storj/web/satellite/tests/unit/utils/strings.spec.ts

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// Copyright (C) 2023 Storj Labs, Inc.
// See LICENSE for copying information.
import { decimalShift } from '@/utils/strings';
describe('decimalShift', (): void => {
it('shifts integers correctly', function() {
['', '-'].forEach(sign => {
const decimal = sign+'123';
expect(decimalShift(decimal, 0)).toBe(sign+'123');
expect(decimalShift(decimal, 2)).toBe(sign+'1.23');
expect(decimalShift(decimal, 5)).toBe(sign+'0.00123');
expect(decimalShift(decimal, -2)).toBe(sign+'12300');
});
});
it('shifts decimals correctly', function() {
['', '-'].forEach(sign => {
const decimal = sign+'1.23';
expect(decimalShift(decimal, 0)).toBe(sign+'1.23');
expect(decimalShift(decimal, -2)).toBe(sign+'123');
expect(decimalShift(decimal, 3)).toBe(sign+'0.00123');
expect(decimalShift(decimal, -4)).toBe(sign+'12300');
});
});
it('trims unnecessary characters', function() {
['', '-'].forEach(sign => {
expect(decimalShift(sign+'0.0012300', -2)).toBe(sign+'0.123');
expect(decimalShift(sign+'12300', 2)).toBe(sign+'123');
expect(decimalShift(sign+'000.000', 1)).toBe('0');
});
});
});