diff --git a/client-sdk/ts-web/rt/test/callformat.test.ts b/client-sdk/ts-web/rt/test/callformat.test.ts
new file mode 100644
index 0000000000..389a446517
--- /dev/null
+++ b/client-sdk/ts-web/rt/test/callformat.test.ts
@@ -0,0 +1,34 @@
+import * as oasisRT from './../src';
+import * as nacl from 'tweetnacl';
+
+describe('callformat', () => {
+  describe('encodeCall/DecodeResult', () => {
+    it('Should encode and decode the message correctly', () => {
+      const message = "I will find some random message here"
+      const pairs = nacl.box.keyPair()
+      const publicKey = pairs.publicKey
+      const rawCall: oasisRT.types.Call = {
+	format: oasisRT.transaction.CALLFORMAT_ENCRYPTED_X25519DEOXYSII,
+	method: '',
+	body: message
+      }
+      const dummy = new Uint8Array()
+      const keyManagerPk: oasisRT.types.KeyManagerSignedPublicKey = {
+	key: publicKey,
+	checksum: dummy,
+	signature: dummy
+      }
+      const config: oasisRT.callformat.EncodeConfig = {
+	publicKey: keyManagerPk
+      }
+      const [sealedCall, meta] = oasisRT.callformat.encodeCall(rawCall, oasisRT.transaction.CALLFORMAT_ENCRYPTED_X25519DEOXYSII, config)
+
+      const fakedResult: oasisRT.types.CallResult = {
+	unknown: sealedCall.body as Uint8Array
+      }
+
+      var decodedResult = oasisRT.callformat.decodeResult(fakedResult, oasisRT.transaction.CALLFORMAT_ENCRYPTED_X25519DEOXYSII, meta as oasisRT.callformat.MetaEncryptedX25519DeoxysII) as oasisRT.types.Call
+      expect(decodedResult.body).toEqual(message)
+    });
+  });  
+});