fast-check
Version:
Property based testing framework for JavaScript (like QuickCheck)
21 lines (20 loc) • 1 kB
JavaScript
import { IntegerArbitrary } from './_internals/IntegerArbitrary.js';
const safeNumberIsInteger = Number.isInteger;
function buildCompleteIntegerConstraints(constraints) {
const min = constraints.min !== undefined ? constraints.min : -0x80000000;
const max = constraints.max !== undefined ? constraints.max : 0x7fffffff;
return { min, max };
}
export /**@__NO_SIDE_EFFECTS__*/function integer(constraints = {}) {
const fullConstraints = buildCompleteIntegerConstraints(constraints);
if (fullConstraints.min > fullConstraints.max) {
throw new Error('fc.integer maximum value should be equal or greater than the minimum one');
}
if (!safeNumberIsInteger(fullConstraints.min)) {
throw new Error('fc.integer minimum value should be an integer');
}
if (!safeNumberIsInteger(fullConstraints.max)) {
throw new Error('fc.integer maximum value should be an integer');
}
return new IntegerArbitrary(fullConstraints.min, fullConstraints.max);
}