MyCrypto/spec/utils/tokens.spec.ts

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import { dedupeCustomTokens } from 'utils/tokens';
describe('dedupeCustomTokens', () => {
const networkTokens = [
{
address: '0x48c80F1f4D53D5951e5D5438B54Cba84f29F32a5',
symbol: 'REP',
decimal: 18
},
{
address: '0xa74476443119A942dE498590Fe1f2454d7D4aC0d',
symbol: 'GNT',
decimal: 18
}
];
const DUPLICATE_ADDRESS = {
address: networkTokens[0].address,
symbol: 'REP2',
decimal: 18
};
const DUPLICATE_SYMBOL = {
address: '0x0',
symbol: networkTokens[1].symbol,
decimal: 18
};
const NONDUPLICATE_CUSTOM = {
address: '0x7cB57B5A97eAbe94205C07890BE4c1aD31E486A8',
symbol: 'MEW',
decimal: 0
};
const customTokens = [DUPLICATE_ADDRESS, DUPLICATE_SYMBOL, NONDUPLICATE_CUSTOM];
const dedupedTokens = dedupeCustomTokens(networkTokens, customTokens);
it('Should remove duplicate address custom tokens', () => {
expect(dedupedTokens.includes(DUPLICATE_ADDRESS)).toBeFalsy();
});
it('Should remove duplicate symbol custom tokens', () => {
expect(dedupedTokens.includes(DUPLICATE_SYMBOL)).toBeFalsy();
});
it('Should not remove custom tokens that arent duplicates', () => {
expect(dedupedTokens.includes(NONDUPLICATE_CUSTOM)).toBeTruthy();
});
});