added sinon.stub to give mock command reply

Author: malikj2000

test/unit/cmap/connection.test.ts

@@ -211,16 +211,12 @@ describe('new Connection()', function () {
       hostAddress: server.hostAddress()
     };
 
-    const serverSpy = sinon.spy(server, 'command');
     const connectAsync = promisify(connect);
     const connection: Connection = await connectAsync(options);
     const commandSpy = sinon.spy(connection, 'command');
 
     await connection.commandAsync(ns('dummy'), { ping: 1 }, {});
     expect(commandSpy).to.have.been.calledOnce;
-
-    await server.commandAsync(ns('dummy'), { ping: 1 }, {});
-    expect(serverSpy).to.have.been.calledOnce;
   });
 
   it('throws a network error with kBeforeHandshake set to true on timeout before handshake', function (done) {

test/unit/sdam/server.test.ts

@@ -68,7 +68,7 @@ describe('Server', () => {
 
     context('when a server is created', function () {
       it('calls the command function through commandAsync', async function () {
-        const serverSpy = sinon.spy(server, 'command');
+        const serverSpy = sinon.stub(server, 'command').yieldsRight(undefined, { ok: 1 });
         await server.commandAsync(ns('dummy'), { ping: 1 }, {});
         expect(serverSpy).to.have.been.calledOnce;
       });