71 lines
1.9 KiB
JavaScript
71 lines
1.9 KiB
JavaScript
import Big from 'bignumber.js';
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import {
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toFixedIfLarger,
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formatNumber,
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formatGasLimit
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} from '../../common/utils/formatters';
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describe('toFixedIfLarger', () => {
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it('should return same value if decimal isnt longer than default', () => {
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const numExample = 7.002;
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expect(toFixedIfLarger(numExample)).toEqual(String(numExample));
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});
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it('should return shortened value rounded up if decimal is longer than default', () => {
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const numExample = 7.1234567;
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expect(toFixedIfLarger(numExample)).toEqual(String(7.123457));
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});
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it('should return shortened value if decimal is longer than passed fixedSize', () => {
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const numExample = 7.12345678;
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expect(toFixedIfLarger(numExample, 2)).toEqual(String(7.12));
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});
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});
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describe('formatNumber', () => {
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const pairs = [
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{
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input: new Big('0.0127491'),
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output: '0.013'
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},
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{
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input: new Big('21.87468421'),
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output: '21.875'
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},
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{
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input: new Big(0),
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output: '0'
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},
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{
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input: new Big('354.4728173'),
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output: '354.4728',
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digits: 4
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},
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{
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input: new Big('100.48391'),
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output: '100',
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digits: 0
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}
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];
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pairs.forEach(pair => {
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const digits = pair.digits === undefined ? 'default' : pair.digits;
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it(`should convert ${pair.input.toString()} to ${pair.output} when using ${digits} digits`, () => {
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expect(formatNumber(pair.input, pair.digits)).toEqual(pair.output);
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});
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});
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});
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describe('formatGasLimit', () => {
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it('should fix transaction gas limit off-by-one errors', () => {
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expect(formatGasLimit(new Big(21001), 'ether')).toEqual('21000');
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});
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it('should mark the gas limit `-1` if you exceed the limit per block', () => {
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expect(formatGasLimit(new Big(999999999999999), 'ether')).toEqual('-1');
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});
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it('should not alter a valid gas limit', () => {
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expect(formatGasLimit(new Big(1234))).toEqual('1234');
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});
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});
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