@yoroi/common/lib/module/numbers/atomic-formatter.test.js

The Common package of Yoroi SDK

"use strict";

import { atomicFormatter } from './atomic-formatter';
describe('atomicFormatter', () => {
  // NOTE: decimal and thousands separators are locale-dependent
  it.each`
    value                 | decimalPlaces | expected
    ${BigInt(1234567890)} | ${2}          | ${'12,345,678.90'}
    ${BigInt(189)}        | ${6}          | ${'0.000189'}
    ${BigInt(1000000)}    | ${6}          | ${'1.000000'}
    ${BigInt(1000000)}    | ${0}          | ${'1,000,000'}
  `('formats value $value with $decimalPlaces decimal places to $expected', ({
    value,
    decimalPlaces,
    expected
  }) => {
    const formattedValue = atomicFormatter({
      value,
      decimalPlaces
    });
    expect(formattedValue).toBe(expected);
  });
});
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