| 1 | const MAX_DECIMAL_PLACES = 3; |
| 2 | |
| 3 | // `test` is part of Jest's serializer API |
| 4 | export function test(maybeNumber) { |
| 5 | return ( |
| 6 | typeof maybeNumber === 'number' && |
| 7 | Number.isFinite(maybeNumber) && |
| 8 | !Number.isInteger(maybeNumber) && |
| 9 | !Number.isNaN(maybeNumber) |
| 10 | ); |
| 11 | } |
| 12 | |
| 13 | // print() is part of Jest's serializer API |
| 14 | export function print(number, serialize, indent) { |
| 15 | const string = number.toString(); |
| 16 | const pieces = string.split('.'); |
| 17 | if (pieces.length === 2) { |
| 18 | if (pieces[1].length > MAX_DECIMAL_PLACES) { |
| 19 | return number.toFixed(MAX_DECIMAL_PLACES); |
| 20 | } |
| 21 | } |
| 22 | |
| 23 | return string; |
| 24 | } |