Add decrypt smoke test

Author: focusaurus

code/post-encrypt/cipher.js

@@ -0,0 +1,15 @@
+"use strict";
+const config = require("../config");
+const crypto = require("crypto");
+
+function encrypt(clear) {
+  const cipher = crypto.createCipher("aes192", config.HL_SECRET1);
+  return cipher.update(clear, "utf8", "base64") + cipher.final("base64");
+}
+
+function decrypt(encrypted) {
+  const decipher = crypto.createDecipher("aes192", config.HL_SECRET1);
+  return decipher.update(encrypted, "base64", "utf8") + decipher.final("utf8");
+}
+
+module.exports = {encrypt, decrypt};

code/post-encrypt/lambda.js

@@ -1,18 +1,13 @@
 "use strict";
+const cipher = require("./cipher");
 const config = require("../config");
-const crypto = require("crypto");
 const lambdaUtils = require("../lambda-utils");
 
 const console = lambdaUtils.console;
 
-function encrypt(clear) {
-  const cipher = crypto.createCipher("aes192", config.HL_SECRET1);
-  return cipher.update(clear, "utf8", "base64") + cipher.final("base64");
-}
-
 function postEncrypt(call, res, next) {
   console.log("Encrypting payload");
-  const encrypted = encrypt(JSON.stringify(call.event.body));
+  const encrypted = cipher.encrypt(JSON.stringify(call.event.body));
   call.body = {encrypted};
   next();
 }

code/post-encrypt/smoke-tests.js

@@ -1,4 +1,5 @@
 "use strict";
+const cipher = require("./cipher");
 const request = require("request");
 const tap = require("tap");
 
@@ -17,6 +18,8 @@ tap.test("post-encrypt base case", test => {
       test.match(res.statusCode, 200);
       test.ok(body.encrypted);
       test.same(typeof body.encrypted, "string");
+      const payload = JSON.parse(cipher.decrypt(body.encrypted));
+      test.same(payload, {cat: "cat", dog: "dog"});
       test.end();
     }
   );

code/post-encrypt/unit-tests-tap.js

@@ -1,7 +1,6 @@
 "use strict";
 const {handler} = require("./lambda");
-const config = require("../config");
-const crypto = require("crypto");
+const cipher = require("./cipher");
 const eventSchema = require("./event-schema");
 const set = require("lodash.set");
 const tap = require("tap");
@@ -14,11 +13,6 @@ function mockEvent(path, value) {
   return event;
 }
 
-function decrypt(encrypted) {
-  const decipher = crypto.createDecipher("aes192", config.HL_SECRET1);
-  return decipher.update(encrypted, "base64", "utf8") + decipher.final("utf8");
-}
-
 const invalids = [
   ["body", 0], // not string
   ["body", false], // not string
@@ -45,7 +39,7 @@ tap.test("handler should work in base case", test => {
     const body = JSON.parse(res.body);
     test.ok(body.encrypted);
     test.same(typeof body.encrypted, "string");
-    const payloadJson = decrypt(body.encrypted);
+    const payloadJson = cipher.decrypt(body.encrypted);
     const payload = JSON.parse(payloadJson);
     test.match({foo: "FOO", bar: "BAR"}, payload);
     test.end();