adding tests

test/unit/edge-encryptor-test.js

@@ -0,0 +1,66 @@
+const assert = require('assert')
+
+const EdgeEncryptor = require('../../app/scripts/edge-encryptor')
+
+var password = 'passw0rd1'
+var data = 'some random data'
+
+// polyfill fetch
+global.crypto = global.crypto || {
+  getRandomValues (array) {
+    for (let i = 0; i < array.length; i++) {
+      array[i] = Math.random() * 100;
+    }
+  }
+}
+
+describe('EdgeEncryptor', function () {
+  const edgeEncryptor = new EdgeEncryptor()
+
+  describe('encrypt', function () {
+
+    it('should encrypt the data.', function () {
+      edgeEncryptor.encrypt(password, data)
+        .then(function (encryptedData) {
+          assert.notEqual(data, encryptedData)
+          assert.notEqual(encryptedData.length, 0)
+          done()
+        }).catch(function (err) {
+          done(err)
+        })
+    })
+
+    it('should not return the same twice.', function () {
+
+      const encryptPromises = []
+      encryptPromises.push(edgeEncryptor.encrypt(password, data))
+      encryptPromises.push(edgeEncryptor.encrypt(password, data))
+
+      Promise.all(encryptPromises).then((encryptedData) => {
+        assert.equal(encryptedData.length, 2)
+        assert.notEqual(encryptedData[0], encryptedData[1])
+        assert.notEqual(encryptedData[0].length, 0)
+        assert.notEqual(encryptedData[1].length, 0)
+      })
+    })    
+  })
+
+  describe('decrypt', function () {
+    it('should be able to decrypt the encrypted data.', function () {
+
+      edgeEncryptor.encrypt(password, data)
+        .then(function (encryptedData) {
+          edgeEncryptor.decrypt(password, encryptedData)
+          .then(function (decryptedData) {
+            assert.equal(decryptedData, data)
+          })
+          .catch(function (err) {
+            done(err)
+          })
+        })
+        .catch(function (err) {
+          done(err)
+        })
+    })
+  })
+})