Send INIT eagerly

There is no benefit of queuing the INIT message and it makes error handling
trickier.

Author: pontusmelke

src/v1/internal/connector.js

@@ -323,6 +323,7 @@ class Connection {
     this._packer.packStruct( INIT, [this._packable(clientName), this._packable(token)],
       (err) => this._handleFatalError(err) );
     this._chunker.messageBoundary();
+    this.sync();
   }
 
   /** Queue a RUN-message to be sent to the database */

test/v1/driver.test.js

@@ -47,4 +47,19 @@ describe('driver', function() {
     // When
     driver.session();
   });
+
+  it('should fail early on wrong credentials', function(done) {
+    // Given
+    var driver = neo4j.driver("bolt://localhost", neo4j.auth.basic("neo4j", "who would use such a password"));
+
+    // Expect
+    driver.onError = function (err) {
+      //the error message is different whether in browser or node
+      expect(err.fields[0].code).toEqual('Neo.ClientError.Security.Unauthorized');
+      done();
+    };
+
+    // When
+    driver.session();
+  });
 });

test/v1/tck/steps/authsteps.js

@@ -57,14 +57,12 @@ module.exports = function () {
     var message = this.err.fields[0].message
     var code = this.err.fields[0].code
 
-    // TODO uncomment this once we fix the init sync
-    //var expectedStartOfMessage = 'No operations allowed until you send an INIT message successfully.'
-    var expectedCode = 'Neo.ClientError';
+    var expectedStartOfMessage = 'The client is unauthorized due to authentication failure.';
+    var expectedCode = 'Neo.ClientError.Security.Unauthorized';
 
-    // TODO uncomment this once we fix the init sync
-    //if (message.indexOf(expectedStartOfMessage) != 0) {
-    //  throw new Error("Wrong error messsage. Expected: '" + expectedStartOfMessage + "'. Got: '" + message + "'");
-    //}
+    if (message.indexOf(expectedStartOfMessage) != 0) {
+      throw new Error("Wrong error messsage. Expected: '" + expectedStartOfMessage + "'. Got: '" + message + "'");
+    }
 
     if (code.indexOf(expectedCode) != 0) {
       throw new Error("Wrong error code. Expected: '" + expectedCode + "'. Got: '" + code + "'");

test/v1/tck/steps/tlssteps.js

@@ -151,7 +151,6 @@ module.exports = function () {
     });
 
   this.Then(/^I should get a helpful error explaining that no trusted certificate found$/, function (callback) {
-    console.log(this.error.message);
     var expected = "Server certificate is not trusted. If you trust the database you are connecting to, add the signing " +
       "certificate, or the server certificate, to the list of certificates trusted by this driver using " +
       "`neo4j.v1.driver(.., { trustedCertificates:['path/to/certificate.crt']}). This  is a security measure to protect " +