js: change the write access for js class methods

--
* src/ [Connection, Error, Key, Keyring, MEssage, Signature, gpgmejs]:
    Functions and values that are not meant to be overwritten are now
    moved into their constructors, thus eliminating the possibility of
    overwrites after initialization.

* Key: The mode of use (synchronous cached, or async promises) ivs now
  determined at initialization of that Key. The property Key.isAsync
  reflects this state.

* unittests: fixed old Key syntax for testing.

* Message.js isComplete is now a method and not a getter anymore.

* Added some startup tests.

1 files changed, 13 insertions, 2 deletions

diff --git a/lang/js/BrowserTestExtension/tests/startup.js b/lang/js/BrowserTestExtension/tests/startup.js
index dae94025..1e2784d9 100644
--- a/lang/js/BrowserTestExtension/tests/startup.js
+++ b/lang/js/BrowserTestExtension/tests/startup.js
@@ -21,17 +21,28 @@
  *     Maximilian Krambach <[email protected]>
  */
 
-/* global describe, it, expect, Gpgmejs */
+/* global describe, it, expect, Gpgmejs, inputvalues */
 
 describe('GPGME context', function(){
     it('Starting a GpgME instance', function(done){
         let prm = Gpgmejs.init();
+        const input = inputvalues.someInputParameter;
         prm.then(
             function(context){
                 expect(context).to.be.an('object');
                 expect(context.encrypt).to.be.a('function');
                 expect(context.decrypt).to.be.a('function');
+                expect(context.sign).to.be.a('function');
+                expect(context.verify).to.be.a('function');
+                context.Keyring = input;
+                expect(context.Keyring).to.be.an('object');
+                expect(context.Keyring).to.not.equal(input);
+                expect(context._Keyring).to.equal(context.Keyring);
+                expect(context.Keyring.getKeys).to.be.a('function');
+                expect(context.Keyring.getDefaultKey).to.be.a('function');
+                expect(context.Keyring.importKey).to.be.a('function');
+                expect(context.Keyring.generateKey).to.be.a('function');
                 done();
             });
     });
-});
+});
\ No newline at end of file