Initial commit

node_modules/fast-check/lib/arbitrary/option.js

@@ -0,0 +1,22 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.option = option;
+const constant_1 = require("./constant");
+const FrequencyArbitrary_1 = require("./_internals/FrequencyArbitrary");
+const globals_1 = require("../utils/globals");
+function option(arb, constraints = {}) {
+    const freq = constraints.freq == null ? 5 : constraints.freq;
+    const nilValue = (0, globals_1.safeHasOwnProperty)(constraints, 'nil') ? constraints.nil : null;
+    const nilArb = (0, constant_1.constant)(nilValue);
+    const weightedArbs = [
+        { arbitrary: nilArb, weight: 1, fallbackValue: { default: nilValue } },
+        { arbitrary: arb, weight: freq },
+    ];
+    const frequencyConstraints = {
+        withCrossShrink: true,
+        depthSize: constraints.depthSize,
+        maxDepth: constraints.maxDepth,
+        depthIdentifier: constraints.depthIdentifier,
+    };
+    return FrequencyArbitrary_1.FrequencyArbitrary.from(weightedArbs, frequencyConstraints, 'fc.option');
+}