// Deterministic Math.random, from Octane. var seed = 49734321; function rand() { // Robert Jenkins' 32 bit integer hash function. seed = ((seed + 0x7ed55d16) + (seed << 12)) & 0xffffffff; seed = ((seed ^ 0xc761c23c) ^ (seed >>> 19)) & 0xffffffff; seed = ((seed + 0x165667b1) + (seed << 5)) & 0xffffffff; seed = ((seed + 0xd3a2646c) ^ (seed << 9)) & 0xffffffff; seed = ((seed + 0xfd7046c5) + (seed << 3)) & 0xffffffff; seed = ((seed ^ 0xb55a4f09) ^ (seed >>> 16)) & 0xffffffff; return (seed & 0xfffffff) / 0x10000000; } var randomS = ""; function test(len) { const chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"; var s = "var data = '"; while (randomS.length < len) { randomS += chars.charAt((rand() * chars.length)|0); } s += randomS; s += "'; function f() {}; assertEq(f.toString(), 'function f() {}');"; eval(s); } for (var i=32740; i<32780; i += 5) { test(i); }