Fix undefined if

test/cases.js

@@ -0,0 +1,14 @@
+const chai = require("chai");
+const path = require("path");
+const snarkjs = require("snarkjs");
+const crypto = require("crypto");
+
+const compiler = require("../index.js");
+
+const assert = chai.assert;
+
+describe("Sum test", () => {
+    it("Should compile a code with an undefined if", async() => {
+        await compiler(path.join(__dirname, "circuits", "undefinedif.circom"));
+    });
+});