Getting error in ticket - database connection

Hi, Am trying to run connectionPoolingTest.java. am gettign error as below.

[ERROR] Tests run: 1, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 0.703 s <<< FAILURE! - in mflix.api.daos.ConnectionPoolingTest
[ERROR] testConnectionPoolSize(mflix.api.daos.ConnectionPoolingTest) Time elapsed: 0.606 s <<< FAILURE!
java.lang.AssertionError: Do not forget to set the maxPoolSize parameter in your spring.mongodb.uri key in the properties file
at mflix.api.daos.ConnectionPoolingTest.testConnectionPoolSize(ConnectionPoolingTest.java:21)

I have given URI as below in applications. properties.
spring.mongodb.uri=mongodb+srv://m220-student:m220password@mflix.ahwx7.mongodb.net/test

help me to understand where do we need to give maxpoolsize value and how that can be done.