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]*$/ug)) }) // 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) }) }) }) })