testing: mock websocket for future tests

[HoppenR]

This allows using a mock websocket to stress test the trivia bot in the future. Intended to be used like this.

mockDialer := func(ctx context.Context, url string, opts *websocket.DialOptions) (WebsocketConn, *http.Response, error) {
	webMocket := new(MockWebSocketConn)
	// Add custom logic for what to return on different calls
	webMocket.On("Read", mock.Anything).Return(SOME_RETURN_VAL)
	return webMocket, nil, nil
}
bot, err := New(
	new(zap.SugaredLogger),
	mockDialer,
	"wss://chat2.strims.gg/ws", // or whatever...
	"placeholderToken",
	true,
	"leaderboardPage",
	"leaderboardIngress",
)
assert.Nil(t, err)
assert.NotNil(t, bot)

[HoppenR]

Can set up different return values from Read() like this.

webMocket.On("Read", mock.Anything).Return(someRet).Once()
webMocket.On("Read", mock.Anything).Return(otherRet).Once()