20 lines
893 B
JavaScript
20 lines
893 B
JavaScript
import { constant } from './constant.js';
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import { FrequencyArbitrary } from './_internals/FrequencyArbitrary.js';
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import { safeHasOwnProperty } from '../utils/globals.js';
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export /**@__NO_SIDE_EFFECTS__*/function option(arb, constraints = {}) {
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const freq = constraints.freq == null ? 6 : constraints.freq;
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const nilValue = safeHasOwnProperty(constraints, 'nil') ? constraints.nil : null;
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const nilArb = constant(nilValue);
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const weightedArbs = [
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{ arbitrary: nilArb, weight: 1, fallbackValue: { default: nilValue } },
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{ arbitrary: arb, weight: freq - 1 },
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];
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const frequencyConstraints = {
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withCrossShrink: true,
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depthSize: constraints.depthSize,
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maxDepth: constraints.maxDepth,
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depthIdentifier: constraints.depthIdentifier,
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};
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return FrequencyArbitrary.from(weightedArbs, frequencyConstraints, 'fc.option');
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}
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