Initial commit

node_modules/fast-check/lib/arbitrary/_internals/mappers/StringToBase64.js

@@ -0,0 +1,31 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.stringToBase64Mapper = stringToBase64Mapper;
+exports.stringToBase64Unmapper = stringToBase64Unmapper;
+const globals_1 = require("../../../utils/globals");
+function stringToBase64Mapper(s) {
+    switch (s.length % 4) {
+        case 0:
+            return s;
+        case 3:
+            return `${s}=`;
+        case 2:
+            return `${s}==`;
+        default:
+            return (0, globals_1.safeSubstring)(s, 1);
+    }
+}
+function stringToBase64Unmapper(value) {
+    if (typeof value !== 'string' || value.length % 4 !== 0) {
+        throw new Error('Invalid string received');
+    }
+    const lastTrailingIndex = value.indexOf('=');
+    if (lastTrailingIndex === -1) {
+        return value;
+    }
+    const numTrailings = value.length - lastTrailingIndex;
+    if (numTrailings > 2) {
+        throw new Error('Cannot unmap the passed value');
+    }
+    return (0, globals_1.safeSubstring)(value, 0, lastTrailingIndex);
+}