CircleCI has several integrations with various chat systems. Setting up test results to be posted to Slack (or your messaging platform of choice) is a straightforward and effective way to disseminate test results among team members.
In CircleCI, navigate to the Chat Notifications menu item and click on the link in the Slack section. From there, you'll be guided through the setup process for you Slack group. Ultimately, you'll get a webhook URL from Slack, which you will need to enter into CircleCI. Notification will be sent to this Slack webhook, which will post to a particular channel.
The following screenshot shows project settings for this repository within CircleCI and the page where you configure chat notifications: ...