Add unit test

Author: ZJONSSON

test/unit/connection/test-auth-switch-clear.js

@@ -0,0 +1,41 @@
+var assert     = require('assert');
+var common     = require('../../common');
+var connection = common.createConnection({
+  port     : common.fakeServerPort,
+  password : 'authswitch'
+});
+
+var server = common.createFakeServer();
+
+var connected;
+server.listen(common.fakeServerPort, function (err) {
+  assert.ifError(err);
+
+  connection.connect(function (err, result) {
+    assert.ifError(err);
+
+    connected = result;
+
+    connection.destroy();
+    server.destroy();
+  });
+});
+
+server.on('connection', function(incomingConnection) {
+  incomingConnection.on('authSwitchResponse', function (packet) {
+    this._sendAuthResponse(packet.data, Buffer.from('authswitch'));
+  });
+
+  incomingConnection.on('clientAuthentication', function () {
+    this.authSwitchRequest({
+      authMethodName : 'mysql_clear_password',
+      authMethodData : Buffer.alloc(0)
+    });
+  });
+
+  incomingConnection.handshake();
+});
+
+process.on('exit', function() {
+  assert.equal(connected.fieldCount, 0);
+});