js: add tests

--

* BrowserTestExtension/tests:

  - decryptTest.js: Check Decryption and return values of binary data
  - encryptTest.js: Return data type of armored/non-armored encryption
  - added a small encoded input png for testing

* DemoExtension/maindemo.js: Fixed unexpected usage of the Demo encrypt
  (non-armored)

1 files changed, 43 insertions, 2 deletions

diff --git a/lang/js/BrowserTestExtension/tests/encryptTest.js b/lang/js/BrowserTestExtension/tests/encryptTest.js
index ccdb4994..d97b458d 100644
--- a/lang/js/BrowserTestExtension/tests/encryptTest.js
+++ b/lang/js/BrowserTestExtension/tests/encryptTest.js
@@ -22,7 +22,7 @@
  */
 
 /* global describe, it, expect, before, Gpgmejs */
-/* global inputvalues, fixedLengthString */
+/* global inputvalues, fixedLengthString, bigString */
 
 describe('Encryption', function () {
     let context = null;
@@ -47,6 +47,47 @@ describe('Encryption', function () {
             });
     });
 
+
+    it( 'encrypt with \'armor\': true should returned an armored block',
+        function (done){
+            const data = bigString(1000);
+            context.encrypt({ data: data, publicKeys: good_fpr, armor: true })
+                .then(function (answer){
+                    expect(answer).to.not.be.empty;
+                    expect(answer.data).to.be.a('string');
+                    expect(answer.data).to.include('BEGIN PGP MESSAGE');
+                    expect(answer.data).to.include('END PGP MESSAGE');
+                    expect(answer.format).to.equal('ascii');
+                    done();
+                });
+        });
+
+    it( 'encrypt with \'armor\': false and \'expected\': \'uint8\' returns ' +
+    'an Uint8Array', function (done) {
+        const data = bigString(1000);
+        context.encrypt({
+            data: data, publicKeys: good_fpr, armor: false, expect: 'uint8'
+        }).then(function (answer){
+            expect(answer).to.not.be.empty;
+            expect(answer.data).to.be.a('Uint8Array');
+            expect(answer.format).to.equal('uint8');
+            done();
+        });
+    });
+
+    it( 'encrypt with \'armor\': false and \'expected\': \'base64\' returns ' +
+        'a base64 string', function (done) {
+        const data = bigString(1000);
+        context.encrypt({
+            data: data, publicKeys: good_fpr, armor: false, expect: 'base64'
+        }).then(function (answer){
+            expect(answer).to.not.be.empty;
+            expect(answer.data).to.be.a('string');
+            expect(answer.format).to.equal('base64');
+            done();
+        });
+    });
+
     const sizes = [5,20,50];
     for (let i=0; i < sizes.length; i++) {
         it('Successful encrypt a ' + sizes[i] + 'MB message', function (done) {
@@ -114,5 +155,5 @@ describe('Encryption', function () {
             });
     }).timeout(8000);
 
-    // TODO check different valid parameter
+
 });