00005e+20' },
{ args: ['100005000000000000000.0', 10], result: '1.00005e+20' },
]
testData.forEach(({ args, result }) => {
it(`should return ${result} when passed number ${args[0]} and precision ${args[1]}`, function () {
assert.equal(util.toPrecisionWithoutTrailingZeros(...args), result)
})
})
})
describe('addHexPrefixToObjectValues()', function () {
it('should return a new object with the same properties with a 0x prefix', function () {
assert.deepEqual(
util.addHexPrefixToObjectValues({
prop1: '0x123',
prop2: '456',
prop3: 'x',
}),
{
prop1: '0x123',
prop2: '0x456',
prop3: '0xx',
},
)
})
})
})